Rubber mixture based on ethylene propylene diene rubber

FIELD: chemistry.

SUBSTANCE: rubber mixture based on ethylene propylene diene rubber SKEPT-40 contains the following, pts. wt: SKEPT-40 100, sulphur 2, zinc oxide 5, stearic acid 1, technical carbon P-234 100, tetramethylthiuram disulphide 1.5, mercaptobenzthiazole 0.5, modifier 2. The modifier is preferably obtained from reacting epoxy diane resin ED-20, epichlorohydrin and aniline in weight ratio 4:1:2.5, respectively, at temperature 150C.

EFFECT: invention increases rubber adhesion when gluing with chloroprene adhesives 88CA and 88H, improved physical and mechanical properties.

3 tbl, 1 ex

 

The invention relates to the rubber industry, in particular to the development of a rubber mixture based on ethylene-propylene rubber, rubber which is characterized by increased adhesion.

Known rubber mixture comprising ethylenepropylene rubber, a filler, a plasticizer and an adhesive additive, which uses thermal decomposition of the ethylene-propylene or ethylene-propylene-diene rubber (USSR Author's certificate No. 765307, CL C08L 23/16; publ. 23.09.80).

However, this compound has good adhesion to glass.

Known vulcanizate rubber compound based on unsaturated rubber (Sept)containing adhesive additive - ORGANOMETALLIC compound of the formula (organic ligand)-Nickel (anion) (Patent No. 572207, CL C08L 9/00; publ. 05.09.77).

However, this rubber compound is designed for fastening to metal in raw form and subsequent vulcanization.

Known rubber mixture based on ethylene-propylene rubber, comprising a vulcanization activator, organic peroxide, a filler and oligodendrocitarian, which further comprises methylphenyldichlorosilane (USSR Author's certificate No. 711066, CL C08L 23/16; publ. 25.01.80).

However, this rubber compound is designed for fastening to metal in raw form with the settlement of etousa vulcanization and additional greasing glue "Leikonat".

Known vulcanicola rubber mixture based on ethylene-propylene copolymer with hydroxyl groups, comprising vulcanizing agent and a vulcanization catalyst as a curing agent contains epoxy resin and an anhydride of dicarboxylic acid, as catalyst contains dialkylanilines compound of tin or tertiary amine (USSR Author's certificate No. 798136, CL C08L 23/16; publ. 23.01.81).

However, this rubber after vulcanization has a low adhesion performance when attaching the rubber to the metal.

Known rubber mixture based on ethylene-propylene-diene rubber, Sept-30, including sulfur, tetramethylthiuramdisulphide, mercaptobenzothiazole, zinc oxide, stearic acid, and carbon black PM-75 (Koshelev FF and other General technology of rubber. M.: Chemistry, - 1978, s).

However, this rubber after vulcanization has a low adhesion performance when attaching rubber to metal (gained strength under uniform separation does not exceed 0.9 MPa).

The closest is the rubber mixture based on ethylene-propylene-diene rubber stamps Sept-40, including sulfur, zinc oxide, stearic acid, tetramethylthiuramdisulphide, mercaptobenzthiazole and the filler is carbon black, characterized in that the filler messageref carbon black P-514 and an additional modifier, pre resulting from the interaction at 150C 1,66-3,34 parts by weight of epoxy Dianova resin ED-20 and 0,83-1,67 parts by weight of distillation waste of aniline with aniline content 15-18 parts by weight of a mass ratio of 2:1 (Patent No. 2307850, CL C08L 23/16; publ. 10.10.07).

However, this rubber after vulcanization has a low adhesion when bonding rubber to each other (the resulting shear strength does not exceed 1.15 MPa).

Task: development of rubber mixtures based on ethylenepropylene rubber, which is characterized by increased adhesion when bonding.

The technical result is the development of a rubber mixture based on ethylenepropylene rubber, which is characterized by increased adhesion when bonding using chloroprene adhesives brands SA and NT, improved physical and mechanical properties.

The technical result is achieved by the fact that the rubber mixture based on ethylenepropylene rubber stamps Sept-40, including sulfur, zinc oxide, stearic acid, tetramethylthiuramdisulphide, mercaptobenzthiazole and the filler is carbon black, and as filler mixture contains carbon black brand U-234, and an additional modifier, previously obtained as a result of interaction at 150C EP kidney Dianova resin ED-20, epichlorhydrin and aniline in a mass ratio of 4:1:2,5, respectively, in the following ratio of components, parts by weight: ethylenepropylene rubber stamps Sept-40 -100,0, sulfur - 2,0, zinc oxide - 5,0, stearic acid - 1,0, tetramethylthiuramdisulphide - 1,5, mercaptobenzthiazole - 0,5, carbon black P-234 - 100,0, modifier of 2.0.

Ethylenepropylene rubber, SKEPT-40 (TU 38.103252-92).

Sulfur - vulcanizing agent (GOST 127.4-93).

Zinc oxide as an activator of a vulcanization accelerator (GOST 202-84).

Stearic acid - a vulcanization activator (GOST 6484-96).

Carbon black P-234 - filler (GOST 7885-86).

Tetramethylthiuramdisulphide (thiuram D) - of a vulcanization accelerator (GOST 740-76).

Mercaptobenzthiazole (captax) of a vulcanization accelerator (THE 113-00-05761631-23-91).

It is established that the reason for increasing the adhesion performance of the vulcanizates is the increase in the content of polar functional groups by introducing into the rubber compound of the proposed modifier.

When used as a modifier of epoxy Dianova resin ED-20, epichlorohydrin and aniline in a mass ratio of 4:1:2.5 to increase the adhesion and physical-mechanical properties of vulcanizates based on the proposed rubber compound. When changing the component ratio of the modifier, it becomes viscous, which makes it difficult introduction to rez the new mixture, this reduces the adhesive properties of vulcanizates based rubber compound.

Modifier receive a direct interaction epoxy Dianova resin ED-20, epichlorohydrin and aniline in a mass ratio of 4:1:2,5, at 150C for 3 hours. The modifier is a fragile transparent granules of irregular shape Golden brown.

An example of the preparation of the rubber mixture.

The rubber mixture (a mixture of ethylene-propylene-diene rubber, SKEPT-40, sulfur, zinc oxide, stearic acid, carbon black P-234, tetramethylthiuramdisuphide, mercaptobenzthiazole and the specified modifier) to prepare a roll mill at a temperature of rolls 65-70C.

The duration of mixing for 25 minutes. Then carry out the vulcanization of the rubber mixture at a temperature of 160C for 30 minutes.

Get the rubber mixture, the composition of which is given in table 1.

Table 2 shows the physico-mechanical properties of vulcanizates based on the proposed rubber mixture and of the prototype.

Physico-mechanical properties - elongation, conditional tensile strength is determined in accordance with GOST 270-75, hardness shore a (GOST 263-75), resistance to tear (GOST 262-79).

We offer the vulcanizates were tested for adhesive strength under shear achieved through keeping under load of 2 kg, with rooms is based temperature (20C) within 24 hours.

Technology pasting the following samples. Disposable adhesive to the prepared surface, drying the adhesive film at room temperature (20C) for 1-2 minutes, then made a tight pressing of the bonding surfaces.

Adhesion shear was determined on a tensile testing machine MPC-250 (GOST 16971-71).

Table 3 shows strength properties of vulcanizates based on the proposed rubber compound and the prototype made by bonding them with each other chloroprene adhesives brands NT and SA. The data presented in table 3, which shows that best results are obtained using the proposed rubber compound. Thus, the shear strength for bonding vulcanized rubber prototype glue SA is to 1.14 MPa, and for bonding vulcanized rubber on the proposed recipe is 2.0 MPa.

Sulfur
Table 1
The components of the mixtureThe content of the mixture components in the compositions, parts by weight
The placeholderThe proposed composition
Ethylenepropylene rubber, SKEPT-40100,0100,0
2,02,0
Zinc oxide5,05,0
Stearic acid1,01,0
Carbon black P-234100,0100,0
Tetramethylthiuramdisulphide1,51,5
Mercaptobenzthiazole0,50,5
The default modifier placeholder2,0-
Modifier-2,0

Table 2
The results of the tests of songs
IndicesThe placeholderThe proposed composition
Conventional strength, MPaof 17.020,0
Elongation, %140160
Hardness, units shore a9195
Tear resistance, kgf/cm4356

Table 3
Brand glueThe indicator for the composition
The placeholderThe proposed composition
The shear strength, MPa
NT1,151,9
SA1,142,0

The stated number of modifier - 2,0 due to the fact that when you increase or decrease the specified dosage adhesive strength for bonding vulcanizates with each other and physico-mechanical properties are reduced, therefore, it is optimal.

Technical and economic effect, resulting from the application of the rubber mixture based on the ethylene-propylene-diene rubber, is that its application can significantly improve the adhesion of the articles of vulcanized rubber based on ethylene-propylene-diene rubber, to improve the physico-mechanical properties of vulcanizates.

The rubber mixture based on ethylene-propylene-diene rubber stamps Sept-40, including sulfur, zinc oxide, stearic acid, tetramethylthiuramdisulphide, mercaptobenzthiazole and the filler is carbon black, characterized in that the filler mixture contains carbon black P-234 and an additional modifier, previously obtained as a result of interaction at 150C epoxy Dianova resin ED-20, epichlorohydrin and aniline in a mass ratio of 4:1:2,5, respectively, in the following ratio of components, parts by weight:

ethylenepropylene rubber stamps Sept-40100
sulfur2
zinc oxide5
stearic acid1
carbon black P-234100
tetramethylthiuramdisulphide1,5
mercaptobenzthiazole0,5
modifier2



 

Same patents:

FIELD: chemistry.

SUBSTANCE: composition contains a homogeneous mixture consisting of at least one bromine-functionalised epoxy resin, at least one epoxy curing agent and at least one pigment, filler and/or coating additive. Content of bromine in the bromine-functionalised epoxy resin is equal to 5-60%. The composition also contains alkanol amine and at least one zinc borate compound. Alkanol amine is selected from a group consisting of diethanol amine and tris(hydroxymethyl)aminomethane. The method of preparing the composition involves mixing components, heating to melting point of the mixture, extrusion of the molten mixture, cooling, crushing and grinding to powder. The composition provides a coating with high glass transition temperature and acceptable flexibility when depositing the coating onto a metallic or plastic base, in particular metallic and plastic pipes.

EFFECT: coatings can have high adhesion in hot and humid conditions and optimum short-term and long-term protection from cathodic disbonding at high temperature and humidity.

14 cl, 3 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: composition contains a homogeneous mixture consisting of at least one bromine-functionalised epoxy resin, at least one epoxy curing agent and at least one pigment, filler and/or coating additive. Content of bromine in the bromine-functionalised epoxy resin is equal to 5-60%. The composition also contains alkanol amine and at least one zinc borate compound. Alkanol amine is selected from a group consisting of diethanol amine and tris(hydroxymethyl)aminomethane. The method of preparing the composition involves mixing components, heating to melting point of the mixture, extrusion of the molten mixture, cooling, crushing and grinding to powder. The composition provides a coating with high glass transition temperature and acceptable flexibility when depositing the coating onto a metallic or plastic base, in particular metallic and plastic pipes.

EFFECT: coatings can have high adhesion in hot and humid conditions and optimum short-term and long-term protection from cathodic disbonding at high temperature and humidity.

14 cl, 3 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: at the first step (a) of the method of preparing fire-resistant binder, a hardener is added to liquid epoxy resin, having temperature not higher than approximately 30C. At the second step (b), copper nanoparticles are added to the obtained mixture At the third step (c) the mixture is mixed with the added copper nanoparticles to obtain a stable suspension. At the fourth step (d) the obtained suspension is added to pre-accelerated cold-setting vinyl ether resin. Finally, at the fifth step (e) the formed mixture is stirred to obtain fire-resistant binder.

EFFECT: high fire resistance of composite materials prepared using said binder, while preserving mechanical characteristics of such materials, their physical-mechanical properties and manufacturability when processing using an infusion technique.

18 cl, 3 ex, 2 tbl

FIELD: chemistry.

SUBSTANCE: at the first step (a) of the method of preparing an epoxy composition, a suspension of functionalised OH-groups of carbon nanotubes in methylethylketone solvent is prepared by mixing in an ultrasonic disperser. At the second step (b) discrete fibrous filler is added to the prepared suspension in form of wollastonite and mixed until formation of a homogeneous mixture. At the third step (c) said methylethylketone solvent is removed from the obtained mixture. At the fourth step (d) residue of said mixture is added to the epoxy binder after removal of the solvent. Finally, at the fifth step (e) the formed compound is stirred to obtain said epoxy composition with high crack resistance.

EFFECT: high crack resistance, good strength properties and cracking resistance in pultrusion moulding process.

15 cl, 3 ex, 4 tbl

FIELD: chemistry.

SUBSTANCE: composition is a mixture of filler - discrete basalt fibre with fibre diametre of 9-12 mcm and length of up to 1000 mcm with binder - epoxyvinylether resin EVS-9133. Concentration of said filler in the mixture is 30-70 wt %.

EFFECT: high temperature resistance of material hardened with disclosed composition, high wear resistance in a liquid medium containing abrasive material and in dry friction conditions, chemical resistance during operation in aggressive media, reduced probability of scaling on the surface, simple formulation, cheap preparation and wide range of compositions.

1 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: modifier selected from oligooxypropylenediols with molecular weight from 400 to 5003, oligooxyethylenediols with molecular weight from 400 to 5003, mixtures thereof with molecular weight from 400 to 5003. The modifier is added in amount of 10-15 wt %. Epoxide compounds have relative elongation from 12.5 to 20% with retention or improvement of strength characteristics.

EFFECT: high elasticity and strength of compounds.

2 cl, 1 tbl, 13 ex

Epoxide compound // 2404213

FIELD: chemistry.

SUBSTANCE: epoxide compound contains at least one epoxydiane resin or mixture thereof with other resins, an anhydride hardener and a hardening catalyst - an organic cation of a quaternary ammonium salt immobilised by a layered aluminium silicate of the montmorillonite group, where the said organic cation has the formula:

, where R1, R2 and R3 are aliphatic hydrocarbon radicals, at least one of them containing 8-20 carbon toms, and the rest having not more than two carbon atoms, R4-H, CH3, C2H5, benzyl, A is the skeleton of the montmorillonite plate.

EFFECT: composition has an improved system of physical and mechanical properties.

5 tbl, 12 ex

FIELD: chemistry.

SUBSTANCE: invention relates to foam compound compositions used for cast moulding articles for radio- and electrical purposes, containing the following in pts. wt: 75-85 epoxy-diane resin ED-20, triglycidyl esters of polyoxypropylene triol 43.5-49.3 Laproxide-703 and 10.5-11.9 Laproxide-301, 30-34 ethylenediaminomethylphenol AF-2, 30-34 low-molecular polyamide resin PO-300, 15-17 polyhydrosiloxane liquid 136-41, 1.5-1.7 foam regulator Penta-483, 1.5-1.7 brand A catalyst, 3.7-4.3 ethylsilicate-40 and 0.02-0.03 acetone.

EFFECT: low level of matching in the frequency band (VSWR - 1,25-1,35), increase in amplification coefficient of the emitter in a wide frequency range by 0,5 dB, levelling of the beam shape of the emitter with retention of its high mechanical strength under impact and vibration loads.

1 cl, 2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a curable epoxy resin lacquer composition. The composition contains the following: (a) epoxy resin; (b) an amphiphilic bloc-copolymer containing at least one block segment which is compatible with epoxy resin, and at least one block segment which is incompatible with epoxy resin; where the incompatible block segment contains at least one polyester structure; where the compatible block segment contains at least one polyether structure; (c) a curing agent; (d) a curing catalyst; and (e) a solvent. The invention also discloses a method of preparing the curable composition, a method of preparing a prepreg, a prepreg and laminated material.

EFFECT: invention improves impact viscosity of epoxy resins.

24 cl, 2 ex, 3 tbl

Composite material // 2395536

FIELD: chemistry.

SUBSTANCE: invention relates to composite materials which can be used in aircraft construction. The composite material is made from aramid type fibre reinforcement (bundle) and a composition consisting of a mixture of epoxy resins as a polymer matrix and an aromatic amine as a hardening agent, with the following ratio of components in wt %: epoxy resin UP-610 17.6-24.7, aliphatic epoxy resin DEG-1 3.1-4.4, aromatic amine UP-0638 4.2-6.0, aramid type fibre reinforcement 65-75.

EFFECT: composite material has better elastic and strength properties, particularly Young's modulus of elasticity of 123 GPa and ultimate tensile stress of 2,57 GPa.

1 cl, 2 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: composition contains crystalline propyelen polymer, elastomeric copolymer of ethylene and propylene and polyethylene. When combined with components with certain values of polydispersity index and characteristic viscosity in given ratios, the composition exhibits high hardness, impact resistance and resistance to bleaching under loading. The composition has flexural modulus higher than 1300 MPa, resistance to bleaching during impact corresponding to diametre of the bleaching area not greater than 1.7 cm, caused by a die falling from a height of 76 cm and diametre of the bleaching area not greater than 1.2 cm, caused by a die falling from a height of 20 cm, and Izod impact resistance at 23C greater than 14 kJ/m2 and at least equal to 6.5 kJ/m2 at -20C.

EFFECT: composition has good balance of mechanical properties, is suitable for making articles through pressure casting, such as casings of batteries and consumer goods, and during hot shaping processes.

2 cl, 4 tbl, 3 ex

FIELD: textile, paper.

SUBSTANCE: heat-shielding material is made of a shaped layer of aramid fibre of non-woven structure with diametre of fibre from 1 to 10 nm, laid between two layers of rubber mix on the basis of ethylene-propylene rubber with further curing in item composition.

EFFECT: invention makes it possible through usage of new nanofibre filler to solve the problem of its recycling on completion of item life cycle.

1 dwg, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention can be particularly used in the cable industry when making electrical cable shielding used in explosive environments, in electrical engineering when making working sheath of earthing electrodes in general-purpose protective earthing systems, protection from static electricity and electrochemical protection from corrosion in the ground, fresh and sea water etc. The rubber mixture contains the following in pts. wt: synthetic ethylenepropylene diene rubber 90-100, technical sulphur 0.3-0.5, paraffin-naphthalene oil 10-15, bis-tertbutylperoxyisopropyl benzene 5.0-6.5, zinc oxide 5-8, electroconductive technical carbon 80-100, carbon-fibre material made from hydrocellulose fibre 15-25. The electrical current conductor comprises at least one conductor which has a shielding or working sheath made from the said rubber mixture.

EFFECT: improved operational characteristics of the electroconductive rubber mixture and electrical current conductors made from the said mixture.

4 cl, 2 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to thermoplastic rubber obtained through dynamic vulcanisation, which can be used to make various elastic industrial rubber products such as hoses, sealants, linings, elastic articles for the interior and exterior of automobiles, different corrugated elastic articles. The thermoplastic rubber is made from a composition consisting of ethylenepropylenediene elastomer, polypropylene, hydrocarbon oil, fine-grained filler, curing agents which include polyhydrosiloxane which contains at least two SiH groups, and a platinum catalyst. The composition also contains a higher fatty alcohol with 12-22 carbon atoms and an organophosphorus cyano-containing compound selected from an alkylcyanoethylphosphite group of general formula (NCC2H4O)nP(OR')3-n or alkylcyanoethylphophine of general formula (NCC2H4O)nP(R')3-n, where R' is an alkyl with 2-3 carbon atoms, n=1-3.

EFFECT: increased fluidity of the molten mass while retaining good deformation and strength characteristics.

2 tbl, 20 ex

FIELD: chemistry.

SUBSTANCE: present invention relates to a polyethylene composition with multimodal molecular weight distribution for blow moulding canisters with volume ranging from 2 to 20 dm3 and a method of preparing the said composition. The composition has density ranging from 0.950 to 0.958 g/cm3 at 23C and melt flow rate (MFR190/5) from 0.30 to 0.50 dg/min. The composition also contains 40 to 50 wt % low molecular weight ethylene homopolymer A and 25 to less than 30 wt % high molecular weight copolymer B obtained from ethylene and another 1-olefin containing 4 to 8 carbon atoms, and 24 to 28 wt % ethylene copolymer C having ultra-high molecular weight.

EFFECT: obtained composition has good resistance to chemical effect, especially high mechanical strength, high corrosion resistance and is a naturally light material; high melt strength of the composition enables prolonged extrusion without breaking the workpiece, and an accurately selected swelling index of the composition enables optimisation of controlling thickness of the wall of the article.

10 cl, 1 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: invention relates to polyolefin substrates, for example to objects moulded from polypropylene, polyethylene or thermoplastic olefin, which is scratch resistant. Scratch resistance is achieved by adding an additive to polyolefin: maleated alpha olefin, functionalised long-chain alcohol or long-chain amine, and a primary or secondary amide of a fatty acid. The functionalised maleated alpha olefin is, for instance an ester or a partial ester of a maleated C18-C26alpha olefin with a tall fatty alcohol. The fatty acid amide is oleyl palmitate or stearyl erucamide, for example.

EFFECT: polyolefin compositions have high weather resistance, scratch resistance, good processibility, high mechanical strength, retain lustre well and are not sticky.

13 cl, 1 ex

FIELD: chemistry.

SUBSTANCE: invention relates to polyolefin compositions which have high decolouration and impact resistance. The composition contains from 50 to less than 70 wt % crystalline propylene homopolymer, 13-28 wt % elastomeric ethylene and propylene copolymer and 10-22 wt % polyethylene. Total amount of the elastomeric copolymer and polyethylene in the composition is more than 30 wt %. The crystalline propylene homopolymer has polydispersity index ranging from 4 to 10 and amount of isotactic pentades (mmmm) measured using 13C-NMR method on a fraction which is insoluble in xylene at 25C more than 97.5 mol %. The elastomeric ethylene copolymer is partially soluble in xylene at ambient temperature. The polymer fraction which is soluble in xylene has value of inherent viscosity, measured in tetrahydronaphthalene at 135C, which ranges from 2 to 4 dl/g. Polyethylene has inherent viscosity ranging from 1 to 3 dl/g.

EFFECT: obtained polypropylene compositions have relatively low hardness, high impact resistance and high resistance to decolouration, which enables their use in the motor car industry, particularly in bumpers and interior finishing, packaging and household objects.

5 cl, 4 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: invention relates to methods of producing thermoplastic elastomer compositions, realised through dynamic vulcanisation of a mixture of components of a composition, meant for preparing sealing components, tubing, insulation for components of electric devices, used in aviation, automobile, cable and other industries. The method is realised by loading an ethylene-propylene-diene copolymer and target additives at the first step. Temperature is raised to 120C and vulcanising agents are added. At temperature of 150C, thermoplastics are added - polyethylene and polypropylene in amount of 30-50 wt % of their total content and stirring is done at temperature of 190C. At the second step the remaining amount of thermoplastics is added to the obtained mixture.

EFFECT: obtaining a thermoplastic elastomer composition with improved mechanical, rheological and electrical characteristics.

3 cl, 1 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to production of waterproofing materials in form of profiled objects - cords, meant for sealing joints in unit construction and which provide for waterproofing through fast water regain. The polymer sealing composition contains, wt %: polymer - synthetic ethylene-propylene triple rubber - 23.78-86-80, natural bentonite - 8.68-71.34, sodium carbonate - 0.09-2.38, titanium white - 2.38-4.34 and colouring pigment - 0.09-0.12.

EFFECT: increased degree of water regain, resistance to effect of atmospheric factors, increased frost- and ozone resistance, cohesion strength and elasticity after the material dries.

1 tbl, 2 ex

FIELD: engines and pumps.

SUBSTANCE: invention relates to solid-propellant charges. Proposed charge comprises casing and propellant charge attached thereto by protective-attachment layer. The latter represents a calendered sheet material based on ethylene-propylene and comprising serpentine asbestos as filler, dioctyldecyl adipate as plastifier and n-dinitrosobenzene as adhesive additive. Note here that the surface of aforesaid layer, on boundary of contact with propellant charge, is subjected to modification by thermally-treated 4,4'-diphenyl methane diisocyanate in the amount of 5 to 20 g/m2.

EFFECT: reliable attachment of charge to engine housing that allows charge longer life.

1 dwg, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to polymer-based construction materials used in making chemical-resistant, high-strength articles and structures. The polymer-concrete mixture contains the following in wt %: low molecular weight polybutadiene 8-11; sulphur 4.0-5.5; thiuram 0.15-0.35; captax 0.04-0.12; diphenylguanidine 0.04-0.12; zinc oxide 1.0-2.4; calcium oxide 0.45-0.60; thermal power plant flue ash 8-10; quartz sand 22-25; crushed granite stone 44.91-56.32.

EFFECT: invention enables to obtain a composite with high heat resistance with shorter polymer-concrete vulcanisation time.

3 tbl, 1 ex

Up!