Elastomer composition, method of fabrication of elastomer product and tread or car tyre insert

FIELD: transportation; chemistry.

SUBSTANCE: invention relates to to elastomer composition containing at least one halogenated butyl elastomer, at least one mineral filler and at least one compound containing silicon. Note that the composition contains a mix of at least one silazane compound as the silicon-containing compound and at least one agent containing at least one amino alcohols. The invention also relates to the method of making an elastomer product by mixing the components of the given elastomer composition with the subsequent vulcanisation of the mix formed, and to the tread or the car tyre insert from the elastomer product thus produced. This elastomer composition may be used in many industrial branches, including the production of treads and its side walls, tyre inserts, covering of various vessels, hoses, conveyor belts, rubber tubes etc.

EFFECT: improved mechanical properties of tyres, higher anti-abrasion properties and lower rolling friction.

13 cl, 10 tbl, 5 ex, 11 dwg

 

The present invention relates to the field of elastomers, in particular an elastomeric composition, the method of production of an elastomer product and to the protector or the liner of the tyre of the car.

Known elastomeric composition comprising at least one halogenated botilony elastomer, at least one mineral filler, such as silica and silanes, acting as distributing and coupling agent between halogenated botulinum elastomer and filler (patent application Canada No. 2293149, published 24 June 2001).

Known elastomeric composition can be used to obtain a halogenated Putilkovo elastomeric product by mixing its ingredients and subsequent vulcanization of the resulting mixture, for example in the presence of sulfur.

A disadvantage of the known elastomeric compositions is that the silanes lead to the selection of alcohol during processing, and potentially during use produced in this way product. This circumstance affects in a negative way in the processing composition. In addition, silanes significantly increase the value obtained in this way product.

The aim of the invention is to provide elastomeric compositions that reduce the cost of manufactured articles of the Oia and the simultaneous improvement of the mechanical properties of the manufactured products, for example tensile strength and resistance to abrasive wear.

This objective is achieved by the invention is an elastomeric composition comprising at least one halogenated botilony elastomer, at least one mineral filler and at least one containing silicon compound, and a characteristic feature of this arrangement is that as containing silicon compounds it includes at least one ciezarowe combination or mixture of at least one ciezarowego connection and at least one additive with at least one hydroxyl group and at least one Deputy, bearing primary amine group, with the ratio of ingredients is as follows (in parts of the mass):

halogenated botilony elastomer 100;

at least one mineral filler 20-250;

not less than one ciezarowe compound or a mixture of not less than

one ciezarowego connection and at least one additive,

containing not less than one hydroxyl group and at least

than one Deputy, bearing amine group of 0.5-20.

Corresponding to the invention, the elastomer composition may also include a stabilizer in a preferred amount of from 0.5 to 5 parts by weight per 100 parts weight galogenirovannami Putilkovo elastomer. In a number of suitable stabilizers include calcium stearate and epoxydecane soybean oil.

An additional object of the invention is a method of obtaining an elastomeric product by mixing halogenated Putilkovo elastomer with at least one mineral filler and at least one containing silicon compound, followed by vulcanization, and a characteristic feature of the process is that as containing silicon compounds are used at least one ciezarowe combination or mixture of at least one ciezarowego connection and at least one additive containing not less than one hydroxyl group and at least one Deputy, the primary amine group.

Halogenated botilony elastomer can be represented as a mixture with another elastomer or mixture of elastomers. Halogenated botilony elastomer can be more than 5% of any such mixture. Preferably, when halogenated botilony elastomer is at least 10% of any such mixture. In some cases, preference is given to using halogenated Putilkovo elastomer as the sole elastomer and not containing mixture. If you still must use the mixture, then the other elastomer may be represented, for example, n is Moralny rubber, the polybutadiene, styrene-butadiene rubber or polychloroprene or a mixture of elastomers containing one or more of these elastomers.

Halogenated botilony elastomer with filler can be vulcanized with the aim of obtaining a product which has improved characteristics, such as resistance to abrasion, resistance to rolling and stretching. Vulcanization may be carried out using sulfur. The preferred amount of sulfur is in the range from 0.3 to 2 parts by weight per hundred parts by weight rubber. Can also be used as an activator such as zinc oxide, in amounts of from 0.5 parts to 2 parts by mass. Before vulcanizing the elastomer may be added other ingredients such as stearic acid, antioxidants or vulcanization accelerators. After that, the sulfur vulcanization is conducted in a known manner. It presents, for example, in the second Chapter "The Compounding and Vulkanization of Rubber" in "Rubber Technology", 3rd edition, published by Chapman and Hall, 1995.

For vulcanization halogenated Budilnik elastomers known to use other vulcanizing means. There are a large number of compounds for curing halogenated Budilnik elastomers, such as bis-dienophiles (for example, HVA2 - m-phenyl-bis-maleinimide), phenolic resins, amines, amino acids, peroxides, zinc oxide and the other substances. It is also possible to use compositions of the above-mentioned vulcanizing means.

Corresponding to the invention halogenated botilony elastomer with mineral filler can be mixed with other elastomers or elastomer mixtures before it is subjected to vulcanization with sulfur. This will be subject to the following further discussion.

Used herein, the term "halogenated botilony elastomer (halogenated butylene elastomers)" refers to chlorinated or pomilovannomu utilname the elastomer. The preferred brominated botulinum elastomers and the present invention is illustrated in the examples that use such brominated butylene elastomers. However, it should be understood that the invention extends to the use of chlorinated Budilnik elastomers.

So, halogenated butylene elastomers suitable for use in implementing the present invention, include brominated butylene elastomers, but are not limited to. Such elastomers can be obtained from the synthesized Putilkovo rubber which is a copolymer of isoolefine, usually isobutylene, and co monomer, usually represented by diolefines with conjugated bonds and with the number of carbon atoms from four to six, pre is respectfully, when it isoprene (brominated isobutylene-isoprene copolymers - BIIR)). However, the use of comonomers other than diolefines with conjugated double bonds, and here it is necessary to mention such alkyl substituted vinylaromatic comonomers as alkyl substituted styrene with the number of carbon atoms in the alkyl group from one to four. An example of such an elastomer, which can be purchased commercially, is commercially available brominated isobutylene-methylstyrene copolymer in which comonomer presents n-methyl-styrene (BIMS).

In a typical case, octabromodiphenyl botilony elastomer comprises from 0.1 to 10 weight percent of repeating structural units on the basis of diolefin (preferably isoprene) and in the range from 90 to 99.9 weight percent of repeating structural units on the basis of isoolefine (preferably isobutylene) (based on contained in the polymer hydrocarbons), as well as in the range from 0.1 to 9 percent by mass of bromine (based on octabromodiphenyl botilony polymer). In a typical case, octabromodiphenyl botilony polymer has a molecular weight, expressed in units of Mooney viscosity according to DIN 53523 (ML 1+8 at 125° (C) in the range from 25 to 60.

Preferably, when used in this invention is commercially available brominated botilony elastomer contains in the range of 0.5 d is 5 percent of the weight of repeating structural units on the basis of isoprene (based on contained in the polymer hydrocarbons) and in the range from 95 to 99.5 weight percent of repeating structural units on the basis of isobutylene (based on contained in the polymer hydrocarbons) and from 0.2 to 3 percent by mass, preferably from 0.75 to 2.3 percent of the mass of bromine (based on octabromodiphenyl botilony polymer).

Examples of suitable brominated Budilnik elastomers include Bayer Bromo-butyl®2030, Bayer Bromobutyl®2040 (BB 2040) and Bayer Bromobutyl®X2, which can be purchased commercially from Bayer. The product of Bayer BB 2040 has a Mooney viscosity (ML 1+8 @ 125° (C)equal to 39±4, bromine content of 2.0±0.3 wt.% and a molecular weight of about 500,000 grams per mole.

Used in the corresponding present invention the process octabromodiphenyl botilony elastomer may also be represented grafted copolymer of brominated Putilkovo rubber with polymer based on conjugated diolefine monomer, which may also include some amount of C-S-(S)nWith links, where n is an integer from 1 to 7. Octabromodiphenyl botilony elastomer in the grafted copolymer can be represented by any of the above elastomers. Related diolefine, which can be included in the composition of the graft copolymer, in General correspond to the structural formula

where R means a hydrogen atom or alkyl group with carbon atoms of from one to eight, and where R1and R11may b the th same or different, and choose them from the group consisting of hydrogen atoms and alkyl groups with carbon atoms of from one to four. Some representative, but not limiting scope of the claims, examples of suitable olefins with conjugated double bonds include 1,3-butadiene, isoprene, 2-methyl-1,3-pentadiene, 4-butyl-1,3-pentadiene, 2,3-dimethyl-1,3-pentadiene, 1,3-hexadiene, 1,3-octadiene, 2,3-dibutil-1,3-pentadiene, 2-ethyl-1,3-pentadiene, 2-ethyl-1,3-butadiene, and the like. Preference is given paired diolefines the monomers containing from four to eight carbon atoms, particularly preferred 1,3-butadiene and isoprene.

The polymer based on a conjugated diene monomer may be homopolymer or a copolymer of two or more conjugated diene monomers, and copolymers with vinyl aromatic monomer.

The vinyl aromatic monomers which may be used, chosen, taking into account the possibility of their copolymerization with the applicable paired diolefine monomers. In the General case can be used any of the vinyl aromatic monomer, if you know that it polymerizes when initiating organic derivatives of alkali metals. Such vinyl aromatic monomers usually contain from eight to twenty carbon atoms, preferably from eight to fourteen ATO is s carbon. Some examples of vinyl aromatic monomers that can be used for copolymerization include styrene, alpha-methylsterol, various alkylthiol, including n-methylsterol, n-mitoxantron, 1-vinylnaphthalene, 2-vinylnaphthalene, 4-vinyltoluene and the like. When copolymerized with one 1,3-butadiene or terpolymerization with 1,3-butadiene and isoprene are preferred styrene.

Halogenated botilony elastomer can be used as the sole elastomer or composition with such elastomers as

BR - polybutadiene,

ABR - copolymers of butadiene and alkylacrylate with the number of carbon atoms in the alkyl group from one to four,

CR - polychloroprene,

IR - polyisoprene,

SBR - styrene-butadiene copolymers with a styrene content of 1 to 60, preferably from 20 to 50 wt.%,

IIR - isobutylene-isoprene copolymers,

NBR - butadiene-Acrylonitrile copolymers containing Acrylonitrile, from 5 to 60, preferably from 10 to 40 wt.%,

HNBR - partially hydrogenated or fully hydrogenated butadiene-Acrylonitrile copolymers,

EPDM - ethylene-propylene-diene copolymers.

The filler is comprised of particles of mineral substances such as silica, silicates, clay (such as bentonite), gypsum, alumina, titanium dioxide, talc and the like, and t is the train from their mixtures.

As other examples include:

- highly dispersed silicas obtained by, for example, by deposition from solutions of silicates or by hydrolysis in the process of burning vapor of silicon halides with hydrogen having a specific surface area ranging from 5 to 1000, preferably from 20 to 400 m2/g (BET specific surface) and the size of the primary particles of from 10 to 400 nm; the silicas can also be presented mixed oxides with other metal oxides, such as oxides of aluminum, magnesium, calcium, barium, zinc, zirconium, and titanium;

synthetic silicates such as aluminum silicate and alkaline earth metal silicates;

- magnesium silicate or calcium silicate, with BET specific surface ranging from 20 to 400 m2/g and the size of the primary parts from 10 to 400 nm;

natural silicates such as kaolin and other naturally occurring silica;

- glass fiber and products based on glass (frosted products, extrudates) or glass microspheres;

- metal oxides, such as zinc oxide, calcium oxide, magnesium oxide and aluminum oxide;

- metal carbonates such as magnesium carbonate, calcium carbonate and zinc carbonate;

- metal hydroxides such as aluminum hydroxide and magnesium hydroxide or mixtures thereof.

These particles of minerals have on the surface hydroxyl who groupings, which make them hydrophilic and oleophobic. This exacerbates the difficulty of achieving good interaction between the filler particles and botulinum elastomer. In many cases, the preferred mineral is silica, in particular silica, obtained from sodium silicate in the deposition of carbon dioxide.

Dried amorphous silica particles suitable for use in accordance with the invention, have the basic size of the agglomerated particles in the range from 1 to 100 microns, preferably from 10 to 50 microns and most preferably from 10 to 25 microns. Preferably, when less than 10 volume percent of the agglomerated particles have a size less than 5 microns, or 50 microns. In addition, suitable dried amorphous silica has a BET-surface area, measured in accordance with DIN (Deutsche Industrie Norm - Industrial norms Germany) 66131, ranging from 50 to 450 square meters per gram and a DBP-absorption, measured in accordance with DIN 53601, ranging from 150 to 400 grams per 100 grams of clementem, as well as the mass loss during drying, measured in accordance with DIN ISO 787/11, ranging from 0 to 10 percent by mass. Suitable fillers of silica available under the trademarks HiSil®210, HiSil® 233 and HiSil® 243 from the company BCP industries Inc. Can also be used Vulkasil® S and Vulkasil® N from BA the EP AG.

Such mineral fillers can be used in combination with known remineralise fillers, such as

- carbon black, and used in this case, soot receive as lamp soot, chimney soot or gas soot, they have a specific BET surface ranging from 20 to 200 m2/g, for example, this soot marks SAF, ISAF, HAF, FEF or GPF; or

- rubber gels, in particular based on polybutadiene, butadiene-styrene copolymers, butadiene-Acrylonitrile copolymers or polychloroprene.

In the relevant invention halogenated Budilnik elastomeric compositions remineralise fillers usually as filler is not used, but in some implementations they may be present in an amount up to 40 parts per 100 parts of rubber. Preferably, when mineral filler is not less than 55% by weight of the total filler. If conforming to the invention, the elastomer composition based on halogenated Putilkovo elastomer is mixed with another elastomer composition, then another composition may contain mineral and/or remineralise fillers.

Ciezarowe connection can have one or more ciezarowych groups, for example, this can be disilane. Preference is given to organic silazane. In ka is este examples, without limiting this volume claims, hexamethyldisilazane, heptamethylnonane, 1,1,3,3-tetramethyldisilazane, 1,3-bis(chloromethyl)tetramethyldisilazane, 1,3-divinyl-1,1,3,3-tetramethyldisilazane and 1,3-divinyltetramethyldisiloxane.

Examples of additives that lead to improved physical properties of mixtures of halogenated Budilnik elastomers, fillers and organic silazane, are proteins, aspartic acid, 6-aminocaproic acid, diethanolamine and triethanolamine. In the preferred case including a hydroxyl group and the amino group of the additive should contain a primary alcohol group and the amino group separated by methylene bridges, which may be branched. Such compounds have the General formula HO-A-NH2where And is alkylenes grupos number of carbon atoms from one to twenty, which can be both linear and branched.

More preferably, when the number of methylene groups between the two functional groups will lie in the range from 1 to 4. Examples of preferred additives are monoethanolamine and N,N-dimethylaminostyryl.

The amount of filler introduced into the composition of halogenated Putilkovo elastomer, is preferably from 30 to 100 parts, more preferably from 40 to 80 parts per hundred parts of elastomer. The amount of si is asenavage compounds is preferably from 1 to 6, more preferably from 2 to 5 parts per hundred parts of elastomer. A number containing a hydroxyl group and amine group of the additive used in combination with silsenafil connection, typically ranges from 0.5 to 10 parts per hundred parts of elastomer, preferably from 1 to 30 parts per hundred parts of elastomer.

In addition, the presence of up to 40 parts facilitates the process of refining oil, preferably from 5 to 20 parts, per hundred parts of elastomer. In addition, it may be a lubricating substance, such fatty acids as stearic acid, in an amount up to three parts by mass, more preferably in an amount up to two parts of the mass.

It is desirable to mix together halogenated botilony elastomer (elastomer), fillers (fillers) and Selatan (silazane) or a mixture of silazane with containing hydroxyl and amine group of the additive at a temperature in the range from 25 to 200°C. Preferably, the temperature at one stage of mixing exceed 60°but particularly preferred temperature range is from 90 to 150°C. In the usual case, the mixing time does not exceed one hour, but usually enough time from two to thirty minutes. The mixture is conveniently carried out in dvukhvolnovom mill mixer, which ensures good dispersion of napolniteljam the elastomer. Mixing can also be carried out in a Banbury mixer or in a miniature internal mixer Haacke or Brabender. Good mixing also provides the extruder, its an additional advantage is that it reduces the time of mixing. Do not exclude the possibility of mixing in two stages or more stages. In addition, the mixing may be performed in different apparatuses, for example, one stage may be carried out in an internal mixer, and the second extruder.

Intensification of interaction between the filler and halogenated botulinum elastomer leads to improved properties of the elastomer with filler. These improved properties include high tensile strength, high resistance to abrasive wear, reduced permeability and improved dynamic performance. It makes filled elastomers are particularly suitable for many practical applications, including their use for the treads and sidewalls of tires, tire liners, liners, containers, hoses, rollers, conveyor belts, rubber cameras, masks, gas masks, containers for pharmacy and gaskets, but their use is not limited to this list.

In a preferred embodiment of the invention octabromodiphenyl botilony elastomer, the hour is itzá, silica, ciezarowe compound or mixture silazane with the additive containing hydroxyl and amine group, and, if necessary, to facilitate the processing of the oil diluent are mixed in dvuhpaltsevoe mill at a nominal temperature in the mill 25°C. the resulting mixture was then placed in duhallow mill and stirred at the temperature above 60°C. Preferably, when the temperature of mixing is not very high, it is most preferable when it does not exceed 150°C, since higher temperatures can lead to a deeper vulcanization, which will prevent further processing. The product obtained by mixing these four ingredients at a temperature not exceeding 150°, is a mixture which has good properties in compression and tension and which can be easily processed further on the hot mill with the addition of the vulcanization agents.

Corresponding to the invention filled compositions based on halogenated Putilkovo rubber and in particular compositions on the basis of the brominated Putilkovo rubber with filler find many applications, but in the first place deserves mention their use in compositions for the preparation of the treads of tires. An important property of the composition for tread of the tires is what about, they have to have low rolling resistance, good transfer of force, especially when wet, and they should have a good resistance to abrasion, that is, they must be resistant to wear. Corresponding to the invention compositions demonstrate these desirable properties. Thus, the indicator of the ability to transfer the force is tangent δ 0°when the increase in tangent δ 0°correlates with improved ability to transfer the force. Indicator of rolling resistance is the value of tangent δ 60°when the reduction of tangent δ 60°correlates with reduced rolling resistance. Rolling resistance is a measure of the resistance of the tire as it moves forward, and the low rolling resistance, it is desirable to reduce fuel consumption. Low modulus, wear at 60°are also an indicator of low rolling resistance. As shown in the following examples according to the invention compositions show high values of tangent δ 0°With low values of tangent δ 60°and a low modulus of wear at 60°C.

Further, the invention is illustrated by the following examples.

Examples

Description of experiments

Resistance to abrasion: DIN 53-56 (emery paper No. 60).

The study of dynamic properties

Dynamic tests (tan δ 0°s and 60°With module wear at 60° (C) spend on equipment CVS. CVS is a dynamic mechanical analyzer for the determination of properties of vulcanized elastomeric material. Dynamic mechanical properties are a measure of the ability to transfer the force, when high values of tangent δ 0°usually corresponds With the best ability to transfer the force. Low values of tangent δ 60°and With particularly low values of modules of wear at 60°are indicators of low rolling resistance. The results of the RPA measurements obtained on the instrument by Alpha Technologies RPA 2000 at 100°at a frequency of 6 cycles per minute. Torsional deformation measured with deformation 0,1, 0,2, 0,5, 1, 2, 5, 10, 20, 50 and 90°.

Rheometric vulcanization:

ASTM D 52-89 rheometer MDR2000E 1° arc and 1.7 Hz.

The description of the ingredients and the overall operation for the preparation of mixtures

Hi-Sil® 233 - silica - PPG.

Sunpar® 2280 - vaseline oil Sun Oil production.

Maglite® D - magnesium oxide production Hall WED.

Octabromodiphenyl botilony elastomer (in all cases commercial Bayer® Bromo-butyl 2030), silica, oil and Selatan or mixture silazane with the additive containing hydroxyl and amine groups, is mixed

i) in the inner tangential Banbury mixer operating at a speed of 77 rpm, using heat adjustment dial Macon at 40°C. the total time of mixing is 6 minutes. The final temperature of the rubber is in the range from 140°to 180°C.

ii) in the mill with two rollers 6"×12"rotating with a speed of 24 and 32 revolutions per minute. The temperature in the mill is set to 25°With time full of homogenization is 10 minutes. Mixed connection then subjected to "heat treatment" within 10 minutes at a temperature of rollers 110°C. the Final temperature of the rubber is equal to 125°C.

Then to the cooled sample type vulcanizing additives at a temperature in the mill 25°C.

Example 1

The effect of the introduction of silazane in a mixture of halogenated Putilkovo elastomer and silica define various prepared mixtures, the composition of which entered hexamethyldisilazane as ciezarowego connection. For comparison, prepared as a control sample a mixture of halogenated Putilkovo elastomer with silica without silazane.

Commercially available brominated isoprene-isobutilene rubber mixed with silazanes and 60 parts per hundred parts of rubber (phr) of silica filler (HiSil® 233) in the tangential mixer Ban is Yeri under the above conditions of mixing. Then in the cold mill to each of the mixtures add the same ingredients for vulcanization (1 part of stearic acid per hundred parts of rubber, 0.5 parts of sulfur per hundred parts of rubber and 1.5 parts of zinc oxide per hundred parts of rubber). Then the mixture vulcanizer or tc(90)+10 minutes at 170°With (for testing abrasion according to DIN), or for tc(90)+5 minutes at 170°and sent for testing. In tables 1 and 2 shows the compositions of the products and data of physical properties for mixtures containing hexamethyldisilazane, and to the mixture, which does not contain a binder for the filler.

In table 1 the data clearly show that the effect of adding hexamethyldisilazane affects the binding and dispersing kremnezemnogo filler in bronirovannom botilinum the elastomer. The ratio M300/M100 is typically used as a comparative measure of the degree of hardening of the filler in the elastomeric mixture (the higher this ratio, the higher strength). While the value of M300/M100 to a mixture of 1 g without hexamethyldisilazane (example 1 g is used here as the control mixture for other examples) is equal to 1.97 of values M300/M100 for mixtures containing hexamethyldisilazane, range from 3.76 to 4,13 (see figure 1). The value of the complex modulus (G*, MPa) at small de is Amaziah, the measured RPA, usually used as a relative measure of the degree of hardening of the filler in the elastomeric mixture (the lower the value of G*, the higher the degree of dispersion of the filler). From the presented data in table 1 clearly follows that adding hexamethyldisilazane to mixtures of brominated Putilkovo rubber and silica significant improvement in the dispersibility of the filler. In particular, for the control mixture G* is set 2934 MPa, whereas for mixtures containing hexamethyldisilazane, this value is in the range from 365 to 631 MPa (see figure 2).

It is important that presented in table 1, the data also show that the improvement of dispersion and bonding of the filler does not affect the General conditions of processing of the resulting mixture. In the study presented in table 1 and figure 3 data on temperature effects on Muni, you might find that the introduction hexamethyldisilazane in these mixtures bronirovannogo Putilkovo rubber and silica significantly improves thermal stability (i.e. leads to an increase of the time t03).

Considering the fact that these compounds are used in the tyre tread, the values of tangent δ 0°s and 60°and modulus, wear (G', MPa) at 60°C. it is important that high values of tangent δ 0°indicate good is sposobnosti transfer efforts whereas low values of tangent δ 60°and high values of G ' at 60°indicate low rolling resistance. Presented in table 2 data shows that hexamethyldisilazane has positive effects on the value of tangent δ 0°and the value of G ' at 60°C. At that time, as a control mixture has a tangent δ (0° (C)equal to 0.23, and G (60° (C)equal to 3.33 MPa, mixtures containing hexamethyldisilazane, the values of tangent δ (0°C) are ranging from 0.49 to 0.88 to, and the values G (60° (C) lies in the range from 0.93 to 1.98 MPa.

Example 2

This patent application Canada No. 2339080 illustrates the positive effect of additives containing at least one hydroxyl group and at least one Deputy, the primary amine group, which they have on the dispersion and hardening of the silica-based compounds halogenated Budilnik elastomers. Taking into account the positive effect manifested in the introduction of hexamethyldisilazane in a mixture of halogenated Putilkovo elastomer and clementem were investigated mixtures hexamethyldisilazane and additives with hydroxyl and amine groups of the type indicated above. In this example investigated the effect achieved by the introduction of mixtures hexamethyldisilazane and monoethanolamine in a mixture of halogen is one of Putilkovo elastomer and silica, prepared in an internal mixer of the Banbury.

Commercially available brominated isoprene-isobutilene rubber is mixed with additives and 60 parts per hundred parts of rubber (phr) of silica filler (HiSil® (233) in the tangential Banbury mixer under the above conditions of mixing. Then in the cold mill to each of the mixtures add the same ingredients for vulcanization (1 part of stearic acid per hundred parts of rubber, 0.5 parts of sulfur per hundred parts of rubber and 1.5 parts of zinc oxide per hundred parts of rubber). Then the mixture vulcanizer or tc(90)+10 minutes at 170°With (for testing abrasion according to DIN), or for tc(90)+5 minutes at 170°and sent for testing. In tables 3 and 4 shows the product compositions and physical properties for mixtures containing hexamethyldisilazane and monoethanolamine, and to the mixture, which contains only monoethanolamine.

In table 3 the data clearly show that the effect of adding hexamethyldisilazane and monoethanolamine, is manifested in the binding and in the dispersion of the filler in bronirovannom botilinum the elastomer. While the value of M300/M100 for the control mixture is 1,97, mixtures containing hexane-tildetilde and monoethanolamine have the meanings M300/M100 within 2,79 to 4.30 (see figure 4). In addition to watching what I marked improvement in the dispersion of the filler adding hexamethyldisilazane and monoethanolamine to the mixtures on the basis of the brominated Putilkovo rubber and silica. In particular, for the control mixture G* is set 2934 MPa, whereas for mixtures containing HEXAMETHYL-disilane and monoethanolamine, this value is in the range from 304 to 1609 MPa (see figure 5). The introduction of 2.9 parts of the mass hexamethyldisilazane per hundred parts of rubber and 2.2 parts of weight of monoethanolamine per hundred parts of rubber or 2.9 parts of the mass hexamethyldisilazane per hundred parts of rubber and 1.1 part of the weight of monoethanolamine per hundred parts of rubber improves the degree of dispersion of the filler in comparison with that observed in mixtures containing only monoethanolamine.

At that time, as presented in table 3 suggest that the addition of hexamethyldisilazane to mixtures of halogenated Putilkovo elastomer with silica and monoethanolamine reduces the value of M300/M100 and increases a volume loss of abrasion according to DIN, it is important to note a marked improvement in thermal stability as a consequence of increased time t03.

Presented in table 4 suggest that hexamethyldisilazane and monoethanolamine have a positive effects on the value of tangent δ 0°and the value of G ' at 60°C. At that time, as a control mixture has a tangent δ (0° (C)equal to 0.23, and the value of G ' (60° (C)equal to 3.33 MPa, mixtures containing hexamethyldisilazane and monoethanolamine value is tangent δ (0° (C) lies in the range from 0.43 to 0.85, and the values G (60° (C) lies in the range from 1.10 to 2.39 MPa. Moreover, mixtures that contain 2,9 part of the mass hexamethyldisilazane per hundred parts of rubber and 2.2 parts of weight of monoethanolamine per hundred parts of rubber or 2.9 parts of the mass hexamethyldisilazane per hundred parts of rubber and 1.1 part of the weight of monoethanolamine per hundred parts of rubber, have higher values of tangent δ (0°C) and G (60°C), the mixture based on halogenated Putilkovo elastomer and silica containing only monoethanolamine.

Example 3

In this example investigated the effect of the introduction of the mixtures hexamethyldisilazane and monoethanolamine in a mixture based on halogenated Putilkovo elastomer and silica obtained in the mill 6"×12".

Commercially available brominated isoprene-isobutilene rubber (BIIR) is mixed with additives and 60 parts per hundred parts of rubber (phr) of silica filler (HiSil® 233) in the mill 6"×12" under the above conditions of mixing. Then in the cold mill to each of the mixtures add the same ingredients for vulcanization (1 part of stearic acid per hundred parts of rubber, 0.5 parts of sulfur per hundred parts of rubber and 1.5 parts of zinc oxide per hundred parts of rubber). Then the mixture vulcanizer or tc(90)+10 minutes at 170°With (for testing abrasive wear on but the moms DIN), or tc(90)+5 minutes at 170°and sent for testing. In tables 5 and 6 show product compositions and physical properties for mixtures containing hexamethyldisilazane and monoethanolamine, and to the mixture, which contains only monoethanolamine.

In table 5 the data clearly show that the effect of adding hexamethyldisilazane and monoethanolamine, is manifested in the binding and in the dispersion of the filler in bronirovannom botilinum the elastomer. While the value of M300/M100 for the control mixture is 1,97, a mixture containing hexamethyldisilazane and monoethanolamine have the meanings M300/M100 within between 4.02 6.00 (see Fig.6). In addition, there is a significant improvement in the dispersibility of the filler adding hexamethyldisilazane and monoethanolamine to the mixtures on the basis of the brominated Putilkovo rubber and silica. In particular, for the control mixture G* is set 2934 MPa, whereas for mixtures containing hexamethyldisilazane and monoethanolamine, this value is in the range from 256 to 538 MPa (see Fig.7). Introduction hexamethyldisilazane in combination with monoethanolamine noticeably improves as the degree of hardening of the filler (M300/M100), and the degree of dispersion (G* at small strains) compared to that observed in mixtures containing only MES is ethanolamine.

Presented in table 5, the data allow to assume that the addition of hexamethyldisilazane to mixtures of halogenated Putilkovo elastomer with silica and monoethanolamine reduces the volumetric loss of abrasion according to DIN compared with the control mixtures containing only monoethanolamine.

Presented in the table 6 data suggest that hexamethyldisilazane and monoethanolamine have a positive effects on the value of tangent δ 0°and the value of G ' at 60°C. At that time, as a control mixture has a tangent δ (0° (C)equal to 0.23, and G (60° (C)equal to 3.33 MPa, mixtures containing hexamethyldisilazane and monoethanolamine, the values of tangent δ (0°) Are in the range from 0.50 to 0,86, and the values G (60° (C) are in the range from 0,69 to 1.78 MPa. Moreover, mixtures which contain as hexamethyldisilazane and monoethanolamine, have higher values of tangent δ (0°C) and G (60°C), the mixture based on halogenated Putilkovo elastomer and silica containing only monoethanolamine.

Example 4

In this example investigated the effect achieved by the introduction of mixtures hexamethyldisilazane and N,N-dimethylaminoethanol in a mixture of halogenated Putilkovo elastomer and silica prepared in a Banbury mixer.

Commercially available brominated isoprene-isobutylene the first rubber is mixed with additives and 60 parts per hundred parts of rubber (phr) of silica filler (HiSil® 233) in the tangential Banbury mixer under the above conditions of mixing. Then in the cold mill to each of the mixtures add the same ingredients for vulcanization (1 part of stearic acid per hundred parts of rubber, 0.5 parts of sulfur per hundred parts of rubber and 1.5 parts of zinc oxide per hundred parts of rubber). Then the mixture vulcanizer or tc(90)+10 minutes at 170°With (for testing abrasion according to DIN), or for tc(90)+5 minutes at 170°and sent for testing. In tables 7 and 8 shows the product compositions and physical properties for mixtures containing hexamethyldisilazane and N,N-dimethylaminoethanol, and to the mixture, which contains only the N,N-dimethylaminoethanol.

In table 7 the data clearly show that the effect of adding hexamethyldisilazane and N,N-dimethylaminoethanol, is manifested in the binding and in the dispersion of the filler in bronirovannom botilinum the elastomer. While the value of M300/M100 for the control mixture is 1,97, a mixture containing hexamethyldisilazane and N,N-dimethylaminoethanol, matter M300/M100 within 2,93 to 4,27 (see Fig). In addition, there is a significant improvement in the dispersion of the filler adding hexamethyldisilazane and N,N-dimethyl-aminoethanol to the mixtures on the basis of the brominated Putilkovo rubber and kr is Masema. In particular, for the control mixture G* is set 2934 MPa, whereas for mixtures containing hexamethyldisilazane and N,N-dimethylaminoethanol, this value is in the range from 227 to 1056 MPa (see Fig.9). The introduction of 2.9 parts of the mass hexamethyldisilazane per hundred parts of rubber and 3.2 parts of weight N,N-dimethylaminoethanol per hundred parts of rubber or 2.9 parts of the mass hexamethyldisilazane per hundred parts of rubber and 1.6 parts of weight N,N-dimethylaminoethanol per hundred parts of rubber improves the degree of dispersion of the filler in comparison with that observed in mixtures containing only N,N-dimethylaminoethanol.

At that time, as presented in table 7 suggest that the addition of hexamethyldisilazane to mixtures of halogenated Putilkovo elastomer with silica and N,N-dimethylaminoethanol reduces the value of M300/M100 and increases a volume loss of abrasion according to DIN, it is important to note the fact of improved thermal stability by increasing the time t03, distinguishing these compounds.

Presented in table 8, the data suggest that hexamethyldisilazane and N,N-dimethylaminoethanol have a positive effect on the value of tangent δ 0°and the value of G ' at 60°C. At that time, as a control mixture has a tangent δ (0° (C)equal to 0.23, and G (60° (C)equal to 3.33 MPa, from mixtures containing hexameric lazan and N,N-dimethylaminoethanol, values of tangent δ (0° (C) lies in the range from 0.45 to 0.82, and the values G (60° (C) lies in the range from 0.48 to 2,31 MPa. Moreover, mixtures that contain 2,9 part of the mass hexamethyldisilazane per hundred parts of rubber and 3.2 parts of weight N,N-dimethylaminoethanol per hundred parts of rubber or 2.9 parts of the mass hexamethyldisilazane per hundred parts of rubber and 1.6 parts of weight N,N-dimethylaminoethanol per hundred parts of rubber, have higher values of tangent δ (0°C) and G (60°C), the mixture based on halogenated Putilkovo elastomer and silica containing only N,N-dimethylaminoethanol.

Example 5

In this example investigated the effect of the introduction of the mixtures hexamethyldisilazane and N,N-dimethylaminoethanol in a mixture based on halogenated Putilkovo elastomer and silica obtained in the mill 6"×12".

Commercially available brominated isoprene-isobutilene rubber (BIIR) is mixed with additives and 60 parts per hundred parts of rubber (phr) of silica filler (HiSil® 233) in the mill 6"×12" under the above conditions of mixing. Then in the cold mill to each of the mixtures add the same ingredients for vulcanization (1 part of stearic acid per hundred parts of rubber, 0.5 parts of sulfur per hundred parts of rubber and 1.5 parts of zinc oxide per hundred parts of rubber). Then the mixture vulcanizer or tc(90)+10 minute PR is 170° (For testing abrasion according to DIN), or for tc(90)+5 minutes at 170°and sent for testing. In tables 9 and 10 shows the product compositions and physical properties for mixtures containing hexamethyldisilazane and N,N-dimethylaminoethanol, and to the mixture, which contains only the N,N-dimethylaminoethanol.

In table 9, the data clearly show that the effect of adding hexamethyldisilazane and N,N-dimethylaminoethanol, is manifested in the binding and in the dispersion of the filler in bronirovannom botilinum the elastomer. While the value of M300/M100 for the control mixture is 1,97, a mixture containing hexamethyldisilazane and N,N-dimethylaminoethanol, matter M300/M100 in the range of up to 4.41 6,55 (see figure 10). In addition, there is a significant improvement in the dispersibility of the filler adding hexamethyldisilazane and N,N-dimethylaminoethanol to the mixtures on the basis of the brominated Putilkovo rubber and silica. In particular, for the control mixture G* is set 2934 MPa, whereas for mixtures containing hexamethyldisilazane and N,N-dimethylaminoethanol, this value is in the range from 245 to 742 MPa (see 11). The introduction of 2.9 parts of the mass hexamethyldisilazane per hundred parts of rubber and 3.2 parts of weight N,N-dimethylaminoethanol per hundred parts of rubber or 2.9 parts of the mass hexamethyldisilane is on one hundred parts of rubber and 1.6 parts of weight N,N-dimethylaminoethanol per hundred parts of rubber obviously improves as the degree of hardening of the filler (M300/M100), and the degree of dispersion (G* at small strains) compared to that observed in mixtures containing only N,N-dimethylaminoethanol.

Presented in table 9 data on thermal effect Mooney also illustrate a positive impact on the time t03 (increased value of time t03 consistent with improved material processing AIDS), observed with the introduction of hexamethyldisilazane in a mixture of the brominated Putilkovo elastomer, silica and N,N-dimethylaminoethanol.

Presented in table 10 data suggest that hexamethyldisilazane and N,N-dimethylaminoethanol have a positive effects on the value of tangent δ 0°and the value of G ' at 60°C. At that time, as a control mixture has a tangent δ (0° (C)equal to 0.23, and G (60° (C)equal to 3.33 MPa, mixtures containing hexamethyldisilazane and N,N-dimethylaminoethanol values of tangent δ (0° (C) lies in the range from 0.56 to 0,86, and the values G (60° (C) lies in the range from 0.42 to 1.61 MPa. Moreover, mixtures that contain 2,9 part of the mass hexamethyldisilazane per hundred parts of rubber and 3.2 parts of weight N,N-dimethylaminoethanol per hundred parts of rubber or 2.9 parts of the mass hexamethyldisilazane per hundred parts of rubber and 1.6 parts of weight N,N-dimethylaminoethanol per hundred parts of rubber have higher values of tangent δ (0°C) and G (60� C), the mixture based on halogenated Putilkovo elastomer and silica containing only N,N-dimethylaminoethanol.

3,92
Table 1
(GMDS - hexamethyldisilazane)
Example1A1B1B1 g
Supplements

Additive (phr)
GMDS

5,8
GMDS

2,9
GMDS

1,45
Control

0
Load tensile (Die With Dumbells, vulcanization tc90+5 minutes, the temperature of the experiments 23°)
Hard. Shore A2 Inst. (PP)51606780
Ultimate load tension (MPa)18,2718,717,7611,22
Ultimate elongation (%)876800752894
Strain (% strain)Load (MPa)Load (MPa)Load (MPa)Load (MPa)
250,60,861,22,1
500,7711,252,02
100 1,051,281,481,97
2002,022,492,792,62
3004,075,285,563,89
300/1003,884,133,761,97
Abrasion according to DIN (vulcanization tc 90+10 minutes at 170°)
Abrasive loss of volume (mm3)282190189283
Thermal test Mooney small rotor experiments at 130°)
t value t03 (minutes)10,2615,2311,892,52
t value t18 (minutes)24,2122,2314,789,34
t value t18-t03 (minutes)13,9572,896,82
MDR-vulcanization characteristics (experiences in 170°, 1° arc, 1.7 Hz)
MN (Nam·m)18,0824,2728,7732,04
ML (Nam·m)3,715,128,2817,86
Delta t'50-t'10 (minutes)4,363,198,33
RPA-Effect Payne (experiments at 100°C, 30 cycles per minute)
Deformation in %G*kPaG*kPaG*kPaG*kPa
0,28365,97466,02631,42934
0,98413,78520,18721,143134

Table 2
(GMDS - hexamethyldisilazane)
Example1A1B1B1G
Supplements

Additive (phr)
GMDS

5,8
GMDS

2,9
GMDS

1,45
Control

0
CVS (vulcanization tc 90+5 170°temperature experiments from -100°to 100°)
Tangent δ 0°0,880,680,490,23
Tangent δ 60°0,230,210,170,08
G at 60°With (MPa)0,931,371,983,33

Table 3
(GMDS - hexamethyldisilazane, IEA - monoethanolamine)
Example2A2B2B2 g2D
Supplements

Additive (phr)
IEA

2,2
GMDS/IEA

2,9/2,2
GMDS/IEA

2,9/1,1.
GMDS/IEA

1,45/1,1
GMDS/IEA

1,45/0,55
Load tensile (Die With Dumbells, vulcanization tc90+5 minutes, the temperature of the experiments 23°)
Hard. Shore A2 Inst. (PP)7156537070
Ultimate load tension (MPa)14,8815,9115,6616,29of 16.05
Ultimate elongation (%)3405678219091036
Strain (% strain)Load (MPa)Load (MPa)Load (MPa)Load (MPa)Load (MPa)
251,460,7730,6891,3of 1.34
501,750,9990,854of 1.341,3
100/td> 2,711,631,131,581,4
2006,664,082,142,792,23
30012,797,013,894,733,91
300/1004,724,303,442,992,79
Abrasion according to DIN (vulcanization tc 90+10 minutes at 170°)
Abrasive loss of volume (mm3)232303341292291
Thermal test Mooney (small rotor experiments at 130°)
t value t03 (minutes)0,093,027,146,2711,35
t value t18 (minutes)1,71of 4.3811,8910,8121,92
t value t18-t03 (minutes)1,621,364,754,5410,57
MDR-vulcanization characteristics (experiences in 170°, 1° arc, 1.7 Hz)
MN (Nam·m)34,6121,6418,6732,74of 31.4
ML (Nam·m)9,243,713,356,637,4
Delta t'50-t'10 (minutes)2,644,35,983,514,04
RPA-Effect Payne (experiments at 100°C, 30 cycles per minute)
Deformation in %G*kPaG*kPaG*kPaG*kPaG*kPa
0,28676,38304,68374,2515551609,8
0,98717,37346,05381,161691,11720,9

Table 4
(GMDS - hexamethyldisilazane, IEA - monoethanolamine)
Example2A2B2B2G2D
Supplements

Additive (phr)
IEA

2,2
GMDS/IEA

2,9/2,2
GMDS/IEA

2,9/1,1
GMDS/IEA

1,45/1,1
GMDS/IEA

1,45/0,55
CVS (vulcanization tc90+5 170°temperature experiments from -100°to 100°)
Tangent δ 0° 0,500,820,850,450,43
Tangent δ 60°0,110,200,230,140,14
G at 60°With (MPa)1,611,131,102,322,39

Table 5
(GMDS - hexamethyldisilazane, IEA - monoethanolamine)
Example3A3b3b3G3D
Supplements

Additive (phr)
IEA

2,2
GMDS/IEA

2,9/2,2
GMDS/IEA

2,9/1,1
GMDS/IEA

1,45/1,1
GMDS/IEA

1,45/0,55
Load tensile (Die With Dumbells, vulcanization tc90+5 minutes, the temperature of the experiments 23°)
Hard. Shore A2 Inst. (PP)8055556765
Ultimate load tension (MPa)17,417,4520,517,5720,63
Ultimate elongation (%)405387498588624
Strain (% strain)Load (MPa)Load (MPa)Load (MPa)Load (MPa)Load (MPa)
252,420,80,791,281,21
503.04 from1,21,091,411,37
1005,542,281,921,881,79
20010,786,695,693,98of 3.77
30014,8613,07to 11.527,56of 7.75
300/1002,685,736,00as 4.024,33
Abrasion according to DIN (vulcanization tc90+10 minutes at 170°)
Abrasive loss of volume (mm3)263181159213174
Thermal test Mooney (small rotor experiments at 130°)
t value t03 (minutes)a 3.90,093,474,1310,98
t value t18 (minutes)5,32 0,95of 6.716,3416,73
t value t18-t03 (minutes)1,420,863,24of 2.21of 5.75
MDR-vulcanization characteristics (experiences in 170°, 1° arc, 1.7 Hz)
MN (Nam·m)45,93of 17.5grade of 20.0632,3931,04
ML (Nam·m)12,834,86to 4.527,187,83
Delta t'50-t'10 (minutes)1,213,43,422,452,55
RPA-Effect Payne (experiments at 100°C, 30 cycles per minute)
Deformation in %G*kPaG*kPaG*kPaG*kPaG*kPa
0,281577,2256,55255,86590,43537,89

Table 6
(GMDS - hexamethyldisilazane, IEA - monoethanolamine)
Example3A3b3b3G3D
Supplements

Additive (phr)
IEA

2,2
GMDS/IEA

2,9/2,2
GMDS/IEA

2,9/1,1
GMDS/IEA

1,45/1,1
GMDS/IEA

1,45/0,55
CVS (vulcanization tc90+5 170°temperature experiments from -100°to 100°)
Tangent δ 0°0,280,840,860,500,56
Tangent δ 60°0,080,160,180,140,14
G at 60°With (MPa)2,910,690,881,781,59

70 901,32
Table 7
(GMDS - hexamethyldisilazane, DMAE - dimethylaminoethanol)
Example4A4B4B4G4D
Supplements

Additive (phr)
DMAE

3,2
GMDS/DMAE

2,9/3,2
GMDS/DMAE

2,9/1,6
GMDS/DMAE

1,45/1,6
GMDS/DMAE

1,45/0,8
Load tensile (Die With Dumbells, vulcanization tc90+5 minutes, the temperature of the experiments 23°)
Hard. Shore A2 Inst. (PP)64545469
Ultimate load tension (MPa)20,7318,2617,7917,4515,97
Ultimate elongation (%)428585715756924
Strain (% strain)Load (MPa)Load (MPa)Load (MPa)Load (MPa)Load (MPa)
251,130,7340,741,261,32
501,471,0511,36of 1.34
1002,481,731,51,71,54
2007,294,423,393,372,6
30013,918,216,415,964,51
300/1005,614,214,273,512,93
Abrasion according to DIN (vulcanization tc90+10 minutes at 170°)
Abrasive loss of volume (mm3)156161204236243
Thermal test Mooney (small rotor experiments at 130°)
t value t03 (minutes)0,324,867,17the 7.8513,6
t value t18 (minutes)the 4.77,412,9313,1325,93
t value t18-t03 (minutes)of 4.382,545,765,28of 12.33
MDR-vulcanization characteristics (experiences in 170°, 1° arc, 1.7 Hz)
MN (Nam·m)29,0122,7421,332,9132,19
ML (Nam·m)8,915,17of 4.385,795,74
Delta t'50-t'10 (minutes)2,083,064,873,724,67
RPA-Effect Payne (experiments at 100°C, 30 cycles per minute)
Deformation in %G*kPaG*kPaG*kPaG*kPaG*kPa
0,28504,7227,53267,66806,941056,2
0,98531,22266,22280,891149,6

Table 8
(GMDS - hexamethyldisilazane, DMAE - dimethylaminoethanol)
Example4A4B4B4G4D
Supplements

Additive (phr)
DMAE

3,2
GMDS/DMAE

2,9/3,2
GMDS/DMAE

2,9/1,6
GMDS/DMAE

1,45/1,6
GMDS/DMAE

1,45/0,8
CVS (vulcanization tc90+5 170°temperature experiments from -100°to 100°)
Tangent δ 0°0,700,820,840,560,45
Tangent δ 60°0,100,110,140,140,14
G at 60°With (MPa)0,800,480,661,612,31

3,98
Table 9
(GMDS - hexamethyldisilazane, DMAE - dimethylaminoethanol)
Example5A5B5V5g5D
Additives which

Additive (phr)
DMAE

3,2
GMDS/DMAE

2,9/3,2
GMDS/DMAE

2,9/1,6
GMDS/DMAE

1,45/1,6
GMDS/DMAE

1,45/0,8
Load tensile (Die With Dumbells, vulcanization tc90+5 minutes, the temperature of the experiments 23°)
Hard. Shore A2 Inst. (PP)6853536765
Ultimate load tension (MPa)20,8122,3221,5320,9620,26
Ultimate elongation (%)494552559569614
Strain (% strain)Load (MPa)Load (MPa)Load (MPa)Load (MPa)Load (MPa)
251,360,730,751,331,24
501,611,041,041,581,4
1002,521,741,732,391,89
2007,03the 5.255,155,764.09 to
30013,04 11,410,9710,968,33
300/1005,176,556,344,59to 4.41
Abrasion according to DIN (vulcanization tc90+10 minutes at 170°)
Abrasive loss of volume (mm3)171218245161154
Thermal test Mooney (small rotor experiments at 130°)
t value t03 (minutes)0,1211,520,188,8926,49
t value t18 (minutes)5,2323,24>3020,9730
t value t18-t03 (minutes)5,1111,74NR12,08NR
MDR-vulcanization characteristics (experiences in 170°, 1° arc, 1.7 Hz)
MN (Nam·m)35,7219,8119,5534,5230,34
ML (Nam·m)accounted for 10.39of 5.815,129,17a 9.09
Delta t'50-t'10 (minutes)2,618,098,493,79
RPA-Effect Payne (experiments at 100°C, 30 cycles per minute)
Deformation in %G*kPaG*kPaG*kPaG*kPaG*kPa
0,28672,69245,56270,49646,73742,46
0,98724,12251,58275,81769,07842,28

Table 10
(GMDS - hexamethyldisilazane, DMAE - dimethylaminoethanol)
Example5A5B5V5g5D
Supplements

Additive (phr)
DMAE

3,2
GMDS/DMAE

2,9/3,2
GMDS/DMAE

2,9/1,6
GMDS/DMAE

1,45/1,6
GMDS/DMAE

1,45/0,8
CVS (vulcanization tc90+5 170°temperature experiments from -100°to 100°)
Tangent δ 0°0,550,860,860,560,56
Tangent δ 60°0,110,110,130,130,15
G' at 60° (MPa)1,400,420,531,461,61

1. An elastomeric composition containing at least one halogenated botilony elastomer, at least one mineral filler and at least one containing silicon compound, characterized in that as containing silicon compounds it contains a mixture of not less than one ciezarowego connection and at least one additive containing at least one amerosport, in the following ratio of ingredients, parts by weight:

halogenated botilony elastomer100
at least one mineral filler20-250
a mixture of not less than one ciezarowego connection
and supplements containing at least one amerosport0,5-20

2. The elastomeric composition according to claim 1, characterized in that it additionally contains a stabilizer in an amount of from 0.5 to 5 parts by weight per 100 parts by weight of halogenated Putilkovo elastomer.

3. The elastomeric composition according to claim 1, characterized in that it further contains sulfur in a quantity from 0.5 to 2 parts by weight per 100 parts by weight of halogenated Putilkovo elastomer.

4. The method of obtaining elastome the aqueous product by mixing halogenated Putilkovo elastomer with at least one mineral filler and at least one containing silicon compound and subsequent vulcanization, characterized in that, as containing silicon compound, a mixture of not less than one ciezarowego connection and at least one additive containing at least one amerosport, and these components are taken in the following ratio, parts by weight:

halogenated botilony elastomer100
at least one mineral filler20-250
a mixture of not less than one ciezarowego connection
and supplements containing at least one amerosport0,5-20

5. The method according to claim 4, characterized in that ciezarowe compound is an organic ciezarowe connection.

6. The method according to claim 5, characterized in that ciezarowe connection is diseasemovie connection.

7. The method according to claim 4, characterized in that the mineral filler is chosen from the group consisting of normal or highly disperse silica, silicates, clay (such as bentonite), gypsum, alumina, titanium dioxide, talc and mixtures thereof.

8. The method according to claim 4, characterized in that the halogenated botilony elastomer is a commercially available brominated botilony elastomer.

9. The method according to one of claims 4 to 8, characterized in that the number of silazane is in the range from 0.5 to 10 parts by weight of one hundred parts by weight elastomer.

10. The method according to claim 4, characterized in that the halogenated botilony elastomer optionally mixed with a stabilizer in an amount of from 0.5 to 5 parts by weight per 100 parts by weight of elastomer.

11. The method according to claim 4, characterized in that the halogenated botilony elastomer with filler mixed with another elastomer or mixture of elastomers before vulcanization.

12. The method according to claim 4, characterized in that the halogenated botilony elastomer with filler vulcanizer with sulfur in a quantity of from 0.3 to 2.0 parts by weight of

13. Protector or liner of the tire of the vehicle, obtained from an elastomeric product prepared by the method according to claim 4.



 

Same patents:

FIELD: physics.

SUBSTANCE: invention refers to size control method for disperse particles in thermoplastic elastomer composition. Disperse particle size control method includes mixing in melt of the following: (A) halogenated isobutylene elastomer, (B) polyamide, (C) dispersion supplement, and (D) traditional additives. Resulting mixture is subjected to dynamic vulcanization thus forming dynamically vulcanized resin mix; halogenated isobutylene elastomer is dispersed in polyamide matrix at volume-averaged diameter of dispersion particles Dv from 0.01 to 2.5 μm.

EFFECT: thermoplastic elastomer composition with controllable size of disperse elastomer particles and improved durability and impermeability.

8 cl, 2 dwg, 3 tbl, 13 exrsid7429359

FIELD: polymer materials.

SUBSTANCE: thermoplastic elastomer composition contains dynamically vulcanized mixture of partially vulcanized halogenated isobutylene elastomer, polyamide, and conventionally utilized additives, wherein stretching elasticity modulus at 100% elongation for elastomer distributed in polyamide is less than 0.60 MPa and wherein halogenated elastomer is, in particular, brominated or chlorinated one. Preparation of thermoplastic elastomer composition involves dynamic vulcanization of halogenated isobutylene elastomer, polyamide, and conventionally utilized additives at temperature lower than 185°C.

EFFECT: improved durability and flexibility of composition.

11 cl, 2 tbl, 2 ex

FIELD: rubber compositions, chemical technology.

SUBSTANCE: invention relates to rubber mixture compositions and methods for their preparing. Preparing a rubber mixture composition involves mixing from 5 to 90 wt.-% of rubber component chosen from butyl rubber, halogenated butyl rubber, stellate butyl rubber, halogenated stellate butyl rubber, isobutylene homopolymer, chloroprene, butadiene-nitrile rubbers, ethylene-propylene-diene triple copolymers, ethylene-propylene copolymers, butadiene styrene rubbers, polybutadiene, polyisoprene, isoolefin-alkylstyrene copolymer, halogenated isoolefin-alkylstyrene copolymer, natural rubber, polypropylene, polyethylene, polyurethane, polyvinyl chloride, silicon rubber, propylene oxide polymer and their mixtures, from 0.01 to 5 wt.-% of amine compound represented by the formula: (R1R2R3)N wherein R1 means either hydrogen atom or hydrocarbyl group comprising from C4 to C30 carbon atoms; R2 means either hydrogen atom or hydrocarbyl group comprising from C1 to C30 carbon atoms, and R3 means either hydrogen atom or hydrocarbyl group comprising from C1 to C30 carbon atoms under condition that at least one radical among R1, R2 and R3 doesn't mean hydrogen atom, from 5 to 90 wt.-% of isoolefin copolymer comprising a link derivatized from halogenmethylstyrene, isoolefin link comprising from 4 to 7 carbon atoms, and copolymer comprises from 0.5 to 20 wt.-% of halogenmethylstyrene links and usual additives. Invention provides preparing the rubber mixture composition possessing the enhanced strength before treatment and enhanced stability against heat aging after vulcanization.

EFFECT: improved preparing method, improved and valuable properties of composition.

51 cl, 4 tbl, 3 ex

FIELD: polymer materials.

SUBSTANCE: invention relates to thermoplastic elastomer composition for manufacturing products such as films, which composition contains dynamically curable mixture of (A) halogenated isobutylene/p-methylstyrene copolymer, (B) polyamide, and (C) antioxidant having melting point above 70°C and below 200°C, granulated elastomer (A) obtained by granulation in presence of antioxidant (C) as granulator being dispersed as a domain in the continuous phase of polyamide (B) and composition containing (A) and (B) components being dynamically cured. Thus obtained film is characterized by better stretching than film made from composition containing curing agent as granulator and by excellent durability and stability at low temperature as compared to film made from talc-containing composition.

EFFECT: increased durability, heat resistance, elasticity and air impermeability.

7 cl, 3 tbl, 5 ex

FIELD: polymer materials.

SUBSTANCE: invention relates to elevated-viscosity halogenated elastomers as constituents of thermoplastic composition,. The latter comprises thermoplastic material and at least one isoolefin copolymer including unit derived from halomethylstyrene, which are mixed with at least one hindered amine or phosphine of formula R1R2R3N or R1R2R3P. In a preferred embodiment, R1,R2, andR3 represent lower and higher alkyl groups. Thus obtained ionically bound amine- or phosphine-modified elastomers are suitable for preparing thermoplastic mixed elastomeric compositions.

EFFECT: improved mixing homogeneity due to elevated viscosity of copolymer and formation of finer dispersion of one polymer system in the matrix of another polymer system.

20 cl, 10 tbl, 5 ex

FIELD: polymer materials.

SUBSTANCE: invention relates to air bladders such as inner tire cover or pneumatic tire tube including composition based on halogenated terpolymer constituted by units derived from C4-C8-isoolefins, units derived from C4-C14-multiolefins, and units derived from p-alkylstyrene. Compositions based on halogenated terpolymer are characterized by low air permeability, good adhesion to tire body, and acceptable longevity, which all allows their use in manufacture of air bladder.

EFFECT: improved performance characteristics of air bladders.

11 cl, 1 dwg, 8 tbl

FIELD: polymer mixtures and rubber industry.

SUBSTANCE: low-permeable elastomer composition useful in manufacturing pneumatic diaphragm such as inside shell of tire comprises elastomer, filler, stratified clay, polybutene softener having molecular mass 400 to 10000, and curing agent. Elastomer can be random copolymer including unit derived from C4-C7-isomonoolefin and can be selected from halogenated isobutylene/p-methylstyrene copolymer, star-shaped butyl rubber, halogenated butyl rubber, and their combinations. Composition as a whole forms nanocomposite. Prior to be mixed with copolymer, clay may optionally be subjected to additional stratification treatment.

EFFECT: improved pneumatic diaphragm properties of composition and improved processability thereof.

13 cl, 19 tbl, 44 ex

FIELD: rubber industry; automotive industry; production of the sealing layer at manufacture of the tubeless tires and the pneumatic constructions.

SUBSTANCE: the invention is pertaining to rubber industry and the automotive industry and is dealt with production of the sealing layer at manufacture of the tubeless tires and the pneumatic constructions. The rubber mixture contains the isoprene rubber, the filled chlorbutyl rubber produced by interaction at comixing of the butyl rubber and the hlorinated hydrocarbon of the common formulaСnН(2n+2)С1х, where n = 10-30, х = 7-24, at the temperature of 80-150°С at the presence of the colloid silicon dioxide introduced into the mixture in the process of their comixing, brimstone, the sulfonamide accelerant, the stearic acid, zinc oxide, the high-pressure polyethylene, the engineering carbon, the alkylphenolamide resin. The technical result of the invention consists in the increased protection of the rubber mixture from the possible premature vulcanization in the processes of its preparation and reprocessing.

EFFECT: the invention ensures the increased protection of the rubber mixture from the possible premature vulcanization in the processes of its preparation and reprocessing.

2 tbl, 1 ex

FIELD: polymer materials.

SUBSTANCE: invention relates to elevated-viscosity thermoplastic halogenated elastomer compositions and to a process for preparing the same. Composition according to invention contains thermoplastic polymer, at least one isoolefin copolymer comprising unit derived from halomethylstyrene, and at least one hindered amine or phosphine compound having the respective structure R1R2 R3N or R1R2R3P wherein R1 is H or C-1-C6-alkyl, R2 is C1-C30-alkyl and R3 is C4-C30-alkyl and further wherein R3 represents alkyl higher than R-1. A process for preparing elevated-viscosity thermoplastic composition consists in mixing thermoplastic polymer, at least one isoolefin copolymer comprising unit derived from halomethylstyrene, and at least one hindered amine or phosphine compound to obtain thermoplastic elastomer compositions, including dynamically cured ones, containing more finely dispersed elastomer.

EFFECT: improved mechanical properties.

4 cl, 10 tbl

Rubber composition // 2254348

FIELD: rubber industry.

SUBSTANCE: invention concerns a method for grafting polymers based on conjugated diene monomers to brominated butyl rubbers and using thus obtained grafted copolymers in rubber compositions, which, after vulcanization, acquire improved physical characteristics. Grafting procedure comprises mixing solid brominated butyl rubber with solid polymers based on conjugated diene monomer including some quantity of bonds C-S-(S)n-C with n being an integer equal from 1 to 7. Mixing is conducted at temperature above 50 over a period of time long enough to complete the grafting. Rubber composition containing above grafted polymer optionally includes one or more curing agents. Cured rubber composition is intended for manufacturing tracks.

EFFECT: increased shock-absorbing capacity of products.

14 cl, 5 dwg, 5 tbl, 3 ex

FIELD: household chemical goods.

SUBSTANCE: invention relates to rubber-bitumen mastic containing bitumen, rubber crumb, plasticizer, and extender and is characterized by that mastic further contains butadiene-nitrile rubber (92.5-4.0%) and maleic anhydride (2.0-2.5%) and by that, as plasticizer, liquid fraction of liptobiolite coal resin with boiling temperature above 230°C and, as extender, talc are used in concentrations 20.0-30.0% and 22.5-35.0%, respectively, while bitumen represents the rest of the mastic.

EFFECT: enabled achieving elevated values of elasticity and strength of mastic and its adhesion to protected material at temperature and fragility characteristics ensuring effective "operation" of mastic under severe climatic conditions.

1 tbl, 6 ex

FIELD: rubber compositions, chemical technology.

SUBSTANCE: invention relates to rubber mixture compositions and methods for their preparing. Preparing a rubber mixture composition involves mixing from 5 to 90 wt.-% of rubber component chosen from butyl rubber, halogenated butyl rubber, stellate butyl rubber, halogenated stellate butyl rubber, isobutylene homopolymer, chloroprene, butadiene-nitrile rubbers, ethylene-propylene-diene triple copolymers, ethylene-propylene copolymers, butadiene styrene rubbers, polybutadiene, polyisoprene, isoolefin-alkylstyrene copolymer, halogenated isoolefin-alkylstyrene copolymer, natural rubber, polypropylene, polyethylene, polyurethane, polyvinyl chloride, silicon rubber, propylene oxide polymer and their mixtures, from 0.01 to 5 wt.-% of amine compound represented by the formula: (R1R2R3)N wherein R1 means either hydrogen atom or hydrocarbyl group comprising from C4 to C30 carbon atoms; R2 means either hydrogen atom or hydrocarbyl group comprising from C1 to C30 carbon atoms, and R3 means either hydrogen atom or hydrocarbyl group comprising from C1 to C30 carbon atoms under condition that at least one radical among R1, R2 and R3 doesn't mean hydrogen atom, from 5 to 90 wt.-% of isoolefin copolymer comprising a link derivatized from halogenmethylstyrene, isoolefin link comprising from 4 to 7 carbon atoms, and copolymer comprises from 0.5 to 20 wt.-% of halogenmethylstyrene links and usual additives. Invention provides preparing the rubber mixture composition possessing the enhanced strength before treatment and enhanced stability against heat aging after vulcanization.

EFFECT: improved preparing method, improved and valuable properties of composition.

51 cl, 4 tbl, 3 ex

Rubber mix // 2309962

FIELD: rubber industry; production of rubber mixes used for manufacture of collar seals for oil equipment.

SUBSTANCE: proposed rubber mix contains the following constituents, mass-% (per 100 parts by mass of rubber): butadiene-nitrile rubber Grade БНКС-40AM and БНКС-40AMH, 80.0; hydrogenated butadiene-nitrile rubber Grade БНКВ, 40-30; Terban, 20.0; sulfur, 3.5; sulfenamide M, 0.50; altax, 0.50; stearic acid, 1.00; colophony, 2.0; dibutoxyethyl adipate, 11.0; white carbon, 5.0; zinc white, 4.0; diafen, 2.0; commercial carbon П-803, 20.0; commercial carbon П-245; modifying agent РУ-Д, 2.0; aramide or polyamide fibers, 10.00.

EFFECT: enhanced tear resistance of vulcanizing agents; increased service life of collar seal; possibility of using collar seals at low temperatures.

3 tbl

FIELD: composite materials.

SUBSTANCE: invention relates to nanocomposite comprising (i) clay; (ii) copolymer constituted by units derived from C4-C7-isomonoolefin, units derived from p-methylstyrene, and units derived from p-halomethylstyrene; or butylrubber constituted by units derived from C4-C7-isoolefin, units derived from multiolefin, and units derived from halogenated multiolefin; and (iii) one or several stratifying additives including amine, said stratifying additive being present in nanocomposite in amount between 0.1 and 20%. Nanocomposite is applicable for manufacturing internal shells for tires and inner tubes for automotives, including trucks and other vehicles for transportation loads and/or passengers.

EFFECT: reduced air permeability of nanocomposite products.

18 cl, 5 tbl

FIELD: polymer materials.

SUBSTANCE: invention relates to elevated-viscosity halogenated elastomers as constituents of thermoplastic composition,. The latter comprises thermoplastic material and at least one isoolefin copolymer including unit derived from halomethylstyrene, which are mixed with at least one hindered amine or phosphine of formula R1R2R3N or R1R2R3P. In a preferred embodiment, R1,R2, andR3 represent lower and higher alkyl groups. Thus obtained ionically bound amine- or phosphine-modified elastomers are suitable for preparing thermoplastic mixed elastomeric compositions.

EFFECT: improved mixing homogeneity due to elevated viscosity of copolymer and formation of finer dispersion of one polymer system in the matrix of another polymer system.

20 cl, 10 tbl, 5 ex

FIELD: rubber industry; chemical industry; production of the vulcanized rubber mixture made on the basis of an acrylate rubber and partially on the hydrogenated butadiene-nitril caoutchoucks.

SUBSTANCE: the invention is pertaining to production of the vulcanized rubber mixture made on the basis of the acrylate rubber and partially on the basis of the hydrogenated butadiene-nitril caoutchoucks, which is used for manufacture of the hardware products operable at the temperatures up to 150°С and having the heightened wear resistance and which may be used in production of the industrial rubber products - the rings, the sleeves gaskets, the drive belts operating in the friction pairs at the heightened temperatures. The vulcanized rubber mixture made on the basis of the acrylate rubber of the heightened wear resistance includes the mineral filler, the engineering carbon, the antioxidant, the plasticizer, the partially hydrogenated butadiene-nitril caoutchouck, the quaternary ammonium base, the metallic stearate, the brimstone, the vulcanization accelerators, zinc oxide, the anti-adhesive agent, the anti-scorching agent. The rubber mixture made on the basis of the acrylate rubber of the heightened wear resistance allows to increase the level of the values of the indexes: the wear resistance, the tensile strength, the frost hardiness, the resistance to the action of the aggressive mediums of the aromatic series.

EFFECT: the invention ensures the increased level of the values of the indexes of the rubber mixture made on the basis of the acrylate rubber of the heightened wear resistance: the wear resistance, the tensile strength, the frost hardiness, the resistance to the action of the aggressive mediums of the aromatic series.

3 cl, 2 tbl

FIELD: rocket fuels.

SUBSTANCE: invention relates to rocket engineering and deals with epoxide molding composition for armoring channeled and channel-free inserted charges of mixed solid propellant with diameter 300-700 mm prepared by filling technique and operated within a large temperature range. Composition comprises 39-42% epoxide dian resin as modifier and plasticizer, 6.48-10.80% m-phenylenediamine as aromatic diamine, and 1.44-3.00% polyethylenepolyamine as aliphatic amine. Aromatic and aliphatic amines are taken at weight ratio 4.5:1.

EFFECT: improved technological, mechanical, and adhesion properties.

2 tbl, 7 ex

FIELD: sealing composition and materials.

SUBSTANCE: invention relates to a method for preparing a composition designated for electric sealing and contacting wave guide tracts used in electronic engineering industry and instrument making. The composition comprises the following ratio of components, mas. p. p.: epoxy diane resin ED-20, 30-40; silver powder of the grade pure, 90-110; polyethylene polyamine of the grade A, 3.5-5.5, and cyclohexanone as a solvent, 40-70. Invention provides enhancing moisture resistance under condition of 98% of moisture at temperature +40°C for 12 days, increasing adhesion and providing impact resistance to temperature effect in the range from -60°C to +85°C.

EFFECT: improved and enhanced properties of composition.

2 tbl, 3 ex

FIELD: polymers, in particular water-resistant epoxy composition for production of coats, filling floors, compounds.

SUBSTANCE: claimed composition contains (mass pts): law molecular epoxydianic oligomer with molecular mass of 400-700 and epoxy number of 11-21 - 100; fluorine-containing epoxy oligomer based on 2,2-bis-(p-oxyphenyl)-hexafluoropropane diepohypropyl ester with molecular mass of 650 and epoxy number of 15 - 5-10; triethylenetetramine as amine curing agent - 13.6. Law molecular epoxydianic oligomer is used in form of 50 mass % solution in mixture of ethylcellosolve with xylene taken in ratio of 1:7. Fluorine-containing epoxy oligomer is used in form of 50 mass % solution in mixture of ethylcellosolve with xylene taken in ratio of 1:7.

EFFECT: coating with increased water resistance.

1 tbl, 7 ex

FIELD: polymer materials.

SUBSTANCE: invention relates to elevated-viscosity thermoplastic halogenated elastomer compositions and to a process for preparing the same. Composition according to invention contains thermoplastic polymer, at least one isoolefin copolymer comprising unit derived from halomethylstyrene, and at least one hindered amine or phosphine compound having the respective structure R1R2 R3N or R1R2R3P wherein R1 is H or C-1-C6-alkyl, R2 is C1-C30-alkyl and R3 is C4-C30-alkyl and further wherein R3 represents alkyl higher than R-1. A process for preparing elevated-viscosity thermoplastic composition consists in mixing thermoplastic polymer, at least one isoolefin copolymer comprising unit derived from halomethylstyrene, and at least one hindered amine or phosphine compound to obtain thermoplastic elastomer compositions, including dynamically cured ones, containing more finely dispersed elastomer.

EFFECT: improved mechanical properties.

4 cl, 10 tbl

FIELD: chemistry.

SUBSTANCE: rubber mix consists of (mass part): styrol-butadiene rubber containing 22-25 mass % of styrol - 60-70, synthetic cis-1,4-polyisoprene rubber - 5-10, divinyl rubber containing 87 to 95% of cis-1.4 units - 5-10, styrol-butadiene rubber containing 58-68% of bound styrol and alpha-methylstyrol - 15-30, vulcanising group (sulfur - 0.5-1.0, tetramethylthiuramdisulfide - 0.5-1.0, N,N'-dithiodimorpholine - 1-2, stearic acid - 0.9-1.5, zinc oxide - 4-5), N-phenyl-N'-isopropyl-n-phenylenediamine - 1-2, polymerised 2,2,4-trimethyl-1,2-dihydrochinoline - 1-2, oil asphalt - 4-5, kaoline - 20-40, carbon black with specific geometrical surface of 20-26 m2/g - 30-50, and fine settled silicon dioxide - 20-25.

EFFECT: higher rigidity and friction rate and longer working life.

3 tbl

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