CN117624790A - Thermoplastic elastomer composition, thermoplastic elastomer, preparation method and application thereof - Google Patents
Thermoplastic elastomer composition, thermoplastic elastomer, preparation method and application thereof Download PDFInfo
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- CN117624790A CN117624790A CN202210957665.6A CN202210957665A CN117624790A CN 117624790 A CN117624790 A CN 117624790A CN 202210957665 A CN202210957665 A CN 202210957665A CN 117624790 A CN117624790 A CN 117624790A
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- ethylene propylene
- diene monomer
- propylene diene
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- 229920002725 thermoplastic elastomer Polymers 0.000 title claims abstract description 52
- 239000000203 mixture Substances 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 108
- 239000004743 Polypropylene Substances 0.000 claims abstract description 79
- 229920001155 polypropylene Polymers 0.000 claims abstract description 69
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 40
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 37
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 37
- -1 polypropylene Polymers 0.000 claims abstract description 29
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 26
- 239000004945 silicone rubber Substances 0.000 claims abstract description 26
- 239000011256 inorganic filler Substances 0.000 claims abstract description 25
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 25
- 239000002904 solvent Substances 0.000 claims abstract description 21
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical group [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000004073 vulcanization Methods 0.000 claims description 23
- 239000003921 oil Substances 0.000 claims description 21
- 229920001296 polysiloxane Polymers 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 14
- 229920003023 plastic Polymers 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 7
- KDGNCLDCOVTOCS-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy propan-2-yl carbonate Chemical compound CC(C)OC(=O)OOC(C)(C)C KDGNCLDCOVTOCS-UHFFFAOYSA-N 0.000 claims description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- OJOWICOBYCXEKR-APPZFPTMSA-N (1S,4R)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound CC=C1C[C@@H]2C[C@@H]1C=C2 OJOWICOBYCXEKR-APPZFPTMSA-N 0.000 claims description 5
- 239000004566 building material Substances 0.000 claims description 5
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 claims description 4
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 claims description 4
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 4
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 4
- 150000002978 peroxides Chemical group 0.000 claims description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 4
- 229920002554 vinyl polymer Polymers 0.000 claims description 4
- PRBHEGAFLDMLAL-GQCTYLIASA-N (4e)-hexa-1,4-diene Chemical compound C\C=C\CC=C PRBHEGAFLDMLAL-GQCTYLIASA-N 0.000 claims description 3
- 239000004593 Epoxy Chemical group 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical group C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 claims description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
- 239000011707 mineral Substances 0.000 claims 1
- 239000010690 paraffinic oil Substances 0.000 claims 1
- 235000015096 spirit Nutrition 0.000 claims 1
- 239000000454 talc Substances 0.000 claims 1
- 229910052623 talc Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 10
- 230000032683 aging Effects 0.000 abstract description 5
- 239000003999 initiator Substances 0.000 description 7
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 239000006229 carbon black Substances 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 3
- 239000005662 Paraffin oil Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000005184 naphthylamino group Chemical group C1(=CC=CC2=CC=CC=C12)N* 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- QEQBMZQFDDDTPN-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy benzenecarboperoxoate Chemical compound CC(C)(C)OOOC(=O)C1=CC=CC=C1 QEQBMZQFDDDTPN-UHFFFAOYSA-N 0.000 description 1
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical compound C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 description 1
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 1
- ZNRLMGFXSPUZNR-UHFFFAOYSA-N 2,2,4-trimethyl-1h-quinoline Chemical compound C1=CC=C2C(C)=CC(C)(C)NC2=C1 ZNRLMGFXSPUZNR-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- 125000003785 benzimidazolyl group Chemical group N1=C(NC2=C1C=CC=C2)* 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical group OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920005629 polypropylene homopolymer Polymers 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
Landscapes
- 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)
Abstract
The invention relates to the field of thermoplastic elastomer materials, and discloses an ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition, an ethylene propylene diene monomer/polypropylene thermoplastic elastomer, and a preparation method and application thereof. The ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition comprises ethylene propylene diene monomer, polypropylene, silicone rubber, a compatibilizer, optional solvent oil, optional inorganic filler, a vulcanizing agent and an antioxidant, wherein the compatibilizer is siloxane grafted ethylene propylene diene monomer. The ethylene propylene diene monomer/polypropylene thermoplastic elastomer material has excellent high temperature resistance and ageing resistance.
Description
Technical Field
The invention relates to the field of thermoplastic elastomer materials, in particular to an ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition, an ethylene propylene diene monomer/polypropylene thermoplastic elastomer and a preparation method and application thereof.
Background
Ethylene propylene diene monomer/polypropylene thermoplastic elastomer (EPDM/PP TPV) materials are thermoplastic elastomers which have been the earliest market, have good physical properties, can be processed by adopting thermoplastic processing equipment and technology, and are widely applied to industries such as household appliances, wires and cables, buildings, automobiles and the like. Along with the continuous expansion of application range, the EPDM/PP TPV is used as the third-generation rubber to gradually replace the traditional rubber, but the high-temperature resistance is inferior to that of the ethylene propylene rubber, so that the high-temperature resistance requirement is difficult to meet when the working temperature is higher than 90 ℃, and the application of the EPDM/PP TPV is limited.
Disclosure of Invention
The invention aims to solve the problem of insufficient high temperature resistance of the existing EPDM/PP TPV, and provides an ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition, an ethylene propylene diene monomer/polypropylene thermoplastic elastomer and a preparation method and application thereof. The ethylene propylene diene monomer/polypropylene thermoplastic elastomer material has excellent high-temperature resistance and ageing resistance, and particularly, the ethylene propylene diene monomer/polypropylene thermoplastic elastomer material can still keep excellent performance in a high-temperature environment of more than 105 ℃.
In order to achieve the above object, the first aspect of the present invention provides an ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition, wherein the composition contains ethylene propylene diene monomer, polypropylene, silicone rubber, a compatibilizer, optional solvent oil, optional inorganic filler, a vulcanizing agent and an antioxidant, wherein the compatibilizer is siloxane grafted ethylene propylene diene monomer.
Preferably, the composition contains 10 to 70 parts by weight of ethylene propylene diene monomer rubber, 10 to 60 parts by weight of polypropylene, 1 to 20 parts by weight of silicone rubber, 1 to 3 parts by weight of compatibilizer, 0 to 60 parts by weight of solvent oil, 0 to 20 parts by weight of inorganic filler, 0.1 to 5 parts by weight of vulcanizing agent and 0.1 to 2 parts by weight of antioxidant based on 100 parts by weight of the composition; preferably, the composition contains 20-60 parts by weight of ethylene propylene diene monomer rubber, 10-50 parts by weight of polypropylene, 2-15 parts by weight of silicone rubber, 1-2.5 parts by weight of compatibilizer, 10-40 parts by weight of solvent oil, 5-15 parts by weight of inorganic filler, 0.5-3 parts by weight of vulcanizing agent and 0.2-1 part by weight of antioxidant; more preferably, the composition contains 20-40 parts by weight of ethylene propylene diene monomer rubber, 10-20 parts by weight of polypropylene, 3-8 parts by weight of silicone rubber, 1-2 parts by weight of compatibilizer, 30-40 parts by weight of solvent oil, 10-15 parts by weight of inorganic filler, 0.5-2.1 parts by weight of vulcanizing agent and 0.2-0.6 parts by weight of antioxidant.
Preferably, the ethylene-propylene-diene monomer rubber contains 40-70 wt% of ethylene structural units and 4-10 wt% of third monomers based on the total weight of the ethylene-propylene-diene monomer rubber.
Preferably, the third monomer is one or more of 1, 4-hexadiene, dicyclopentadiene and 5-ethylidene-2-norbornene.
Preferably, the polypropylene is homo-polypropylene and/or random co-polypropylene.
Preferably, the silicone rubber is methyl vinyl silicone rubber.
Preferably, the siloxane grafting rate of the siloxane grafted ethylene propylene diene monomer rubber is 1-5%; more preferably, the silicone grafting ethylene propylene diene monomer rubber has a silicone grafting ratio of 1-3%.
Preferably, the siloxane has the formula y (CH 2 ) n Si(OR) 3 Wherein y is vinyl, amino, epoxy or methacryloxy, R is-CH 3 or/and-C 2 H 5 N=1 to 5, more preferably 3.
Preferably, the solvent oil is an environment-friendly paraffin oil.
Preferably, the inorganic filler is one or more of white carbon black, calcium carbonate and talcum powder, and more preferably white carbon black.
Preferably, the vulcanizing agent is a peroxide vulcanizing agent.
Preferably, the vulcanizing agent is one or more of dibenzoyl peroxide, 1-bis (t-butylperoxy) -3, 5-trimethylcyclohexane and t-butyl peroxyisopropyl carbonate, more preferably t-butyl peroxyisopropyl carbonate.
Preferably, the antioxidant is at least one of an amine antioxidant, a quinoline antioxidant and a benzimidazole antioxidant.
Preferably, the composition further comprises a release agent and/or other components of an anti-uv agent.
Preferably, the content of the other components is 0.3 to 0.4 parts by weight based on 100 parts by weight of the composition.
According to a second aspect of the present invention there is provided an ethylene propylene diene monomer/polypropylene thermoplastic elastomer formed from the ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition of the first aspect of the present invention.
According to a third aspect of the present invention, there is provided a process for the preparation of an ethylene propylene diene monomer/polypropylene thermoplastic elastomer, wherein the process uses an ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition according to the first aspect of the present invention, comprising the steps of:
1) Extruding and granulating the ethylene propylene diene monomer, the polypropylene, the silicone rubber, the compatibilizer, the optional solvent oil, the optional inorganic filler and the antioxidant to obtain rubber-plastic blending master batch;
2) And (3) dynamically vulcanizing the rubber-plastic blending master batch obtained in the step (1) and the vulcanizing agent.
Preferably, the dynamic vulcanization comprises: and respectively feeding the rubber-plastic blending master batch and the vulcanizing agent into a double-screw extruder for dynamic vulcanization, and extruding and granulating.
Preferably, the conditions of the dynamic vulcanization include: the temperature of dynamic vulcanization is 190-200 ℃, the time of dynamic vulcanization is 2-3min, and the rotating speed is 200-300rpm.
According to a fourth aspect of the present invention, there is provided an ethylene propylene diene monomer/polypropylene thermoplastic elastomer prepared by the method for preparing an ethylene propylene diene monomer/polypropylene thermoplastic elastomer according to the third aspect of the present invention.
According to a fifth aspect of the present invention there is provided the use of the thermoplastic elastomer according to the second or fourth aspect of the present invention in the manufacture of a wire or cable, a building material, an automobile or a household appliance.
Through the technical scheme, the ethylene propylene diene monomer/polypropylene thermoplastic elastomer material has excellent high temperature resistance and aging resistance, and particularly, the ethylene propylene diene monomer/polypropylene thermoplastic elastomer material can still maintain excellent performance in a high-temperature environment with the temperature of more than 105 ℃.
Detailed Description
The endpoints and any values of the ranges disclosed herein are not limited to the precise range or value, and are understood to encompass values approaching those ranges or values. For numerical ranges, one or more new numerical ranges may be found between the endpoints of each range, between the endpoint of each range and the individual point value, and between the individual point value, in combination with each other, and are to be considered as specifically disclosed herein.
According to a first aspect of the present invention there is provided an ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition, wherein the composition comprises ethylene propylene diene monomer, polypropylene, silicone rubber, a compatibilizer, optionally a solvent oil, optionally an inorganic filler, a vulcanizing agent and an antioxidant, wherein the compatibilizer is a silicone grafted ethylene propylene diene monomer.
In the invention, based on 100 weight parts of the composition, the composition contains 10-70 weight parts of ethylene propylene diene monomer, 10-60 weight parts of polypropylene, 1-20 weight parts of silicone rubber, 1-3 weight parts of compatibilizer, 0-60 weight parts of solvent oil, 0-20 weight parts of inorganic filler, 0.1-5 weight parts of vulcanizing agent and 0.1-2 weight parts of antioxidant; preferably, the composition contains 20-60 parts by weight of ethylene propylene diene monomer rubber, 10-50 parts by weight of polypropylene, 2-15 parts by weight of silicone rubber, 1-2.5 parts by weight of compatibilizer, 10-40 parts by weight of solvent oil, 5-15 parts by weight of inorganic filler, 0.5-3 parts by weight of vulcanizing agent and 0.2-1 part by weight of antioxidant; more preferably, the composition contains 20-40 parts by weight of ethylene propylene diene monomer rubber, 10-20 parts by weight of polypropylene, 3-8 parts by weight of silicone rubber, 1-2 parts by weight of compatibilizer, 30-40 parts by weight of solvent oil, 10-15 parts by weight of inorganic filler, 0.5-2.1 parts by weight of vulcanizing agent and 0.2-0.6 parts by weight of antioxidant.
Specific examples of the content of the ethylene propylene diene monomer include: 10 parts by weight, 11 parts by weight, 12 parts by weight, 13 parts by weight, 14 parts by weight, 15 parts by weight, 16 parts by weight, 17 parts by weight, 18 parts by weight, 19 parts by weight, 20 parts by weight, 21 parts by weight, 22 parts by weight, 23 parts by weight, 24 parts by weight, 25 parts by weight, 26 parts by weight, 27 parts by weight, 28 parts by weight, 29 parts by weight, 30 parts by weight, 31 parts by weight, 32 parts by weight, 33 parts by weight, 34 parts by weight, 35 parts by weight, 3 parts by weight, 37 parts by weight, 38 parts by weight, 39 parts by weight, 40 parts by weight, 41 parts by weight, 42 parts by weight, 43 parts by weight, 44 parts by weight, 45 parts by weight, 46 parts by weight, 47 parts by weight, 48 parts by weight, 49 parts by weight, 50 parts by weight, 51 parts by weight, 52 parts by weight, 53 parts by weight, 54 parts by weight, 55 parts by weight, 56 parts by weight, 57 parts by weight, 58 parts by weight, 59 parts by weight, 60 parts by weight, 61 parts by weight, 62 parts by weight, 63 parts by weight, 64 parts by weight, 65 parts by weight, 66 parts by weight, 67 parts by weight, 69 parts by weight, 68 parts by weight, 70 parts by weight, and the like.
Specific examples of the content of the polypropylene include: 10 parts by weight, 11 parts by weight, 12 parts by weight, 13 parts by weight, 14 parts by weight, 15 parts by weight, 16 parts by weight, 17 parts by weight, 18 parts by weight, 19 parts by weight, 20 parts by weight, 21 parts by weight, 22 parts by weight, 23 parts by weight, 24 parts by weight, 25 parts by weight, 26 parts by weight, 27 parts by weight, 28 parts by weight, 29 parts by weight, 30 parts by weight, 31 parts by weight, 32 parts by weight, 33 parts by weight, 34 parts by weight, 35 parts by weight, 3 parts by weight, 37 parts by weight, 38 parts by weight, 39 parts by weight, 40 parts by weight, 41 parts by weight, 42 parts by weight, 43 parts by weight, 44 parts by weight, 45 parts by weight, 46 parts by weight, 47 parts by weight, 48 parts by weight, 49 parts by weight, 50 parts by weight, 51 parts by weight, 52 parts by weight, 53 parts by weight, 54 parts by weight, 55 parts by weight, 56 parts by weight, 57 parts by weight, 58 parts by weight, 59 parts by weight, 60 parts by weight, and the like.
Specific examples of the content of the silicone rubber include: 1 part by weight, 2 parts by weight, 3 parts by weight, 4 parts by weight, 5 parts by weight, 6 parts by weight, 7 parts by weight, 8 parts by weight, 9 parts by weight, 10 parts by weight, 11 parts by weight, 12 parts by weight, 13 parts by weight, 14 parts by weight, 15 parts by weight, 16 parts by weight, 17 parts by weight, 18 parts by weight, 19 parts by weight, 20 parts by weight, etc., and a range formed by any two of them.
Specific examples of the content of the compatibilizer include: 1 part by weight, 1.1 part by weight, 1.2 parts by weight, 1.3 parts by weight, 1.4 parts by weight, 1.5 parts by weight, 1.6 parts by weight, 1.7 parts by weight, 1.8 parts by weight, 1.9 parts by weight, 2 parts by weight, 2.1 parts by weight, 2.2 parts by weight, 2.3 parts by weight, 2.4 parts by weight, 2.5 parts by weight, 2.6 parts by weight, 2.7 parts by weight, 2.8 parts by weight, 2.9 parts by weight, 3 parts by weight, etc., and a range formed by any two of them.
Specific examples of the content of the solvent oil include: 1 part by weight, 2 parts by weight, 3 parts by weight, 4 parts by weight, 5 parts by weight, 6 parts by weight, 7 parts by weight, 8 parts by weight, 9 parts by weight, 10 parts by weight, 11 parts by weight, 12 parts by weight, 13 parts by weight, 14 parts by weight, 15 parts by weight, 16 parts by weight, 17 parts by weight, 18 parts by weight, 19 parts by weight, 20 parts by weight, 21 parts by weight, 22 parts by weight, 23 parts by weight, 24 parts by weight, 25 parts by weight, 26 parts by weight, 27 parts by weight, 28 parts by weight, 29 parts by weight, 30 parts by weight, 31 parts by weight, 32 parts by weight, 33 parts by weight, 34 parts by weight, 35 parts by weight, 3 parts by weight, 37 parts by weight, 38 parts by weight, 39 parts by weight, 40 parts by weight, 41 parts by weight, 42 parts by weight, 43 parts by weight, 44 parts by weight, 45 parts by weight, 46 parts by weight, 47 parts by weight, 48 parts by weight, 49 parts by weight, 50 parts by weight, 51 parts by weight, 52 parts by weight, 53 parts by weight, 54 parts by weight, 55 parts by weight, 56 parts by weight, 57 parts by weight, 58 parts by weight, 60 parts by weight, 59, and the like.
Specific examples of the content of the inorganic filler include: 1 part by weight, 2 parts by weight, 3 parts by weight, 4 parts by weight, 5 parts by weight, 6 parts by weight, 7 parts by weight, 8 parts by weight, 9 parts by weight, 10 parts by weight, 11 parts by weight, 12 parts by weight, 13 parts by weight, 14 parts by weight, 15 parts by weight, 16 parts by weight, 17 parts by weight, 18 parts by weight, 19 parts by weight, 20 parts by weight, etc., and a range formed by any two of them.
Specific examples of the content of the vulcanizing agent include: 0.1 part by weight, 0.2 part by weight, 0.3 part by weight, 0.4 part by weight, 0.5 part by weight, 0.6 part by weight, 0.7 part by weight, 0.8 part by weight, 0.9 part by weight, 1 part by weight, 1.1 part by weight, 1.2 part by weight, 1.3 part by weight, 1.4 part by weight, 1.5 part by weight, 1.6 part by weight, 1.7 part by weight, 1.8 part by weight, 1.9 part by weight, 2 part by weight, 2.1 part by weight, 2.2 part by weight, 2.3 part by weight, 2.4 part by weight, 2.5 part by weight, 2.6 part by weight, 2.7 part by weight, 2.8 part by weight, 2.9 part by weight, 3 part by weight, 3.1 part by weight, 3.2 part by weight, 3.3 part by weight, 4 part by weight, 4.5 part by weight, 3.7 part by weight, 4.4 part by weight, 4.4.5 part by weight, 4.6 part by weight, 4.7 part by weight, 4.8 part by weight, 4, and any two of them.
Specific examples of the content of the antioxidant include: 0.1 part by weight, 0.2 part by weight, 0.3 part by weight, 0.4 part by weight, 0.5 part by weight, 0.6 part by weight, 0.7 part by weight, 0.8 part by weight, 0.9 part by weight, 1 part by weight, 1.1 part by weight, 1.2 part by weight, 1.3 part by weight, 1.4 part by weight, 1.5 part by weight, 1.6 part by weight, 1.7 part by weight, 1.8 part by weight, 1.9 part by weight, 2 parts by weight, and the like, and a range formed by any two values thereof.
According to the invention, the ethylene propylene diene monomer can be various ethylene propylene diene monomer rubbers commonly used in the field, for example, the ethylene propylene diene monomer rubber has the content of ethylene structural units of 50-70 wt% and the content of the third monomer of 4-6 wt% based on the total weight of the ethylene propylene diene monomer rubber; the weight average molecular weight of the ethylene propylene diene monomer can be 10 ten thousand to 40 ten thousand; the third monomer may be various third monomers commonly used in the art, and may be, for example, one or more of 1, 4-hexadiene, dicyclopentadiene (DCPD) and 5-ethylidene-2-norbornene, preferably 5-ethylidene-2-norbornene (ENB).
According to the invention, the polypropylene is homo-and/or random co-polypropylene, the melt index of which at 230 ℃ under a load of 2.16kg is 1-20g/10min. In order to be able to further improve the mechanical properties of the vulcanizate, it is preferred that the comonomer of the random copolymer polypropylene is ethylene.
According to the present invention, the silicone rubber may be a rubber having a main chain composed of silicon and oxygen atoms alternately, and the silicon atoms are usually bonded with two organic groups. Preferably, the silicone rubber is methyl vinyl silicone rubber (MVQ).
According to the invention, in view of the compatibilizing effect, preferably, the silicone grafting ratio in the silicone grafted ethylene propylene diene monomer is 1-5%; more preferably, the silicone grafting ethylene propylene diene monomer rubber has a silicone grafting ratio of 1-3%.
Preferably, the siloxane has the formula y (CH 2 ) n Si(OR) 3 Wherein y is vinyl, amino, epoxy or methacryloxy, preferably vinyl; r is-CH 3 or/and-C 2 H 5 preferably-C 2 H 5 The method comprises the steps of carrying out a first treatment on the surface of the n=1 to 5, preferably 3.
Specific examples of such a siloxane include: c (C) 2 H 3 CH 2 Si(OC 2 H 5 ) 3 、C 2 H 3 (CH 2 ) 2 Si(OC 2 H 5 ) 3 、C 2 H 3 (CH 2 ) 3 Si(OC 2 H 5 ) 3 、C 2 H 3 (CH 2 ) 4 Si(OC 2 H 5 ) 3 、C 2 H 3 (CH 2 ) 5 Si(OC 2 H 5 ) 3 、C 2 H 3 CH 2 Si(OCH 3 ) 3 、C 2 H 3 (CH 2 ) 2 Si(OCH 3 ) 3 、C 2 H 3 (CH 2 ) 3 Si(OCH 3 ) 3 、C 2 H 3 (CH 2 ) 4 Si(OCH 3 ) 3 、C 2 H 3 (CH 2 ) 5 Si(OCH 3 ) 3 Etc.
In the invention, the siloxane grafted ethylene propylene diene monomer can be prepared according to a conventional synthesis method in the field. For example, the silicone grafted ethylene propylene diene monomer may be obtained by contacting ethylene propylene diene monomer, silicone and an initiator.
In a preferred embodiment of the invention, the ethylene propylene diene monomer, the siloxane and the initiator are fed into a double screw extruder for melt extrusion and grafting is completed at the same time, so that the siloxane grafted ethylene propylene diene monomer is obtained.
In the above embodiment, the siloxane may be used in an amount of 2 to 4 parts by weight and the initiator may be used in an amount of 0.2 to 0.4 parts by weight, based on 100 parts by weight of the ethylene propylene diene monomer; preferably, the siloxane may be used in an amount of 3 to 4 parts by weight and the initiator may be used in an amount of 0.3 to 0.4 part by weight, based on 100 parts by weight of the ethylene propylene diene monomer.
As the initiator, various reagents for peroxide crosslinking which are generally used in the art can be used, and preferably, the initiator is at least one of dicumyl peroxide (DCP), benzoyl peroxide, t-butyl peroxybenzoate, dicumyl peroxide and di-t-butyl peroxide; more preferably, the initiator is dicumyl peroxide.
In addition, after the silicone grafted ethylene propylene diene monomer is obtained by melt extrusion, the silicone grafted ethylene propylene diene monomer obtained by melt grafting may also be pelletized. Granulation may be carried out by methods usual in the art, for example, granulation using an underwater pelletizer may be used.
In the present invention, the ethylene propylene diene monomer used in the preparation of the silicone grafted ethylene propylene diene monomer is preferably the same as the ethylene propylene diene monomer used in the ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition.
According to the present invention, preferably, the solvent oil is an environmental protection type paraffin oil.
According to the present invention, the addition of the inorganic filler has the effect of further improving reinforcement. Preferably, the inorganic filler can be one or more of white carbon black, calcium carbonate and talcum powder; more preferably, the inorganic filler is white carbon black.
According to the present invention, preferably, the vulcanizing agent is a peroxide vulcanizing agent; more preferably, the vulcanizing agent is one or more of dibenzoyl peroxide, 1-bis (t-butylperoxy) -3, 5-trimethylcyclohexane and t-butyl peroxyisopropyl carbonate; further preferably, the vulcanizing agent is tert-butyl peroxyisopropyl carbonate.
According to the invention, the antioxidant can be one or more of amine antioxidants, quinoline antioxidants and benzimidazole antioxidants. Specifically, the amine antioxidant is a naphthylamine antioxidant and/or a p-phenylenediamine antioxidant. More specifically, the naphthylamine antioxidant is naphthylamine and its derivatives; the p-phenylenediamine antioxidant is p-phenylenediamine and derivatives thereof; the quinoline antioxidant is quinoline and derivatives thereof, such as 2, 4-trimethyl-1, 2-dihydroquinoline; the benzimidazole antioxidant is benzimidazole and its derivatives, such as 2-mercaptobenzimidazole. Further preferably, the antioxidant is pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate (antioxidant 1010).
According to the present invention, the composition of the present invention preferably further contains other components such as a release agent and/or an ultraviolet inhibitor within a range that does not affect the effects of the present invention.
The content of the other components may be that commonly used in the art, for example, 0.3 to 0.4 parts by weight based on 100 parts by weight of the composition.
According to a second aspect of the present invention there is provided an ethylene propylene diene monomer/polypropylene thermoplastic elastomer formed from the ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition of the first aspect of the present invention.
The method of molding the ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition of the present invention into the ethylene propylene diene monomer/polypropylene thermoplastic elastomer of the present invention is not particularly limited, and can be carried out using various molding equipment and molding conditions commonly used in the art.
According to a third aspect of the present invention, there is provided a process for the preparation of an ethylene propylene diene monomer/polypropylene thermoplastic elastomer, wherein the process uses an ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition according to the first aspect of the present invention, comprising the steps of:
1) Extruding and granulating the ethylene propylene diene monomer, the polypropylene, the silicone rubber, the compatibilizer, the optional solvent oil, the optional inorganic filler and the antioxidant to obtain rubber-plastic blending master batch;
2) And (3) dynamically vulcanizing the rubber-plastic blending master batch obtained in the step (1) and the vulcanizing agent.
According to the invention, preferably, in the step 1), the ethylene propylene diene monomer, the polypropylene, the silicone rubber, the compatibilizer, the optional solvent oil, the optional inorganic filler and the antioxidant are fed into a double-screw extruder to be extruded, so as to obtain the rubber-plastic blending master batch. Here, the twin-screw extruder may have a temperature of 170 to 200℃and a rotational speed of 200 to 300rpm and a residence time of 1 to 2 minutes.
According to the invention, preferably, in step 2), the dynamic vulcanization comprises: and respectively feeding the rubber-plastic blending master batch and the vulcanizing agent into a double-screw extruder for dynamic vulcanization, and extruding and granulating.
Preferably, the conditions of the dynamic vulcanization include: the temperature of dynamic vulcanization is 190-200 ℃, the time of dynamic vulcanization is 2-3min, and the rotating speed is 200-300rpm.
In a particularly preferred embodiment of the invention, the ethylene propylene diene monomer/polypropylene thermoplastic elastomer is prepared according to a process,
1) Feeding the ethylene propylene diene monomer, the polypropylene, the silicone rubber, the compatibilizer, the optional solvent oil, the optional inorganic filler and the antioxidant into a double-screw extruder for extrusion to obtain the rubber-plastic blending master batch, wherein the temperature of the double-screw extruder is 170-200 ℃, the rotating speed is 200-300rpm, and the residence time is 1-2min;
2) Respectively feeding the rubber-plastic blending master batch and the vulcanizing agent into a double-screw extruder for dynamic vulcanization, and extruding and granulating; wherein the conditions of dynamic vulcanization include: a twin-screw extruder phi=35 mm L/d=64; the dynamic vulcanization temperature is 190-200 ℃; the dynamic vulcanization time is 2-3min; the rotation speed is 200-300rpm.
According to a fourth aspect of the present invention, there is provided an ethylene propylene diene monomer/polypropylene thermoplastic elastomer prepared by the method for preparing an ethylene propylene diene monomer/polypropylene thermoplastic elastomer according to the third aspect of the present invention.
According to a fifth aspect of the present invention there is provided the use of the thermoplastic elastomer according to the second or fourth aspect of the present invention in the manufacture of a wire or cable, a building material, an automobile or a household appliance.
According to the ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition and the thermoplastic elastomer prepared by the composition, the silicone grafted ethylene propylene diene monomer compatibilizer is combined with other components in the composition, so that the high-viscosity-ratio ethylene propylene diene monomer/polypropylene interfacial compatibility is improved, the ageing resistance of the prepared EPDM/PP TPV is greatly improved, and the temperature resistance is greatly improved, so that the application range of the EPDM/PP TPV material is greatly widened, and the composition can be widely applied to the industries of wires and cables, building materials, automobiles, household appliances and the like.
The present invention will be described in detail by way of examples, but the present invention is not limited to the following examples.
In the following preparation examples, the grafting ratio was measured by the following methods.
The silicon atom content in the sample was measured using an inductively coupled plasma emission spectrometer (VISTA-AX, usa), the silicon content in the sample was calculated from the measured silicon atom content, and the siloxane content (i.e., the grafting ratio) in the sample was found from the silicon content.
Preparation examples 1 to 5
Preparation examples 1 to 5A silicone grafted ethylene propylene diene monomer (hereinafter also referred to as EPDM-g-S) was prepared according to the following preparation method and the amounts shown in Table 1.
Ethylene propylene diene monomer (3092 EPM, shanghai Gao Qiao petrochemical) and C 2 H 3 (CH 2 ) 3 Si(OC 2 H 5 ) 3 (commercially available) and dicumyl peroxide (DCP, commercially available) were added in a compounding ratio to a twin screw extruder (STS 35, nanjac ploon) for melt extrusion while grafting was completed to obtain EPDM-g-S (the grafting ratio is also shown in Table 1), and the EPDM-g-S obtained by melt grafting was pelletized by an underwater pelletizer to obtain EPDM-g-S compatibilizers A1-A4.
TABLE 1
Examples 1-12 and comparative examples 1-2
Examples 1-12 ethylene propylene diene monomer/polypropylene thermoplastic elastomers were prepared according to the following preparation methods and the amounts shown in table 2, and comparative examples 1-2 were additionally provided. Wherein examples 1, 6, 11 and 12 used EPDM-g-S compatibilizer A1, examples 2 and 7 used EPDM-g-S compatibilizer A2, examples 3 and 8 used EPDM-g-S compatibilizer A3, examples 4-5 and 9-10 used EPDM-g-S compatibilizer A4, the preparation method was:
1) EPDM-g-S particles, ethylene propylene diene monomer (EPDM, 3092EPM, shanghai Gao Qiao petrochemical industry), MVQ (110-2, morning photo chemical industry), PP, environment-friendly paraffin oil (Yongzhen oil), inorganic filler (white carbon black, commercially available) and antioxidant (215, smoke table new and elegant chemistry) are added into a double-screw extruder (STS 35, nanjac plong) according to the proportion to be extruded to prepare rubber-plastic blending master batches, wherein the temperature of the double-screw extruder is 180 ℃, the rotating speed is 200rpm, and the residence time is 2min.
2) And (3) adding the rubber-plastic master batch and a vulcanizing agent (BIBP, acomat) into a double-screw extruder according to a proportion for dynamic vulcanization, and extruding and granulating to obtain the ethylene propylene diene monomer/polypropylene TPV master batch. The dynamic vulcanization process conditions are as follows: phi=35 mm L/d=56 for a twin-screw extruder; dynamic vulcanization temperature is 200 ℃; dynamic vulcanization time is 2.5min; the rotation speed was 300rpm.
TABLE 2
Test case
The following mechanical properties were measured using the dynamically vulcanized ethylene propylene diene monomer/polypropylene thermoplastic elastomer particles in examples 1 to 12 and comparative examples 1 to 2, and the results are shown in Table 3.
Tensile strength and elongation at break were measured according to ASTM D412, at a tensile rate of 500mm/min.
TABLE 3 Table 3
It can be seen from the combination of table 1 and table 2 that the EPDM-g-S compatibilizer prepared by melt grafting modification in the examples improves the interfacial compatibility of EPDM/SVQ with high viscosity, and the ageing resistance and the temperature resistance of the prepared EPDM/PP TPV are greatly improved, so that the application range of the EPDM/PP TPV material is greatly widened, and the EPDM/PP TPV can be widely applied to industries such as wires and cables, building materials, automobiles, home appliances and the like.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of the individual technical features in any other suitable way, which simple variants and combinations should likewise be regarded as being disclosed by the invention, all falling within the scope of protection of the invention.
Claims (16)
1. The ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition is characterized by comprising ethylene propylene diene monomer, polypropylene, silicone rubber, a compatibilizer, optional solvent oil, optional inorganic filler, a vulcanizing agent and an antioxidant, wherein the compatibilizer is siloxane grafted ethylene propylene diene monomer.
2. The composition according to claim 1, wherein the composition comprises 10 to 70 parts by weight of ethylene propylene diene monomer rubber, 10 to 60 parts by weight of polypropylene, 1 to 20 parts by weight of silicone rubber, 1 to 3 parts by weight of compatibilizer, 0 to 60 parts by weight of solvent oil, 0 to 20 parts by weight of inorganic filler, 0.1 to 5 parts by weight of vulcanizing agent, and 0.1 to 2 parts by weight of antioxidant based on 100 parts by weight of the composition;
preferably, the composition contains 20-60 parts by weight of ethylene propylene diene monomer rubber, 10-50 parts by weight of polypropylene, 2-15 parts by weight of silicone rubber, 1-2.5 parts by weight of compatibilizer, 10-40 parts by weight of solvent oil, 5-15 parts by weight of inorganic filler, 0.5-3 parts by weight of vulcanizing agent and 0.2-1 part by weight of antioxidant; more preferably, the composition contains 20-40 parts by weight of ethylene propylene diene monomer rubber, 10-20 parts by weight of polypropylene, 3-8 parts by weight of silicone rubber, 1-2 parts by weight of compatibilizer, 30-40 parts by weight of solvent oil, 10-15 parts by weight of inorganic filler, 0.5-2.1 parts by weight of vulcanizing agent and 0.2-0.6 parts by weight of antioxidant.
3. The composition according to claim 1, wherein the ethylene structural unit content in the ethylene propylene diene monomer is 40-70 wt% and the third monomer content is 4-10 wt%, based on the total weight of the ethylene propylene diene monomer;
preferably, the third monomer is one or more of 1, 4-hexadiene, dicyclopentadiene and 5-ethylidene-2-norbornene.
4. A composition according to any one of claims 1-3, wherein the polypropylene is homo-and/or random co-polypropylene;
preferably, the silicone rubber is methyl vinyl silicone rubber.
5. A composition according to any one of claims 1 to 3, wherein the silicone graft ethylene propylene diene monomer rubber has a silicone grafting ratio of 1 to 5%;
preferably, the siloxane grafting rate of the siloxane grafted ethylene propylene diene monomer rubber is 1-3%;
preferably, the siloxane has the formula y (CH 2 ) n Si(OR) 3 Wherein y is vinyl, amino, epoxy or methacryloxy, R is-CH 3 or/and-C 2 H 5 N=1 to 5, preferably 3.
6. A composition according to any one of claims 1 to 3, wherein the mineral spirits are environmental protection paraffinic oils.
7. A composition according to any one of claims 1 to 3, wherein the inorganic filler is one or more of white carbon, calcium carbonate and talc, preferably white carbon.
8. A composition according to any one of claims 1 to 3, wherein the vulcanizing agent is a peroxide vulcanizing agent;
preferably, the vulcanizing agent is one or more of dibenzoyl peroxide, 1-bis (t-butylperoxy) -3, 5-trimethylcyclohexane and t-butyl peroxyisopropyl carbonate, more preferably t-butyl peroxyisopropyl carbonate.
9. A composition according to any one of claims 1 to 3, wherein the antioxidant is at least one of an amine antioxidant, a quinoline antioxidant and a benzimidazole antioxidant.
10. A composition according to any one of claims 1 to 3, wherein the composition further comprises a release agent and/or other components of an anti-uv agent;
preferably, the content of the other components is 0.3 to 0.4 parts by weight based on 100 parts by weight of the composition.
11. An ethylene propylene diene monomer/polypropylene thermoplastic elastomer formed from the ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition of any one of claims 1-10.
12. A process for the preparation of an ethylene propylene diene monomer/polypropylene thermoplastic elastomer, characterized in that it uses an ethylene propylene diene monomer/polypropylene thermoplastic elastomer composition according to any one of claims 1 to 10, comprising the steps of:
1) Extruding and granulating the ethylene propylene diene monomer, the polypropylene, the silicone rubber, the compatibilizer, the optional solvent oil, the optional inorganic filler and the antioxidant to obtain rubber-plastic blending master batch;
2) And (3) dynamically vulcanizing the rubber-plastic blending master batch obtained in the step (1) and the vulcanizing agent.
13. The method of claim 12, wherein the dynamic vulcanization comprises: and respectively feeding the rubber-plastic blending master batch and the vulcanizing agent into a double-screw extruder for dynamic vulcanization, and extruding and granulating.
14. The method of claim 13, wherein the conditions of dynamic vulcanization comprise: the temperature of dynamic vulcanization is 190-200 ℃, the time of dynamic vulcanization is 2-3min, and the rotating speed is 200-300rpm.
15. An ethylene propylene diene monomer/polypropylene thermoplastic elastomer prepared by the method for preparing an ethylene propylene diene monomer/polypropylene thermoplastic elastomer according to any one of claims 12 to 14.
16. Use of the thermoplastic elastomer according to claim 11 or 15 for the preparation of wires and cables, building materials, automobiles or household appliances.
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