CN107619599B - Low-odor spraying-free polyamide composition and preparation method thereof - Google Patents
Low-odor spraying-free polyamide composition and preparation method thereof Download PDFInfo
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- CN107619599B CN107619599B CN201711021321.XA CN201711021321A CN107619599B CN 107619599 B CN107619599 B CN 107619599B CN 201711021321 A CN201711021321 A CN 201711021321A CN 107619599 B CN107619599 B CN 107619599B
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- odor
- phosphate
- polyamide composition
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- spraying
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- 239000004952 Polyamide Substances 0.000 title claims abstract description 89
- 229920002647 polyamide Polymers 0.000 title claims abstract description 89
- 239000000203 mixture Substances 0.000 title claims abstract description 87
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000049 pigment Substances 0.000 claims abstract description 55
- 230000000694 effects Effects 0.000 claims abstract description 34
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 27
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 25
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000010452 phosphate Substances 0.000 claims abstract description 23
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 20
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 16
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 56
- 238000010438 heat treatment Methods 0.000 claims description 19
- 239000002994 raw material Substances 0.000 claims description 19
- 238000001125 extrusion Methods 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 15
- -1 polyethylene Polymers 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 239000011229 interlayer Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 239000002667 nucleating agent Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 claims description 5
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 5
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000010445 mica Substances 0.000 claims description 4
- 229910052618 mica group Inorganic materials 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 241000251468 Actinopterygii Species 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 238000007605 air drying Methods 0.000 claims description 3
- 239000004844 aliphatic epoxy resin Substances 0.000 claims description 3
- 239000002216 antistatic agent Substances 0.000 claims description 3
- 229940073609 bismuth oxychloride Drugs 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 claims description 3
- 239000004088 foaming agent Substances 0.000 claims description 3
- 239000004611 light stabiliser Substances 0.000 claims description 3
- BWOROQSFKKODDR-UHFFFAOYSA-N oxobismuth;hydrochloride Chemical compound Cl.[Bi]=O BWOROQSFKKODDR-UHFFFAOYSA-N 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000012745 toughening agent Substances 0.000 claims description 3
- 239000004135 Bone phosphate Substances 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 2
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 claims description 2
- 229910000416 bismuth oxide Inorganic materials 0.000 claims description 2
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims description 2
- 239000004845 glycidylamine epoxy resin Substances 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 125000005341 metaphosphate group Chemical group 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 150000003568 thioethers Chemical class 0.000 claims description 2
- 230000002745 absorbent Effects 0.000 claims 2
- 239000002250 absorbent Substances 0.000 claims 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 claims 1
- 239000002530 phenolic antioxidant Substances 0.000 claims 1
- 239000004677 Nylon Substances 0.000 abstract description 9
- 229920001778 nylon Polymers 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000000178 monomer Substances 0.000 abstract description 6
- 238000005507 spraying Methods 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 230000003197 catalytic effect Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 22
- 239000000047 product Substances 0.000 description 19
- 235000021317 phosphate Nutrition 0.000 description 13
- 229920002292 Nylon 6 Polymers 0.000 description 9
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 8
- 239000011347 resin Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000012765 fibrous filler Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 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 2
- SSADPHQCUURWSW-UHFFFAOYSA-N 3,9-bis(2,6-ditert-butyl-4-methylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane Chemical compound CC(C)(C)C1=CC(C)=CC(C(C)(C)C)=C1OP1OCC2(COP(OC=3C(=CC(C)=CC=3C(C)(C)C)C(C)(C)C)OC2)CO1 SSADPHQCUURWSW-UHFFFAOYSA-N 0.000 description 2
- PZRWFKGUFWPFID-UHFFFAOYSA-N 3,9-dioctadecoxy-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane Chemical compound C1OP(OCCCCCCCCCCCCCCCCCC)OCC21COP(OCCCCCCCCCCCCCCCCCC)OC2 PZRWFKGUFWPFID-UHFFFAOYSA-N 0.000 description 2
- DZIHTWJGPDVSGE-UHFFFAOYSA-N 4-[(4-aminocyclohexyl)methyl]cyclohexan-1-amine Chemical compound C1CC(N)CCC1CC1CCC(N)CC1 DZIHTWJGPDVSGE-UHFFFAOYSA-N 0.000 description 2
- PRWJPWSKLXYEPD-UHFFFAOYSA-N 4-[4,4-bis(5-tert-butyl-4-hydroxy-2-methylphenyl)butan-2-yl]-2-tert-butyl-5-methylphenol Chemical group C=1C(C(C)(C)C)=C(O)C=C(C)C=1C(C)CC(C=1C(=CC(O)=C(C=1)C(C)(C)C)C)C1=CC(C(C)(C)C)=C(O)C=C1C PRWJPWSKLXYEPD-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 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 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- CGRTZESQZZGAAU-UHFFFAOYSA-N [2-[3-[1-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoyloxy]-2-methylpropan-2-yl]-2,4,8,10-tetraoxaspiro[5.5]undecan-9-yl]-2-methylpropyl] 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C)=CC(CCC(=O)OCC(C)(C)C2OCC3(CO2)COC(OC3)C(C)(C)COC(=O)CCC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 CGRTZESQZZGAAU-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 150000008064 anhydrides Chemical class 0.000 description 2
- VHRGRCVQAFMJIZ-UHFFFAOYSA-N cadaverine Chemical compound NCCCCCN VHRGRCVQAFMJIZ-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007859 condensation product Substances 0.000 description 2
- 150000004985 diamines Chemical class 0.000 description 2
- 150000001991 dicarboxylic acids Chemical class 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- 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 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- TYCLKLCKLGCVEZ-UHFFFAOYSA-N 1,1-bis(2,6-ditert-butyl-4-methylphenyl)-2,2-bis(hydroxymethyl)propane-1,3-diol phosphono dihydrogen phosphate Chemical group OP(O)(=O)OP(=O)(O)O.C(C)(C)(C)C1=C(C(=CC(=C1)C)C(C)(C)C)C(O)(C(CO)(CO)CO)C1=C(C=C(C=C1C(C)(C)C)C)C(C)(C)C TYCLKLCKLGCVEZ-UHFFFAOYSA-N 0.000 description 1
- PXGZQGDTEZPERC-UHFFFAOYSA-N 1,4-cyclohexanedicarboxylic acid Chemical compound OC(=O)C1CCC(C(O)=O)CC1 PXGZQGDTEZPERC-UHFFFAOYSA-N 0.000 description 1
- PWGJDPKCLMLPJW-UHFFFAOYSA-N 1,8-diaminooctane Chemical compound NCCCCCCCCN PWGJDPKCLMLPJW-UHFFFAOYSA-N 0.000 description 1
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- QFGCFKJIPBRJGM-UHFFFAOYSA-N 12-[(2-methylpropan-2-yl)oxy]-12-oxododecanoic acid Chemical compound CC(C)(C)OC(=O)CCCCCCCCCCC(O)=O QFGCFKJIPBRJGM-UHFFFAOYSA-N 0.000 description 1
- VPRCINUSGGYBRP-UHFFFAOYSA-N 2,4,4-trimethylhexane-1,1-diamine Chemical compound CCC(C)(C)CC(C)C(N)N VPRCINUSGGYBRP-UHFFFAOYSA-N 0.000 description 1
- UKRMWGHPUNEIEL-UHFFFAOYSA-N 2-methyloctane-1,1-diamine Chemical compound CCCCCCC(C)C(N)N UKRMWGHPUNEIEL-UHFFFAOYSA-N 0.000 description 1
- JZUHIOJYCPIVLQ-UHFFFAOYSA-N 2-methylpentane-1,5-diamine Chemical compound NCC(C)CCCN JZUHIOJYCPIVLQ-UHFFFAOYSA-N 0.000 description 1
- XOUQAVYLRNOXDO-UHFFFAOYSA-N 2-tert-butyl-5-methylphenol Chemical compound CC1=CC=C(C(C)(C)C)C(O)=C1 XOUQAVYLRNOXDO-UHFFFAOYSA-N 0.000 description 1
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 description 1
- XUSNPFGLKGCWGN-UHFFFAOYSA-N 3-[4-(3-aminopropyl)piperazin-1-yl]propan-1-amine Chemical compound NCCCN1CCN(CCCN)CC1 XUSNPFGLKGCWGN-UHFFFAOYSA-N 0.000 description 1
- MOMKYJPSVWEWPM-UHFFFAOYSA-N 4-(chloromethyl)-2-(4-methylphenyl)-1,3-thiazole Chemical compound C1=CC(C)=CC=C1C1=NC(CCl)=CS1 MOMKYJPSVWEWPM-UHFFFAOYSA-N 0.000 description 1
- OZUBMBIDHPBIDL-UHFFFAOYSA-N 4-Propylcyclohexylamine Chemical compound CCCC1CCC(N)CC1 OZUBMBIDHPBIDL-UHFFFAOYSA-N 0.000 description 1
- IGSBHTZEJMPDSZ-UHFFFAOYSA-N 4-[(4-amino-3-methylcyclohexyl)methyl]-2-methylcyclohexan-1-amine Chemical compound C1CC(N)C(C)CC1CC1CC(C)C(N)CC1 IGSBHTZEJMPDSZ-UHFFFAOYSA-N 0.000 description 1
- DZCPFKFMCCYUOU-UHFFFAOYSA-N 5-methylnonane-1,1-diamine Chemical compound CCCCC(C)CCCC(N)N DZCPFKFMCCYUOU-UHFFFAOYSA-N 0.000 description 1
- GLBHAWAMATUOBB-UHFFFAOYSA-N 6,6-dimethylheptane-1,1-diamine Chemical compound CC(C)(C)CCCCC(N)N GLBHAWAMATUOBB-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 206010063659 Aversion Diseases 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 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 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- QYGFYBHNTPUYPF-UHFFFAOYSA-N [1-(2,4-dibutylphenyl)-3-ethylheptan-2-yl] dihydrogen phosphite Chemical compound CCCCC1=CC(=C(C=C1)CC(C(CC)CCCC)OP(O)O)CCCC QYGFYBHNTPUYPF-UHFFFAOYSA-N 0.000 description 1
- QLBRROYTTDFLDX-UHFFFAOYSA-N [3-(aminomethyl)cyclohexyl]methanamine Chemical compound NCC1CCCC(CN)C1 QLBRROYTTDFLDX-UHFFFAOYSA-N 0.000 description 1
- FDLQZKYLHJJBHD-UHFFFAOYSA-N [3-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC(CN)=C1 FDLQZKYLHJJBHD-UHFFFAOYSA-N 0.000 description 1
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical group CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 description 1
- OXIKYYJDTWKERT-UHFFFAOYSA-N [4-(aminomethyl)cyclohexyl]methanamine Chemical compound NCC1CCC(CN)CC1 OXIKYYJDTWKERT-UHFFFAOYSA-N 0.000 description 1
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
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- 230000000274 adsorptive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- IMUDHTPIFIBORV-UHFFFAOYSA-N aminoethylpiperazine Chemical compound NCCN1CCNCC1 IMUDHTPIFIBORV-UHFFFAOYSA-N 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- ZRIUUUJAJJNDSS-UHFFFAOYSA-N ammonium phosphates Chemical compound [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=O ZRIUUUJAJJNDSS-UHFFFAOYSA-N 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- QVYARBLCAHCSFJ-UHFFFAOYSA-N butane-1,1-diamine Chemical compound CCCC(N)N QVYARBLCAHCSFJ-UHFFFAOYSA-N 0.000 description 1
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 229940062672 calcium dihydrogen phosphate Drugs 0.000 description 1
- JUNWLZAGQLJVLR-UHFFFAOYSA-J calcium diphosphate Chemical compound [Ca+2].[Ca+2].[O-]P([O-])(=O)OP([O-])([O-])=O JUNWLZAGQLJVLR-UHFFFAOYSA-J 0.000 description 1
- FUFJGUQYACFECW-UHFFFAOYSA-L calcium hydrogenphosphate Chemical compound [Ca+2].OP([O-])([O-])=O FUFJGUQYACFECW-UHFFFAOYSA-L 0.000 description 1
- 229940064002 calcium hypophosphite Drugs 0.000 description 1
- 229910001382 calcium hypophosphite Inorganic materials 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229960001714 calcium phosphate Drugs 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 229940043256 calcium pyrophosphate Drugs 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- YQLZOAVZWJBZSY-UHFFFAOYSA-N decane-1,10-diamine Chemical compound NCCCCCCCCCCN YQLZOAVZWJBZSY-UHFFFAOYSA-N 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000012691 depolymerization reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 235000019838 diammonium phosphate Nutrition 0.000 description 1
- 229910000388 diammonium phosphate Inorganic materials 0.000 description 1
- MHDVGSVTJDSBDK-UHFFFAOYSA-N dibenzyl ether Chemical compound C=1C=CC=CC=1COCC1=CC=CC=C1 MHDVGSVTJDSBDK-UHFFFAOYSA-N 0.000 description 1
- 235000019821 dicalcium diphosphate Nutrition 0.000 description 1
- 235000019700 dicalcium phosphate Nutrition 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- MHJAJDCZWVHCPF-UHFFFAOYSA-L dimagnesium phosphate Chemical compound [Mg+2].OP([O-])([O-])=O MHJAJDCZWVHCPF-UHFFFAOYSA-L 0.000 description 1
- 229910000395 dimagnesium phosphate Inorganic materials 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 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 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- JMLPVHXESHXUSV-UHFFFAOYSA-N dodecane-1,1-diamine Chemical compound CCCCCCCCCCCC(N)N JMLPVHXESHXUSV-UHFFFAOYSA-N 0.000 description 1
- QFTYSVGGYOXFRQ-UHFFFAOYSA-N dodecane-1,12-diamine Chemical compound NCCCCCCCCCCCCN QFTYSVGGYOXFRQ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 239000011706 ferric diphosphate Substances 0.000 description 1
- 235000007144 ferric diphosphate Nutrition 0.000 description 1
- CADNYOZXMIKYPR-UHFFFAOYSA-B ferric pyrophosphate Chemical compound [Fe+3].[Fe+3].[Fe+3].[Fe+3].[O-]P([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])([O-])=O CADNYOZXMIKYPR-UHFFFAOYSA-B 0.000 description 1
- 229940036404 ferric pyrophosphate Drugs 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- SYECJBOWSGTPLU-UHFFFAOYSA-N hexane-1,1-diamine Chemical compound CCCCCC(N)N SYECJBOWSGTPLU-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910000398 iron phosphate Inorganic materials 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 1
- 239000004137 magnesium phosphate Substances 0.000 description 1
- 229910000157 magnesium phosphate Inorganic materials 0.000 description 1
- 229960002261 magnesium phosphate Drugs 0.000 description 1
- 235000010994 magnesium phosphates Nutrition 0.000 description 1
- FLFJVPPJGJSHMF-UHFFFAOYSA-L manganese hypophosphite Chemical compound [Mn+2].[O-]P=O.[O-]P=O FLFJVPPJGJSHMF-UHFFFAOYSA-L 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000006012 monoammonium phosphate Substances 0.000 description 1
- 235000019837 monoammonium phosphate Nutrition 0.000 description 1
- 235000019691 monocalcium phosphate Nutrition 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 235000019799 monosodium phosphate Nutrition 0.000 description 1
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- ZETYUTMSJWMKNQ-UHFFFAOYSA-N n,n',n'-trimethylhexane-1,6-diamine Chemical compound CNCCCCCCN(C)C ZETYUTMSJWMKNQ-UHFFFAOYSA-N 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- DDLUSQPEQUJVOY-UHFFFAOYSA-N nonane-1,1-diamine Chemical compound CCCCCCCCC(N)N DDLUSQPEQUJVOY-UHFFFAOYSA-N 0.000 description 1
- SXJVFQLYZSNZBT-UHFFFAOYSA-N nonane-1,9-diamine Chemical compound NCCCCCCCCCN SXJVFQLYZSNZBT-UHFFFAOYSA-N 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- OQZCJRJRGMMSGK-UHFFFAOYSA-M potassium metaphosphate Chemical compound [K+].[O-]P(=O)=O OQZCJRJRGMMSGK-UHFFFAOYSA-M 0.000 description 1
- 229940099402 potassium metaphosphate Drugs 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 229940093916 potassium phosphate Drugs 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 235000019983 sodium metaphosphate Nutrition 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 229960003339 sodium phosphate Drugs 0.000 description 1
- 235000011008 sodium phosphates Nutrition 0.000 description 1
- XWQGIDJIEPIQBD-UHFFFAOYSA-J sodium;iron(3+);phosphonato phosphate Chemical compound [Na+].[Fe+3].[O-]P([O-])(=O)OP([O-])([O-])=O XWQGIDJIEPIQBD-UHFFFAOYSA-J 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- CNALVHVMBXLLIY-IUCAKERBSA-N tert-butyl n-[(3s,5s)-5-methylpiperidin-3-yl]carbamate Chemical compound C[C@@H]1CNC[C@@H](NC(=O)OC(C)(C)C)C1 CNALVHVMBXLLIY-IUCAKERBSA-N 0.000 description 1
- RYCLIXPGLDDLTM-UHFFFAOYSA-J tetrapotassium;phosphonato phosphate Chemical compound [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O RYCLIXPGLDDLTM-UHFFFAOYSA-J 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- XJIAZXYLMDIWLU-UHFFFAOYSA-N undecane-1,1-diamine Chemical compound CCCCCCCCCCC(N)N XJIAZXYLMDIWLU-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
- 229910000166 zirconium phosphate Inorganic materials 0.000 description 1
- LEHFSLREWWMLPU-UHFFFAOYSA-B zirconium(4+);tetraphosphate Chemical compound [Zr+4].[Zr+4].[Zr+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LEHFSLREWWMLPU-UHFFFAOYSA-B 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a low-odor spraying-free polyamide composition which comprises the following components in parts by weight: 95-100 parts of polyamide, 0.01-5 parts of phosphate, 0.1-6 parts of effect pigment, 0-35 parts of auxiliary agent, 0-1 part of heat stabilizer and 0-1 part of antioxidant. The introduction of the phosphate according to the invention makes it possible to deactivate the impurities which lead to the catalytic degradation of the polyamide material, while suppressing the production of products with disturbing odor; wherein the components in the form of monomers and oligomers which remain in the production process of the polyamide are reacted and eliminated during the preparation process, further improving the odor of the low-odor nylon composition. Meanwhile, the surface defects of the spraying-free workpiece are reduced, and the brightness is improved, so that the appearance effect of the spraying workpiece is closer to that of the spraying workpiece.
Description
Technical Field
The invention relates to the field of high polymer materials, and particularly relates to a low-odor spray-free polyamide composition and a preparation method thereof.
Background
With the increasingly strict environmental requirements of national government regulations on automobiles, automobile interior material odor standards are formulated by automobile host factories to standardize parts or materials which may affect the odor of an automobile cockpit, for example, PV3900 of public automobiles formulates sampling and odor evaluation requirements for parts of automobile interiors with different sizes and specifications.
The residual monomers or oligomers in the synthesis process of polyamide materials volatilize during the injection molding and using processes, and the odor grade of the materials is seriously influenced. The polyamide material is formed by polycondensation reaction, an amide bond structure is formed by removing water molecules, the polyamide material belongs to reversible reaction, and the polyamide material can react with functional groups such as water molecules or active hydroxyl, amino, sulfydryl, carboxyl, ester groups and the like to perform inverse depolymerization reaction in a specific environment to form an oligomer or monomer structure, so that the odor is seriously influenced. Polyamide materials are commonly used in functional structural parts and exterior parts in a series of environments with no or low requirements on odor, and with the popularization of polyamide materials in automotive interior decoration in the place of steel by plastics, the material design has to consider adopting low-odor nylon materials so as to meet the strict requirements on the mechanical properties and the emission characteristics of the materials at the same time.
Enlish et al, in usp.5855623, propose the grafting of water soluble amide monomers onto polyesters, which are then added to nylon resins to obtain low odor nylon alloys. Borgrener et al, USP.6794032, add zinc sulfide, amide compatibilizer, modified polypropylene to long fiber reinforced nylon 6 to produce a low odor nylon product. CN200610028822 discloses that the use of a compatibilizer improves the odor of PA6 compositions for the grafting of polyolefins with unsaturated acids and anhydrides, which may result in an excessive odor of the material due to the presence of residual unsaturated acid and anhydride monomers.
Although the above patents relate to the odor of nylon 6 compositions, the main objective is not to reduce the odor of nylon 6 compositions, and because these methods improve the odor of nylon 6 compositions by adding adsorptive or reactive substances, the performance of nylon 6 compositions is reduced to different degrees and the manufacturing cost is increased.
With the enhancement of environmental awareness and higher pursuit of sensory experience of people, the demand of each large host factory on the spraying-free material is more and more. The requirements on the appearance of the product are increasingly improved, and unprecedented favors are expressed for rich color effects brought by the traditional spraying process, including pearl effect, metallic texture, flickering effect and the like. However, the traditional spraying process causes pollution and energy waste to the environment, on one hand, the spraying process is forced to be continuously improved to reduce the environmental pressure, and on the other hand, a spraying-free product begins to appear in the field of resin with larger usage amount, namely, metal powder pigment, pearlescent pigment and other pigments with special color effect are added into the resin to obtain the appearance effect similar to the spraying process. However, the effect pigments generally have reactivity with the matrix resin through surface modification, which improves the dispersion of the effect pigments in the resin matrix and reduces the generation of surface defects. The effect pigments are distributed in products, so that the odor problem of the nylon material is further worsened, and the odor problem restricts the further popularization of the spraying-free nylon product when the effect pigments are particularly applied to automobile interior parts, such as auxiliary instrument panels, gear shifting plectrums, adjusting buttons, gear shifting handball, decorative parts and the like.
Disclosure of Invention
The invention aims to solve the problems and provides a low-odor spray-free polyamide composition. The problem that metal impurities and other catalyst impurities introduced in the processing process and other production or use processes of polyamide catalytically degrade polyamide materials in the production, storage, transportation and use processes to generate odor can be solved. While at the same time solving the problem of odor deterioration due to the incorporation of effect pigments.
The purpose of the invention is realized as follows:
the low-odor spraying-free polyamide composition comprises the following components in parts by weight:
in one of the low odor spray-free polyamide compositions described above, the polyamide is selected from one of the group consisting of condensation products of one or more dicarboxylic acids and one or more diamines, condensation products of one or more aminocarboxylic acids, and ring-opening polymerization products of one or more cyclic lactams. Diamines include, but are not limited to, butanediamine, hexanediamine, 2-methylpentanediamine, 1, 5-pentanediamine, nonanediamine, undecanediamine, dodecanediamine, 2, 4-trimethylhexanediamine, 2,4, 4-trimethylhexanediamine, 5-methylnonanediamine, 1, 3-bis (aminomethyl) cyclohexane, 1, 4-bis (aminomethyl) cyclohexane, 1-amino-3-aminomethyl-3, 5, 5-trimethylcyclohexane, bis (4-aminocyclohexyl) methane, bis (3-methyl-4-aminocyclohexyl) methane, 2-bis (4-aminocyclohexyl) propane, bis (aminopropyl) piperazine, aminoethylpiperazine, bis (p-aminocyclohexyl) methane, 2-methyloctanediamine, trimethylhexanediamine, trimethylhexamethylenediamine, 1, 8-diaminooctane, 1, 9-diaminononane, 1, 10-diaminodecane, 1, 12-diaminododecane, m-xylylene diamine, p-xylylene diamine, and the like, and derivatives thereof. The dicarboxylic acid may be selected from aliphatic dicarboxylic acids, alicyclic dicarboxylic acids, and aromatic dicarboxylic acids. Dicarboxylic acids include, but are not limited to, adipic acid, sebacic acid, azelaic acid, dodecanedioic acid, terephthalic acid, isophthalic acid, phthalic acid, glutaric acid, pimelic acid, suberic acid, 1, 4-cyclohexanedicarboxylic acid, naphthalenedicarboxylic acid, and derivatives thereof.
In the above-mentioned low-odor spray-free polyamide composition, the phosphate is selected from at least one of orthophosphate, pyrophosphate, metaphosphate and condensed phosphate, wherein the orthophosphate is selected from at least one of dibasic phosphate, dibasic phosphate and tribasic phosphate. Phosphates include, but are not limited to, calcium phosphate, calcium hypophosphite, calcium hydrogen phosphate, calcium dihydrogen phosphate, calcium pyrophosphate, sodium phosphate, potassium phosphate, dipotassium hydrogen phosphate, potassium dihydrogen phosphate, potassium pyrophosphate, potassium polymetaphosphate, potassium tripolyphosphate, diammonium hydrogen phosphate, disodium hydrogen phosphate, sodium dihydrogen phosphate, sodium metaphosphate, sodium tripolyphosphate, triammonium phosphate, monoammonium phosphate, iron phosphate, ferric pyrophosphate, magnesium hydrogen phosphate, magnesium phosphate, manganese hypophosphite, sodium ferric pyrophosphate, and other polycondensation products.
In the above-mentioned low-odor spray-free polyamide composition, the effect pigment is at least one of a metallic pigment and a pearlescent pigment; the metal pigment is at least one of metal powder and metal powder coated by the coated substrate; the metal powder is at least one of aluminum powder, copper powder, silver powder, zinc powder and gold powder with the particle size of 1-500 μm, the shape of the metal powder is sheet, silver element, rod or sphere, the particle size is preferably 1-100 μm, and the particle size is more preferably 10-50 μm; the coating base material is selected from at least one of polyethylene wax, silicon dioxide, glycidyl ether epoxy resin, glycidyl ester epoxy resin, glycidyl amine epoxy resin, linear aliphatic epoxy resin and aliphatic epoxy resin, and accounts for 50-80% of the weight of the metal powder coated by the coating base material; the pearlescent pigment is at least one of natural fish scale pearlescent pigment with the particle size of 20-400 μm, bismuth oxychloride crystal pearlescent pigment, mica coated pearlescent pigment, silicon dioxide coated pearlescent pigment, aluminum silicate coated pearlescent pigment, aluminum borate coated pearlescent pigment, artificial mica coated pearlescent pigment and bismuth oxide coated pearlescent pigment.
The auxiliary agent in the low-odor spray-free polyamide composition comprises at least one of a filler, a toughening agent, a nucleating agent, an antistatic agent, a foaming agent, a lubricant, a release agent, an ultraviolet absorber, a hindered amine light stabilizer and a coloring agent. The filler is selected from one or more of fibrous filler, non-fibrous filler and polymer filler. The fibrous filler is selected from one or more of glass fiber, carbon fiber and organic fiber; the non-fibrous filler is one or more selected from alumina, carbon black, clay, zirconium phosphate, kaolin, calcium carbonate, copper, diatomite, graphite, mica, silica, titanium dioxide, zeolite, talc and wollastonite; the polymer filler is selected from glass beads and/or glass powder. The nucleating agent is selected from at least one of inorganic nucleating agent and organic nucleating agent with the particle diameter of less than 1 mu m; the inorganic nucleating agent is at least one of talcum powder, montmorillonite and calcium carbonate; the organic nucleating agent is selected from at least one of sodium benzoate, sorbitol dibenzyl ester and sodium carboxylate.
Further, the heat stabilizer is a copper salt heat stabilizer; the antioxidant is at least one selected from hindered phenol antioxidant, phosphite antioxidant, thioether antioxidant and polyaromatic amine antioxidant. The hindered phenol antioxidant is selected from 1,1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane (CAS: 1843-03-4), 1,3, 5-tris (3, 5-di-tert-butyl-4-hydroxybenzyl) isocyanuric acid (CAS: 27676-62-6), 4,4' -butylidebis (6-tert-butylmetacresol) (CAS: 85-60-9), n-octadecyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate (CAS: 2082-79-3), pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] (CAS: 6683-19-8), 3, 9-bis [1, 1-dimethyl-2- [ (3-tert-butyl-4-hydroxy-5-methylphenyl) propionyloxy ] ethyl ] -2,4,8, 10-tetraoxaspiro [5.5] undecane (CAS: 90498-90-1) and at least one of 1,3, 5-trimethyl-2, 4, 6-tris (3, 5-di-tert-butyl-4-hydroxybenzyl) benzene (CAS: 1709-70-2). The phosphite antioxidant is at least one selected from dioctadecyl pentaerythritol diphosphite (CAS: 3806-34-6), bis (2, 6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphite (CAS: 80693-00-1), 2-2 '-methylenebis (4, 6-dibutyl-benzyl) -2-ethylhexyl phosphite (CAS:126050-54-2), tris (2, 4-di-tert-butylphenyl) phosphite (CAS:31570-04-4), trisnonylphenyl phosphite (CAS: 26523-78-4) and 4,4' -p-isopropyldiphenyl C12-15-alcohol phosphite (CAS: 96152-48-6).
The invention also provides a preparation method of the low-odor spray-free polyamide composition, which comprises the following steps:
the method comprises the following steps: preparing raw materials according to the following components in parts by weight:
step two: drying the polyamide, the phosphate, the auxiliary agent, the heat stabilizer and the antioxidant in the step one until the mass of water accounts for 0-0.05% of the mass of the polyamide, the phosphate, the auxiliary agent, the heat stabilizer and the antioxidant;
step three: and mixing the effect pigment with the dried polyamide, phosphate, auxiliary agent, heat stabilizer and antioxidant, putting the mixture into a double-screw extruder, and cooling and granulating the mixture to obtain the low-odor spray-free polyamide composition.
In the preparation method of the low-odor spray-free polyamide composition, the product in the step three is subjected to any one of the following odor removal processes:
I. the odor removal process comprises the following steps: and (3) placing the product in the third step in an air drying oven, and drying for 30-120 minutes at a constant temperature or in a step temperature control mode within the temperature range of 60-180 ℃.
The odor removal process comprises placing the product of step three in a vacuum tank and performing the following steps (not ordered):
(1) replacing the air in the tank body with nitrogen gas, repeating the operation for 3 times, and removing oxygen in the air;
(2) sealing and vacuumizing to ensure that the internal pressure of the tank body is less than or equal to 133 pascal;
(3) heating the low-odor spraying-free polyamide composition in the vacuum tank by a heating coil arranged in an interlayer of the tank body to enable the temperature of the low-odor spraying-free polyamide composition to reach the temperature range of 60-180 ℃, and treating for 30-120 minutes in a constant temperature or step temperature control mode.
A final low odor spray-free polyamide composition resulting from the odor removal process, the low odor spray-free polyamide composition and/or articles thereof being odor rated according to the mass automobile standard PV3900, having an odor rating of no greater than 3.5.
The low-odor spray-free polyamide composition also relates to a part of the low-odor spray-free polyamide composition, which is produced by the conventional molding method comprising extrusion, blow molding, injection molding, mould pressing and the like, and the part can be a finished product or a semi-finished product and comprises the following components in parts by weight:
95-100 parts of polyamide;
0.01-5 parts of phosphate;
0.1-6 parts of effect pigment.
The compositions may be produced by using a one-shot process, or may be produced by a masterbatch process, for example by conventionally making high-strength masterbatches of the effect pigments and then diluting the concentrate to the final product to obtain a part, whether by the one-shot process or the masterbatch process, it being understood that the proportions or parts by weight of the above components in the part may be suitably adjusted without departing from the intent of the present invention.
The invention has the following beneficial effects:
1. the introduction of the phosphates of the present invention can inactivate impurities which lead to the catalytic degradation of the polyamide material, while suppressing the production of products with interfering odor.
2. The residual monomer and oligomer components in the production process of polyamide are eliminated by reaction in the preparation process, and the odor of the low-odor nylon composition is further improved.
3. The invention uses the odor removal process to carry out targeted and high-efficiency removal on odor molecules introduced by reducing other components, particularly a step temperature control mode, strongly removes odor micromolecule components with different degrees of affinities with a polyamide composition matrix at different temperatures, reduces the influence of the raised temperature on the polyamide composition to the minimum, and prevents new products with interference odor from being generated in a high-temperature or high-temperature aerobic environment.
The invention greatly reduces the gas generated in the production process and/or the forming process of the nylon material, greatly reduces the appearance defects caused by the gas for products which particularly focus on appearance and surface aesthetic effect, such as spraying-free products, and particularly greatly improves the surface brightness of the spraying-free polyamide composition by introducing phosphate and post-processing technology through the technical scheme provided by the invention.
Detailed Description
The present invention will be further described with reference to the following examples.
The manufacturers and types of raw materials used in the comparative examples and examples are shown in table 1:
TABLE 1 raw material information for examples 1-8 and comparative examples 1-4
Effect pigment I: 5 mu m of rod-shaped aluminum powder coated by low molecular polyethylene wax;
effect pigment II: flaky aluminum powder with the particle size of 25 mu m;
effect pigment III: flake copper powder with the particle size of 50 mu m;
effect pigment IV: the mixture of flake aluminum powder with the particle size of 80 mu m and natural fish scale pearlescent pigment with the particle size of 150 mu m in a ratio of 3: 1;
effect pigment V: the mixture of the glycidyl ether epoxy resin with the grain diameter of 80 mu m coated strip aluminum powder and the bismuth oxychloride crystal pearlescent pigment with the grain diameter of 50 mu m is mixed in a ratio of 2: 1;
effect pigment VI: flake copper powder with the particle size of 25 mu m;
in order to meet the processing requirements, the lubricant, the heat stabilizer and the antioxidant with the same type and content are added in the examples and the comparative examples; the lubricant is pentaerythritol stearate which accounts for 0.3 percent of the total mass of the raw materials; the heat stabilizer is selected from the following components in a mass ratio of 1: 6, a mixture of CuI and KI, which accounts for 0.2% of the total mass of the raw materials; the antioxidant is bis (2, 6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphate, which accounts for 0.3 percent of the total mass of the raw materials.
Drying the resin, the phosphate, the auxiliary agent, the heat stabilizer and the antioxidant in the formula compositions of the examples and the comparative examples until the mass of water accounts for 0-0.05 percent of the mass of each; mixing the components, putting the mixture into a double-screw extruder, and performing melt extrusion, wherein the extrusion temperature is 230-260 ℃ according to the types of resins, and PA6 is used; PA66 at 260 ℃ and 290 ℃ water-cooling, air-cooling and granulating the extruded sample strips to obtain the low-odor spray-free polyamide composition.
Example 1
Preparing raw materials according to the following components in parts by weight:
PA66 99kg；
1kg of disodium hydrogen phosphate;
2kg of effect pigment I;
the low-odor spray-free polyamide composition obtained by the blending extrusion process is further subjected to the odor removal process of the invention, wherein the odor removal process comprises the steps of placing the preliminarily obtained low-odor spray-free polyamide composition into a vacuum tank, and carrying out the following steps:
(1) replacing the air in the tank body with nitrogen gas, repeating the operation for 3 times, and removing oxygen in the air;
(2) sealing and vacuumizing to ensure that the internal pressure of the tank body is less than or equal to 133 pascal;
(3) heating the low-odor spraying-free polyamide composition in the vacuum tank by a heating coil arranged on an interlayer of the tank body to enable the temperature of the low-odor spraying-free polyamide composition to reach 60 ℃, and treating for 120 minutes in a constant temperature mode;
example 2
Preparing raw materials according to the following components in parts by weight:
PA66 99kg；
1kg of disodium hydrogen phosphate;
3kg of effect pigment II;
the low-odor spray-free polyamide composition obtained by the blending extrusion process is further subjected to the odor removal process of the invention, wherein the odor removal process comprises the steps of placing the preliminarily obtained low-odor spray-free polyamide composition into a vacuum tank, and carrying out the following steps:
(1) replacing the air in the tank body with nitrogen gas, repeating the operation for 3 times, and removing oxygen in the air;
(2) sealing and vacuumizing to ensure that the internal pressure of the tank body is less than or equal to 133 pascal;
(3) heating the low-odor spraying-free polyamide composition in the vacuum tank by a heating coil arranged in an interlayer of the tank body to enable the temperature of the low-odor spraying-free polyamide composition to reach 180 ℃, and treating for 30 minutes in a constant temperature mode;
example 3
Preparing raw materials according to the following components in parts by weight:
PA66 99kg；
1kg of disodium hydrogen phosphate;
1kg of effect pigment III;
the low-odor spray-free polyamide composition obtained by the blending extrusion process is further subjected to the odor removal process of the invention, wherein the odor removal process comprises the steps of placing the preliminarily obtained low-odor spray-free polyamide composition into a vacuum tank, and carrying out the following steps:
(1) replacing the air in the tank body with nitrogen gas, repeating the operation for 3 times, and removing oxygen in the air;
(2) sealing and vacuumizing to ensure that the internal pressure of the tank body is less than or equal to 133 pascal;
(3) heating the low-odor spraying-free polyamide composition in the vacuum tank by a heating coil arranged on an interlayer of the tank body to enable the temperature of the low-odor spraying-free polyamide composition to reach 120 ℃, and treating for 45 minutes in a constant temperature mode;
example 4
Preparing raw materials according to the following components in parts by weight:
PA66 99kg；
1kg of disodium hydrogen phosphate;
4kg of effect pigment IV;
the low-odor spray-free polyamide composition obtained by granulation through the blending extrusion process is further subjected to the odor removal process, and the odor removal process comprises the following steps: placing the preliminarily obtained low-odor spray-free polyamide composition in an air drying oven, drying at the temperature of 60 ℃ for 120 minutes, and drying at the temperature of 180 ℃ for 30 minutes;
example 5
Preparing raw materials according to the following components in parts by weight:
PA6 98kg；
2kg of disodium hydrogen phosphate;
effect pigment V2 kg;
the low-odor spray-free polyamide composition obtained by the blending extrusion process is further subjected to the odor removal process of the invention, wherein the odor removal process comprises the steps of placing the preliminarily obtained low-odor spray-free polyamide composition into a vacuum tank, and carrying out the following steps:
(1) replacing the air in the tank body with nitrogen gas, repeating the operation for 3 times, and removing oxygen in the air;
(2) sealing and vacuumizing to ensure that the internal pressure of the tank body is less than or equal to 133 pascal;
(3) heating the low-odor spray-free polyamide composition in the vacuum tank by a heating coil arranged in an interlayer of the tank body to enable the temperature of the low-odor spray-free polyamide composition to reach 60 ℃, carrying out constant temperature treatment for 120 minutes, carrying out constant temperature treatment for 30 minutes at the temperature of 120 ℃, and carrying out constant temperature treatment for 10 minutes at the temperature of 180 ℃;
example 6
Preparing raw materials according to the following components in parts by weight:
the low-odor spray-free polyamide composition obtained by the blending extrusion process is further subjected to the odor removal process of the invention, wherein the odor removal process comprises the steps of placing the preliminarily obtained low-odor spray-free polyamide composition into a vacuum tank, and carrying out the following steps:
(1) replacing the air in the tank body with nitrogen gas, repeating the operation for 3 times, and removing oxygen in the air;
(2) sealing and vacuumizing to ensure that the internal pressure of the tank body is less than or equal to 133 pascal;
(3) heating the low-odor spray-free polyamide composition in the vacuum tank by a heating coil arranged in an interlayer of the tank body, and then carrying out constant temperature treatment at the temperature of 120 ℃ for 30 minutes and at the temperature of 180 ℃ for 10 minutes;
example 7
Preparing raw materials according to the following components in parts by weight:
the low-odor spray-free polyamide composition obtained by the blending extrusion process is further subjected to the odor removal process of the invention, wherein the odor removal process comprises the steps of placing the preliminarily obtained low-odor spray-free polyamide composition into a vacuum tank, and carrying out the following steps:
(1) heating the low-odor spray-free polyamide composition in the vacuum tank by a heating coil arranged in an interlayer of the tank body, and performing constant temperature treatment at the temperature of 20 ℃ for 20 minutes and at the temperature of 180 ℃ for 20 minutes;
(2) sealing and vacuumizing to ensure that the internal pressure of the tank body is less than or equal to 133 pascal;
(3) replacing the air in the tank body with nitrogen gas, repeating the operation for 3 times, and removing oxygen in the air;
example 8
Preparing raw materials according to the following components in parts by weight:
the low-odor spray-free polyamide composition obtained by the blending extrusion process is further subjected to the odor removal process of the invention, wherein the odor removal process comprises the steps of placing the preliminarily obtained low-odor spray-free polyamide composition into a vacuum tank, and carrying out the following steps:
(1) sealing and vacuumizing to ensure that the internal pressure of the tank body is less than or equal to 133 pascal;
(2) replacing the air in the tank body with nitrogen gas, repeating the operation for 3 times, and removing oxygen in the air;
(3) heating the low-odor spraying-free polyamide composition in the vacuum tank by a heating coil arranged on an interlayer of the tank body to enable the temperature of the low-odor spraying-free polyamide composition to reach 120 ℃, and treating for 45 minutes in a constant temperature or step temperature control mode;
comparative example 1
Step 1: preparing raw materials according to the following components in parts by weight:
PA66 99kg；
1kg of disodium hydrogen phosphate;
2kg of effect pigment I;
step 2: and (3) mixing the components in the step (1), putting the mixture into a double-screw extruder for melt extrusion, and then cooling and granulating to obtain the product of the comparative example 1.
Comparative example 2
Step 1: preparing raw materials according to the following components in parts by weight:
PA6 98kg；
2kg of disodium hydrogen phosphate;
3kg of effect pigment II;
step 2: and (3) mixing the components in the step (1), putting the mixture into a double-screw extruder for melt extrusion, and then cooling and granulating to obtain the product of the comparative example 2.
Comparative example 3
Step 1: preparing raw materials according to the following components in parts by weight:
step 2: and (3) mixing the components in the step (1), putting the mixture into a double-screw extruder for melt extrusion, and cooling and granulating to obtain the product of the comparative example 3.
Comparative example 4
Preparing raw materials according to the following components in parts by weight:
the low-odor spray-free polyamide composition obtained by the blending extrusion process is further subjected to the odor removal process of the invention, wherein the odor removal process comprises the steps of placing the preliminarily obtained low-odor spray-free polyamide composition into a vacuum tank, and carrying out the following steps:
(1) replacing the air in the tank body with nitrogen gas, repeating the operation for 3 times, and removing oxygen in the air;
(2) sealing and vacuumizing to ensure that the internal pressure of the tank body is less than or equal to 133 pascal;
(3) the low-odor spray-free polyamide composition inside the vacuum tank was heated by a heating coil sandwiched between the tank bodies, and was subjected to a constant temperature treatment at a temperature of 20 ℃ for 20 minutes and at a temperature of 180 ℃ for 20 minutes.
The above examples and comparative examples were molded into 10cm × 5cm × 1.2mm thick samples, and the odor was evaluated according to the mass-vehicle standard PV3900, the samples were placed in 1L sealed odor evaluation bottles and stored at 80 ℃ ± 2 ℃ for 2h ± 10min, the odor bottles were taken out and cooled to the inspection room temperature of 60 ℃ ± 5 ℃, evaluated by 3 testers, resealed after evaluation and stored at 80 ℃ ± 2 ℃ for 2h ± 10min, the odor bottles were taken out and cooled to the inspection room temperature of 60 ℃ ± 5 ℃, evaluated by another 2 testers, and 5 test results were obtained in total, the evaluation criteria were evaluated according to the following criteria, and the average of the final 5 test results was the odor grade, i.e., the lower the odor grade, the smaller the odor grade was more acceptable.
Odor grade 1: can not feel
Odor grade 2: can be sensed without disturbing the human body
Odor grade 3: can be clearly sensed without disturbing the human body
Odor grade 4: disturbing the human body
Odor grade 5: strong aversion to cold
Odor grade 6: are difficult to tolerate
The odor rating may be given according to an arithmetic mean.
The brightness of the surface of the sample plate was measured by an LAB colorimeter (model CM2600D, manufacturer Meinenda), and the average L value of the results obtained by using 5 sample plates of the same composition was used to characterize the brightness.
The results of the performance tests of examples 1-8 and comparative examples 1-4 are shown in Table 2:
TABLE 2 test results of examples 1-8 and comparative examples 1-4
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | |
| Odor grade | 2.8 | 3.0 | 3.5 | 3.5 | 2.7 | 3.4 |
| Value of L | 75.5 | 80.5 | 79.3 | 81.5 | 69.3 | 72.3 |
| Example 7 | Example 8 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | |
| Odor grade | 2.9 | 3.3 | 5.5 | 5.5 | 5.4 | 3.9 |
| Value of L | 60.1 | 60.4 | 70.3 | 74.5 | 61.5 | 50.3 |
By comparing example 1 with comparative example 1, example 2 with comparative example 2, example 6 with comparative example 3, example 7 with comparative example 4, the low odor spray-free polyamide compositions produced using the disclosed technical solution have significantly improved odor and higher surface brightness (L value), and although the L value is reduced to some extent after the addition of fillers or glass fibers compared to the non-filled or non-reinforced product, the higher surface L value is maintained using the disclosed technique.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.
Claims (4)
1. The application of phosphate in reducing the odor of a spraying-free polyamide composition is characterized in that the spraying-free polyamide composition comprises the following components in parts by weight:
95-100 parts of polyamide;
0.01-5 parts of phosphate;
0.1-6 parts of effect pigment;
0-35 parts of an auxiliary agent;
0-1 part of a heat stabilizer;
0-1 part of antioxidant;
the auxiliary agent comprises at least one of a filler, a toughening agent, a nucleating agent, an antistatic agent, a foaming agent, a lubricant, a release agent, an ultraviolet absorbent, a hindered amine light stabilizer and a coloring agent;
the phosphate is at least one selected from orthophosphate, metaphosphate and condensed phosphate, and the orthophosphate is at least one selected from dibasic phosphate, hydrogen phosphate and tribasic phosphate;
the effect pigment is at least one of metal pigment and pearlescent pigment;
the metal pigment is at least one of metal powder or metal powder coated by a coated substrate;
the metal powder is at least one of aluminum powder, copper powder, silver powder, zinc powder and gold powder with the particle size of 1-500 mu m, and the shape of the metal powder is sheet, silver element, rod or sphere; the coating base material is at least one of polyethylene wax, silicon dioxide, glycidyl ether epoxy resin, glycidyl ester epoxy resin, glycidyl amine epoxy resin and linear aliphatic epoxy resin, and accounts for 25-80% of the weight of the metal powder coated by the coating base material;
the pearlescent pigment is at least one of natural fish scale pearlescent pigment with the particle size of 20-400 μm, bismuth oxychloride crystal pearlescent pigment, mica coated pearlescent pigment, silicon dioxide coated pearlescent pigment, aluminum silicate coated pearlescent pigment, aluminum borate coated pearlescent pigment and bismuth oxide coated pearlescent pigment;
the spraying-free polyamide composition is subjected to an odor removal process;
the odor removal process comprises the following steps: placing the spraying-free polyamide composition in an air drying oven, and drying for 30-120 minutes at a constant temperature or in a step temperature control mode within the range of 60-180 ℃; or
The odor removal process comprises the following steps: placing the spray-free polyamide composition in a vacuum can and performing the following steps:
(1) replacing the air in the tank body with nitrogen gas, repeating the operation for 3 times, and removing oxygen in the air;
(2) sealing and vacuumizing to ensure that the internal pressure of the tank body is less than or equal to 133 pascal;
(3) heating the spraying-free polyamide composition in the vacuum tank by a heating coil arranged on an interlayer of the tank body to enable the temperature of the spraying-free polyamide composition to reach the temperature range of 60-180 ℃, and drying for 30-120 minutes in a constant temperature or step temperature control mode; the order of the steps (1) to (3) of the odor removal process can be adjusted at will.
2. Use of a phosphate salt according to claim 1 for reducing the odor of a spray-free polyamide composition, wherein the heat stabilizer is a copper salt heat stabilizer.
3. Use of a phosphate salt according to claim 1 for reducing the odor of a spray-free polyamide composition, wherein the antioxidant is selected from at least one of hindered phenolic antioxidants, phosphite antioxidants, thioether antioxidants and polyaromatic antioxidants.
4. Use of a phosphate salt according to claim 1 for reducing the odor of a spray-free polyamide composition, wherein the spray-free polyamide composition is prepared by a process comprising the steps of:
the method comprises the following steps: preparing raw materials according to the following components in parts by weight:
95-100 parts of polyamide;
0.01-5 parts of phosphate;
0.1-6 parts of effect pigment;
0-35 parts of an auxiliary agent;
0-1 part of a heat stabilizer;
0-1 part of antioxidant;
the auxiliary agent comprises at least one of a filler, a toughening agent, a nucleating agent, an antistatic agent, a foaming agent, a lubricant, a release agent, an ultraviolet absorbent, a hindered amine light stabilizer and a coloring agent;
step two: drying the polyamide, the phosphate, the auxiliary agent, the heat stabilizer and the antioxidant in the step one until the mass of water accounts for 0-0.05% of the mass of the polyamide, the phosphate, the auxiliary agent, the heat stabilizer and the antioxidant;
step three: mixing the effect pigment with the dried polyamide, phosphate, auxiliary agent, heat stabilizer and antioxidant, putting the mixture into a double-screw extruder for melt extrusion, and then cooling and granulating the mixture.
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