CN118344696A - GMA melt grafting chlorinated polyethylene material and preparation method thereof - Google Patents
GMA melt grafting chlorinated polyethylene material and preparation method thereof Download PDFInfo
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- CN118344696A CN118344696A CN202410342139.8A CN202410342139A CN118344696A CN 118344696 A CN118344696 A CN 118344696A CN 202410342139 A CN202410342139 A CN 202410342139A CN 118344696 A CN118344696 A CN 118344696A
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- chlorinated polyethylene
- gma
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- polyethylene material
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- 239000004709 Chlorinated polyethylene Substances 0.000 title claims abstract description 93
- 239000000463 material Substances 0.000 title claims abstract description 81
- 238000002360 preparation method Methods 0.000 title abstract description 14
- 239000003381 stabilizer Substances 0.000 claims abstract description 18
- 238000004132 cross linking Methods 0.000 claims abstract description 14
- 239000003999 initiator Substances 0.000 claims abstract description 14
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 12
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 11
- 239000003112 inhibitor Substances 0.000 claims abstract description 11
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000460 chlorine Substances 0.000 claims abstract description 10
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 10
- 239000000314 lubricant Substances 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 24
- 238000002156 mixing Methods 0.000 claims description 15
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 12
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical group O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims description 12
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 11
- -1 β -diketone Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 9
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims description 7
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 7
- 239000008116 calcium stearate Substances 0.000 claims description 7
- 235000013539 calcium stearate Nutrition 0.000 claims description 7
- 239000006084 composite stabilizer Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 6
- 239000002656 Distearyl thiodipropionate Substances 0.000 claims description 5
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 claims description 5
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 claims description 5
- 235000019305 distearyl thiodipropionate Nutrition 0.000 claims description 5
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 5
- 150000002910 rare earth metals Chemical class 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims description 4
- 229960001545 hydrotalcite Drugs 0.000 claims description 4
- 229910001701 hydrotalcite Inorganic materials 0.000 claims description 4
- MYWOJODOMFBVCB-UHFFFAOYSA-N 1,2,6-trimethylphenanthrene Chemical compound CC1=CC=C2C3=CC(C)=CC=C3C=CC2=C1C MYWOJODOMFBVCB-UHFFFAOYSA-N 0.000 claims description 3
- 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 3
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 235000019359 magnesium stearate Nutrition 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- DUBNHZYBDBBJHD-UHFFFAOYSA-L ziram Chemical compound [Zn+2].CN(C)C([S-])=S.CN(C)C([S-])=S DUBNHZYBDBBJHD-UHFFFAOYSA-L 0.000 claims description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 2
- 230000004927 fusion Effects 0.000 claims 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 claims 1
- 238000012545 processing Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 230000004048 modification Effects 0.000 abstract description 6
- 238000012986 modification Methods 0.000 abstract description 6
- 229920003023 plastic Polymers 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 6
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 48
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 9
- 239000004800 polyvinyl chloride Substances 0.000 description 9
- 229920000915 polyvinyl chloride Polymers 0.000 description 9
- 239000000523 sample Substances 0.000 description 9
- 239000004698 Polyethylene Substances 0.000 description 8
- 235000021355 Stearic acid Nutrition 0.000 description 8
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 8
- 229920000573 polyethylene Polymers 0.000 description 8
- 239000008117 stearic acid Substances 0.000 description 8
- 239000004609 Impact Modifier Substances 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 230000009477 glass transition Effects 0.000 description 6
- 239000000155 melt Substances 0.000 description 6
- 150000003254 radicals Chemical class 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000011056 performance test Methods 0.000 description 5
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229920001903 high density polyethylene Polymers 0.000 description 4
- 239000004700 high-density polyethylene Substances 0.000 description 4
- 229920006112 polar polymer Polymers 0.000 description 4
- 239000001993 wax Substances 0.000 description 4
- 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 3
- 239000004342 Benzoyl peroxide Substances 0.000 description 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 3
- 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 3
- 235000019400 benzoyl peroxide Nutrition 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 125000003700 epoxy group Chemical group 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- FQUDPIIGGVBZEQ-UHFFFAOYSA-N acetone thiosemicarbazone Chemical compound CC(C)=NNC(N)=S FQUDPIIGGVBZEQ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000009775 high-speed stirring Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000004209 oxidized polyethylene wax Substances 0.000 description 2
- 235000013873 oxidized polyethylene wax Nutrition 0.000 description 2
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- FGHOOJSIEHYJFQ-UHFFFAOYSA-N (2,4-ditert-butylphenyl) dihydrogen phosphite Chemical compound CC(C)(C)C1=CC=C(OP(O)O)C(C(C)(C)C)=C1 FGHOOJSIEHYJFQ-UHFFFAOYSA-N 0.000 description 1
- FPAZNLSVMWRGQB-UHFFFAOYSA-N 1,2-bis(tert-butylperoxy)-3,4-di(propan-2-yl)benzene Chemical compound CC(C)C1=CC=C(OOC(C)(C)C)C(OOC(C)(C)C)=C1C(C)C FPAZNLSVMWRGQB-UHFFFAOYSA-N 0.000 description 1
- DEKVAWHRMRNKMI-UHFFFAOYSA-N 1,2-bis(tert-butylperoxy)-3-propan-2-ylbenzene Chemical compound CC(C)C1=CC=CC(OOC(C)(C)C)=C1OOC(C)(C)C DEKVAWHRMRNKMI-UHFFFAOYSA-N 0.000 description 1
- SPSPIUSUWPLVKD-UHFFFAOYSA-N 2,3-dibutyl-6-methylphenol Chemical compound CCCCC1=CC=C(C)C(O)=C1CCCC SPSPIUSUWPLVKD-UHFFFAOYSA-N 0.000 description 1
- GSFSVEDCYBDIGW-UHFFFAOYSA-N 2-(1,3-benzothiazol-2-yl)-6-chlorophenol Chemical compound OC1=C(Cl)C=CC=C1C1=NC2=CC=CC=C2S1 GSFSVEDCYBDIGW-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 101150097115 dop-3 gene Proteins 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- IZGYIFFQBZWOLJ-CKAACLRMSA-N phaseic acid Chemical compound C1C(=O)C[C@@]2(C)OC[C@]1(C)[C@@]2(O)C=CC(/C)=C\C(O)=O IZGYIFFQBZWOLJ-CKAACLRMSA-N 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000013074 reference sample Substances 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 229920000428 triblock copolymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of 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
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
- C08F255/023—On to modified polymers, e.g. chlorinated polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Graft Or Block Polymers (AREA)
Abstract
The invention relates to the technical field of plastic modification, in particular to a GMA melt grafting chlorinated polyethylene material and a preparation method thereof, wherein the material comprises 100 parts of chlorinated polyethylene, 2-7 parts of stabilizer, 1.0-2.0 parts of lubricant, 0.6-1.5 parts of antioxidant, 2-4 parts of GMA, 0.3-1.0 parts of initiator, 0.5-1.5 parts of crosslinking inhibitor, 0.2-0.6 part of grafting auxiliary agent and 0.5-2 parts of chain terminator, wherein the chlorine content of the chlorinated polyethylene is 25-40%. Therefore, the invention utilizes the GMA to graft and modify the chlorinated polyethylene, can improve the mechanical strength, low-temperature toughness and other properties of the chlorinated polyethylene material, can be widely applied to areas with lower environmental temperature, reduces the production cost, improves the processing property and has higher economic value.
Description
Technical Field
The invention relates to the technical field of plastic modification, in particular to a GMA melt grafting chlorinated polyethylene material and a preparation method thereof.
Background
Chlorinated Polyethylene (CPE) is a random polymer prepared by suspension chlorination reaction of powdery high-density polyethylene (HDPE) special material through water phase or hydrochloric acid phase, is a saturated high-molecular material, is nontoxic and odorless, has excellent weather resistance, ozone resistance, chemical resistance and ageing resistance, does not contain heavy metals and Polycyclic Aromatic Hydrocarbons (PAHs), meets the environmental protection requirement, has wide application, is an excellent impact modifier of PVC plastic, is a thermoplastic elastomer material with good comprehensive performance, has been widely applied to products such as wires, cables, rubber tubes and films, but has a glass transition temperature of-15 ℃ to-25 ℃ for CPE, and has a glass transition temperature of-56 ℃ for ACR, and has a narrow CPE processing temperature range, thereby limiting the application of the CPE in the low-temperature field of PVC products.
The Glycidyl Methacrylate (GMA) has two functional groups of active vinyl and epoxy groups with ionic reaction in the molecule, and can be polymerized in a functional group mode and also can be polymerized in an ionic reaction mode, so that the Glycidyl Methacrylate (GMA) can be used for modifying ethylene polymers and polycondensation polymers, wherein the GMA can be involved in polymerization in three modes, and when ethylene is polymerized, the epoxy groups are positioned on a branched chain, namely an O-type polymer; secondly, epoxy ring opening, so that vinyl is positioned on a branched chain, namely a V-shaped polymer; thirdly, a compound with active hydrogen reacts with GMA to open a ring on an epoxy group to form a chain. Through a chemical grafting method, GMA is melt grafted to CPE molecular chains, so that the low-temperature impact toughness of the polyvinyl chloride product can be improved.
However, there is a problem in the melt grafting modification method in that the residual monomers are removed after the reaction is completed, and if the residual monomers are not treated, a mixture containing residual reactive groups and low molecular weight is finally obtained, and when the processing temperature is high, the main chain of the polymer is easily degraded, so that the product is decomposed and yellow, and the performance is reduced.
In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.
Disclosure of Invention
Aiming at the defects, the invention aims to provide the GMA melt grafted chlorinated polyethylene material and the preparation method thereof, and the GMA grafted modified chlorinated polyethylene can be used for improving the mechanical strength, the low-temperature toughness and other properties of the chlorinated polyethylene material, can be widely applied to areas with lower environmental temperature, reduces the production cost, improves the processing performance and has higher economic value.
In order to achieve the aim, the invention provides a GMA melt grafting chlorinated polyethylene material and a preparation method thereof, wherein the GMA melt grafting chlorinated polyethylene material comprises the following raw materials in parts by weight:
100 parts of chlorinated polyethylene, 2-7 parts of stabilizer, 1.0-2.0 parts of lubricant, 0.6-1.5 parts of antioxidant, 2-4 parts of GMA, 0.3-1.0 parts of initiator, 0.5-1.5 parts of crosslinking inhibitor, 0.2-0.6 part of grafting auxiliary agent and 0.5-2 parts of chain terminator.
Wherein the chlorine content of the chlorinated polyethylene is 25-40%.
According to the GMA melt grafting chlorinated polyethylene material, the stabilizer is any one or more of a calcium-zinc composite stabilizer, a rare earth composite stabilizer, an organotin stabilizer, hydrotalcite, beta-diketone, calcium stearate and magnesium stearate.
According to the GMA melt grafting chlorinated polyethylene material, the antioxidant is any two or more of pentaerythritol tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], tri [2, 4-di-tert-butylphenyl ] phosphite, n-stearyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, distearyl thiodipropionate and pentaerythritol.
According to the GMA melt grafting chlorinated polyethylene material, the grafting auxiliary is any one of styrene, styrene-butadiene-styrene copolymer, styrene-isoprene-styrene copolymer, zinc dimethyldithiocarbamate, pentaerythritol triacrylate, pentaerythritol tetraacrylate and 1, 4-butadiene dimethacrylate.
According to the GMA melt grafted chlorinated polyethylene material, the crosslinking inhibitor is caprolactam.
The invention also provides a preparation method of the GMA melt grafting chlorinated polyethylene material, which comprises the following steps:
Step one
Mixing chlorinated polyethylene, a stabilizer, a lubricant, an antioxidant, GMA, an initiator, a crosslinking inhibitor, a grafting aid and a chain terminator at high speed to obtain a mixture.
Step two
And (3) putting the mixture into a parallel double-screw extruder for melt grafting blending, extruding and granulating, and cooling to obtain the granular melt grafting modified chlorinated polyethylene material.
According to the preparation method of the GMA melt grafting chlorinated polyethylene material, the mixing time used in the first step is 3-5 minutes, and heating is not needed in the mixing process.
According to the preparation method of the GMA melt grafting chlorinated polyethylene material, the temperature of a first charging barrel area of the parallel double-screw extruder is 110-120 ℃, the temperature of a second charging barrel area is 120-130 ℃, the temperature of a third charging barrel area is 140-150 ℃, the temperature of a fourth charging barrel area is 145-155 ℃, the temperature of a fifth charging barrel area is 150-160 ℃, and the temperature of a granulator head area is 165-175 ℃.
According to the preparation method of the GMA melt grafting chlorinated polyethylene material, the screw rotating speed of the parallel double-screw extruder is 300-500 r/min.
Compared with the traditional chlorinated polyethylene product, the GMA grafted modified chlorinated polyethylene material has the advantages that the tensile property of CPE is improved, the glass transition temperature is reduced, the toughness of the material is increased, the low-temperature resistance is good, the bonding capacity, the hydrophilicity and the compatibility of the material with polar polymers can be improved, and the GMA grafted chlorinated polyethylene material is widely used as a reactive compatibilizer of impact modifiers and blends; the GMA grafted modified chlorinated polyethylene material is used as an impact modifier of a hard PVC product, can obviously improve the low-temperature impact property of the product, can be widely applied to threading pipes, waterproof coiled materials, pipelines and the like in severe cold areas, can meet the use requirement, and has higher economic value. In summary, the beneficial effects of the invention are as follows: the GMA grafted modified chlorinated polyethylene can improve the mechanical strength, low-temperature toughness and other properties of the chlorinated polyethylene material, can be widely applied to areas with lower environmental temperature, reduces the production cost, improves the processing performance and has higher economic value.
Detailed Description
The present invention will be described in further detail below in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention provides a GMA melt grafting chlorinated polyethylene material, which comprises the following raw materials in parts by weight:
100 parts of chlorinated polyethylene, 2-7 parts of stabilizer, 1.0-2.0 parts of lubricant, 0.6-1.5 parts of antioxidant, 2-4 parts of GMA, 0.3-1.0 parts of initiator, 0.5-1.5 parts of crosslinking inhibitor, 0.2-0.6 part of grafting auxiliary agent and 0.5-2 parts of chain terminator.
The invention takes chlorinated polyethylene as a base material of a melt grafting material, and utilizes melt grafting GMA to carry out modification, wherein the chlorine content of the chlorinated polyethylene is 25-40%, the melting enthalpy is 2.0-5.0J/g, the Mooney viscosity (ML 125 ℃ (1+4)) is 90-110, the chlorinated polyethylene is mainly prepared from a special material of high-density polyethylene through hydrochloric acid phase suspension chlorination reaction, and the indexes such as melting heat, hardness, tensile strength, elongation, mooney viscosity and the like of the prepared CPE are different by controlling the chlorination reaction conditions of the high-density polyethylene and the sequence structure of the CPE with chlorine content and Cl atoms distributed on a molecular chain. The lower the chlorine content of the CPE, the better the thermal stability; the greater the molecular weight, the higher its strength. The chlorinated polyethylene has flexibility and certain strength, improves the strength of CPE (chlorinated polyethylene) through melt grafting modification, reduces the glass transition temperature, can improve the binding capacity, the hydrophilicity and the compatibility of the polymer with polar polymers, and is widely used as an impact modifier and a reactive compatibilizer of a blend.
Preferably, the stabilizer is one or more of calcium-zinc composite stabilizer, rare earth composite stabilizer, organotin stabilizer, hydrotalcite, beta-diketone or calcium stearate and magnesium stearate. In the melt grafting process, the initiator is decomposed at high temperature to generate free radicals, and the hydrogen atoms of the initiator are removed from the chloridized polyethylene macromolecular chain segments to form macromolecular free radicals, so that the GMA chain segments are grafted, hydrogen chloride is generated in the process, and the chloridized polyethylene is accelerated to decompose, so that a sufficient amount of stabilizer is required to be added, and the calcium-zinc composite stabilizer is used as a good heat stabilizer and has the characteristics of environmental protection and high stability efficiency.
Preferably, the lubricant is any one or more of paraffin wax, stearic acid soap, polyethylene wax or oxidized polyethylene wax. For example, the lubricant may be stearic acid and polyethylene wax, stearic acid and stearic acid esters, and polyethylene wax and oxidized polyethylene wax, etc., and those skilled in the art may appropriately combine them according to the actual situation.
Preferably, the antioxidant is any two or more of pentaerythritol tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate (1010), tris [2, 4-di-tert-butylphenyl ] phosphite (168), n-stearyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate (1076), distearyl thiodipropionate (DSTP) and pentaerythritol. For example, antioxidants 1010 and 168 are as follows: 1 and pentaerythritol has good synergistic effect.
Preferably, the initiator is any one of dicumyl peroxide (DCP), benzoyl Peroxide (BPO), bis (t-butylperoxy) diisopropylbenzene (bis BP), di-t-butyl peroxide (DTBP) or bis-t-butylperoxyisopropyl benzene (BIPB). The addition proportion of the initiator is proper, excessive degradation of the product is caused by excessive initiator, and small molecules generated by the decomposition of the initiator are increased, so that the small molecule residue of the product is increased; too few radicals are generated and affect the grafting efficiency of GMA.
Preferably, the crosslinking inhibitor is caprolactam, and crosslinking side reaction can occur in the melt grafting process in the presence of a peroxide initiator, so that the grafting rate of grafts is influenced, and in order to inhibit the crosslinking reaction between macromolecules, the crosslinking inhibitor is added, so that early crosslinking can be effectively prevented in the process of modifying CPE by GMA melt grafting, and gel is prevented from occurring.
Preferably, the grafting aid is any one of styrene, styrene-butadiene-styrene copolymer (SBS), styrene-isoprene-styrene copolymer (SIS), zinc dimethyldithiocarbamate, pentaerythritol triacrylate, pentaerythritol tetraacrylate or 1, 4-butadiene dimethacrylate. The grafting auxiliary agent can be combined with the macromolecular free radical to form a relatively stable free radical and branched structure, prolong the service life of the macromolecular free radical, and effectively reduce the breakage of beta-bond in the grafting reaction process, thereby effectively improving the grafting efficiency. Styrene, although most effective in improving grafting efficiency, is a toxic substance having a strong pungent odor, easily causes production safety problems and introduces new pungent odor into the product, whereas styrene-butadiene-styrene copolymer (SBS) is a triblock copolymer with styrene and butadiene as monomers, and the presence of butadiene double bonds improves the graftability of SBS, so the grafting aid is preferably styrene-butadiene-styrene copolymer (SBS).
Preferably, the chain terminator is one or two of Acetone Thiosemicarbazone (ATSC), bisphenol a (BPA), dibutyl hydroxy toluene (BHT), hydroquinone, sodium dimethyl dithiocarbamate, styrene.
The invention also provides a preparation method for preparing the GMA melt grafting chlorinated polyethylene material, which comprises the following steps:
Step one
The chlorinated polyethylene, the stabilizer, the lubricant, the antioxidant, the GMA, the initiator, the crosslinking inhibitor, the grafting auxiliary and the chain terminator are mixed at high speed to obtain a mixture, and the mixing time used in the whole step one is 3-5 minutes. The mixing process does not need heating.
Step two
The temperatures of each section of the parallel double-screw extruder are set as follows: 110-120 ℃ in a first charging barrel area, 120-130 ℃ in a second charging barrel area, 140-150 ℃ in a third charging barrel area, 145-155 ℃ in a fourth charging barrel area, 150-160 ℃ in a fifth charging barrel area, 165-175 ℃ in a granulator head area, feeding the powder mixture after the temperature of a parallel double screw extruder is stable, carrying out melt grafting blending at a screw rotating speed of 300-500 r/min, extruding and granulating, and cooling to obtain the granular melt grafting modified chlorinated polyethylene material.
The invention selects specific chlorinated polyethylene as a base material of a melt grafting material, and the melt grafting GMA is modified, so that the mechanical strength of CPE is improved, the glass transition temperature is reduced, the bonding capacity, the hydrophilicity and the compatibility of the polymer with polar polymers can be improved, and the modified CPE can be widely used as an impact modifier and a reactive compatibilizer of a blend; the low-temperature toughness is excellent, and the waterproof coating can be widely applied to threading pipes, waterproof coiled materials, pipelines and the like in severe cold areas, can meet the use requirements, and has higher economic value.
In order to verify the performance of the GMA melt-grafted chlorinated polyethylene material of the invention, the invention has been subjected to a plurality of index tests of chlorinated polyethylene and the grafted material has been prepared according to the above method, providing the following examples:
Example 1
100 Parts of CPE (chlorine content 35%), 3.1 parts of rare earth stabilizer, 0.5 part of calcium stearate, 1 part of stearic acid, 0.3 part of antioxidant 1010, 0.3 part of antioxidant 168, 2 parts of GMA, 0.3 part of DCP, 0.5 part of caprolactam, 0.2 part of SBS and 0.5 part of BPA are weighed according to the parts by weight, the mixture is poured into a high-speed mixer, the mixer is started, high-speed stirring is carried out for 3 minutes, the materials are uniform, a mixture is obtained, the obtained mixture is extruded and granulated by a parallel twin-screw extruder (a first cylinder area 110 ℃, a second cylinder area 120 ℃, a third cylinder area 140 ℃, a fourth cylinder area 145 ℃, a fifth cylinder area 150 ℃, a granulating head area 165 ℃ and the mixture is subjected to melt grafting and blending at a screw speed of 300r/min, and the granulated GMA is extruded and granulated, and the granular melt grafting polyethylene material is obtained.
Example 2
100 Parts of CPE (30% of chlorine), 4 parts of calcium-zinc stabilizer, 1 part of calcium stearate, 0.5 part of beta-diketone, 1.5 parts of stearic acid, 0.6 part of antioxidant 1010, 0.4 part of pentaerythritol, 3 parts of GMA, 0.8 part of BPO, 1 part of caprolactam, 0.4 part of SIS and 1.3 parts of BPA are weighed according to the parts by weight, the materials are poured into a high-speed mixer, the mixer is started, high-speed stirring is carried out for 4 minutes, the materials are uniformly mixed, a mixture is obtained, the obtained mixture is extruded and granulated by a parallel double-screw extruder (a first cylinder area 115 ℃, a second cylinder area 125 ℃, a third cylinder area 145 ℃, a fourth cylinder area 150 ℃, a fifth cylinder area 155 ℃, a granulating head area 170 ℃, and the granulated and grafted and granulated GMA are subjected to melt graft blending at a screw rotating speed of 400r/min, and extrusion granulating), and the granulated melt grafted polyethylene material is obtained.
Example 3
100 Parts of CPE (chlorine content 37%), 3.5 parts of calcium-zinc stabilizer, 2.5 parts of hydrotalcite, 1 part of calcium stearate, 0.5 part of beta-diketone, 2 parts of stearic acid, 1 part of antioxidant DSTP, 0.5 part of antioxidant 1076, 4 parts of GMA, 1 part of bis-BP, 1.5 parts of caprolactam, 0.6 part of SBS and 2 parts of BPA, and (3) weighing the materials according to the weight parts, pouring the materials into a high-speed mixer, starting the mixer, stirring at a high speed for 5 minutes, homogenizing the materials to obtain a mixture, extruding and granulating the obtained mixture by using a parallel double-screw extruder (a first charging barrel region 120 ℃, a second charging barrel region 130 ℃, a third charging barrel region 150 ℃, a fourth charging barrel region 155 ℃, a fifth charging barrel region 160 ℃, a granulator head region 175 ℃, and carrying out melt grafting blending and extrusion granulation at a screw speed of 500 r/min) to obtain the granular GMA melt grafting chlorinated polyethylene material.
Comparative example:
100 parts of CPE (30% of chlorine content), 4 parts of calcium-zinc stabilizer, 1 part of calcium stearate, 0.5 part of beta-diketone, 1.5 parts of stearic acid, 0.6 part of antioxidant 1010 and 0.4 part of pentaerythritol are weighed according to the parts by weight, the mixture is poured into a high-speed mixer, the mixer is started, the mixture is stirred at a high speed for 4 minutes, the materials are uniformly stirred, a mixture is obtained, the obtained mixture is extruded and granulated by a parallel double-screw extruder (115 ℃ in a first area of a material cylinder, 125 ℃ in a third area of the material cylinder, 145 ℃ in a fourth area of the material cylinder, 150 ℃ in a fifth area of the material cylinder, 155 ℃ in a granulator head area, and the mixture is melt grafted, blended and extruded and granulated at a screw speed of 400 r/min), and the chlorinated polyethylene material is obtained.
The chlorinated polyethylene materials of the above examples 1, 2, 3 and comparative examples were subjected to sample preparation and performance test, and the results of the performance test are shown in table one.
Table-results of performance test of grafted CPE composites
As can be seen from the first table, the GMA melt grafted chlorinated polyethylene material has higher tensile property, excellent mechanical property, good low temperature resistance and excellent comprehensive performance.
In order to verify the performance of the GMA melt-grafted chlorinated polyethylene material, the composite materials prepared in the above examples and comparative examples are applied to hard PVC plastics, and related performance tests are carried out according to test standards by preparing samples, wherein the preparation steps are as follows:
The basic formula comprises the following components: PVC (type 5) 100, CPE 9, rare earth 3.1, ACR 1.6, titanium white 4, calcium carbonate 15, DOP 3, stearic acid 0.2 and PE wax 0.3.
Sample preparation: accurately weighing the materials according to the formula, mixing the materials to 100 ℃ at high speed in a 10L high-speed mixer, discharging the materials, plasticating the materials to be sheets on a 180 ℃ double-roll open mill, beating 5 triangular bags, adding grafted CPE granules or comparative CPE granules, plasticating the materials for 3 minutes after the sheets are formed into sheets with the thickness of about 0.5mm, shearing the sheets, pressing the sheets into sample sheets with the thickness of 4mm on a flat plate forming machine according to the requirement, preheating the sample sheets for 5 minutes at the template temperature of 185 ℃, maintaining the pressure for 5 minutes under the condition of 15MPa, finally uniformly cooling the sample sheets to room temperature, and respectively processing the sample sheets into impact, stretching and stretching impact samples according to the standard, wherein the test results are shown in a table II.
Performance test result of surface two-grafted CPE composite material modified PVC plastic
| Sequence number | Detecting items | Unit (B) | Sample 1 | Sample 2 | Sample 3 | Reference sample | Detection method |
| 1 | Tensile Strength | MPa | 41.8 | 42.1 | 42.7 | 38.7 | GB/T1040.2-2022 |
| 2 | Elongation at break | ％ | 160.3 | 159.1 | 163.9 | 157.1 | GB/T1040.2-2022 |
| 3 | Low temperature single V notch impact strength | KJ/m2(-10℃) | 17.6 | 16.3 | 15.8 | 12.1 | GB/T1043.1-2008 |
As can be seen from the second table, the GMA melt grafted chlorinated polyethylene material is used for impact modification of hard PVC plastic, the impact strength of a low-temperature notch is improved, the low-temperature toughness is obviously improved, the tensile property is higher, the mechanical property is excellent, and the comprehensive performance is better.
Compared with the traditional chlorinated polyethylene product, the GMA grafted modified chlorinated polyethylene material has the advantages that the tensile property of CPE is improved, the glass transition temperature is reduced, the toughness of the material is increased, the low temperature resistance is good, the bonding capacity, the hydrophilicity and the compatibility of the material with polar polymers can be improved, and the GMA grafted chlorinated polyethylene material is widely used as an impact modifier and a reactive compatibilizer of a blend; the GMA grafted modified chlorinated polyethylene material is used as an impact modifier of a hard PVC product, can obviously improve the low-temperature impact property of the product, can be widely applied to threading pipes, waterproof coiled materials, pipelines and the like in severe cold areas, can meet the use requirement, and has higher economic value. In summary, the beneficial effects of the invention are as follows: the GMA grafted modified chlorinated polyethylene can improve the mechanical strength, low-temperature toughness and other properties of the chlorinated polyethylene material, can be widely applied to areas with lower environmental temperature, reduces the production cost, improves the processing performance and has higher economic value.
Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention, as will be apparent to those skilled in the art, without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. The GMA melt-grafted chlorinated polyethylene material is characterized by comprising the following raw materials in parts by weight:
100 parts of chlorinated polyethylene, 2-7 parts of stabilizer, 1.0-2.0 parts of lubricant, 0.6-1.5 parts of antioxidant, 2-4 parts of GMA, 0.3-1.0 parts of initiator, 0.5-1.5 parts of crosslinking inhibitor, 0.2-0.6 part of grafting auxiliary agent and 0.5-2 parts of chain terminator;
Wherein the chlorine content of the chlorinated polyethylene is 25-40%.
2. The GMA melt-grafted chlorinated polyethylene material according to claim 1, wherein the stabilizer is any one or more of a calcium-zinc composite stabilizer, a rare earth composite stabilizer, an organotin-based stabilizer, hydrotalcite, β -diketone, calcium stearate and magnesium stearate.
3. The GMA melt grafted chlorinated polyethylene material of claim 1, wherein the antioxidant is any two or more of pentaerythritol tetrakis [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], tris [2, 4-di-tert-butylphenyl ] phosphite, n-stearyl β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, distearyl thiodipropionate, and pentaerythritol.
4. The GMA melt grafted chlorinated polyethylene material of claim 1, wherein the grafting aid is any one of styrene, styrene-butadiene-styrene copolymer, styrene-isoprene-styrene copolymer, zinc dimethyldithiocarbamate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, and 1, 4-butadiene dimethacrylate.
5. The GMA melt grafted chlorinated polyethylene material of claim 1, wherein the crosslinking inhibitor is caprolactam.
6. A process for preparing a GMA melt grafted chlorinated polyethylene material according to claim 1, comprising the steps of:
Step one
Mixing chlorinated polyethylene, a stabilizer, a lubricant, an antioxidant, GMA, an initiator, a crosslinking inhibitor, a grafting auxiliary agent and a chain terminator at high speed to obtain a mixture;
Step two
And (3) putting the mixture into a parallel double-screw extruder for melt grafting blending, extruding and granulating, and cooling to obtain the granular melt grafting modified chlorinated polyethylene material.
7. The method for preparing a GMA melt-grafted chlorinated polyethylene material according to claim 6, wherein the mixing time used in the first step is 3 to 5 minutes, and heating is not required in the mixing process.
8. The process for preparing a fusion grafted chlorinated polyethylene material according to claim 6, wherein the temperature of barrel one zone of the parallel twin screw extruder is 110-120 ℃, the temperature of barrel two zone is 120-130 ℃, the temperature of barrel three zone is 140-150 ℃, the temperature of barrel four zone is 145-155 ℃, the temperature of barrel five zone is 150-160 ℃, and the temperature of granulator head zone is 165-175 ℃.
9. The method for producing a GMA melt-grafted chlorinated polyethylene material according to claim 6, wherein the screw speed of the parallel twin-screw extruder is 300 to 500r/min.
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