CN116144100B - Low-temperature-resistant thin-wall high-length-diameter-ratio polypropylene ribbon - Google Patents
Low-temperature-resistant thin-wall high-length-diameter-ratio polypropylene ribbon Download PDFInfo
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- CN116144100B CN116144100B CN202111374809.7A CN202111374809A CN116144100B CN 116144100 B CN116144100 B CN 116144100B CN 202111374809 A CN202111374809 A CN 202111374809A CN 116144100 B CN116144100 B CN 116144100B
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- polypropylene
- lubricant
- toughening agent
- ratio
- low temperature
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- -1 polypropylene Polymers 0.000 title claims abstract description 76
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 68
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 68
- 239000012745 toughening agent Substances 0.000 claims abstract description 27
- 239000000314 lubricant Substances 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 239000002667 nucleating agent Substances 0.000 claims abstract description 17
- 239000000155 melt Substances 0.000 claims abstract description 16
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 150000001408 amides Chemical class 0.000 claims abstract description 11
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 11
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 11
- 239000012170 montan wax Substances 0.000 claims abstract description 8
- 150000007942 carboxylates Chemical class 0.000 claims abstract description 5
- 238000002425 crystallisation Methods 0.000 claims description 12
- 230000008025 crystallization Effects 0.000 claims description 12
- 229920001038 ethylene copolymer Polymers 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 7
- 239000005062 Polybutadiene Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 4
- 229920002857 polybutadiene Polymers 0.000 claims description 4
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 239000000600 sorbitol Substances 0.000 claims description 3
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 claims description 3
- ODBCKCWTWALFKM-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhex-3-yne Chemical compound CC(C)(C)OOC(C)(C)C#CC(C)(C)OOC(C)(C)C ODBCKCWTWALFKM-UHFFFAOYSA-N 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- AGXUVMPSUKZYDT-UHFFFAOYSA-L barium(2+);octadecanoate Chemical compound [Ba+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AGXUVMPSUKZYDT-UHFFFAOYSA-L 0.000 claims description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 2
- 235000013539 calcium stearate Nutrition 0.000 claims description 2
- 239000008116 calcium stearate Substances 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- HGPXWXLYXNVULB-UHFFFAOYSA-M lithium stearate Chemical compound [Li+].CCCCCCCCCCCCCCCCCC([O-])=O HGPXWXLYXNVULB-UHFFFAOYSA-M 0.000 claims description 2
- 235000019359 magnesium stearate Nutrition 0.000 claims description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 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
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 2
- 239000001993 wax Substances 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims 1
- UOCJDOLVGGIYIQ-PBFPGSCMSA-N cefatrizine Chemical group S([C@@H]1[C@@H](C(N1C=1C(O)=O)=O)NC(=O)[C@H](N)C=2C=CC(O)=CC=2)CC=1CSC=1C=NNN=1 UOCJDOLVGGIYIQ-PBFPGSCMSA-N 0.000 claims 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Substances OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 description 15
- 229920003023 plastic Polymers 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 229920002943 EPDM rubber Polymers 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229920005629 polypropylene homopolymer Polymers 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- SNAQARSCIHDMGI-UHFFFAOYSA-M sodium;bis(4-tert-butylphenyl) phosphate Chemical compound [Na+].C1=CC(C(C)(C)C)=CC=C1OP([O-])(=O)OC1=CC=C(C(C)(C)C)C=C1 SNAQARSCIHDMGI-UHFFFAOYSA-M 0.000 description 3
- 239000000454 talc Substances 0.000 description 3
- 229910052623 talc Inorganic materials 0.000 description 3
- PIYNPBVOTLQBTC-UHFFFAOYSA-N 1-[8-propyl-2,6-bis(4-propylphenyl)-4,4a,8,8a-tetrahydro-[1,3]dioxino[5,4-d][1,3]dioxin-4-yl]ethane-1,2-diol Chemical compound O1C2C(CCC)OC(C=3C=CC(CCC)=CC=3)OC2C(C(O)CO)OC1C1=CC=C(CCC)C=C1 PIYNPBVOTLQBTC-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N methyl pentane Natural products CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000010137 moulding (plastic) Methods 0.000 description 2
- 239000002530 phenolic antioxidant Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- YWEWWNPYDDHZDI-JJKKTNRVSA-N (1r)-1-[(4r,4ar,8as)-2,6-bis(3,4-dimethylphenyl)-4,4a,8,8a-tetrahydro-[1,3]dioxino[5,4-d][1,3]dioxin-4-yl]ethane-1,2-diol Chemical compound C1=C(C)C(C)=CC=C1C1O[C@H]2[C@@H]([C@H](O)CO)OC(C=3C=C(C)C(C)=CC=3)O[C@H]2CO1 YWEWWNPYDDHZDI-JJKKTNRVSA-N 0.000 description 1
- VNQNXQYZMPJLQX-UHFFFAOYSA-N 1,3,5-tris[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]-1,3,5-triazinane-2,4,6-trione Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CN2C(N(CC=3C=C(C(O)=C(C=3)C(C)(C)C)C(C)(C)C)C(=O)N(CC=3C=C(C(O)=C(C=3)C(C)(C)C)C(C)(C)C)C2=O)=O)=C1 VNQNXQYZMPJLQX-UHFFFAOYSA-N 0.000 description 1
- QSRJVOOOWGXUDY-UHFFFAOYSA-N 2-[2-[2-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoyloxy]ethoxy]ethoxy]ethyl 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C)=CC(CCC(=O)OCCOCCOCCOC(=O)CCC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 QSRJVOOOWGXUDY-UHFFFAOYSA-N 0.000 description 1
- VFBJXXJYHWLXRM-UHFFFAOYSA-N 2-[2-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]ethylsulfanyl]ethyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCCSCCOC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 VFBJXXJYHWLXRM-UHFFFAOYSA-N 0.000 description 1
- GAODDBNJCKQQDY-UHFFFAOYSA-N 2-methyl-4,6-bis(octylsulfanylmethyl)phenol Chemical compound CCCCCCCCSCC1=CC(C)=C(O)C(CSCCCCCCCC)=C1 GAODDBNJCKQQDY-UHFFFAOYSA-N 0.000 description 1
- MQWCQFCZUNBTCM-UHFFFAOYSA-N 2-tert-butyl-6-(3-tert-butyl-2-hydroxy-5-methylphenyl)sulfanyl-4-methylphenol Chemical compound CC(C)(C)C1=CC(C)=CC(SC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O MQWCQFCZUNBTCM-UHFFFAOYSA-N 0.000 description 1
- AIBRSVLEQRWAEG-UHFFFAOYSA-N 3,9-bis(2,4-ditert-butylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP1OCC2(COP(OC=3C(=CC(=CC=3)C(C)(C)C)C(C)(C)C)OC2)CO1 AIBRSVLEQRWAEG-UHFFFAOYSA-N 0.000 description 1
- HCILJBJJZALOAL-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)-n'-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyl]propanehydrazide Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 HCILJBJJZALOAL-UHFFFAOYSA-N 0.000 description 1
- QRLSTWVLSWCGBT-UHFFFAOYSA-N 4-((4,6-bis(octylthio)-1,3,5-triazin-2-yl)amino)-2,6-di-tert-butylphenol Chemical compound CCCCCCCCSC1=NC(SCCCCCCCC)=NC(NC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=N1 QRLSTWVLSWCGBT-UHFFFAOYSA-N 0.000 description 1
- VSAWBBYYMBQKIK-UHFFFAOYSA-N 4-[[3,5-bis[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]-2,4,6-trimethylphenyl]methyl]-2,6-ditert-butylphenol Chemical compound CC1=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C1CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 VSAWBBYYMBQKIK-UHFFFAOYSA-N 0.000 description 1
- ZVVFVKJZNVSANF-UHFFFAOYSA-N 6-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]hexyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCCCCCCOC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 ZVVFVKJZNVSANF-UHFFFAOYSA-N 0.000 description 1
- FXGFBWQPMINBNG-UHFFFAOYSA-N 8-nitroimidazo[1,2-a]pyridine Chemical compound [O-][N+](=O)C1=CC=CN2C=CN=C12 FXGFBWQPMINBNG-UHFFFAOYSA-N 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 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 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- QYMGIIIPAFAFRX-UHFFFAOYSA-N butyl prop-2-enoate;ethene Chemical compound C=C.CCCCOC(=O)C=C QYMGIIIPAFAFRX-UHFFFAOYSA-N 0.000 description 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229940114081 cinnamate Drugs 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229920006245 ethylene-butyl acrylate Polymers 0.000 description 1
- 229920006225 ethylene-methyl acrylate Polymers 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 229920001912 maleic anhydride grafted polyethylene Polymers 0.000 description 1
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 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
- MBAUOPQYSQVYJV-UHFFFAOYSA-N octyl 3-[4-hydroxy-3,5-di(propan-2-yl)phenyl]propanoate Chemical compound OC1=C(C=C(C=C1C(C)C)CCC(=O)OCCCCCCCC)C(C)C MBAUOPQYSQVYJV-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- ZCSNFGCDVJGPDD-YGJXXQMASA-M sodium;(1r,4as,10ar)-1,4a-dimethyl-7-propan-2-yl-2,3,4,9,10,10a-hexahydrophenanthrene-1-carboxylate Chemical compound [Na+].[O-]C(=O)[C@]1(C)CCC[C@]2(C)C3=CC=C(C(C)C)C=C3CC[C@H]21 ZCSNFGCDVJGPDD-YGJXXQMASA-M 0.000 description 1
- PDGBYPZJHBOOIC-UHFFFAOYSA-M sodium;2-tert-butylbenzoate Chemical compound [Na+].CC(C)(C)C1=CC=CC=C1C([O-])=O PDGBYPZJHBOOIC-UHFFFAOYSA-M 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M trans-cinnamate Chemical compound [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a low-temperature-resistant thin-wall high-length-diameter-ratio polypropylene ribbon which is prepared from a polypropylene composition, wherein the polypropylene composition comprises, by mass, 80-89% of a polypropylene material, 10-20% of a composite toughening agent, 0.2-1% of a lubricant, 0.01-1% of a nucleating agent, 0.01-0.5% of a melt index regulator and 0.01-0.5% of an antioxidant, the composite toughening agent consists of two specific toughening agents, and the lubricant consists of a montan wax, an amide lubricant and a carboxylate lubricant, wherein the mass ratio of the montan wax to the amide lubricant is 1:1-3:0.1-3; the invention can improve the low temperature resistance of the polypropylene material and the fluidity of the polypropylene relative to the mould, so that the mould is rapidly filled in a limited space and time, and further, the polypropylene ribbon with thin wall and high length-diameter ratio can be made, and the tripping force is strong.
Description
Technical Field
The invention belongs to the technical field of polymer materials and processing, and particularly relates to a thin-wall high-length-diameter-ratio plastic product, in particular to a low-temperature-resistant thin-wall high-length-diameter-ratio polypropylene ribbon.
Background
Thin-wall plastic molding technology is a relative concept, and the definition in the industry is divided into three cases: (1) The ratio L/T of the flow length to the thickness, namely the ratio of the flow length L of the melt entering the die to the furthest point of the cavity which the melt must fill to the corresponding average wall thickness T is more than 100 or 150, and the injection molding is thin-wall high-length-diameter-ratio injection molding; (2) Thickness of molded plastic partThe degree is less than 1mm, and the projection area of the plastic part is 50cm 2 The above injection molding method; (3) The wall thickness of the molded plastic part is less than 1mm (or 1.5 mm), or the injection molding of t/d (plastic part thickness t, plastic part diameter d, for disc type plastic part) below 0.05 is defined as thin-wall injection molding.
At present, the domestic thin-wall plastic molding technology is applied to the fields of food containers, medicine boxes, cosmetics, stationery and the like, and belongs to injection molding with small thin-wall length-diameter ratio. In the aspect of thin-wall high-length-diameter-ratio injection molding, because of the thin-wall high-length-diameter-ratio injection molding technology, higher requirements are put forward on equipment and an injection molding process, and meanwhile, higher requirements are put forward on high fluidity of raw materials, while the thin-wall low-length-diameter-ratio injection molding has lower fluidity requirements on the raw materials.
The polypropylene has the advantages of excellent mechanical property, good electrical insulation, easy processing and low price, and is widely applied to the fields of machinery, chemical industry, electric power, transportation and the like, but the polypropylene also has the defects of poor low-temperature toughness, low notch impact strength and the like. Particularly, in the process of manufacturing thin-wall products with high length-diameter ratio, such as ribbon manufacturing, in order to improve the fluidity of polypropylene, shorten the molding cycle and further improve the mechanical properties of polypropylene, a nucleating agent is generally required to be added in the process of formulation design to improve the crystallization rate of polypropylene and reduce the crystal size; the addition of the nucleating agent improves the crystallization behavior of polypropylene and simultaneously brings the problems of poorer low-temperature toughness and lower notch impact strength of polypropylene.
The thin-wall high-length-diameter-ratio ribbon is a cable fitting, is widely applied to various industries such as aerospace, automobile manufacturing, mechanical manufacturing, communication, electronics and electrics, construction, civil use and the like, and further the ribbon inevitably encounters a low-temperature environment in the use process.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an improved polypropylene ribbon, which can improve the low temperature resistance of a polypropylene material and the fluidity of polypropylene relative to a die, so that the die is rapidly filled in a limited space and time, and further the polypropylene ribbon with thin wall and high length-diameter ratio can be manufactured, and has strong tripping force.
In the invention, the thin wall refers to the wall thickness of less than 1.5mm, or t/d (the thickness t of the plastic part, the diameter d of the plastic part and the diameter d of the disc-shaped plastic part) is less than 0.05. The high aspect ratio refers to the ratio L/T of flow length to thickness, i.e. the ratio of flow length L from the melt into the mold to the furthest point of the cavity that the melt has to fill to the corresponding average wall thickness T, is above 100, specifically the ratio of length to thickness of the article is above 100.
In the present invention, the melt index is measured at a temperature of 230℃and a load of 2.16kg (measurement according to national standard: GB/T3682-2000).
In the present invention, the melting peak temperature, the melting enthalpy, the crystallization peak temperature and the crystallization enthalpy are respectively tested by Differential Scanning Calorimetry (DSC).
In order to solve the technical problems, the invention adopts the following technical scheme:
a low temperature resistant thin wall high aspect ratio polypropylene tie made from a polypropylene composition comprising the following components: the polypropylene composition further comprises a composite toughening agent and a melt index regulator, wherein the composite toughening agent consists of a first toughening agent and a second toughening agent, the first toughening agent is selected from one or more of polypropylene-acrylamide grafted copolymer, maleic anhydride grafted polypropylene, low density polyethylene, linear low density polyethylene, maleic anhydride grafted polyethylene, ethylene-vinyl acetate copolymer, maleic anhydride grafted ethylene-vinyl acetate copolymer, ethylene-methyl acrylate copolymer, ethylene-butyl acrylate copolymer, ethylene propylene diene monomer, butadiene rubber and isobutyl rubber, and the second toughening agent is selected from octene-ethylene copolymer and/or styrene-butadiene-styrene block copolymer;
the lubricant consists of a montan wax, an amide lubricant and a carboxylate lubricant, wherein the mass ratio of the montan wax to the amide lubricant is 1:1-3:0.1-3;
the polypropylene composition comprises, by mass, 80-89% of a polypropylene material, 10-20% of a composite toughening agent, 0.2-1% of a lubricant, 0.01-1% of a nucleating agent, 0.01-0.5% of a melt index regulator and 0.01-0.5% of an antioxidant.
According to some preferred aspects of the invention, the ratio of the first toughening agent to the second toughening agent is 1:0.2-5 by mass.
According to some preferred and specific aspects of the invention, the composite toughening agent is composed of ethylene propylene diene monomer and octene-ethylene copolymer, and the mass ratio of the ethylene propylene diene monomer to the octene-ethylene copolymer is 1-4:1;
or is composed of butadiene rubber and octene-ethylene copolymer, wherein the mass ratio of the butadiene rubber to the octene-ethylene copolymer is 1:1-4;
or comprises ethylene propylene diene monomer, octene-ethylene copolymer and styrene-butadiene-styrene block copolymer, wherein the mass ratio of ethylene propylene diene monomer to octene-ethylene copolymer to styrene-butadiene-styrene block copolymer is 0.5-2:0.5-2:1.
According to some preferred and specific aspects of the present invention, the polypropylene material has a melting peak temperature of 155 to 170 ℃, a melting enthalpy of 60 to 100J/g, and a crystallization peak temperature of 110 to 135 ℃, a crystallization enthalpy of 70 to 105J/g.
According to the invention, the polypropylene material has a melt index of 5-100g/10min, preferably 20-70g/10min.
According to some specific aspects of the invention, the polypropylene material is a combination of one or more selected from isotactic homo-polypropylene, syndiotactic homo-polypropylene, atactic homo-polypropylene, block-copolymerized polypropylene with an ethylene content of 7-15% and atactic copolymerized polypropylene.
According to some preferred and specific aspects of the present invention, the amide-based lubricant is a combination of one or more selected from the group consisting of N, N' -ethylenebisstearamide, oleamide and amide wax.
According to some preferred and specific aspects of the present invention, the organic salt lubricant is a combination of one or more selected from the group consisting of barium stearate, lithium stearate, calcium stearate, magnesium stearate, and sodium stearate.
In the invention, the lubricant composed of the montan wax, the amide lubricant and the carboxylate lubricant can obtain better effects, and can realize lower injection temperature and injection pressure when the material is injection molded. Compared with other polyolefin polymers, the polypropylene is a polymer which is relatively easy to thermally decompose, and the use of the composite lubricant is beneficial to inhibiting thermal degradation of the polypropylene during molding, easy to demould, good in product surface glossiness, low in product haze and high in yield.
According to some specific aspects of the invention, the polypropylene composition is prepared by the following method: weighing the raw materials according to the formula, mixing, extruding and granulating to prepare the composite material; wherein the extrusion temperature is 80-200 ℃.
According to some preferred and specific aspects of the invention, the nucleating agent consists of an inorganic nucleating agent and an organic nucleating agent according to a feed mass ratio of 1:0.1-10, preferably according to a feed mass ratio of 1: 0.2-5.
According to some specific aspects of the invention, the inorganic nucleating agent is a combination of one or more selected from talc, mica and silica.
According to some specific aspects of the invention, the organic nucleating agent is a combination of one or more of benzhydryl sorbitol and its derivatives, organic carboxylic acid sodium salt and its derivatives, and bis (2, 4-tert-butylphenyl) phosphate sodium salt and its derivatives. In some embodiments of the present invention, the benzhydryl sorbitol and its derivatives may be Millad3988, millad NX8000, etc., the sodium bis (2, 4-t-butylphenyl) phosphate and its derivatives may be NA-10, NA-11, NA-21, sodium bis (4-t-butylphenyl) phosphate, etc., and the sodium salt of an organic carboxylic acid and its derivatives may be benzoate, cinnamate, sodium t-butylbenzoate, sodium dehydroabietate, etc.
According to some preferred and specific aspects of the invention, the nucleating agent is a combination of talc and Millad NX8000, or a combination of mica and sodium bis (4-tert-butylphenyl) phosphate, or a combination of talc and sodium bis (4-tert-butylphenyl) phosphate.
According to some specific aspects of the invention, the antioxidant is a hindered phenolic antioxidant and/or a phosphite antioxidant, the hindered phenolic antioxidant being one or more selected from the group consisting of Irganox 1076, irganox 1135, irganox 1520, irganox 565, 2, 6-di-tert-butyl-p-cresol, irganox2246, irganox259, irganox245, irganox1081, irganox1035, irganox MD-1024, irganox 1019, irganox1010, irganox1330, irganox3114, and cyanx 1010.
According to some specific aspects of the invention, the phosphite antioxidant is a combination of one or more selected from Irg afos 168, ultranox 626, mark PEP36, cyanox2777, sandstab PEP Q, and Pho spot a.
According to some specific aspects of the invention, the melt index modifier is one or more selected from the group consisting of tert-amyl peroxy-3, 5-trimethylhexanoate, 1-bis- (tert-butylperoxy) cyclohexane, 1, l (-bis-tert-butyl peroxy) -3, 5-trimethyl-cyclohexane, 2, 5-dimethyl-2, 5-di (tert-butyl peroxy) hexyne-3, 2, 5-dimethyl-2, 5-di-tert-butylperoxy hexane, n-butyl 4, 4-bis- (tert-butylperoxy) valerate, tert-butyl hydroperoxide.
The invention provides another technical scheme that: the preparation method of the low-temperature-resistant thin-wall high-length-diameter-ratio polypropylene ribbon comprises the following steps:
(1) Preparation of a Polypropylene composition: weighing the raw materials according to the formula, mixing, extruding and granulating by a double-screw extruder, and drying to obtain the finished product;
(2) And (3) injection molding the polypropylene composition in the step (1) to prepare the low-temperature-resistant thin-wall high-length-diameter-ratio polypropylene ribbon.
In some embodiments of the invention, in step (1), the temperature settings for each zone of the twin screw extruder are, from the main feed: 80-100deg.C, 110-130 deg.C, 170-190 deg.C 170-190 ℃, 170-190 ℃ and 170-190 ℃, the die temperature is 165-185 ℃, and the screw rotating speed is 400-500 rpm.
According to some preferred aspects of the invention, in step (1), the drying is carried out at a temperature of 70-90 ℃ for a time of 2-20 hours.
In some embodiments of the invention, in step (2), the injection molding temperature is (zones 1-4): 140-160 ℃, 210-230 ℃, 220-240 ℃ and 215-235 ℃.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the invention, two toughening agents with specific contents are innovatively compounded for use, so that the polypropylene material has better low-temperature toughness, meanwhile, the flowability of polypropylene relative to a die is improved by combining the compounded lubricating agent, so that the die is rapidly filled in a limited space and time, a thin-wall polypropylene ribbon with high length-diameter ratio can be further prepared, the tripping force (which is the comprehensive representation of mechanical properties such as tensile property and bending property of the ribbon) is obviously improved, the notch impact strength is high, the special low-temperature environment can be further met, the negative influence caused by the addition of the nucleating agent is solved, and the application range of the thin-wall polypropylene ribbon with high length-diameter ratio is expanded.
Detailed Description
The above-described aspects are further described below in conjunction with specific embodiments; it should be understood that these embodiments are provided to illustrate the basic principles, main features and advantages of the present invention, and that the present invention is not limited by the scope of the following embodiments; the implementation conditions employed in the examples may be further adjusted according to specific requirements, and the implementation conditions not specified are generally those in routine experiments.
In the following, all starting materials are commercially available or prepared by methods conventional in the art, unless otherwise specified.
Examples 1 to 3
The low temperature resistant thin wall high length-diameter ratio polypropylene ribbon provided by the embodiments is made by injection molding of polypropylene composition, and the injection molding process is as follows: injection molding temperature is (1-4 zones): 150 ℃, 220 ℃, 230 ℃, 225 ℃.
Wherein the raw material formulation of the polypropylene composition is shown in the following table 1.
In the following table, the isotactic homo-polypropylene has a melting peak temperature of 165 ℃ and a melting enthalpy of 84.4J/g, and the crystallization peak temperature of 130 ℃ and a crystallization enthalpy of 90.2J/g, and a melt index of 62g/10min, and is purchased from the company of Shanxi Ulmin energy chemical Co., ltd; the block copolymerized polypropylene had a melting peak temperature of 163℃and a melting enthalpy of 79.9J/g, and a crystallization peak temperature of 123℃and a crystallization enthalpy of 91.7J/g, and a melt index of 58g/10min, and was purchased from China petrochemical Yang Zi, inc.
TABLE 1
The preparation method of the polypropylene composition comprises the following steps: weighing the raw materials according to the formula, mixing, extruding and granulating by a double-screw extruder, and drying at 80 ℃ for 6 hours to obtain the finished product; wherein, each district temperature setting of twin-screw extruder is from main feed respectively: 90 ℃, 120 ℃, 180 DEG C180 ℃, the die temperature was 175℃and the screw speed was 450 rpm.
Comparative example 1
Substantially the same as in example 1, the only difference is that: the composite toughening agent of example 1 was replaced with 15 parts of a single ethylene propylene diene monomer.
Comparative example 2
Substantially the same as in example 1, the only difference is that: the composite toughening agent of example 1 was replaced with 15 parts of a single octene-ethylene copolymer.
Comparative example 3
Substantially the same as in example 1, the only difference is that: in the lubricant, fatty alcohol is used to replace montan wax.
Comparative example 4
Substantially the same as in example 1, the only difference is that: the isotactic homo-polypropylene was adjusted accordingly to 83.8 parts without using melt index regulators.
Performance testing
The polypropylene tapes obtained in examples 1-3 and comparative examples 1-4 above were subjected to the following performance tests, with specific results being shown in Table 2. (test ribbon size is a 4.8X1250 mm series of thin wall high aspect ratio products)
Wherein, the test of low Wen Lachui (embodying toughness) and the test of trip force (embodying comprehensive mechanical property) at-40 ℃ are carried out by using temperature experiment, and the reference standard UL62275 is tested.
The low-temperature bending test method is that a sample is placed in an environment with the temperature of 23+/-2 ℃ and the relative humidity of 50% for 48 hours, then the sample is placed in a low-temperature test box with the specific temperature, after the sample is frozen for 4 hours, the sample is subjected to a rapid bending test in the low-temperature test box, and no fracture phenomenon is caused to pass.
TABLE 2
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (7)
1. A low temperature resistant thin wall high aspect ratio polypropylene tie made from a polypropylene composition comprising the following components: the polypropylene composition is characterized by also comprising a composite toughening agent and a melt index regulator, wherein the composite toughening agent consists of a first toughening agent and a second toughening agent,
the first toughening agent is ethylene propylene rubber, and the second toughening agent is octene-ethylene copolymer or is composed of octene-ethylene copolymer and styrene-butadiene-styrene block copolymer; or the first toughening agent is butadiene rubber, and the second toughening agent is octene-ethylene copolymer;
the feeding mass ratio of the first toughening agent to the second toughening agent is 1:0.2-5;
the lubricant consists of a montan wax, an amide lubricant and a carboxylate lubricant, wherein the mass ratio of the montan wax to the amide lubricant is 1:1-3:0.1-3; the amide lubricant is one or more selected from N, N' -diethyleneglycol bisstearamide, oleamide and amide wax, and the carboxylate lubricant is one or more selected from lithium stearate, barium stearate, calcium stearate, magnesium stearate and sodium stearate;
the polypropylene composition comprises, by mass, 80-89% of a polypropylene material, 10-20% of a composite toughening agent, 0.2-1% of a lubricant, 0.01-1% of a nucleating agent, 0.01-0.5% of a melt index regulator and 0.01-0.5% of an antioxidant.
2. The low temperature resistant, thin wall, high aspect ratio polypropylene tie of claim 1 wherein the polypropylene material has a melting peak temperature of 155 to 170 ℃, a melting enthalpy of 60 to 100J/g, and a crystallization peak temperature of 110 to 135 ℃ and a crystallization enthalpy of 70 to 105J/g.
3. The low temperature resistant thin wall high aspect ratio polypropylene tie of claim 1 or 2, wherein the polypropylene material has a melt index of 5-100g/10min; and/or the polypropylene material is one or a combination of a plurality of isotactic polypropylene, syndiotactic polypropylene, atactic polypropylene, block polypropylene with ethylene content of 7-15% and atactic polypropylene.
4. The low temperature resistant thin wall high aspect ratio polypropylene tie of claim 1, wherein the polypropylene composition is prepared by: weighing the raw materials according to the formula, mixing, extruding and granulating to prepare the composite material; wherein the extrusion temperature is 80-200 ℃.
5. The low temperature resistant thin wall high aspect ratio polypropylene tie according to claim 1, wherein the nucleating agent is composed of an inorganic nucleating agent and an organic nucleating agent according to a mass ratio of 1:0.1-10, the inorganic nucleating agent is a combination of one or more selected from talcum powder, mica and silicon dioxide, and the organic nucleating agent is a combination of one or more selected from benzhydryl sorbitol and derivatives thereof, organic carboxylic acid sodium salt and derivatives thereof, and bis (2, 4-tert-butylphenyl) phosphate sodium salt and derivatives thereof.
6. The low temperature resistant, thin wall high aspect ratio polypropylene tie according to claim 1, wherein the melt index adjuster is one or more selected from the group consisting of t-amyl peroxy-3, 5-trimethylhexanoate, 1-bis- (t-butylperoxy) cyclohexane, 1, l (-bis-t-butyl peroxy) -3, 5-trimethyl-cyclohexane, 2, 5-dimethyl-2, 5-di (t-butyl peroxy) hexyne-3, 2, 5-dimethyl-2, 5-di-t-butylperoxy hexane, n-butyl 4, 4-bis- (t-butylperoxy) pentanoate, t-butyl hydroperoxide.
7. The low temperature resistant thin-wall high length-diameter ratio polypropylene ribbon according to claim 1, wherein the antioxidant is hindered phenol antioxidant and/or phosphite antioxidant, and the mass ratio of the hindered phenol antioxidant to the phosphite antioxidant is 1:0.5-2.
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