CN114149640A - Oil-resistant ethylene propylene diene monomer hose and preparation method thereof - Google Patents
Oil-resistant ethylene propylene diene monomer hose and preparation method thereof Download PDFInfo
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- CN114149640A CN114149640A CN202111657164.8A CN202111657164A CN114149640A CN 114149640 A CN114149640 A CN 114149640A CN 202111657164 A CN202111657164 A CN 202111657164A CN 114149640 A CN114149640 A CN 114149640A
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- 229920002943 EPDM rubber Polymers 0.000 title claims abstract description 75
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229920001971 elastomer Polymers 0.000 claims abstract description 70
- 239000005060 rubber Substances 0.000 claims abstract description 70
- 238000002156 mixing Methods 0.000 claims abstract description 60
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 40
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 39
- 239000004945 silicone rubber Substances 0.000 claims abstract description 39
- 239000011787 zinc oxide Substances 0.000 claims abstract description 20
- 239000000126 substance Substances 0.000 claims abstract description 19
- 229920001577 copolymer Polymers 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims description 72
- 239000003795 chemical substances by application Substances 0.000 claims description 58
- 239000003921 oil Substances 0.000 claims description 39
- 229920000459 Nitrile rubber Polymers 0.000 claims description 29
- 238000010074 rubber mixing Methods 0.000 claims description 29
- 239000006229 carbon black Substances 0.000 claims description 25
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 24
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 24
- 150000001875 compounds Chemical class 0.000 claims description 20
- 235000021355 Stearic acid Nutrition 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 16
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 16
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 16
- 239000008117 stearic acid Substances 0.000 claims description 16
- 239000005662 Paraffin oil Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 15
- 239000012752 auxiliary agent Substances 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 12
- 150000004760 silicates Chemical class 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000007670 refining Methods 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 9
- -1 β -naphthyl Chemical group 0.000 claims description 7
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 claims description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 6
- 230000003712 anti-aging effect Effects 0.000 claims description 5
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical compound C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- KEQFTVQCIQJIQW-UHFFFAOYSA-N N-Phenyl-2-naphthylamine Chemical compound C=1C=C2C=CC=CC2=CC=1NC1=CC=CC=C1 KEQFTVQCIQJIQW-UHFFFAOYSA-N 0.000 claims description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 3
- 239000004359 castor oil Substances 0.000 claims description 3
- 235000019438 castor oil Nutrition 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 3
- STSDHUBQQWBRBH-UHFFFAOYSA-N n-cyclohexyl-1,3-benzothiazole-2-sulfonamide Chemical compound N=1C2=CC=CC=C2SC=1S(=O)(=O)NC1CCCCC1 STSDHUBQQWBRBH-UHFFFAOYSA-N 0.000 claims description 3
- HNWAHFPYJHAAJE-UHFFFAOYSA-N n-tert-butyl-1,3-benzothiazole-2-sulfonamide Chemical compound C1=CC=C2SC(S(=O)(=O)NC(C)(C)C)=NC2=C1 HNWAHFPYJHAAJE-UHFFFAOYSA-N 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229920000223 polyglycerol Polymers 0.000 claims description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- BOXSVZNGTQTENJ-UHFFFAOYSA-L zinc dibutyldithiocarbamate Chemical compound [Zn+2].CCCCN(C([S-])=S)CCCC.CCCCN(C([S-])=S)CCCC BOXSVZNGTQTENJ-UHFFFAOYSA-L 0.000 claims description 3
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 230000003078 antioxidant effect Effects 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 claims 1
- 238000009472 formulation Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 238000002715 modification method Methods 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 7
- 238000011161 development Methods 0.000 description 5
- 239000003431 cross linking reagent Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- MNDJKTIGCWCQIG-UHFFFAOYSA-N 4-n-naphthalen-2-ylbenzene-1,4-diamine Chemical compound C1=CC(N)=CC=C1NC1=CC=C(C=CC=C2)C2=C1 MNDJKTIGCWCQIG-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000012744 reinforcing agent Substances 0.000 description 2
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
- BMFMTNROJASFBW-UHFFFAOYSA-N 2-(furan-2-ylmethylsulfinyl)acetic acid Chemical compound OC(=O)CS(=O)CC1=CC=CO1 BMFMTNROJASFBW-UHFFFAOYSA-N 0.000 description 1
- 239000004322 Butylated hydroxytoluene Substances 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920001774 Perfluoroether Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229940095259 butylated hydroxytoluene Drugs 0.000 description 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 229920006235 chlorinated polyethylene elastomer Polymers 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- UJMWVICAENGCRF-UHFFFAOYSA-N oxygen difluoride Chemical compound FOF UJMWVICAENGCRF-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention provides an oil-resistant ethylene propylene diene monomer hose and a preparation method thereof, wherein the oil resistance of ethylene propylene diene monomer is improved by using a mechanical blending modification method, so that the compatibility of polar rubber and non-polar rubber is improved, in the specific implementation process, the ethylene propylene diene monomer is used as a main substance and then is mixed with ethylene-acetic acid copolymer and zinc oxide, double bonds in methyl vinyl silicone rubber and the ethylene-acetic acid copolymer can effectively form a settled layer containing oxygen groups on the surface of the hose, the surface hydrophilicity is rich, the oil resistance is improved, and the zinc oxide increases gaps among the rubber, so that the heat dissipation capability is enhanced.
Description
Technical Field
The invention relates to the field of ethylene propylene diene monomer hoses, in particular to an oil-resistant ethylene propylene diene monomer hose and a preparation method thereof.
Background
In recent years, the automobile industry is accelerating the pace of upgrading automobiles, and the rapid and strong automobile manufacturing industry has greatly promoted the development, prosperity and prosperity of national economy, particularly in terms of energy conservation, environmental protection, safety and riding comfort. The rapid development of the automobile industry in China brings unprecedented development opportunities and challenges to the automobile rubber pipe industry.
In automobiles, hoses are used for transporting oil, gas, refrigerants, water, and power, among others. The hose used on the automobile includes: fuel rubber hose, air conditioner rubber hose, brake rubber hose, radiator rubber hose, etc. The structure and material of the automobile rubber hose vary according to the use, performance, function, medium used and ambient temperature. The rubber material is selected to play a decisive role in the performance of the rubber tube, the rubber tube for the automobile is contacted with various media, the using condition is severe, the technical requirement is severe, and the rubber tube is a composite structure rubber product with multiple varieties and wide using materials. At present, the rubber tube for the automobile is more in variety and material, wherein ethylene propylene diene monomer rubber has good elasticity, wear resistance, heat resistance, weather resistance, ozone resistance, fresh water resistance and seawater resistance, and is widely applied to rubber products for the automobile, such as door and window sealing strips, hydraulic brake hoses and sealing rings, air-conditioning ventilation pipelines, sealing elements in an engine cooling system and an air-conditioning refrigeration system and hoses for conveying cooling liquid. At present, the research on the performance improvement of the ethylene propylene diene monomer rubber for the automobile rubber pipe mainly focuses on the aspects of high temperature resistance, oil resistance and the like.
The Chinese patent application No. 201510505191.1 discloses a modified rubber material for an automobile rubber tube and a preparation method thereof, and the modified rubber material is mainly prepared from the following components in parts by weight: 40 parts of ethylene propylene diene monomer, 10-20 parts of maleic anhydride, 40-60 parts of chlorinated polyethylene rubber, 2-8 parts of coupling agent, 20-40 parts of perfluoro ether rubber, 1-9 parts of zinc oxide, 2-6 parts of stearic acid, 15-35 parts of carbon black, 2-6 parts of sulfur, 0.2-0.8 part of butylated hydroxytoluene, 0.3-0.7 part of zinc methacrylate and 30-40 parts of acetone. Compared with the prior art, the modified rubber material for the automobile rubber tube and the preparation method thereof have the advantages of simple process and low cost, have the advantages of the rubber material in the prior art, can improve the high temperature resistance and the oil resistance of the rubber material, and are still not ideal.
The Chinese invention patent application number 201110422747.2 discloses ethylene propylene diene monomer for a rubber tube system of a hydrogen energy power automobile, which comprises the following components in parts by weight: 50-80 parts of ethylene propylene diene monomer, 10-25 parts of methyl vinyl silicone rubber, 10-25 parts of chlorosulfonated polyethylene rubber, 5-15 parts of compatibilizer, 2-8 parts of zinc oxide, 1-7 parts of stearic acid, 1-5 parts of antioxidant RD, 1-5 parts of antioxidant MB, 40-90 parts of fast extrusion carbon black N550, 10-30 parts of white carbon black, 10-40 parts of paraffin-based oil, 1-8 parts of crosslinking agent DCP, 1-8 parts of assistant crosslinking agent TAIC and 1-8 parts of assistant crosslinking agent PDM. The ethylene propylene diene monomer rubber tube meets the requirements of product performance, simultaneously improves the air tightness, compression permanent deformation and flame retardance of the ethylene propylene diene monomer rubber tube, improves the original high temperature resistance, corrosion resistance and fatigue resistance, but still cannot meet the further use requirements due to the high temperature resistance, and has poor oil resistance.
In summary, in the prior art, the rubber used for the automobile rubber tube material comprises ethylene propylene diene monomer, and due to the fact that the structure of the rubber is limited, the rubber has the defects of poor high temperature resistance, poor oil resistance and the like in use, the automobile rubber tube has poor durability and short service life, and development and application of the rubber material in the field of automobile rubber tubes are restricted, so that the development of the rubber automobile rubber tube with good oil resistance is significant.
Disclosure of Invention
Aiming at the defects in the technology, the invention provides the oil-resistant ethylene propylene diene monomer hose and the preparation method thereof, and the oil resistance of the ethylene propylene diene monomer is improved by using a mechanical blending modification method, so that the compatibility of polar rubber and non-polar rubber is improved, and the oil resistance of the ethylene propylene diene monomer is further improved.
In order to achieve the purpose, the invention provides an oil-resistant ethylene propylene diene monomer hose which is applied to an automobile cooling system and comprises the following components in percentage by mass:
ethylene propylene diene monomer: 50-70 parts;
ethylene acetic acid copolymer: 10-20 parts;
methyl vinyl silicone rubber: 20-30 parts of a solvent;
nitrile rubber: 10-15 parts;
zinc oxide: 3-5 parts;
stearic acid: 0.8-1.2 parts;
homogenizing agent: 5-10 parts;
carbon black: 60-80 parts;
paraffin oil: 10-30 parts;
silicate salt: 10-20 parts;
rubber auxiliary agent: 6-9 parts of a solvent;
vulcanizing agent: 3-8 parts.
Preferably, the optimized formula consists of the following components in percentage by mass:
ethylene propylene diene monomer: 60 parts;
ethylene acetic acid copolymer: 15 parts of (1);
methyl vinyl silicone rubber: 25 parts of (1);
nitrile rubber: 12 parts of (1);
zinc oxide: 4 parts of a mixture;
stearic acid: 1 part;
homogenizing agent: 8 parts of a mixture;
carbon black: 70 parts of (B);
paraffin oil: 20 parts of (1);
silicate salt: 15 parts of (1);
rubber auxiliary agent: 7 parts;
vulcanizing agent: 5 parts of the raw materials.
Preferably, the homogenizing agent is one of RH150 or RH100, the rubber auxiliary agent is a mixture of an anti-aging agent, a solubilizer and an accelerator, and the vulcanizing agent is sulfur.
Preferably, the anti-aging agent is at least one of N-phenyl-beta-naphthylamine, 2-mercaptobenzimidazole, N '-di (beta-naphthyl) p-phenylenediamine and N- (1, 3-dimethyl) butyl-N' -phenyl p-phenylenediamine; the solubilizer is at least one of polyoxyethylene castor oil, fatty alcohol-polyoxyethylene ether and polyglycerol fatty acid ester; the accelerator is at least one of 2-mercaptobenzothiazole, N-cyclohexyl-2-benzothiazole sulfonamide, N-tertiary butyl-2-benzothiazole sulfonamide and zinc di-N-butyl dithiocarbamate.
The invention also discloses a preparation method of the oil-resistant ethylene propylene diene monomer hose, which is used for preparing the oil-resistant ethylene propylene diene monomer hose, and comprises the following steps:
s1, crushing and refining ethylene propylene diene monomer, ethylene-vinyl acetate copolymer, methyl vinyl silicone rubber and nitrile rubber, and then weighing the substances according to mass fractions;
s2: carrying out thin-pass mixing on ethylene propylene diene monomer and ethylene-vinyl acetate copolymer for several times through an open rubber mixing mill, adding nitrile rubber and carbon black for mixing, adding a homogenizing agent after uniform mixing, continuing thin-pass mixing, and finally adding methyl vinyl silicone rubber for uniform thin-pass mixing; obtaining a primary mixture;
s3: placing the primary mixture at room temperature for 3-5 days, transferring to a rubber mixing mill, performing thin-pass for several times, adding the rest substances, stirring, and heating to obtain a compound mixture;
s4: and (3) putting the compound mixture into an extruder for extrusion, and then cooling and shaping to obtain the oil-resistant ethylene propylene diene monomer rubber hose.
Preferably, in step S1, the pulverization and refinement treatment is performed so that the particle size of the pulverized material does not exceed 0.5 mm.
Preferably, in step S2, the number of thin passes of the ethylene propylene diene monomer and the ethylene-vinyl acetate copolymer in the open mill is 2-5; the rubber mixing machine has the following setting parameters: the front roller temperature is 45-55 ℃, and the rear roller temperature is 50-60 ℃; the distance between the thin through rollers is less than or equal to 1 mm.
Preferably, in step S3, after the primary mixture is added into a rubber mixing mill, zinc oxide, stearic acid, paraffin oil and silicate are added for mixing, after uniform mixing, drying is performed, baking is performed at 150 ℃ for 2h, then the mixture is transferred to room temperature, after cooling for 6h, a rubber additive is added, and after transferring to the rubber mixing mill for mixing, a vulcanizing agent is added, and after uniform mixing, discharging is performed.
The invention has the beneficial effects that: compared with the prior art, the oil-resistant ethylene propylene diene monomer hose and the preparation method thereof, the oil resistance of the ethylene propylene diene monomer is improved by using a mechanical blending modification method, so that the compatibility of polar rubber and non-polar rubber is improved, in the specific implementation process, the ethylene propylene diene monomer is used as a main substance and then is mixed with the ethylene-vinyl acetate copolymer and the zinc oxide, double bonds in the methyl vinyl silicone rubber and the ethylene-vinyl acetate copolymer can effectively form a deposition layer containing oxygen groups on the surface of the hose, the surface hydrophilicity is rich, the oil resistance is improved, while zinc oxide increases the gaps between the rubbers, thereby enhancing the heat dissipation capacity, and more importantly, the homogenizing agent is added before the methyl vinyl silicone rubber is added, so that the shearing force of the whole substance cannot be reduced, and the finally obtained hose can meet the use requirement.
Drawings
FIG. 1 is a flow chart of the steps of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments, not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or including indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as exemplary is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles disclosed herein.
The invention discloses an oil-resistant ethylene propylene diene monomer hose which is applied to an automobile cooling system and comprises the following components in percentage by mass: ethylene propylene diene monomer: 50-70 parts; ethylene acetic acid copolymer: 10-20 parts; methyl vinyl silicone rubber: 20-30 parts of a solvent; nitrile rubber: 10-15 parts; zinc oxide: 3-5 parts; stearic acid: 0.8-1.2 parts; homogenizing agent: 5-10 parts; carbon black: 60-80 parts; paraffin oil: 10-30 parts; silicate salt: 10-20 parts; rubber auxiliary agent: 6-9 parts of a solvent; vulcanizing agent: 3-8 parts. In the embodiment, ethylene propylene diene monomer is used as a basic substance, and ethylene-vinyl acetate copolymer and methyl vinyl silicone rubber are used for depositing oxygen-containing groups on the surface of rubber, so that the oil resistance of the product is improved, silicate and carbon black are respectively used as a reinforcing agent and a reinforcing agent, the mechanical property of the whole product can be effectively enhanced, and the silicate can be sodium silicate or calcium silicate in a specific using process; and paraffin oil is as the plasticizer, can effectively make the pliability of whole product stronger, also satisfies the user demand of hose when being convenient for process.
In order to realize the purpose, the homogenizing agent is one of RH150 or RH100, the rubber auxiliary agent is a mixture of an anti-aging agent, a solubilizer and an accelerator, and the vulcanizing agent is sulfur. The anti-aging agent is at least one of N-phenyl-beta-naphthylamine, 2-mercaptobenzimidazole, N '-di (beta-naphthyl) p-phenylenediamine and N- (1, 3-dimethyl) butyl-N' -phenyl p-phenylenediamine; the solubilizer is at least one of polyoxyethylene castor oil, fatty alcohol polyoxyethylene ether and polyglycerol fatty acid ester; the accelerator is at least one of 2-mercaptobenzothiazole, N-cyclohexyl-2-benzothiazole sulfonamide, N-tertiary butyl-2-benzothiazole sulfonamide and zinc di-N-butyl dithiocarbamate.
Referring to fig. 1, the invention discloses a preparation method of an oil-resistant ethylene propylene diene monomer hose, which comprises the following steps: s1, crushing and refining ethylene propylene diene monomer, ethylene-vinyl acetate copolymer, methyl vinyl silicone rubber and nitrile rubber, and then weighing the substances according to mass fractions; s2: carrying out thin-pass mixing on ethylene propylene diene monomer and ethylene-vinyl acetate copolymer for several times through an open rubber mixing mill, adding nitrile rubber and carbon black for mixing, adding a homogenizing agent after uniform mixing, continuing thin-pass mixing, and finally adding methyl vinyl silicone rubber for uniform thin-pass mixing; obtaining a primary mixture; s3: placing the primary mixture at room temperature for 3-5 days, transferring to a rubber mixing mill, performing thin-pass for several times, adding the rest substances, stirring, and heating to obtain a compound mixture; s4: and (3) putting the compound mixture into an extruder for extrusion, and then cooling and shaping to obtain the oil-resistant ethylene propylene diene monomer rubber hose. In a specific implementation process, in the step S1, when the pulverization and refinement treatment is performed, the particle size of the pulverized substances is not more than 0.5mm, and the refined substances can be more easily mixed, so that the purpose of uniform mixing is achieved; in step S2, the number of thin passes of ethylene propylene diene monomer and ethylene-vinyl acetate copolymer in the open mill is 2-5; the rubber mixing machine has the following setting parameters: the temperature of the front roller is 45-55 ℃, and the temperature of the rear roller is 50-60 ℃; the distance between the thin through rollers is less than or equal to 1 mm. In step S3, adding the primary mixture into a rubber mixer, adding zinc oxide, stearic acid, paraffin oil and silicate, mixing, drying after mixing uniformly, baking at 150 ℃ for 2h, transferring to room temperature, cooling for 6h, adding a rubber additive, transferring to the rubber mixer for mixing, adding a vulcanizing agent, mixing uniformly, and discharging. In a specific implementation process, the methyl vinyl silicone rubber cannot be added firstly and then the homogenizing agent is added, because the material dispersibility of the homogenizing agent is poor, and the methyl vinyl silicone rubber can reduce the shearing force, so that the methyl vinyl silicone rubber and the homogenizing agent are added in the order; compared with the conventional mechanical blending mode, the adding mode adopts batch adding, the adding sequence is different according to the difference of materials, the thin passing times adopted by the adding mode are obviously enhanced, and the thin passing remill is carried out after the adding mode is placed, so that the uniform dispersion of substances is ensured, the internal stress is eliminated, and the quality of a compound mixture is ensured.
The invention is further illustrated by the following specific examples:
example 1: weighing ethylene propylene diene monomer: 50 parts of a mixture; ethylene acetic acid copolymer: 10 parts of (A); methyl vinyl silicone rubber: 20 parts of (1); nitrile rubber: 15 parts of (1); zinc oxide: 3 parts of a mixture; stearic acid: 0.8 part; homogenizing agent: 0 part of (C); carbon black: 60 parts; paraffin oil: 10 parts of (A); silicate salt: 10 parts of (A); rubber auxiliary agent: 6 parts of (1); vulcanizing agent: 3 parts of a mixture;
then, crushing and refining ethylene propylene diene monomer, ethylene-vinyl acetate copolymer, methyl vinyl silicone rubber and nitrile rubber; carrying out thin-pass mixing on ethylene propylene diene monomer and ethylene-vinyl acetate copolymer by an open rubber mixing mill for 3 times, adding nitrile rubber and carbon black for mixing, adding a homogenizing agent after uniform mixing, continuing thin-pass mixing for 5 times, and finally adding methyl vinyl silicone rubber for thin-pass mixing uniformly; obtaining a primary mixture; placing the primary mixture at room temperature for 3-5 days, transferring to a rubber mixing mill, performing thin-pass for several times, adding the rest substances, stirring, and heating to obtain a compound mixture; putting the compound mixture into an extruder for extrusion, and then cooling and shaping to obtain an oil-resistant ethylene propylene diene monomer rubber hose; wherein the temperature of a screw of the extruder is set to be 75 ℃, and the temperature of a machine head is set to be 90 ℃; the rubber mixing machine has the following setting parameters: the temperature of the front roller is 45 ℃, and the temperature of the rear roller is 50 ℃; the distance between the thin through rollers is less than or equal to 1 mm.
Example 2:
weighing ethylene propylene diene monomer: 50 parts of a mixture; ethylene acetic acid copolymer: 10 parts of (A); methyl vinyl silicone rubber: 20 parts of (1); nitrile rubber: 15 parts of (1); zinc oxide: 3 parts of a mixture; stearic acid: 0.8 part; homogenizing agent: 5 parts of a mixture; carbon black: 60 parts; paraffin oil: 10 parts of (A); silicate salt: 10 parts of (A); rubber auxiliary agent: 6 parts of (1); vulcanizing agent: 3 parts of a mixture;
then, crushing and refining ethylene propylene diene monomer, ethylene-vinyl acetate copolymer, methyl vinyl silicone rubber and nitrile rubber; carrying out thin-pass mixing on ethylene propylene diene monomer and ethylene-vinyl acetate copolymer by an open rubber mixing mill for 3 times, adding nitrile rubber and carbon black for mixing, adding a homogenizing agent after uniform mixing, continuing thin-pass mixing for 5 times, and finally adding methyl vinyl silicone rubber for thin-pass mixing uniformly; obtaining a primary mixture; placing the primary mixture at room temperature for 3-5 days, transferring to a rubber mixing mill, performing thin-pass for several times, adding the rest substances, stirring, and heating to obtain a compound mixture; putting the compound mixture into an extruder for extrusion, and then cooling and shaping to obtain an oil-resistant ethylene propylene diene monomer rubber hose; wherein the temperature of a screw of the extruder is set to be 75 ℃, and the temperature of a machine head is set to be 90 ℃; the rubber mixing machine has the following setting parameters: the temperature of the front roller is 45 ℃, and the temperature of the rear roller is 50 ℃; the distance between the thin through rollers is less than or equal to 1 mm.
Example 3:
weighing ethylene propylene diene monomer: 50 parts of a mixture; ethylene acetic acid copolymer: 10 parts of (A); methyl vinyl silicone rubber: 20 parts of (1); nitrile rubber: 15 parts of (1); zinc oxide: 3 parts of a mixture; stearic acid: 0.8 part; homogenizing agent: 5 parts of a mixture; carbon black: 60 parts; paraffin oil: 10 parts of (A); silicate salt: 10 parts of (A); rubber auxiliary agent: 6 parts of (1); vulcanizing agent: 3 parts of a mixture;
then, crushing and refining ethylene propylene diene monomer, ethylene-vinyl acetate copolymer, methyl vinyl silicone rubber and nitrile rubber; carrying out thin-pass mixing on ethylene propylene diene monomer and ethylene-vinyl acetate copolymer by an open rubber mixing mill for 3 times, adding nitrile rubber, carbon black and methyl vinyl silicone rubber for uniform thin-pass mixing, adding a homogenizing agent after uniform mixing, and continuously carrying out thin-pass mixing for 5 times to obtain a primary mixture; placing the primary mixture at room temperature for 3-5 days, transferring to a rubber mixing mill, performing thin-pass for several times, adding the rest substances, stirring, and heating to obtain a compound mixture; putting the compound mixture into an extruder for extrusion, and then cooling and shaping to obtain an oil-resistant ethylene propylene diene monomer rubber hose; wherein the temperature of a screw of the extruder is set to be 75 ℃, and the temperature of a machine head is set to be 90 ℃; the rubber mixing machine has the following setting parameters: the temperature of the front roller is 45 ℃, and the temperature of the rear roller is 50 ℃; the distance between the thin through rollers is less than or equal to 1 mm.
The rubber hoses obtained in the above three examples were subjected to relevant tests, and the results are as follows
Comparing the above three examples, example 1 and example 2, only comparing with whether or not adding the homogenizing agent, and example 2 and example 3, the adding order of the homogenizing agent is different, and comparing analysis of the above three examples shows that whether or not adding the homogenizing agent has small influence on the hardness of the whole rubber hose, but has large influence on the tensile strength and the elongation at break because the homogenizing agent can effectively improve the homogeneity when mixing the rubber seeds with different polarities and different viscosities, and improve the affinity between the rubber and the compounding agent; the Mooney viscosity of the compounded rubber compound can be reduced, so that the tensile strength and the tensile rate can be improved, but by comparing the example 2 with the example 3, the fact that the methyl vinyl silicone rubber is firstly combined with the homogenizing agent due to the difference of the adding sequence, so that the shearing force is reduced, the tensile strength of the whole hose is reduced, and by comparing the results that the methyl vinyl silicone rubber is not added with the homogenizing agent due to the difference of the adding sequence, on certain indexes such as the tensile strength, the results are not better than the results produced by adding no homogenizing agent, so that the addition of the homogenizing agent is indispensable and the adding sequence is not replaceable by the three examples.
Example 4:
weighing ethylene propylene diene monomer: 70 parts of (B); ethylene acetic acid copolymer: 20 parts of (1); methyl vinyl silicone rubber: 20 parts of (1); nitrile rubber: 10 parts of (A); zinc oxide: 5 parts of a mixture; stearic acid: 1.2 parts; homogenizing agent: 10 parts of (A); carbon black: 80 parts of a mixture; paraffin oil: 30 parts of (1); silicate salt: 20 parts of (1); rubber auxiliary agent: 9 parts of (1); vulcanizing agent: 8 parts of a mixture;
then, crushing and refining ethylene propylene diene monomer, ethylene-vinyl acetate copolymer, methyl vinyl silicone rubber and nitrile rubber; carrying out thin-pass mixing on ethylene propylene diene monomer and ethylene-vinyl acetate copolymer by an open rubber mixing mill for 3 times, adding nitrile rubber and carbon black for mixing, adding a homogenizing agent after uniform mixing, continuing thin-pass mixing for 5 times, and finally adding methyl vinyl silicone rubber for thin-pass mixing uniformly; obtaining a primary mixture; placing the primary mixture at room temperature for 3-5 days, transferring to a rubber mixing mill, performing thin-pass for several times, adding the rest substances, stirring, and heating to obtain a compound mixture; putting the compound mixture into an extruder for extrusion, and then cooling and shaping to obtain an oil-resistant ethylene propylene diene monomer rubber hose; wherein the temperature of a screw of the extruder is set to be 75 ℃, and the temperature of a machine head is set to be 90 ℃; the rubber mixing machine has the following setting parameters: the temperature of the front roller is 50 ℃, and the temperature of the rear roller is 50 ℃; the distance between the thin through rollers is less than or equal to 1 mm.
Example five:
weighing ethylene propylene diene monomer: 60 parts; ethylene acetic acid copolymer: 15 parts of (1); methyl vinyl silicone rubber: 25 parts of (1); nitrile rubber: 12 parts of (1); zinc oxide: 4 parts of a mixture; stearic acid: 1 part; homogenizing agent: 8 parts of a mixture; carbon black: 70 parts of (B); paraffin oil: 20 parts of (1); silicate salt: 15 parts of (1); rubber auxiliary agent: 7 parts; vulcanizing agent: 5 parts of a mixture;
then, crushing and refining ethylene propylene diene monomer, ethylene-vinyl acetate copolymer, methyl vinyl silicone rubber and nitrile rubber; carrying out thin-pass mixing on ethylene propylene diene monomer and ethylene-vinyl acetate copolymer by an open rubber mixing mill for 3 times, adding nitrile rubber and carbon black for mixing, adding a homogenizing agent after uniform mixing, continuing thin-pass mixing for 5 times, and finally adding methyl vinyl silicone rubber for thin-pass mixing uniformly; obtaining a primary mixture; placing the primary mixture at room temperature for 3-5 days, transferring to a rubber mixing mill, performing thin-pass for several times, adding the rest substances, stirring, and heating to obtain a compound mixture; putting the compound mixture into an extruder for extrusion, and then cooling and shaping to obtain an oil-resistant ethylene propylene diene monomer rubber hose; wherein the temperature of a screw of the extruder is set to be 75 ℃, and the temperature of a machine head is set to be 90 ℃; the rubber mixing machine has the following setting parameters: the temperature of the front roller is 50 ℃, and the temperature of the rear roller is 50 ℃; the distance between the thin through rollers is less than or equal to 1 mm.
Example 6:
weighing ethylene propylene diene monomer: 60 parts; ethylene acetic acid copolymer: 15 parts of (1); methyl vinyl silicone rubber: 25 parts of (1); nitrile rubber: 12 parts of (1); zinc oxide: 4 parts of a mixture; stearic acid: 1 part; homogenizing agent: 8 parts of a mixture; carbon black: 70 parts of (B); paraffin oil: 20 parts of (1); silicate salt: 15 parts of (1); rubber auxiliary agent: 7 parts; vulcanizing agent: 5 parts of a mixture;
then, crushing and refining ethylene propylene diene monomer, ethylene-vinyl acetate copolymer, methyl vinyl silicone rubber and nitrile rubber; carrying out thin-pass mixing on ethylene propylene diene monomer and ethylene-vinyl acetate copolymer by an open rubber mixing mill for 3 times, adding nitrile rubber and carbon black for mixing, adding a homogenizing agent after uniform mixing, continuing thin-pass mixing for 5 times, and finally adding methyl vinyl silicone rubber for thin-pass mixing uniformly; obtaining a primary mixture; adding the rest substances, stirring and heating to obtain a compound mixture; putting the compound mixture into an extruder for extrusion, and then cooling and shaping to obtain an oil-resistant ethylene propylene diene monomer rubber hose; wherein the temperature of a screw of the extruder is set to be 75 ℃, and the temperature of a machine head is set to be 90 ℃; the rubber mixing machine has the following setting parameters: the temperature of the front roller is 50 ℃, and the temperature of the rear roller is 50 ℃; the distance between the thin through rollers is less than or equal to 1 mm.
By performing the relevant tests on example 4 to example 6, the results are as follows:
compared with example 5, the difference between example 5 and example 6 is that the amount of the used materials is different, and the difference between example 5 and example 6 is that whether thin pass remilling is carried out after the initial mixture is obtained in the production process, and by analyzing the above data, the hardness of the whole is effectively increased due to the larger amount of the added carbon black and silicate, but the elongation at break is reduced, and the performance parameter change in the high temperature and oil resistance test process is more obvious, because the added rubber component is more, the change is larger in the high temperature or oil environment, therefore, on the premise of ensuring normal use, the mass fraction of the rubber is properly reduced, and the performance of the final product can be effectively enhanced; by comparing example 5 with example 6, it can be seen that many performance parameters are reduced without the thin pass remill, because the thin pass remill can effectively mix all the components sufficiently, so that the rubber mixing process is more thorough, thereby effectively improving the performance of the product.
The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (8)
1. An oil-resistant ethylene propylene diene monomer hose is applied to an automobile cooling system and is characterized by comprising the following components in percentage by mass:
ethylene propylene diene monomer: 50-70 parts;
ethylene acetic acid copolymer: 10-20 parts;
methyl vinyl silicone rubber: 20-30 parts of a solvent;
nitrile rubber: 10-15 parts;
zinc oxide: 3-5 parts;
stearic acid: 0.8-1.2 parts;
homogenizing agent: 5-10 parts;
carbon black: 60-80 parts;
paraffin oil: 10-30 parts;
silicate salt: 10-20 parts;
rubber auxiliary agent: 6-9 parts of a solvent;
vulcanizing agent: 3-8 parts.
2. The oil-resistant ethylene propylene diene monomer hose according to claim 1, wherein the optimized formulation comprises the following components in parts by mass:
ethylene propylene diene monomer: 60 parts;
ethylene acetic acid copolymer: 15 parts of (1);
methyl vinyl silicone rubber: 25 parts of (1);
nitrile rubber: 12 parts of (1);
zinc oxide: 4 parts of a mixture;
stearic acid: 1 part;
homogenizing agent: 8 parts of a mixture;
carbon black: 70 parts of (B);
paraffin oil: 20 parts of (1);
silicate salt: 15 parts of (1);
rubber auxiliary agent: 7 parts;
vulcanizing agent: 5 parts of the raw materials.
3. The oil-resistant ethylene propylene diene monomer hose according to claim 1, wherein the homogenizing agent is one of RH150 or RH100, the rubber auxiliary agent is a mixture of an anti-aging agent, a solubilizer and an accelerator, and the vulcanizing agent is sulfur.
4. The oil-resistant ethylene propylene diene monomer hose according to claim 3, wherein the antioxidant is at least one of N-phenyl- β -naphthylamine, 2-mercaptobenzimidazole, N '-di (β -naphthyl) p-phenylenediamine, and N- (1, 3-dimethyl) butyl-N' -phenyl-p-phenylenediamine; the solubilizer is at least one of polyoxyethylene castor oil, fatty alcohol-polyoxyethylene ether and polyglycerol fatty acid ester; the accelerator is at least one of 2-mercaptobenzothiazole, N-cyclohexyl-2-benzothiazole sulfonamide, N-tertiary butyl-2-benzothiazole sulfonamide and zinc di-N-butyl dithiocarbamate.
5. A preparation method of the oil-resistant ethylene propylene diene monomer hose is characterized by comprising the following steps of:
s1, crushing and refining ethylene propylene diene monomer, ethylene-vinyl acetate copolymer, methyl vinyl silicone rubber and nitrile rubber, and then weighing the substances according to mass fractions;
s2: carrying out thin-pass mixing on ethylene propylene diene monomer and ethylene-vinyl acetate copolymer for several times through an open rubber mixing mill, adding nitrile rubber and carbon black for mixing, adding a homogenizing agent after uniform mixing, continuing thin-pass mixing, and finally adding methyl vinyl silicone rubber for uniform thin-pass mixing; obtaining a primary mixture;
s3: placing the primary mixture at room temperature for 3-5 days, transferring to a rubber mixing mill, performing thin-pass for several times, adding the rest substances, stirring, and heating to obtain a compound mixture;
s4: and (3) putting the compound mixture into an extruder for extrusion, and then cooling and shaping to obtain the oil-resistant ethylene propylene diene monomer rubber hose.
6. The method of manufacturing an oil resistant EPDM hose according to claim 5, wherein the pulverization is performed in step S1 so that the particle diameter of the pulverized material is not more than 0.5 mm.
7. The method for producing an oil-resistant ethylene propylene diene monomer hose according to claim 5, wherein in step S2, the number of thin passes of ethylene propylene diene monomer and ethylene-vinyl acetate copolymer in the open mill is 2 to 5; the rubber mixing machine has the following setting parameters: the front roller temperature is 45-55 ℃, and the rear roller temperature is 50-60 ℃; the distance between the thin through rollers is less than or equal to 1 mm.
8. The method of claim 5, wherein in step S3, the initial mixture is added to a rubber mixer, and then zinc oxide, stearic acid, paraffin oil and silicate are added to mix, and after mixing uniformly, the mixture is dried, baked at 150 ℃ for 2h and then transferred to room temperature, and then cooled for 6h, and then the rubber auxiliary is added, and after transferring to the rubber mixer to mix, the vulcanizing agent is added, and after mixing uniformly, the mixture is discharged.
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| CN115926328A (en) * | 2022-12-02 | 2023-04-07 | 中国第一汽车股份有限公司 | EPDM rubber compound for rubber tube of automobile turbocharging system and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106117823A (en) * | 2016-07-07 | 2016-11-16 | 南京利德东方橡塑科技有限公司 | A kind of high temperature resistant oil resistant and the EPT rubber composition of low abnormal smells from the patient |
| CN110669293A (en) * | 2019-09-06 | 2020-01-10 | 芜湖集拓橡胶技术有限公司 | Oil-resistant ethylene propylene diene monomer |
-
2021
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106117823A (en) * | 2016-07-07 | 2016-11-16 | 南京利德东方橡塑科技有限公司 | A kind of high temperature resistant oil resistant and the EPT rubber composition of low abnormal smells from the patient |
| CN110669293A (en) * | 2019-09-06 | 2020-01-10 | 芜湖集拓橡胶技术有限公司 | Oil-resistant ethylene propylene diene monomer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115926328A (en) * | 2022-12-02 | 2023-04-07 | 中国第一汽车股份有限公司 | EPDM rubber compound for rubber tube of automobile turbocharging system and preparation method thereof |
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