CN114106451A - Ethylene-vinyl acetate copolymer EVA refrigerator door seal particle and preparation method thereof - Google Patents
Ethylene-vinyl acetate copolymer EVA refrigerator door seal particle and preparation method thereof Download PDFInfo
- Publication number
- CN114106451A CN114106451A CN202111610299.9A CN202111610299A CN114106451A CN 114106451 A CN114106451 A CN 114106451A CN 202111610299 A CN202111610299 A CN 202111610299A CN 114106451 A CN114106451 A CN 114106451A
- Authority
- CN
- China
- Prior art keywords
- ethylene
- vinyl acetate
- refrigerator door
- door seal
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000005038 ethylene vinyl acetate Substances 0.000 title claims abstract description 54
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 title claims abstract description 54
- 239000002245 particle Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 51
- -1 Polyethylene Polymers 0.000 claims abstract description 28
- 239000004698 Polyethylene Substances 0.000 claims abstract description 22
- 229920000573 polyethylene Polymers 0.000 claims abstract description 22
- 239000004743 Polypropylene Substances 0.000 claims abstract description 19
- 229920001155 polypropylene Polymers 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 239000002667 nucleating agent Substances 0.000 claims abstract description 16
- 239000004088 foaming agent Substances 0.000 claims abstract description 15
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 11
- 238000005187 foaming Methods 0.000 claims abstract description 11
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 9
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 9
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 9
- 239000000314 lubricant Substances 0.000 claims abstract description 9
- 239000012764 mineral filler Substances 0.000 claims abstract description 8
- 239000000049 pigment Substances 0.000 claims abstract description 8
- 238000000227 grinding Methods 0.000 claims abstract description 7
- 238000004132 cross linking Methods 0.000 claims abstract description 5
- 238000005303 weighing Methods 0.000 claims abstract description 5
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims abstract description 3
- 230000003449 preventive effect Effects 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- 229920001684 low density polyethylene Polymers 0.000 claims description 6
- 239000004702 low-density polyethylene Substances 0.000 claims description 6
- 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 claims description 4
- 239000004342 Benzoyl peroxide Substances 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
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 4
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-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
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 claims description 4
- 239000012965 benzophenone Substances 0.000 claims description 4
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 229920001912 maleic anhydride grafted polyethylene Polymers 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- MUTGBJKUEZFXGO-OLQVQODUSA-N (3as,7ar)-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione Chemical compound C1CCC[C@@H]2C(=O)OC(=O)[C@@H]21 MUTGBJKUEZFXGO-OLQVQODUSA-N 0.000 claims description 2
- OTKCEEWUXHVZQI-UHFFFAOYSA-N 1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(=O)CC1=CC=CC=C1 OTKCEEWUXHVZQI-UHFFFAOYSA-N 0.000 claims description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 claims description 2
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 2
- YEECOJZAMZEUBB-UHFFFAOYSA-N 2,2,3,3,6,6,7,7-octamethyloctane Chemical compound CC(C)(C)C(C)(C)CCC(C)(C)C(C)(C)C YEECOJZAMZEUBB-UHFFFAOYSA-N 0.000 claims description 2
- ZXDDPOHVAMWLBH-UHFFFAOYSA-N 2,4-Dihydroxybenzophenone Chemical compound OC1=CC(O)=CC=C1C(=O)C1=CC=CC=C1 ZXDDPOHVAMWLBH-UHFFFAOYSA-N 0.000 claims description 2
- DZZAHLOABNWIFA-UHFFFAOYSA-N 2-butoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(OCCCC)C(=O)C1=CC=CC=C1 DZZAHLOABNWIFA-UHFFFAOYSA-N 0.000 claims description 2
- KMNCBSZOIQAUFX-UHFFFAOYSA-N 2-ethoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(OCC)C(=O)C1=CC=CC=C1 KMNCBSZOIQAUFX-UHFFFAOYSA-N 0.000 claims description 2
- ZCUJYXPAKHMBAZ-UHFFFAOYSA-N 2-phenyl-1h-imidazole Chemical compound C1=CNC(C=2C=CC=CC=2)=N1 ZCUJYXPAKHMBAZ-UHFFFAOYSA-N 0.000 claims description 2
- FUOZJYASZOSONT-UHFFFAOYSA-N 2-propan-2-yl-1h-imidazole Chemical compound CC(C)C1=NC=CN1 FUOZJYASZOSONT-UHFFFAOYSA-N 0.000 claims description 2
- ULKLGIFJWFIQFF-UHFFFAOYSA-N 5K8XI641G3 Chemical compound CCC1=NC=C(C)N1 ULKLGIFJWFIQFF-UHFFFAOYSA-N 0.000 claims description 2
- UAUDZVJPLUQNMU-UHFFFAOYSA-N Erucasaeureamid Natural products CCCCCCCCC=CCCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-UHFFFAOYSA-N 0.000 claims description 2
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 2
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 2
- 244000028419 Styrax benzoin Species 0.000 claims description 2
- 235000000126 Styrax benzoin Nutrition 0.000 claims description 2
- 235000008411 Sumatra benzointree Nutrition 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- 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 claims description 2
- RAWPGIYPSZIIIU-UHFFFAOYSA-N [benzoyl(phenyl)phosphoryl]-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)P(=O)(C=1C=CC=CC=1)C(=O)C1=CC=CC=C1 RAWPGIYPSZIIIU-UHFFFAOYSA-N 0.000 claims description 2
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 claims description 2
- 229960002130 benzoin Drugs 0.000 claims description 2
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 2
- 229920001400 block copolymer Polymers 0.000 claims description 2
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 239000000084 colloidal system Substances 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 claims description 2
- IUNMPGNGSSIWFP-UHFFFAOYSA-N dimethylaminopropylamine Chemical compound CN(C)CCCN IUNMPGNGSSIWFP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000975 dye Substances 0.000 claims description 2
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims description 2
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 235000019382 gum benzoic Nutrition 0.000 claims description 2
- 239000001023 inorganic pigment Substances 0.000 claims description 2
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 claims description 2
- 239000012968 metallocene catalyst Substances 0.000 claims description 2
- JKBYAWVSVVSRIX-UHFFFAOYSA-N octadecyl 2-(1-octadecoxy-1-oxopropan-2-yl)sulfanylpropanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)SC(C)C(=O)OCCCCCCCCCCCCCCCCCC JKBYAWVSVVSRIX-UHFFFAOYSA-N 0.000 claims description 2
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 claims description 2
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 claims description 2
- 239000012860 organic pigment Substances 0.000 claims description 2
- 239000004209 oxidized polyethylene wax Substances 0.000 claims description 2
- 235000013873 oxidized polyethylene wax Nutrition 0.000 claims description 2
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 claims description 2
- 239000001038 titanium pigment Substances 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 10
- 238000003466 welding Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004321 preservation Methods 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 4
- 239000003112 inhibitor Substances 0.000 abstract description 2
- 238000004073 vulcanization Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000012945 sealing adhesive Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses ethylene-vinyl acetate copolymer EVA refrigerator door seal particles, which comprise ethylene-vinyl acetate copolymer (EVA), Polyethylene (PE), modified polyethylene, polypropylene (PP), modified polypropylene, ethylene-olefin copolymer (POE), mineral filler, foaming agent, nucleating agent, lubricant, antioxidant, photoinitiator, crosslinking agent, antibacterial mildew inhibitor, pigment and the like. Also discloses a preparation method of the micro-foaming EVA refrigerator door seal particle capable of being directly extruded, which comprises weighing, grinding, pre-crosslinking, mixing, banburying, extruding and granulating. Because the material is ground and pre-crosslinked and is added with the foaming agent and the nucleating agent, when the material is used for producing the refrigerator door seal, the material can be directly extruded and molded without high-temperature vulcanization and mold pressurization, and the micro-foaming refrigerator door seal material can be prepared. The product has smooth surface, contains a large amount of micro bubbles in the middle, and has high tearing strength of materials, high welding angle tension, good resilience, low temperature resistance, aging resistance, good sealing performance and good heat preservation effect.
Description
Technical Field
The invention belongs to the technical field of magnetic door seal particles for refrigerators, freezers and the like, and particularly relates to a preparation method of a micro-foaming ethylene-vinyl acetate copolymer EVA (ethylene-vinyl acetate copolymer) door seal particle capable of being directly extruded.
Background
The refrigerator door seal strip is a refrigerator accessory used for sealing between a refrigerator door body and a refrigerator body, and has the heat preservation effect, and the use performance and the energy consumption of a refrigerator are directly influenced by the sealing and heat insulation effects. Most of the current common refrigerator door seals are made of soft PVC materials or TPE materials. However, the general soft PVC material is limited by the characteristics of the material itself, and has the following problems: (1) is not environment-friendly; (2) the elasticity is poor; (3) and (5) corroding the equipment. The SEBS material is used as a base TPE material, and the SEBS material is only physically compatible with mineral oil or other oil filled with the SEBS material and does not generate chemical reaction. The oil is inevitably discharged from the material over time, and the welding strength and the sealing performance of the material are continuously reduced.
The EVA material provided by the invention is a thermoplastic material and has a plurality of excellent properties: (1) the paint is non-toxic and environment-friendly, and has good chemical stability; (2) the material has good flexibility, good elasticity and high strength; (3) the molding processability is excellent; (4) has excellent cold resistance, aging resistance and ozone resistance; (5) the specific gravity is light, and the input-output rate is high.
The invention solves the problems of environmental pollution, poor elasticity, oil production, low welding angle tension, poor sealing performance and the like of the refrigerator door sealing strip material in the current market. The material is ground and pre-crosslinked, so that the material has excellent processing performance, good cold resistance, aging resistance, good elasticity and other characteristics, and simultaneously, due to the addition of the foaming agent and the nucleating agent, micro bubbles are generated in the product, the tearing strength of the material is increased, the welding angle tension is increased, the sealing performance and the heat preservation effect are obviously improved, the surface of the material is smooth, the hand feeling is dry and comfortable, oil is not separated out, and no peculiar smell is generated.
Disclosure of Invention
The invention discloses a micro-foaming ethylene-vinyl acetate copolymer EVA refrigerator door seal particle capable of being directly extruded, which comprises ethylene-vinyl acetate copolymer (EVA), Polyethylene (PE), modified polyethylene, polypropylene (PP), modified polypropylene, ethylene octene copolymer (POE), mineral filler, foaming agent, nucleating agent, lubricant, antioxidant, photoinitiator, crosslinking agent, antibacterial mildew preventive, pigment and the like. The preparation method of the micro-foaming type EVA refrigerator door seal particle comprises weighing, grinding, mixing, banburying and granulating.
The invention discloses a micro-foaming type EVA refrigerator door seal particle capable of being directly extruded, wherein the weight ratio of the components is as follows: 10-100 parts of ethylene-vinyl acetate copolymer (EVA), 5-50 parts of Polyethylene (PE), 5-50 Parts of Polypropylene (PP), 5-50 parts of ethylene-octene copolymer (POE), 10-100 parts of mineral filler, 0.1-3 parts of foaming agent, 0.1-3 parts of nucleating agent, 0.1-3 parts of lubricant, 0.1-3.0 parts of antioxidant, 0.1-3 parts of photoinitiator, 0.1-3 parts of cross-linking agent, 0.1-2.0 parts of antibacterial mildew inhibitor and 0.1-2.0 parts of pigment.
Further, the ethylene-vinyl acetate copolymer is an ethylene-vinyl acetate copolymer with the vinyl acetate content of 15-45%.
Further, the Polyethylene (PE) is one or more of low-density polyethylene (LDPE) and linear low-density polyethylene (LLDPE), and 5-20% of maleic anhydride grafted polyethylene copolymer is added; the polypropylene (PP) is one or more of homo-polypropylene (PP-H) and block copolymer polypropylene (PP-B), and 5-20% of maleic anhydride grafted polypropylene copolymer is added; the ethylene-olefin copolymer (POE) is one or more of high polymer of ethylene and butylene or high polymer of ethylene and octene which adopts metallocene catalyst. The Polyethylene (PE) is one or more of Low Density Polyethylene (LDPE) and Linear Low Density Polyethylene (LLDPE) and is added with a part of maleic anhydride grafted polyethylene copolymer.
Further, the mineral filler is one or more of heavy calcium carbonate or light calcium carbonate; the foaming agent is one or more of azo foaming agent and zinc oxide; the nucleating agent is one or more of alpha crystal form nucleating agent or beta crystal form nucleating agent; the lubricant is one or more of erucamide, oleamide, polyethylene wax, oxidized polyethylene wax and silicone master batch; the antioxidant is one or more of pentaerythritol tetra (beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate) (1010), tris (2, 4-di-tert-butylphenyl) phosphite (168) and dioctadecyl thiodipropionate (DSTDP).
Further, the photoinitiator is one or more of benzoin dimethyl ether, benzoin ethyl ether, benzoin butyl ether, diphenylethanone, alpha-dimethoxy-alpha-phenylacetophenone, alpha-diethoxyacetophenone, alpha-hydroxyalkyl phenone, alpha-aminoalkyl phenone, bis-benzoylphenyl phosphine oxide, benzophenone and 2, 4-dihydroxy benzophenone.
Further, the crosslinking agent is one or more of dicumyl peroxide (DCP), Benzoyl Peroxide (BPO), di-tert-butyl peroxide (DTBP), Diethylenetriamine (DTA), 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide, 2-ethyl-4-methylimidazole, 2-phenylimidazole, 2-isopropylimidazole, tetra-gas phthalic anhydride, hexahydrophthalic anhydride, triethylenetetramine, dimethylaminopropylamine and vinyl triethoxysilane.
Further, the antibacterial mildew preventive is one or more of special broad-spectrum antibacterial mildew preventive for plastics; the pigment can be selected from inorganic pigment, organic pigment, dye, etc., such as one or more of phthalocyanine green, phthalocyanine blue, titanium pigment, carbon black, and ultramarine.
The invention also discloses a preparation method of the micro-foaming EVA refrigerator door seal particle, which comprises the following specific steps:
step one, weighing: the components are weighed exactly according to the parts ranges in claim 1.
Step two, grinding: adding ethylene-vinyl acetate copolymer (EVA), Polyethylene (PE), polypropylene (PP), foaming agent and nucleating agent into a colloid grinder according to a certain proportion, fully grinding until the diameter of solid is less than 1mm, and sieving with a 20-mesh sieve for later use.
Step three, pre-crosslinking: adding the ground resin powder into a horizontal mixing pot, slowly adding a photoinitiator and a crosslinking agent while slowly stirring, then placing the mixed material into a UVLED curing device (YS-UVA60M2A) in the Yunshuo lamp industry for irradiation (UV wavelength of 365-.
Step four, mixing: adding the pre-crosslinking material, the lubricant, the antioxidant, the antibacterial mildew preventive and the like into a medium-high speed mixing pot, starting the high-speed mixing pot, adding the mineral filler and the pigment into the high-speed mixing pot after 10min, and obtaining the uniformly mixed material after 10 min.
Step five, banburying: and (3) banburying the mixed materials by using an internal mixer, wherein the temperature parameter of a banburying chamber of the internal mixer is set to be 140-170 ℃, the rotating speed of a rotor of the banburying chamber is 20-60 r/min, and when the temperature of the banburying chamber reaches the set temperature, banburying well-mixed dough is obtained. The mixing time of the materials in the mixing chamber is reduced as much as possible under the condition that the materials are sufficiently plasticized.
Step six, granulation: and extruding and granulating the kneaded dough-like material in the internal mixer by an extruder, wherein the parameters of the extruder are set to be 130-150 ℃ in the first zone, 140-160 ℃ in the second zone, 150-170 ℃ in the third zone, 155-185 ℃ in the head and 30-50HZ in the host frequency, and uniform micro-foaming EVA refrigerator door seal particles are obtained from the extruder.
The invention has the following effects: compared with the prior common refrigerator door seal strip material (soft PVC material or TPE material), the material has smooth surface, dry and comfortable hand feeling, no halogen material, no plasticizer precipitation and no peculiar smell. The material is ground and pre-crosslinked, and a foaming agent and a nucleating agent are added, so that the material disclosed by the invention is high in tensile strength, tearing strength, welding angle tension, resilience, low temperature resistance, ageing resistance, sealing performance and heat preservation effect. The material disclosed by the invention is simple in preparation process, low in energy consumption and high in efficiency, and can be directly extruded and molded when used for producing the refrigerator door seal, high-temperature vulcanization is not required, and mold pressurization is not required. The material has wide market prospect and high social and economic benefits.
Detailed Description
The following examples are given to illustrate the present invention and it is necessary to point out here that the following examples are given only for the purpose of further illustration and are not to be construed as limiting the scope of the invention, which is intended to be covered by the claims of the appended claims.
Example 1
The following raw materials are used in percentage by mass:
example 2
The following raw materials are used in percentage by mass:
example 3
The following raw materials are used in percentage by mass:
example 4
The following raw materials are used in percentage by mass:
example 5
The following raw materials are used in percentage by mass:
adding a foaming agent and a nucleating agent into the resin components, fully grinding, slowly adding a photoinitiator and a crosslinking agent, adding a lubricant, an antioxidant, an antibacterial mildew preventive and the like after the materials are fully pre-crosslinked, opening a high-speed mixing pot, mixing the materials uniformly, adding the materials into an internal mixer for banburying, and adding the materials into an extruder for granulation to prepare the micro-foaming EVA refrigerator door seal particles. And extruding the granules out of a door sealing adhesive tape through an extruder, penetrating the door sealing adhesive tape into a magnetic strip, and welding to obtain the refrigerator door sealing tape. Note that when the door seal strip is extruded through the extruder, the residence time of the particles of the micro-foamed EVA refrigerator door seal in the extruder and the processing temperature of the extruder need to be controlled, so that a suitable micro-foamed EVA refrigerator door seal can be obtained.
The physical property test result of the refrigerator door seal material is as follows:
| testing | Unit of | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example |
| Tensile strength | Mpa | 17.3 | 18.1 | 17.8 | 18.9 | 18.3 | 14.3 |
| Elongation at break | ％ | 455 | 431 | 447 | 420 | 425 | 372 |
| Tear strength | N/mm | 87 | 91 | 90 | 94 | 88 | 60 |
| Weld corner tension | N | 163 | 177 | 172 | 167 | 171 | 135 |
| Coefficient of thermal conductivity | W/m.K | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | 0.2 |
The test result shows that: the micro-foaming type EVA refrigerator door seal particle has good mechanical property, the tensile strength is more than or equal to 17.0MPa, and the elongation at break is more than or equal to 400 percent; due to the addition of the foaming agent, micro bubbles are generated in the product, the tearing strength is more than or equal to 80, the welding angle tension is more than or equal to 160N, the heat conductivity coefficient is less than or equal to 0.1, the tearing strength of the material is increased, the welding angle tension is increased, and the sealing performance and the heat preservation effect are obviously improved.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides an ethylene-ethylene vinyl acetate copolymer EVA refrigerator door seal granule which characterized in that: the composition consists of the following components in parts by weight:
10-100 parts of ethylene-vinyl acetate copolymer (EVA);
5-50 parts of Polyethylene (PE);
5-50 Parts of Polypropylene (PP);
5-50 parts of ethylene-alkene copolymer (POE);
10-100 parts of mineral filler;
0.1-3 parts of a foaming agent;
0.1-3 parts of a nucleating agent;
0.1-3 parts of a lubricant;
0.1-3.0 parts of antioxidant;
0.1-3.0 parts of a photoinitiator;
0.1-3.0 parts of a crosslinking agent;
0.1-2.0 parts of antibacterial mildew preventive;
0.1-2.0 parts of pigment.
2. The ethylene-vinyl acetate copolymer EVA refrigerator door seal particle of claim 1, wherein: the ethylene-vinyl acetate copolymer is an ethylene-vinyl acetate copolymer with the vinyl acetate content of 15-45%.
3. The ethylene-vinyl acetate copolymer EVA refrigerator door seal particle of claim 1, wherein: the Polyethylene (PE) is one or more of low-density polyethylene (LDPE) and linear low-density polyethylene (LLDPE), and 5-20% of maleic anhydride grafted polyethylene copolymer is added; the polypropylene (PP) is one or more of homo-polypropylene (PP-H) and block copolymer polypropylene (PP-B), and 5-20% of maleic anhydride grafted polypropylene copolymer is added; the ethylene-olefin copolymer (POE) is one or more of high polymer of ethylene and butylene or high polymer of ethylene and octene which adopts metallocene catalyst.
4. The ethylene-vinyl acetate copolymer EVA refrigerator door seal particle of claim 1, wherein: the mineral filler is one or more of heavy calcium carbonate or light calcium carbonate; the foaming agent is one or more of azo foaming agent and zinc oxide; the nucleating agent is one or more of alpha crystal form nucleating agent or beta crystal form nucleating agent; the lubricant is one or more of erucamide, oleamide, polyethylene wax, oxidized polyethylene wax and silicone master batch; the antioxidant is one or more of pentaerythritol tetra (beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate) (1010), tris (2, 4-di-tert-butylphenyl) phosphite (168) and dioctadecyl thiodipropionate (DSTDP).
5. The ethylene-vinyl acetate copolymer EVA refrigerator door seal particle of claim 1, wherein: the photoinitiator is one or more of benzoin dimethyl ether, benzoin ethyl ether, benzoin butyl ether, diphenylethanone, alpha-dimethoxy-alpha-phenylacetophenone, alpha-diethoxyacetophenone, alpha-hydroxyalkyl benzophenone, alpha-aminoalkyl benzophenone, bis-benzoyl phenyl phosphine oxide, benzophenone and 2, 4-dihydroxy benzophenone.
6. The ethylene-vinyl acetate copolymer EVA refrigerator door seal particle of claim 1, wherein: the cross-linking agent is one or more of dicumyl peroxide (DCP), Benzoyl Peroxide (BPO), di-tert-butyl peroxide (DTBP), Diethylenetriamine (DTA), 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide, 2-ethyl-4-methylimidazole, 2-phenylimidazole, 2-isopropylimidazole, tetra-gas phthalic anhydride, hexahydrophthalic anhydride, triethylenetetramine, dimethylaminopropylamine and vinyl triethoxysilane.
7. The ethylene-vinyl acetate copolymer EVA refrigerator door seal particle of claim 1, wherein: the antibacterial mildew preventive is one or more of special broad-spectrum antibacterial mildew preventive for plastics; the pigment can be selected from inorganic pigment, organic pigment, dye, etc., such as one or more of phthalocyanine green, phthalocyanine blue, titanium pigment, carbon black, and ultramarine.
8. The method for preparing the ethylene-vinyl acetate copolymer EVA refrigerator door seal particles of claims 1-7, comprising the steps of:
step one, weighing: accurately weighing the components according to the parts range in the claim 1;
step two, grinding: adding ethylene-vinyl acetate copolymer (EVA), Polyethylene (PE), polypropylene (PP), foaming agent and nucleating agent into a colloid grinder according to a certain proportion, fully grinding until the diameter of solid is less than 1mm, and sieving with a 20-mesh sieve for later use;
step three, pre-crosslinking: adding the ground resin powder into a horizontal mixing pot, slowly adding a photoinitiator and a cross-linking agent while slowly stirring, then placing the mixed material into a UVLED curing device (YS-UVA60M2A) in the Yunshuo lamp industry for irradiation (UV wavelength of 365-;
step four, mixing: adding the pre-crosslinking material, the lubricant, the antioxidant, the antibacterial mildew preventive and the like into a medium-high speed mixing pot, starting the high-speed mixing pot, adding the mineral filler and the pigment into the high-speed mixing pot after 10min, and obtaining a uniformly mixed material after 10 min;
step five, banburying: and (3) banburying the mixed materials by using an internal mixer, wherein the temperature parameter of a banburying chamber of the internal mixer is set to be 140-170 ℃, the rotating speed of a rotor of the banburying chamber is 20-60 r/min, and when the temperature of the banburying chamber reaches the set temperature, banburying well-mixed dough is obtained. Under the condition of sufficient material plasticization, the banburying time of the materials in the banburying chamber is reduced as much as possible;
step six, granulation: and extruding and granulating the kneaded dough-like material in the internal mixer by an extruder, wherein the parameters of the extruder are set to be 130-150 ℃ in the first zone, 140-160 ℃ in the second zone, 150-170 ℃ in the third zone, 155-185 ℃ in the head and 30-50HZ in the host frequency, and uniform micro-foaming EVA refrigerator door seal particles are obtained from the extruder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111610299.9A CN114106451A (en) | 2021-12-27 | 2021-12-27 | Ethylene-vinyl acetate copolymer EVA refrigerator door seal particle and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111610299.9A CN114106451A (en) | 2021-12-27 | 2021-12-27 | Ethylene-vinyl acetate copolymer EVA refrigerator door seal particle and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114106451A true CN114106451A (en) | 2022-03-01 |
Family
ID=80362612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111610299.9A Pending CN114106451A (en) | 2021-12-27 | 2021-12-27 | Ethylene-vinyl acetate copolymer EVA refrigerator door seal particle and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114106451A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114507397A (en) * | 2022-03-07 | 2022-05-17 | 李海东 | Modified thermoplastic material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103804774A (en) * | 2014-02-24 | 2014-05-21 | 上海海优威电子技术有限公司 | Radiation pre-crosslinked ethylene-vinyl acetate (EVA) resin film and preparation method thereof |
| CN104497392A (en) * | 2014-12-09 | 2015-04-08 | 黑龙江省润特科技有限公司 | Ultraviolet cross-linking polyolefin foaming material and preparation method thereof |
| WO2018130196A1 (en) * | 2017-01-13 | 2018-07-19 | 杭州星庐科技有限公司 | Rubber composite, applications in foamed product, and manufacturing method |
-
2021
- 2021-12-27 CN CN202111610299.9A patent/CN114106451A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103804774A (en) * | 2014-02-24 | 2014-05-21 | 上海海优威电子技术有限公司 | Radiation pre-crosslinked ethylene-vinyl acetate (EVA) resin film and preparation method thereof |
| CN104497392A (en) * | 2014-12-09 | 2015-04-08 | 黑龙江省润特科技有限公司 | Ultraviolet cross-linking polyolefin foaming material and preparation method thereof |
| WO2018130196A1 (en) * | 2017-01-13 | 2018-07-19 | 杭州星庐科技有限公司 | Rubber composite, applications in foamed product, and manufacturing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114507397A (en) * | 2022-03-07 | 2022-05-17 | 李海东 | Modified thermoplastic material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112063048B (en) | Low-dielectric high-melt-strength flame-retardant polypropylene material and preparation method thereof | |
| CN102936369B (en) | Silane self-crosslinked polyolefin flexible insulation cable material and preparation method thereof | |
| CN103450648A (en) | Biodegradable polylactic acid/starch compound material and preparation method thereof | |
| CN102140193A (en) | Chemically cross-linked polyethylene composition and preparation method thereof | |
| CN101255247A (en) | Boiling-free silicane cross-linking polyolefin composition | |
| CN111051398A (en) | Reactive compounding of ethylene-vinyl acetate | |
| CN103589048A (en) | Industrial production method of dynamic vulcanized thermoplastic polyolefin elastomer | |
| CN110283393A (en) | High voltage withstanding TPV elastomer and preparation method thereof | |
| CN114106451A (en) | Ethylene-vinyl acetate copolymer EVA refrigerator door seal particle and preparation method thereof | |
| CN101891916A (en) | Peroxide crosslinked type semi-conductive screen material for crosslinked cable conductor | |
| CN111333954A (en) | Illumination aging resistant plastic for automotive interior parts and processing technology thereof | |
| CN110746704A (en) | Soft oil-resistant ultralow-temperature-resistant halogen-free flame-retardant cable material for wind energy cable and preparation method thereof | |
| CN105017599A (en) | High-concentration carbon black master batch for polyethylene geomembrane | |
| CA3097377A1 (en) | Foamed polyolefin compositions for wire and cable coating | |
| CN106928624B (en) | Core-shell nylon toughening agent based on extruder process, and preparation method and application thereof | |
| CN107722431A (en) | A kind of anti-ultraviolet ageing polyethylene film and preparation method thereof | |
| CN107541004B (en) | Load-resistant and fatigue-resistant TPE (thermoplastic elastomer) and preparation method thereof | |
| CN107964173A (en) | A kind of EPDM sulfuration thermoplastic elastomers of ultra-low-smell and preparation method thereof | |
| CN105778206B (en) | A kind of softness PE cable protective cover material and preparation method thereof | |
| CN107857929B (en) | Foaming composite material and forming method thereof | |
| TWI702254B (en) | Method for manufacturing cross-linked and weather-resistant polyolefin sheet for solar cell backplane | |
| CN109021583A (en) | Three component tear-proof silicon rubber of one kind and preparation method | |
| CN104231445A (en) | High-melt-strength polypropylene composition and preparation method thereof | |
| EP4065612A1 (en) | Process for producing a polyethylene composition using molecular weight enlargement | |
| CN104448573A (en) | Polypropylene composition with low content of VOC (volatile organic compounds) and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220301 |