Binder

 

(57) Abstract:

The invention relates to road-building materials, and more specifically relates to a binder, and can be used in road construction, as well as, for example, in the construction of roofs, waterproofing and as a sealing material. Binder contains 30,0-is 97.9 wt.% bitumen, 2.0 to 40.0 wt.% plasticizer and 0.1-30.0 wt.% the polymer product based block copolymer of the type a-B-a and/or the block copolymer (a-B)nX, where a is vinylaromatic monomer having a molecular weight of from 8000 to 16000, conjugated diene polymer block having a molecular weight of 30,000 to 70,000, X is the remainder of combining agent, n is an integer equal to from 2 to 4, and malaysiaand polybutadiene, comprising from 10 to 24 wt.% maleic anhydride and having a molecular weight of from 1200 to 4000, in which the mass ratio of these block copolymer and named malaysiaand polybutadiene is 100:(10-20). Created binding material with high adhesion to all mineral materials, including mineral materials actually used in the road construction, having the physical and mechanical properties, including fracture toughness, teplostoykost at the level of viscosity of bitumen without uneconomical increase in the content of the polymer. 4 C.p. f-crystals.

The invention relates to road-building materials, and more specifically the invention relates to a binder, and can be used in road construction, as well as, for example, in the construction of roofs, waterproofing and as a sealing material.

Bitumen is traditionally the main binding material used in the construction of industrial and civil structures. To improve the physical-mechanical properties of the bitumen, in particular persistent improvement of their low-temperature and high-temperature characteristics of the bitumen used in combination with modifying additives, such as high-molecular compounds, providing the ability of the bitumen to high-elastic deformation.

Known, for example, a bituminous composition containing in an amount of bitumen 70,0-97,0 wt.parts ethylene-propylene(diene)new rubber in number to 0.480-11,760 wt.parts, the polyolefin in the number 0,012-2.4 wt.parts plasticizer in the amount of 1.8-of 24.0 wt.parts (EN, 2120951, IPC From 08 To 5/01, published. 27.10.98). This composition can be used for making road surfaces having high stretchability and elasticity.

Also known mixture of bitumen and the 00. This mixture contains as thermoplastic polymer is a block copolymer with a radial structure of the General formula X(a-b)mwhere a is a monomer vinylaromatic series, In - diene monomer, X is the residue of a binding agent, m is a number from 3 to 5, with the weight ratio of bitumen:a copolymer of 80:20-95:5. This mixture can be used as a binder for road conglomerates with high performance waterproof membranes and bitumen emulsions, also called mixture suitable for use as a binder in the paving.

As a prototype we have chosen bituminous material containing bitumen in an amount of 80-99 wt.parts, polybutadiene or the best choice block copolymer in an amount of 1-20 wt.parts and sulfur or sulfur-containing additive in an amount of 0.01 to 0.15 wt.parts (EN, 2011666, MKI 08 L 95/00, publ. 07.12.90).

The above composition, as most of the currently known are characterized by poor adhesion to mineral materials such as acidic and basic rocks are used, in particular, in the composition of the asphalt. When attempting to improve the adhesion properties of the known binders arise as technologica difficulties.

The basis for the claimed of the invention is to create a binder with along with high heat resistance, deformability, crack resistance and simultaneously high adhesion to mineral materials such as acidic and basic rocks.

This problem is solved when creating a binder on the basis of bitumen and polymer components, which according to the invention as a polymer component contains at least one block copolymer selected from the group comprising the block copolymer of the type a-B-a and the block copolymer (a - B)nX, where a is vinylaromatic monomer having a molecular weight of from 8000 to 16000, conjugated diene polymer block having a molecular weight of 30,000 to 70,000,

X is the remainder of combining agent

n is an integer equal to from 2 to 4,

and malaysiaand polybutadiene containing from 10 to 24 wt.% maleic anhydride having a molecular weight of from 1200 to 4000, while the mass ratio of these block copolymer and malaysiaand polybutadiene in the polymer component is 100:(10-20), and the binder contains the named components in the following amounts, wt.%:

The polymer component is 0.1-30,0

Bitumen is a row with the required terms and conditions of its operation heat resistance, cracking resistance, flexibility, resistance to multiple dynamic effects, and the desired adhesion to the surface of mineral materials of any nature, i.e. binder, suitable for road construction works - device surface treatments, the production of high quality sealants and insulation, the coating weight for the roofs.

According to the invention it is expedient to binder additionally contains a plasticizer, with named components are contained in the following amount, wt.%:

The polymer component is 0.1-30,0

The plasticizer 2,0-40,0

Bitumen component Else

This problem can be solved when creating a binder on the basis of bitumen and polymer components, which according to the invention as a polymer component contains malaysiaand polybutadiene containing from 10 to 24 wt.% maleic anhydride having a molecular weight of from 1200 to 4000, with named components are contained in the following amount, wt.%:

Malaysiaand polybutadiene 0,1-2,0

Bitumen component Else

Thanks to the invention created a binder with datacentralen materials of any nature.

This problem can be solved when creating a binder on the basis of bitumen and polymer components, which according to the invention as a polymer component contains malaysiaand polybutadiene containing from 10 to 24 wt.% maleic anhydride having a molecular weight of from 1200 to 4000, and at least one thermoplastic elastomer selected from the group comprising block copolymers of butadiene and styrene type SBS block copolymers of isoprene and styrene type SYSTEM, and further comprises a plasticizer, with named components are contained in the following amount, wt.%:

Malaysiaand polybutadiene 0,1-2,0

At least one

thermoplastic elastomer of 0.1-30,0

The plasticizer 2,0-40,0

Bitumen component Else

Thanks to the invention results from the binding material, possessing along with the required terms and conditions of its operation, heat resistance, crack resistance, flexibility, resistance to multiple dynamic effects, and also reliable adhesion to the surface of mineral materials of any nature.

Further objectives and advantages of the invention will become apparent from the subsequent detailed description of binder and conchy component and a polymer component. Bitumen component can be natural bitumen or derived from mineral oils. Along with various mixtures of bituminous materials as bitumen component, you can apply petroleum pitch obtained in the process of cracking, and coal tar. Suitable bituminous component can be selected from among a distillation of bitumen, bitumen straight race, bitumen precipitation, such as propane bitumen, blown bitumen, for example catalytically blown asphalt, aromatic distillates pickup oil or mixtures thereof. Suitable compounds are aromatic extracts from the basis of a lubricant and a mixture of aromatic extract and a vacuum residue. Next can be called a mixture of one or more of these bitumens with fillers-thinners, such as oil extracts, for example, aromatic extracts, distillates or residues, or with oils. In accordance with the invention suitable bituminous component can be bitumens which have a penetration in the range from 50 to 250 DMM at 25 ° C, so it is possible to use a completely solid bitumen with a penetration of 60 to 70 DMM.

As an example, as the most preferred domestic products mo is>agushi material offered in the first object of the present invention contains a polymer component malaysiaand polybutadiene containing from 10 to 24 wt.% maleic anhydride having a molecular weight of from 1200 to 4000, and a block copolymer, a linear structure such As a-B-a and/or block copolymer of branched structures of type (A-B)nX, where a is vinylaromatic monomer, mainly having a molecular weight of from 8000 to 16000, conjugated diene polymer block mainly having a molecular weight of 30,000 to 70,000, X is the remainder of combining agent, n is an integer equal to from 2 to 4.

Basically the content vinylaromatic monomer to diene polymer block, paired with vinylaromatic hydrocarbons, ranging from 26 to 35 wt.%.

Examples vinylaromatic monomers are styrene, methylsterol-methylsterol, para-methylsterol, meta-methylsterol, ortho-methylsterol, para-tert.butalbiral, dimethylstyrene, vinylnaphthalene and mixtures thereof, and diene polymer block may be selected among, for example, butadiene, isoprene, piperylene and mixtures thereof.

Of these compounds, preferred are styrene and butadiene or isoprene or mixtures thereof. Was ustanovlenytakie blocks and, in fact, pure polybutadiene or branch, Rubezhnoe, Ukraine blocks.

Coupled with vinylaromatic diene monomer block copolymer is industrially available product, for example butadiene-styrene thermoplastic elastomer produced according to TU 38.103267-80, butadiene--methylstyrene block copolymer produced according to TU 38.103585-85, isoprene-styrene block copolymer produced according to TU 38.103392-83, piperidin-styrene block copolymer produced according to TU 38.40358-87. In addition, these block copolymers can be synthesized, for example, according to the methods described in patent SU 1613448, 1661183.

When there was a mix called block copolymers, preferably 50/50 in this mixture.

In accordance with the invention, the mass ratio of these block copolymer and malaysiaand polybutadiene in the polymer component of the inventive binder is 100:(10-20), the content of polymer component of the composition in the binder material is from 0.1 to 30.0 wt.%.

The bitumen content of the named component in the binder material is 70,0 to 99.9 wt.%.

According to the invention is useful to binder additionally contains such a component as a plasticizer, which is used as an industrial oil, and the full extract selective treatment MO-6 on THE other 38.1011217-89.

The plasticizer makes these polymers greater compatibility with bitumen component and provides uniformity of binder, as well as its toughness.

The content of the plasticizer in the binder material is preferably from 2.0 to 40.0 wt.%, while the inventive binder contains a polymer component of the above composition in an amount of from 0.1 to 30.0 wt.%. The content of the above bitumen component is from 30.0 to 97.9 wt.%.

Thanks to the invention of the inventive binder containing the listed components in the specified ratio, has, along with the required terms and conditions of operation of heat resistance, crack resistance, flexibility, resistance to multiple dynamic effects, also resistant to ageing and provides high adhesion to the surface of mineral materials of any nature and good adhesion to all mineral materials (excellent traction for marble and Wolski sand, and gabbrodiorite), thus the road sector receives universal binder for all operating conditions of ferrous materials on roads, bridges and airfields, to produce high-quality hermeticity binder, containing bitumen component described above, and as a polymer component containing malaysiaand polybutadiene, which contains from 10 to 24 wt.% maleic anhydride and has a molecular weight of from 1200 to 4000.

In accordance with this second object binder contains malaysiaand polybutadiene in an amount of from 0.1 to 2.0 wt.%, and bitumen component contains from 98,0 to 99.9 wt.%.

Studies have shown that the presence of the bitumen component of low molecular weight malaysiaand polybutadiene, taken in an amount from 0.1 to 2.0 wt.%, provides a significant improvement in the adhesion of the binder to the mineral materials such as acidic and basic rocks, i.e. to gabbrodiorite, granite, Sychevsky and wolska sand, marble.

The third object of the invention is a binder containing bitumen component, as described above, a plasticizer, similar to those described above, and as the polymer component containing the product, including malaysiaand polybutadiene containing from 10 to 24 wt.% maleic anhydride having a molecular weight of from 1200 to 4000, and at least one thermo is opena and styrene type SYSTEM.

In accordance with a third object of protection of the inventive binder contains malaysiaand polybutadiene in an amount of from 0.1 to 2.0 wt.%, at least one specified thermoplastic elastomer contains from 0.1 to 30.0 wt.%, the plasticizer contains a number from 2.0 to 40.0 wt.%, bitumen component contains from 28.0 to of 97.8 wt.%.

Block copolymers of butadiene and styrene type SBS (TU 38.103267-80) and block copolymers of isoprene and styrene type SYSTEM (THE 38.103392-83) is produced in the process of homogeneous catalytic polymerization in the presence of utility or other organolithium compounds. The styrene content in the above thermoplastic elastomers is 15-60%; the optimum content of styrene in butadiene-styrene block-copolymer - 28,0-40,0%, and in isoprene-styrene block-copolymer - 15,0-40,0%. The molecular weight of the aforementioned thermoplastic elastomers is 50000-300000.

These thermoplastic elastomers are produced by industrial products, for example, block copolymers of the type SBS are produced under the brand names of Finopen 502 and Finopen 411 firm “Petrofina”, Kraton D-1101, Kraton D-1184, Kraton D-1186 company “shell” European salt 161 firm Aniken, Kalpen 411 firm “Repsol”, as well as the domestic product mark the future invention of low-molecular malaysiaand polybutadiene stabilizes the properties of the binder. It was also determined that the presence of low-molecular malaysiaand polybutadiene in bitumen component contributes to a stronger structuring of binder material that promotes the formation of new particles of the dispersed phase. Transformation patterns knitting material provides a significant improvement in its adhesion to mineral materials such as acidic and basic rocks, i.e. to gabbrodiorite, granite, Sychevsky and wolska sand, marble.

The effect of low molecular weight malaysiaand polybutadiene offered as an indispensable component of the polymer component of any security object of the present invention, we defined the set of standard indicators properties and clutch before heating and after heating (with aging) at temperatures of 160-180C. The set of standard parameters allows to evaluate the basic performance characteristics of the inventive binder - resistance, deformability, crack resistance, adhesion. It was experimentally determined the effectiveness of the presence of low-molecular malaysiaand polybutadiene on the traction characteristics of the inventive binder with atalanydijas and Sychevsky sand). The adhesion was evaluated in accordance with the standard method according to GOST 11508-74.

The results of tests of samples of the inventive binder based on block copolymers of the type SBS and/or type of SYSTEM, especially based on block copolymers of linear structures of type a-B-a and/or block copolymers of branched structures of type (A-B)nX and malaysiaand polybutadiene draws attention to the fact that all samples of both the original and after storage at 160S for 5 and 8 hours maintain excellent adhesion to mineral materials acidic and basic rocks as a reference, and actually used in road construction.

The inventive binder of any of the above compositions are obtained by mixing at a temperature of 80-160S polymer component with the plasticizer and the subsequent introduction formed in the mixture with vigorous stirring bitumen component.

The following examples in no way limit the scope of protection of the present invention, and are presented only as illustrations.

Example 1

Binder containing 0,091 wt.% butadiene-styrene block copolymer, a linear structure With a-B-C (moleculardynamics malaysiaand polybutadiene content of bound maleic anhydride 10 wt.% and molecular weight of 1200, to 99.9 wt.% bitumen grade BND 40/60. A sample of the specified binder material is subjected to standard tests, receive the following benefits: softening point (ring and ball) - S, embrittlement temperature on Fraas minus 13C, flash - S, elasticity at 25 ° C 26%, the elasticity at 0C 21%, the adhesion to the marble - 5 points, traction sand Volsky - 5 points, coupling with gabbrodiorite - 5 points, coupling with granite - 5 points, traction sand Sychevsky - 5 points.

Example 2

Binder containing 26,0 wt.% isoprene-styrene block copolymer branched structure (C-I)4-Si (molecular weight block vinylaromatic monomer - 12000, molecular weight conjugated diene - 30000) and 4.0 wt.% low-molecular malaysiaand polybutadiene having a molecular weight of 2300, with the content of the linked maleic anhydride 17 wt.%, and 70,0 wt.% bitumen grade BND 200/300. A sample of the specified binder material is subjected to standard tests, receive the following benefits: softening point (ring and ball) - S, embrittlement temperature on Fraas - 45C, flash - S, elasticity at 25 ° C 96%, elasticity at 0C 94%, the adhesion to the marble points traction sand Sychevsky - 5 points.

Example 3

Binder containing 0,083 wt.% piperidin-butadiene-styrene block copolymer branched structures [P-(B-P)]3P (molecular weight block vinylaromatic monomer - 12000, molecular weight conjugated diene - 30000) and 0.017 wt.% low-molecular malaysiaand polybutadiene having a molecular weight of 2650, with the content of the linked maleic anhydride 17 wt.%, and to 59.9 wt.% bitumen grade BND 40/60 and 40.0 wt.% industrial oils AND brand-40A. A sample of the specified binder material is subjected to standard tests, receive the following benefits: softening temperature (ring and ball - 35S, embrittlement temperature on Fraas minus 59S, flash - S, elasticity at 25 ° C 27%, the elasticity at 0C 22%, the adhesion to the marble - 5 points, traction sand Volsky - 5 points, coupling with gabbrodiorite - 5 points, coupling with granite - 5 points, traction sand Sychevsky - 5 points.

Example 4

Binder containing 2.0 wt.% low-molecular malaysiaand polybutadiene content of bound maleic anhydride 10 wt.% and molecular weight of 1200 and 98,0 wt.% bitumen brand ATI: softening point (ring and ball) - S, embrittlement temperature on Fraas - 18C, flash - S, coupling with marble - 5 points, traction sand Volsky - 5 points, coupling with gabbrodiorite - 5 points, coupling with granite - 5 points, traction sand Sychevsky - 5 points.

Example 5

Binder containing 0.1 wt.% low-molecular malaysiaand polybutadiene having a molecular weight of 2000, with the content of the linked maleic anhydride 24 wt.%, to 99.9 wt.% bitumen grade BND 60/90. A sample of the specified binder material is subjected to standard tests, receive the following benefits: softening point (ring and ball) - S, embrittlement temperature on Fraas - 18C, flash - S, coupling with marble - 5 points, traction sand Volsky - 5 points, coupling with gabbrodiorite - 5 points, coupling with granite - 5 points, traction sand Sychevsky - 5 points.

Example 6

Binder containing 30.0 wt.% the block copolymer of isoprene and styrene brand EAST 3-01 and 1.0 wt.% low-molecular malaysiaand polybutadiene content of bound maleic anhydride 10 wt.% and molecular weight of 1200, to 25.0 wt.% industrial oils AND brand-40A and 44.0 wt.% bitumen marks the tats: the softening temperature (ring and ball) - 115S, embrittlement temperature on Fraas minus S, flash - 232C, elasticity at 25 ° C, 98%, the elasticity at 0C 96%, the adhesion to the marble - 5 points, traction sand Volsky - 5 points, coupling with gabbrodiorite - 5 points, coupling with granite - 5 points, traction sand Sychevsky - 5 points.

Example 7

Binder, containing 27.0 wt.% the block copolymer of butadiene and styrene brand DST-30-01 and 0.1 wt.% low-molecular malaysiaand polybutadiene content of bound maleic anhydride 10 wt.% and molecular weight of 1200, 2.0 wt.% oil industrial brand AND 40A and 70.9 wt.% bitumen grade BND 60/90. A sample of the specified binder material is subjected to standard tests, receive the following benefits: softening point (ring and ball) - S, embrittlement temperature on Fraas minus 17C, flash - S, elasticity at 25 ° C 86%, the elasticity at 0C 81%, the adhesion to the marble - 5 points, traction sand Volsky - 5 points, coupling with gabbrodiorite - 5 points, coupling with granite - 5 points, traction sand Sychevsky - 5 points.

Example 8

Binder containing 0.1 wt.% the block copolymer of butadiene and styrene brand Innopran 502 and 2.0 wt.% ciscomainimage anhydride 17 wt.%, 40.0 wt.% oil industrial brand AND 40A and 57.9 wt.% bitumen grade BND 40/60. A sample of the specified binder material is subjected to standard tests, receive the following benefits: softening point (ring and ball) - 36C, embrittlement temperature on Fraas minus S, flash - S, elasticity at 25 ° C 26%, the elasticity at 0C 20%, the adhesion to the marble - 5 points, traction sand Volsky - 5 points, coupling with gabbrodiorite - 5 points, coupling with granite - 5 points, traction sand Sychevsky - 5 points.

1. Binder containing bitumen and polymer component comprising a diene polymer block and malaysiaand polybutadiene, wherein the material further comprises a plasticizer, and as a polymer component contains a product based on the at least one block copolymer selected from the group comprising the block copolymer of the type a-B-a and the block copolymer (a-B)nX, where a is vinylaromatic monomer having a molecular weight of from 8000 to 16000; conjugated diene polymer block having a molecular weight of 30,000 to 70,000; X is a residue which combines agent; n is an integer equal to from 2 to 4, and malaysiaand polybutadiene comprising from 10 cell block copolymer and named malaysiaand polybutadiene is 100:(10 to 20) this binder contains the named components in the following amounts, wt.%:

The polymer component is 0.1-30,0

The plasticizer 2,0-40,0

Bitumen Else

2. Binder under item 1, characterized in that it contains plasticizer industrial oil.

3. Binder under item 1, characterized in that as the polymer component, it contains the product, including butadiene-styrene block copolymer, a linear structure With a-B-C, in which the molecular weight of the block vinylaromatic monomer is 8000, the molecular weight of the conjugated diene is 40,000, and low-molecular malaysiaand polybutadiene content of bound maleic anhydride 10 wt.% and molecular weight of 1200, taken in the mass ratio 100:10, respectively.

4. Binder under item 1, characterized in that as the polymer component, it contains the product, including isoprene-styrene block copolymer branched structure (C-I)4-Si, in which the molecular weight of the block vinylaromatic monomer is 12,000, and the molecular weight of the conjugated diene is 30000, and low-molecular malaysiaand polybutadiene with the 15,4 respectively.

5. Binder under item 1, characterized in that as the polymer component, it contains the product, including piperidin-butadiene-styrene block copolymer branched structures [P-(B-P)]3R, in which the molecular weight of the block vinylaromatic monomer is 12,000, and the molecular weight of the conjugated diene is 30000, and low-molecular malaysiaand polybutadiene content of bound maleic anhydride 17 wt.% and molecular weight of 2650, taken in the mass ratio 100:2, respectively.

 

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3 tbl

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