Composition for heat-protective cover
FIELD: special compositions.
SUBSTANCE: invention relates to compositions used in preparing heat-protective covers based on silicon-containing ceramic hollow microspheres and able to withstand strong temperature drops. Composition for preparing heat-protective cover comprising hollow ceramic microspheres as a filling agent, a polymeric binding agent, technological additive and water involves hollow ceramic microspheres of specific mass 450-750 kg/m3, hardness value by Mohs scale 5.0-6.0 as a filling agent and in the following distribution of particles by sizes, wt.-%: basis diameter 250-350 mcm, 30-62; diameter 5-10 mcm, 15.0-20.0; diameter 10-30 mcm, 5.0-30.0; diameter 30-50 mcm, 5.0-30.0; diameter 60-100 mcm, 8.0-10.0; diameter 100-250 mcm, 5.0-10.0; as a polymeric binding agent the composition comprises latex chosen from group involving: modified acryl acetate latex, 33-38% latex of copolymer of butadiene, acrylonitrile and methacrylic acid, copolymer of styrene and n-butyl acrylate in the ratio 1:1 by mass; as a technological additive the composition comprises a froth breaker chosen from group comprising: silicon froth breakers, tributyl phosphate, polyester derivatives of fatty acids in the following ratio of components, wt.-%: abovementioned microspheres, 18-32; abovementioned froth breaker, 0.01-1.0; abovementioned binding agent, 8.0-12.0, and water - up to 100. Invention provides expanding assortment of compositions for preparing heat-protective covers, enhancing heat-protecting, heat-physical indices of cover with high uniformity and cohesion strength of cover with a basis, expanding region of working temperature from -60°C to +260°C. Invention can be used in filed of building, machine engineering, aviation, railway transport wherein surfaces require conferring heat-protective properties in exploitation of covers under rigid temperature conditions.
EFFECT: improved and valuable technical properties of composition.
The invention relates to compositions for obtaining a heat-shielding coatings based on silicon-containing ceramic hollow microspheres, withstanding sudden temperature drop and can be used in the construction, engineering, aviation, space, railway and other industries.
Known composition to obtain a heat-resistant coating comprising components in the following sootnoshenie, in wt.%: siloxane rubber 30-60; glass microspheres 40-70 and components of the fire retardant composition, in wt.%: siloxane rubber 20,0-79,5; glass microspheres of 20.0-60.0 sec; boron nitride of 0.5 to 20.0 (EN 2039070 C1, 09.07.1995).
Both compositions are used to produce coatings with heat-and-flame-retardant properties. thermal conductivity of the coating to 0.23 W/m°C, the adhesion strength of 5 kg/cm2. Fireproof coating imparts the contents in the structure of boron nitride, however, its use increases the cost of the coating composition, in addition, the boron nitride begins to rapidly oxidized in a dry oxygen at 700-800°With that fire quickly destroys the flame-retardant layer (Gwisoon // acquisition and analysis methods nitrides, Kiev, Naukova Dumka, 1978, s).
Known composition to obtain a heat-resistant coating containing hard polymer, polymer additive, an acid curing agent, glass microsphere water. As a hard polymer is used urea-formaldehyde kfj(M), as well as polymer additives synthetic latex SCS-65 SE, in the following ratio of components, parts by weight of the resin 215,0; latex 1120,0; borosilicate microspheres with a diameter of 40-50 μm of 800.0; acid compound of 7.0, water 75,0 (EN 2220988 C2, 10.01.2004).
A disadvantage of known composition to obtain a heat-resistant coating is sufficiently high conductivity of the coating, which is 0,034-0.038 W/(m·°C), low temperature (not higher than 225° (C) and short time of survival of the composition, which is only 8-10 hours.
Known composition to obtain a heat-resistant coating in the form of a thermo-protective paint, which contains as filler evacuated (hollow) ceramic or refractory microspheres density of 300-400 kg/m3with the following mass distribution of particle size, wt.%: base diameter (30-60 μm) 45-55; diameter (3-10 μm) 15-17; diameter (11-20 µm) 8-10; diameter (21-30 ám) 6-8; diameter (61-70 μm) 9-11; diameter (71-80 μm) 4-6; diameter (91-100 μm) 2-4, the binder contains a resin selected from the group comprising: silicon, polyetheramine, acrylic dispersions, as an additive - reflector - aluminum powder in the following ratio of components, wt.%: the above microspheres 5-70; the pigment is 0.1 to 0.6; reflector - aluminium powder 2,0-5,0; the above binder 30-35 (EN 2245350 C1, 27.01.2005).
Heat-shielding coating obtained by applying a known composition has sufficiently high adhesion to the surface to be protected, homogeneous in composition, but has poor resistance to high temperatures (the operating temperature of the coating does not exceed 250° (C) lack of high thermal and physical characteristics of the coating (thermal conductivity, teplocomplete and heat transfer).
The specified technical solution is selected as the closest equivalent.
The technical result of the invention is the expansion of the range of compositions for obtaining heat-shielding coatings, increase heat and thermophysical characteristics of the coating (reducing its thermal conductivity, teplocomplete and heat transfer), high uniformity and adhesion of the coating to the base, the expansion of operating temperatures from minus 60 to plus 260°C.
The technical result is achieved by the fact that the composition to obtain a heat-resistant coating contains a hollow ceramic microspheres as filler, with a unit weight of 450-750 kg/m3, Mohs hardness of 5.0-6.0, with the following particle distribution of the microspheres in size, wt.%:
|Base diameter||250-350 mcm||30-70|
as it contains a polymeric binder aqueous solution of a latex selected from the group comprising: a modified greeceitaly latex, 33-38%latex of copolymer of butadiene, Acrylonitrile and methacrylic acid, copolymer of styrene and n-butyl acrylate in a ratio of 1:1 by weight, and technological additive as a defoamer selected from the group comprising: silicon defoamers, tributyl phosphate, polyester derivatives of fatty acids, in the following ratio of components, wt.%:
|The above microspheres||18-32|
|The above antifoam||0,01-1,0|
|The above binder||8,0-12,0|
In the proposed composition of the filler used hollow ceramic microspheres from fly ash of thermal power plants in the claimed limit of the ratios and dispersion. The choice of filler conducted on the basis of experimental data, showing its optimal content sufficient to provide the desired viscosity of the composition, density, and strength of the finished coating.
Due to the shape and particle size distribution of the particles, microspheres as bulk material, have a high fluidity, which provides a good end of the microspheres from the hopper into the mixer and the formation of a homogeneous composition.
Areas provide a minimum ratio of surface area to their volume, but due to the dispersed distribution of particles, the most compact laying in the floor. The coefficient of laying - 85-95%. The particle shape of the microspheres and selected distribution of particle dispersion allow you to change the viscosity of the composition depending on its destination, obtaining coatings with high performance.
Hollow particles are microspheres have a shell thickness of the sphere is 10% of the diameter. The composition of the gas phase inside the spheres - CO2- 70%, N2- 30%. The ultimate strength in compression is 150-280 kg/see Microspheres do not lose their properties to temperatures exceeding 980°C. the Temperature of their melting point not lower than 1300°C.
thermal conductivity of the microspheres is 0.08 W/(m·° (C), the density of 450-750 kg/m3the Mohs hardness of 5.0-6.0. Properties and composition of the microspheres presents the table 1.
The choice of polymeric binders: modified acilitator latex (dry basis of the water-dispersion paints, for example, VD-VA-123), or 33-38%latex of copolymer of butadiene, Acrylonitrile and methacrylic acid, or a copolymer of styrene and n-butyl acrylate in a 1:1 ratio by weight (base inks BASF "DL-424" and "ACRONAL 290 D"), proved good wettability of their aqueous solutions with the surface of the ceramic microspheres, resulting in obtaining a uniform distribution of particles in the working composition and high resilience.
For defoaming composition in the process of its preparation is administered as defoamers domestic (silicone, TBP - tributyl phosphate, FOAMASTER 8034 FA)and imported (for example, Lumiten EL - polyester derived fatty acids). As a rule, add enough in the composition is not more than 1.0 wt.%.
Silicone defoamers are efficiency, low toxicity, fire-hazardous, nelituji. The brand used defoamers: Cat®-465 - universal defoamer, Penta®-463 (grades a, B, C), Antifoam 139-282. They are all effective in the production of dispersion and latex paints.
Defoamers allow to increase the productive capacity and performance of the apparatus, to prevent the overflow of valuable products, to reduce losses slave is what time to create the necessary conditions.
The method of preparation of the composition is as follows.
The polymer binder is loaded into the mixer, for example turbulent brand SB-43 or vane type 210, add defoamer, stirred to obtain a homogeneous composition, then enter the parts required number of ceramic hollow microspheres with a particle size of 5-350 μm when the distribution of particles specified in the formula, gently mix on a low speed for 0.5-1 hour to obtain a finished composition. The resulting composition is placed in a container and is used for thermal barrier coatings.
The composition is a homogeneous composition, which does not separate during storage and is designed so that its performance will not be changed for at least one year.
The claimed composition is branded "TEPLOS - Top.
Composition without added pigment is a white suspension. The drying time of the layers at a temperature of 20°not more than 24 hours.
Appearance of the coating is smooth, homogeneous. The adhesion of the coating to the steel not less than 1.0 MPa.
"TEPLOS - Top" can be applied to the surface of metal, plastic, glass, concrete, brick, plaster and other building materials, and equipment aviation and railway industry, battery, speaker, buzzer is s and ducts during operation of objects coated at temperatures from minus 60° To + 260°C.
The surface on which is applied the composition of the heat of composition, must be dry and clean, free of rust and grease.
The color and appearance of the coatings, the drying time is determined on glass plates measuring 90×120 mm when the thickness of the coating layer of 0.4 mm
Adhesion to steel is determined according to GOST 15140-78.
The inventive composition is applied to the surface in various ways, which are used in paint technology: trowel, brush, roller or spray gun in the form of at least one layer of a thickness of 1-1 .5 mm
The thickness of all the coating layers to the claimed composition does not exceed 7 mm and depends on the nature of the surface. So on the inner surface of dwellings enough to put just one layer of a thickness not exceeding 1.5 mm
On the metal surface of the pipe hot water passing under the earth, it is necessary to put the maximum number of layers. So when the total thickness of the coating 6 mm on the steel pipe surface with a temperature of 90°C, surface temperature is reduced to 25-30°C.
After application to the surface of the material or product layer or multiple layers, and after drying, the deposited layers, the composition forms a heat-protective coating of ceramic microspheres and polymeric binder, strongly connected with the base and having a high to operate the operating characteristics. After drying contains 60-80 wt.% ceramic microspheres with a diameter from 5 to 350 μm, uniformly distributed in a polymeric binder, which corresponds to the density of filling of 85-95% and provides high properties of the coating that can withstand temperatures ranging from minus 60 to plus 260°when the total thickness of layers 1 to 7 mm
The essence of the method is illustrated by examples, summarized in table 2, which reflects the compositions, the thickness of the layers and their number, nature, and the temperature of the surface on which is applied in the form of layers, the compositions and properties of the resulting coating.
In example 1 on the surface of the masonry, with the surface temperature and the environment plus 7°With, put part 1 in the form of 3 layers (total thickness 4.5 mm), drying which is carried out at a temperature of 20-25°C. properties of the coating are presented in table 2.
In example 2 on the surface of the steel pipe having a temperature of 150°caused by atmospheric conditions (at a temperature of 20-25°C, normal pressure and humidity) 5 layers of composition 2 and dried at a temperature of pipe surface. After applying thermal barrier coatings temperature decreased from 150 to 50°C.
The decrease in the surface temperature of steel pipe with 90 to 30°With those obtained by use of the composition 3.
From the tabular data, after which the duty to regulate, that the resulting coating has a tensile strength of 3.0-3.5 MPa, thermal conductivity of 0,001-0,003 W/(m·° (C), the heat exchange 5.5 to 6.5 W/(m·° (C) and heat transfer 2-4 W/(m·°).
"TEPLOS - Top" meets the fire safety requirements set out in NPB 244-97 when testing for flammable basis: group Flammability - GS, GOST 30244-94 (normologiya according to SNiP 21-01-97); group Flammability - 1 according to GOST 30402-96 (inflammable posip 21-01-97).
Thus, the proposed structure allows to obtain coatings with unique thermal properties that may find its extensive use in the construction industry, in mechanical engineering, chemical industry, aviation and rail industries, i.e. where you want to make the surfaces of the heat-and fire-resistant properties, the operation of the coatings in harsh temperature conditions.
|The physical properties of the microspheres||The composition of the microspheres, %|
|The density of the material of the walls of the sphere, g/cm3||2,5||Al2O3||25-33|
|Bulk density, fuel 3||0,32-0,37||Fe2O3||1-6|
|Specific gravity, g/cm3||0.45-0.75||CaO||0.2-0.6|
|The Mohs hardness||5-6||MgO||1-2|
|Melting point, °||1300||K2O; Na2O||0.2-4; 0.3-2|
|Surface humidity, %||0,3 maximum||TiO2||0,5-1,0|
The composition to obtain a heat-resistant coating containing hollow ceramic microspheres as a filler, a polymeric binder, technological additive and water, wherein the filler it contains hollow ceramic microspheres with a specific gravity of 450-750 kg/m3, Mohs hardness of 5.0-6.0, with the following distribution of particle size, wt.%:
|The base diameter of 250-350 microns||30-62|
|The diameter of 5-10 microns||15,0-20|
|The diameter of 10-30 microns||5,0-30|
|The diameter of 30-50 μm||5,0-30|
|The diameter of 60-100 microns||8,0-10|
|The diameter of 100-250 microns||5,0-10|
in ka is este polymeric binder contains latex, selected from the group comprising modified greeceitaly latex, 33-38%latex of copolymer of butadiene, Acrylonitrile and methacrylic acid, copolymer of styrene and n-butyl acrylate in a ratio of 1:1 by weight, as a technological additive composition contains a defoamer selected from the group comprising silicone defoamers, tributyl phosphate, polyester derivatives of fatty acids in the following ratio, wt.%:
|The above microspheres||18-32|
|The above antifoam||0,01-1,0|
|The above binder||8,0-12,0|
FIELD: composition for wood protection from ignition.
SUBSTANCE: invention relates to fire-proof composition based on aqueous solution of phosphoric acid and carbamide. Additionally composition contains film forming alcohol solution of tetraethoxysilane with ultrafine powder selected from aluminum and fluoroplast powder in specific component ratio. Also described is method for production of said composition.
EFFECT: composition of high elution strength and effectiveness.
2 cl, 1 tbl, 4 ex
FIELD: manufacture of building materials.
SUBSTANCE: invention, in particular, relates to fireproofing materials based on intercalated graphite compounds and is designed for applying fireproofing coatings of outdoor and indoor surfaces of civilian- and military-destination objects, for treating industrial structures to block propagation of fire due to imparted fireproofing and high heat-insulation properties under high temperature conditions. Fireproofing composition proposed comprises 50% acrylic dispersion as binder, urea-formaldehyde resin, oxidized graphite as oxidant, pentaerythritol and Na-carboxymethylcellulose as carbonizer, titanium dioxide and calcium carbonate as filler, urea as hardener, and water, said 50% acrylic dispersion being based on copolymer of butyl acrylate, methyl methacrylate, and methacrylic acid at ratio 47:52:1 and said filler being in the form of chopped glass thread at specified proportion of constituents.
EFFECT: increased tensile strength and reduced variation in linear dimensions.
FIELD: construction materials industry; chemical industry; other industries; production of the impregnating compositions for the fire-protection and bio-protection of the timber and the timber materials.
SUBSTANCE: the invention is pertaining to the field of protection of the timber and the materials on its basis timber and the timber materials inflammation and the biodeteriorations. The invention presents impregnating composition for the fire-protection and bio-protection of the timber and the materials on its basis containing 24.0-32.0 mass % of the phosphorous acid, 20.0-27.0 mass % of carbamid, 6.0-10.0 mass % of the oxyethylidenediphosphonic acid the rest - water. The composition additionally contains 0.5-1 mass % of the additive reinforcing the fungicidal activity of the impregnating composition, in the capacity of which use the inorganic boron compounds or the ammonium salts and 1.0-10.0 mass % of the additive reinforcing penetrability of the impregnating composition into the timber, in the capacity of which use the monobasic alcohol either bibasic alcohol or the aprotic dipolar solvents. The technical result of the invention is production of the composition, which is stable for prolonged storage and capable at the small costs to ensure the high level of the fire-and-bio protection of the timber and is suitable for application in the conditions of the building sites till the temperature of minus 30°C.
EFFECT: the invention ensures production of the impregnating compositions for the fire-protection and bio-protection of the timber and the timber materials, which is stable for prolonged storage and capable at the small costs to ensure the high level of the fire-and-bio protection of the timber and is suitable for application in the conditions of the building sites till the temperature of minus 30°C.
5 cl, 2 tbl, 3 ex
FIELD: protection of substrate against jet flame or hyperthermal conditions.
SUBSTANCE: proposed system includes two layers of thermal protective compositions: lower layer is made from active fireproof material at thickness of 1 to 25 mm and upper layer is made from ablative fireproof material at thickness of 1 to 25 mm which forms matrix with open cells when it is acted on by flame or another hyperthermal condition, thus admitting the gases from lower layer to surrounding medium; upper layer contains approximately 7 to 40 mass-% of heat-resistant fillers and approximately 5 to 30 mass-% of foaming agent. Provision is made for reinforcing the system with screen or fabric.
EFFECT: enhanced efficiency of protection of substrate under hyperthermal conditions.
54 cl, 3 tbl, 4 ex
FIELD: copolymers meant for usage in polymer binding agents for covers prone to swelling during heating.
SUBSTANCE: copolymer is described for usage in binding agent or as polymer binding agent in covers prone to swelling during heating, including a mixture of Newton copolymer and network copolymer, selected from a group including thixotropic and pseudo-plastic copolymers, while aforementioned Newton and network copolymers consist of links of substituted styrene and substituted acrylate and contain links of at least p-methylstyrene and 2-ethylhexylacrylate, with grammolecule ratio of p-methylstyrene and 2-ethylhexylacrylate ranging from 100/0 to 50/50. Also described is the cover prone to swelling during heating and method for producing the same, which cover includes polymer binding agent, foam-forming substances, carbon-forming substances and other normally used admixtures, featuring aforementioned copolymer as polymer binding agent.
EFFECT: optimized creation of coal and improved isolating properties of cover.
3 cl, 2 tbl, 8 dwg, 4 ex
FIELD: polymer materials as protective coatings.
SUBSTANCE: invention relates to preparing anticorrosion, fire-resistant, and heat-retention composition for use in oil and gas production industry, petrochemical industry, in municipal economy and other areas, where protection of surfaces against corrosion, heat, and inflammation are required as well as to application of composition as protective coating for metal, concrete, and, in particular, for protection of pipelines operated in permafrost regions, under water surface, and at large temperature and pressure gradients inside and outside pipelines. Composition is composed of 5-95% epoxide resin, 3-65% hardener, 5-95% hollow microspheres, and 0-20% auxiliary additives. Hollow microspheres are selected from group consisting of glass hollow microspheres, ceramic hollow microspheres, polymeric microspheres, hollow man-made microspheres and mixtures thereof. Microspheres are dimensioned within a range 10 to 500 μm with loose density between 650 and 50 kg/m3.
EFFECT: improved performance characteristics of coatings.
2 cl, 1 tbl, 6 ex
FIELD: special compositions.
SUBSTANCE: invention relates to compositions used for applying covers based on organosilicon compounds able to swell at high temperatures, among them to compositions used for applying swelling covers for fireproofing wood. Invention describes a composition based on aqueous solution of silicate of the general formula: M2O*xSiO2 *yH2O wherein M means Na, K, Li or ammonium; x = 2.5-3.6; y = 2-5 and containing from 45% to 70% of nonvolatile substances and methyl- or dimethylalkoxy(phenoxy)silanes of the general formula: (CH3)nSi(OR)4-n wherein R means (C1-C4)-alkyl or phenyl; n = 1 and 2 and taken in the amount 0.7-10% of mass of the composition aqueous solution. The composition contains additionally alkylsiliconate of the general formula: MzH(3-z)OSiR1 wherein M means Na, K, Li or ammonium; R1 means -CH3, -C2H5; z = 1-3 and taken in the amount 0.7-5% of mass of the composition aqueous solution; substituted trialkoxysilane of the general formula: A-Si(OR1)3 wherein A means Q-(CH2)3- or CH2=CH-; Q is chosen from the following groups: NH2CONH-, OCN-, -NH2; R1 means -CH, -C2H5 taken in the amount 0.2-6.3% of mass of the composition aqueous solution; water-soluble polyhydric alcohol or carbohydrate comprising three hydroxyl groups in molecule, not less, wherein polyhydric alcohol or carbohydrate is chosen from the following compounds: glycerol, sucrose, fructose, glucose, carboxymethylcellulose or their mixtures, and oxyethylated derivatives of indicated polyols; borates; alkoxypolysiloxanes of the general formula: (RO)n(CH3)3-nSiO[Si(CH3)2O]kSi(CH3)3-n(OR)n wherein R means (C1-C4)-alkyl; n = 1 and 2; k ≥ 0 wherein alkoxysilanes of the general formula: (CH3)nSi(OR)4-n represent a mixture of methyl- and dimethyl-derivatives in their mole ratio from 1:1 to 1:10; R means (C1-C4)-alkyl; ammonia. Proposed composition provides effective fireproofing of wood.
EFFECT: improved and valuable properties of lacquer.
15 cl, 14 tbl, 45 ex
FIELD: paint-and-varnish industry; production of the heat-resistant paints for metallurgy.
SUBSTANCE: the invention is pertaining to field of the paint-and-varnish industry, in particular, to production of the heat-resistant paints capable to withstand the temperatures of hot metal in the steelmaking and rolling shops of metallurgical complexes. The purpose of the invention is to develop the heat-resistant paint with a capability of its application on the metals, in particular, to apply the marks on the hot metal and to withstand the temperatures of 60-300°C. The invention provides the paint ecological purity, reduction of its net cost and expenditures for its manufacture and usage. The solution of the task in view is achieved due to the fact, that the paint contains compounds based on the oxides of metal - the powdery aluminum oxide, silicon-containing substance - the soluble liquid sodium or potassium glass and water.
EFFECT: the invention ensures production of the heat-resistant paint used for applications of the marks on the metals, ensures its ecological purity, reduction of its production net cost and expenditures for its usage.
FIELD: fire-proof foaming coats; protection of cable products against high-temperature effect.
SUBSTANCE: proposed compound contains dispersions of acryl polymers in water, thermo-expanding graphite, magnesium oxide, antimony (III) oxide, borates, phosphates, preserving and biocidal additives. Proposed compound has the following composition, parts by mass: thermo-expanding graphite, 10-30; magnesium oxide, 10-20; antimony (III) oxide, 5-10; borates, 5-10; phosphates, 10-35; dispersions of acryl polymers in water, 40-80; preserving and biocidal additives, 1-3.
EFFECT: enhanced fire resistance, elasticity, water resistance and adhesion of coat to different cable envelopes.
FIELD: production of refractory paints (molded and non-molded) at roasting temperature up to 1550°C; marking articles before and after heat treatment.
SUBSTANCE: proposed dyestuff contains the following components, mass-%: titanium dioxide, 30-75; chromium oxide, 5-50 and cobalt aluminate, 5-40. Components taken at definite ratio (mass-%) make it possible to obtain dyestuff for marking the articles inclusive those working at high temperatures and keeping marks intact during operation at temperature up to 1550°C and at thermo-cycling of marked articles.
EFFECT: enhanced efficiency and reliability.
FIELD: protective articles.
SUBSTANCE: invention relates to producing agents for human individual protection against effect of corrosive media, in particular, the protective cover for mittens and gloves. The composite comprises butadiene nitrile carboxylate latex, 50% aqueous dispersion of vulcanizing group stabilized with disperser, 25% aqueous dispersion of technical conducting carbon stabilized with disperser and a thickening agent. Invention provides preparing article showing anti-static properties, enhanced stability against petroleum, gasoline and aromatic solvents.
EFFECT: improved preparing method with antistatic properties and enhanced stability to oil, gasoline and aromatic solvents.
2 cl, 9 tbl
FIELD: composition for coating of gauntlets and gloves used in chemical, oil and oil processing industries.
SUBSTANCE: claimed composition contains mixture of butadienenitrile carboxylate latex and butadienevinylidenechloride latex in mass ratio from 75:25 to 97:3; 50 % aqueous dispersion of curing sulfur-containing group; zinc oxide and zinc salt of dialkyldithiocarbamine acid, stabilized with dispersant; 25 % aqueous dispersion of carbon black, stabilized with dispersant.
EFFECT: protective coating of decreased cost and improved resistance to gasoline and aromatic hydrocarbons affects.
4 tbl, 1 dwg
FIELD: coating materials.
SUBSTANCE: claimed mastic comprises binder containing four kind of latex: butylacrylate-styrene-methacrylic acid terpolymer, 2-ethyloxihydrate-styrene-methacrylic acid terpolymer, butylacrylate-acrylonitrile-methacrylic acid terpolymer, and styrene-methacrylic acid copolymer; plasticizer (mixture of kaoline clay with filler, selected from group containing vollastonite, perlite, diatomaceous earth, dispersion agent, and frame retardant) as a filler. Materials coated with mastic of present invention provide high effective vibration absorbing in wide range of temperatures (from -40 to +900C) and are useful in manufacturing of metal construction, bodies of transportation, ships, engines, etc.
EFFECT: mastic for wide class of articles with increased vibration absorbing; coatings with improved sanitary quality.
6 cl, 2 tbl
FIELD: manufacture of building materials; water-proof coats; water-proof shields for fields of burial of waste; sludge barns and pits.
SUBSTANCE: proposed water-proof coat contains oil production waste - asphalt-resin-paraffin deposits and polymer in form of poly-formaldehyde at the following ratio of components, mass-%: asphalt-resin-paraffin deposit, 60-80; waste poly-formaldehyde,20-40.
EFFECT: enhanced homogeneity of fine-grained compound; enhanced strength; low water absorption and seepage coefficient; improved deformation properties; utilization of waste.
FIELD: building industry and materials.
SUBSTANCE: invention relates to compositions used for applying of cover layers in making waterproofing of roofing, internal and external surfaces of building constructions and buildings. The composition comprises a thickening agent as sodium water glass and froth breaker as tributyl phosphate, latex of triple copolymer of vinyl chloride, vinylidene chloride and maleic acid and water. Invention provides anticorrosive stability of ferroconcrete constructions in exploitation based on improvement of mechanical and waterproofing properties of the cover.
EFFECT: improved technical properties of composition.
FIELD: building industry and materials.
SUBSTANCE: invention relates to compositions used for applying of cover layers in making internal and external surfaces of building constructions and buildings. The composition comprises a thickening agent as carboxymethylcellulose sodium and froth breaker as tributyl phosphate, latex of triple copolymer of vinyl chloride, vinylidene chloride and maleic acid and water. Invention provides anticorrosive stability of ferroconcrete constructions in exploitation.
EFFECT: improved and valuable technical properties of composition.
1 tbl, 1 ex