CN117659657A - Wear-resistant unsaturated polyester molding compound and preparation method thereof - Google Patents
Wear-resistant unsaturated polyester molding compound and preparation method thereof Download PDFInfo
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- CN117659657A CN117659657A CN202311664372.XA CN202311664372A CN117659657A CN 117659657 A CN117659657 A CN 117659657A CN 202311664372 A CN202311664372 A CN 202311664372A CN 117659657 A CN117659657 A CN 117659657A
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- unsaturated polyester
- wear
- resistant
- resistant additive
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- 238000000465 moulding Methods 0.000 title claims abstract description 52
- 150000001875 compounds Chemical class 0.000 title claims abstract description 51
- 229920006305 unsaturated polyester Polymers 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 239000000654 additive Substances 0.000 claims abstract description 65
- 230000000996 additive effect Effects 0.000 claims abstract description 65
- 229920006337 unsaturated polyester resin Polymers 0.000 claims abstract description 57
- 239000012815 thermoplastic material Substances 0.000 claims abstract description 48
- 239000002280 amphoteric surfactant Substances 0.000 claims abstract description 40
- 239000007787 solid Substances 0.000 claims abstract description 36
- 239000000945 filler Substances 0.000 claims abstract description 30
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 28
- 239000003999 initiator Substances 0.000 claims abstract description 28
- 238000002156 mixing Methods 0.000 claims abstract description 28
- 239000012779 reinforcing material Substances 0.000 claims abstract description 28
- 239000003063 flame retardant Substances 0.000 claims abstract description 27
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000049 pigment Substances 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 15
- 239000002904 solvent Substances 0.000 claims description 26
- 238000005299 abrasion Methods 0.000 claims description 25
- 239000006185 dispersion Substances 0.000 claims description 20
- 239000000843 powder Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 14
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 10
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 8
- 238000007670 refining Methods 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 4
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 4
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 32
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 19
- 239000000203 mixture Substances 0.000 description 13
- -1 polytetrafluoroethylene Polymers 0.000 description 12
- 239000003365 glass fiber Substances 0.000 description 11
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 10
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 10
- 238000001035 drying Methods 0.000 description 10
- 238000009472 formulation Methods 0.000 description 10
- 239000006082 mold release agent Substances 0.000 description 10
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 239000004641 Diallyl-phthalate Substances 0.000 description 8
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 description 6
- 238000001291 vacuum drying Methods 0.000 description 6
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005469 granulation Methods 0.000 description 5
- 230000003179 granulation Effects 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 5
- 229940117986 sulfobetaine Drugs 0.000 description 5
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 238000000498 ball milling Methods 0.000 description 4
- 235000019400 benzoyl peroxide Nutrition 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical group [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000011256 inorganic filler Substances 0.000 description 4
- 229910003475 inorganic filler Inorganic materials 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 4
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 4
- BJELTSYBAHKXRW-UHFFFAOYSA-N 2,4,6-triallyloxy-1,3,5-triazine Chemical compound C=CCOC1=NC(OCC=C)=NC(OCC=C)=N1 BJELTSYBAHKXRW-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 3
- 235000013539 calcium stearate Nutrition 0.000 description 3
- 239000008116 calcium stearate Substances 0.000 description 3
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 3
- 229940075507 glyceryl monostearate Drugs 0.000 description 3
- 239000002563 ionic surfactant Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 3
- 239000000347 magnesium hydroxide Substances 0.000 description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
- 239000001788 mono and diglycerides of fatty acids Substances 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- 238000005550 wet granulation Methods 0.000 description 3
- 239000000080 wetting agent Substances 0.000 description 3
- ROLAGNYPWIVYTG-UHFFFAOYSA-N 1,2-bis(4-methoxyphenyl)ethanamine;hydrochloride Chemical compound Cl.C1=CC(OC)=CC=C1CC(N)C1=CC=C(OC)C=C1 ROLAGNYPWIVYTG-UHFFFAOYSA-N 0.000 description 2
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 description 2
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- QFFVPLLCYGOFPU-UHFFFAOYSA-N barium chromate Chemical compound [Ba+2].[O-][Cr]([O-])(=O)=O QFFVPLLCYGOFPU-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 2
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 2
- YQEMORVAKMFKLG-UHFFFAOYSA-N glycerine monostearate Natural products CCCCCCCCCCCCCCCCCC(=O)OC(CO)CO YQEMORVAKMFKLG-UHFFFAOYSA-N 0.000 description 2
- SVUQHVRAGMNPLW-UHFFFAOYSA-N glycerol monostearate Natural products CCCCCCCCCCCCCCCCC(=O)OCC(O)CO SVUQHVRAGMNPLW-UHFFFAOYSA-N 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 2
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229940045870 sodium palmitate Drugs 0.000 description 2
- GGXKEBACDBNFAF-UHFFFAOYSA-M sodium;hexadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCC([O-])=O GGXKEBACDBNFAF-UHFFFAOYSA-M 0.000 description 2
- WYKYCHHWIJXDAO-UHFFFAOYSA-N tert-butyl 2-ethylhexaneperoxoate Chemical compound CCCCC(CC)C(=O)OOC(C)(C)C WYKYCHHWIJXDAO-UHFFFAOYSA-N 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- NFMWFGXCDDYTEG-UHFFFAOYSA-N trimagnesium;diborate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]B([O-])[O-].[O-]B([O-])[O-] NFMWFGXCDDYTEG-UHFFFAOYSA-N 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- KZEVSDGEBAJOTK-UHFFFAOYSA-N 1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-2-[5-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]-1,3,4-oxadiazol-2-yl]ethanone Chemical compound N1N=NC=2CN(CCC=21)C(CC=1OC(=NN=1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)=O KZEVSDGEBAJOTK-UHFFFAOYSA-N 0.000 description 1
- WJYAJBDKANFOID-UHFFFAOYSA-N 2-(dodecylamino)propanoic acid Chemical compound CCCCCCCCCCCCNC(C)C(O)=O WJYAJBDKANFOID-UHFFFAOYSA-N 0.000 description 1
- YJLUBHOZZTYQIP-UHFFFAOYSA-N 2-[5-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-1,3,4-oxadiazol-2-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1=NN=C(O1)CC(=O)N1CC2=C(CC1)NN=N2 YJLUBHOZZTYQIP-UHFFFAOYSA-N 0.000 description 1
- WBEHKXQILJKFIN-UHFFFAOYSA-N 2-amino-2-methyltetradecanoic acid Chemical compound CCCCCCCCCCCCC(C)(N)C(O)=O WBEHKXQILJKFIN-UHFFFAOYSA-N 0.000 description 1
- CGLVZFOCZLHKOH-UHFFFAOYSA-N 8,18-dichloro-5,15-diethyl-5,15-dihydrodiindolo(3,2-b:3',2'-m)triphenodioxazine Chemical compound CCN1C2=CC=CC=C2C2=C1C=C1OC3=C(Cl)C4=NC(C=C5C6=CC=CC=C6N(C5=C5)CC)=C5OC4=C(Cl)C3=NC1=C2 CGLVZFOCZLHKOH-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- ZDNFTNPFYCKVTB-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,4-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=C(C(=O)OCC=C)C=C1 ZDNFTNPFYCKVTB-UHFFFAOYSA-N 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 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
- 230000007774 longterm Effects 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- CXOHVCKJGLFRKZ-UHFFFAOYSA-N tert-butyl but-2-eneperoxoate Chemical compound CC=CC(=O)OOC(C)(C)C CXOHVCKJGLFRKZ-UHFFFAOYSA-N 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/06—Unsaturated polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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 wear-resistant unsaturated polyester molding compound and a preparation method thereof. The wear-resistant unsaturated polyester molding compound is prepared from solid unsaturated polyester resin, a wear-resistant additive, a filler, a cross-linking agent, an initiator, a release agent, a reinforcing material, a flame retardant and pigment, wherein the wear-resistant additive is prepared from 10-25 parts of a pretreated nonpolar thermoplastic material obtained by treating with an amphoteric surfactant, and a pretreated inorganic whisker obtained by treating with the amphoteric surfactant and a silane coupling agent: 70-85: mixing evenly in a weight ratio of 0 to 2; the dosage of the wear-resistant additive is 15-30wt% of the sum of the dosage of the solid unsaturated polyester resin and the wear-resistant additive. The wear-resistant unsaturated polyester molding compound has low raw material cost, and high wear resistance while maintaining good mechanical property, flame retardant property and heat resistance.
Description
Technical Field
The invention relates to a thermosetting molding compound, in particular to a wear-resistant unsaturated polyester molding compound and a preparation method thereof.
Background
The unsaturated polyester molding compound is used as a thermosetting material, and has the characteristics of excellent weather resistance, mechanical property, electrical insulation, simple molding and processing and the like, so that the unsaturated polyester molding compound is widely applied to electrical appliance control devices, electrical connectors, circuit breakers, switches and other electrical appliance insulation structural components and occasions with higher requirements on mechanical and electrical properties. Under the working state of the alternating current contactor, the contact support frame is continuously scraped with a metal contact in the alternating current contactor, so that the phenomenon of powder falling is generated, the insulating performance of the alternating current contactor is affected, and the service life of the alternating current contactor is shortened. The wear resistance of the unsaturated polyester molding compound is improved, and the use requirement of the alternating current contactor support frame is satisfied.
In the prior art, the common methods for improving the wear resistance of the unsaturated polyester molding compound mainly comprise the following two methods: a lubricant such as polytetrafluoroethylene, molybdenum disulfide and graphite is added in the formula of unsaturated polyester molding compound to improve the smoothness and reduce the relative friction coefficient with the scraping of metal contacts so as to achieve the aim of improving the wear resistance. As disclosed in the prior application of the applicant, the invention with publication number of CN102504123A, the abrasion loss of the prepared unsaturated polyester molding compound is small and the mechanical and electrical properties are good by using an organic lubricant (any one or more than two selected from polytetrafluoroethylene powder, polyamide powder, polyoxymethylene powder and polyamide-imide powder). The other is to add a large amount of inorganic filler with high hardness such as alumina, silica and the like into the formula of the unsaturated polyester molding compound, so as to improve the hardness and the load-resisting capacity, further improve the compressive strength and achieve the aim of improving the wear resistance of the unsaturated polyester molding compound.
Both of the above methods can improve the abrasion resistance of the unsaturated polyester molding compound, but have obvious drawbacks. The former has high cost of lubricant, and excessive addition amount can influence the heat resistance and flame retardance of the molding compound; in addition, the added lubricating material is usually weak in binding force with the base materials such as unsaturated polyester resin and the like, and the contact support frame for production is easy to separate from the base materials when used at high temperature, damp and hot or under long-term conditions, so that the wear resistance is reduced. The brittleness of the unsaturated polyester molding compound is increased due to the introduction of the inorganic filler, so that the mechanical property is obviously reduced, and the produced contact support frame is extremely easy to generate brittle fracture in the working state; on the other hand, an increase in the hardness of unsaturated polyester molding compounds also leads to an increase in the difficulty of production.
Through searching, no report is found that the organic material and the inorganic material are modified by adopting the amphoteric surfactant, and the modified material is compounded to be used as the wear-resistant additive, so that the raw material cost can be reduced, and the wear resistance of the obtained unsaturated polyester resin molding compound is improved while the good mechanical property, flame retardant property and heat resistance are maintained.
Disclosure of Invention
The invention aims to solve the technical problem of providing the wear-resistant unsaturated polyester molding compound with low raw material cost, good mechanical property, flame retardant property and heat resistance and high wear resistance and the preparation method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
the wear-resistant unsaturated polyester molding compound is prepared from solid unsaturated polyester resin, a wear-resistant additive, a filler, a cross-linking agent, an initiator, a release agent, a reinforcing material, a flame retardant and pigment, and is characterized in that the wear-resistant additive is prepared by a method comprising the following steps:
a) Hydrophilic pretreatment is carried out on the nonpolar thermoplastic material by using an amphoteric surfactant in a dispersion solvent to obtain a pretreated nonpolar thermoplastic material;
b) In a dispersion solvent, carrying out lipophilic pretreatment on the inorganic whiskers by using an amphoteric surfactant to obtain pretreated inorganic whiskers;
c) The method comprises the steps of mixing a pretreated nonpolar thermoplastic material, pretreated inorganic whiskers and a silane coupling agent according to a ratio of 10-25: 70-85: mixing uniformly in a weight ratio of 0-2 to obtain the composite material;
the dosage of the wear-resistant additive is 15-30wt% of the sum of the dosage of the solid unsaturated polyester resin and the wear-resistant additive.
In the above technical solution, the nonpolar thermoplastic material, the inorganic whiskers, the amphoteric surfactant and the dispersing solvent involved in the method for preparing the abrasion-resistant additive may be conventional choices in the art. The following are preferred:
the nonpolar thermoplastic material is any one or the combination of more than two selected from high density polyethylene, ultra-high molecular weight polyethylene and polyether-ether-ketone; the particle size of the nonpolar thermoplastic material is preferably 50 to 150 μm.
The inorganic whisker is one or more than two of ceramic whisker and inorganic salt whisker, wherein the ceramic whisker can be one or more than two of SiC whisker, potassium titanate whisker, aluminum borate whisker, magnesium borate whisker and the like, and the inorganic salt whisker can be calcium sulfate whisker and/or calcium carbonate whisker and the like; the inorganic whisker is preferably an inorganic whisker with a diameter of 1-5 μm and a length of 50-100 μm.
The amphoteric surfactant is one or more than two selected from dodecyl ethoxy sulfobetaine, dodecyl hydroxypropyl sulfobetaine, dodecyl aminopropionic acid and glyceryl monostearate;
the dispersion solvent is one or more selected from methyl acetate, ethyl acetate and n-butyl acetate.
In the above technical solution, in the steps a) and b) of preparing the wear-resistant additive, the hydrophilic pretreatment of the amphoteric surfactant on the nonpolar thermoplastic material or the lipophilic pretreatment on the inorganic whisker is generally achieved by fully mixing the amphoteric surfactant and the nonpolar thermoplastic material or the inorganic whisker in a dispersion solvent. The thorough mixing can be achieved by means of equipment such as homogenizers, ultrasonic processors or high-speed mixers, preferably at a temperature of less than or equal to 50℃for a period of usually 3 to 10 minutes, and after thorough mixing the material is dried (drying is usually carried out at 60 to 80 ℃) to give a pretreated nonpolar thermoplastic material or pretreated inorganic whiskers. In both steps a) and b), the weight ratio of amphoteric surfactant to non-polar thermoplastic material or inorganic whisker is preferably 1:20 to 40, and more preferably, the amount of the dispersing solvent (g) is 5 to 15 times the weight (g) of the amphoteric surfactant.
The applicant finds in experiments that the silane coupling agent added in the step c) of preparing the wear-resistant additive can improve the binding force between the pretreated inorganic whiskers and the pretreated nonpolar thermoplastic material plastic, and the high binding force is beneficial to improving the strength of the material, so that the wear resistance of the obtained molding compound is improved, and meanwhile, the strength of the molding compound can be ensured. It is therefore preferred that the weight ratio of the pretreated nonpolar thermoplastic material, the pretreated inorganic whiskers and the silane coupling agent is from 10 to 25: 70-85: 0.5 to 2.
When the prepared wear-resistant additive is instantly applied to the subsequent working procedures, the pretreated nonpolar thermoplastic material, the pretreated inorganic whisker and the silane coupling agent are only required to be uniformly mixed. In order to avoid agglomeration and other phenomena in the powder obtained by mixing, the method for preparing the wear-resistant additive preferably further comprises a step d), specifically, granulating the powder obtained by uniformly mixing the pretreated nonpolar thermoplastic material, the pretreated inorganic whisker and the silane coupling agent, and further refining the obtained particles to obtain the wear-resistant additive. In the step d), wet granulation is generally adopted (the wetting agent adopted in the granulation can be methanol, ethanol, glycol or butanol and other conventional choices), the granularity of the granules obtained by granulation is refined by crushing the granules obtained by granulation and then ball milling, the powder obtained by ball milling is sieved (100-200 meshes), and the sieved substances are collected to obtain the wear-resistant additive. The silane coupling agent involved in step d) is a conventional choice in the prior art and may specifically be one or a combination of two or more selected from the group consisting of gamma-methacryloxypropyl trimethoxysilane, vinyltriethoxysilane and vinyltrimethoxysilane.
In the above technical scheme, the dosage of the wear-resistant additive is more preferably 18-25 wt% of the sum of the dosage of the solid unsaturated polyester resin and the wear-resistant additive.
In the technical scheme, the solid unsaturated polyester resin, the wear-resistant additive, the filler, the cross-linking agent, the initiator, the release agent, the reinforcing material, the flame retardant and the pigment are prepared from the following components in parts by weight: 25-35 parts of solid unsaturated polyester resin, 5-15 parts of wear-resistant additive, 30-45 parts of filler, 3-5 parts of cross-linking agent, 0.5-1.5 parts of initiator, 1-2 parts of release agent, 15-25 parts of reinforcing material, 0-5 parts of flame retardant and 0-5 parts of pigment. Further preferred are: 25-35 parts of solid unsaturated polyester resin, 8-12 parts of wear-resistant additive, 35-45 parts of filler, 3-5 parts of cross-linking agent, 0.5-1.5 parts of initiator, 1-2 parts of release agent, 15-25 parts of reinforcing material, 0.5-5 parts of flame retardant and 0.5-5 parts of pigment.
In the above technical scheme, the specific choices of the components of the solid unsaturated polyester resin, the filler, the cross-linking agent, the initiator, the release agent, the reinforcing material, the flame retardant and the pigment are the same as those in the prior art, and the following are preferable:
the solid unsaturated polyester resin is one or the combination of more than two of o-benzene unsaturated polyester resin, m-benzene unsaturated polyester resin and p-benzene unsaturated polyester resin. The softening point of the solid unsaturated polyester resin is 85-105 ℃.
The filler is one or the combination of more than two of aluminum hydroxide, magnesium hydroxide, calcium carbonate, silicon micropowder, quartz powder, mica powder and kaolin. When the filler is selected to contain aluminum hydroxide and/or magnesium hydroxide, the formulation of the abrasion-resistant unsaturated polyester molding compound of the invention may be free of flame retardants.
The cross-linking agent is one or a combination of more than two selected from triallyl cyanurate, diallyl phthalate, diallyl isophthalate, diallyl terephthalate and styrene;
the initiator is one or more than two selected from tert-butyl peroxybenzoate, dicumyl peroxide, dibenzoyl peroxide, tert-butyl peroxybutenoate and tert-butyl peroxy-2-ethylhexanoate.
The release agent is one or the combination of more than two of calcium stearate, zinc stearate, magnesium stearate, pentaerythritol stearate and sodium palmitate.
The reinforcing material is chopped alkali-free glass fiber, more preferably chopped alkali-free glass fiber with the diameter of 11-15 mu m and the length of 3-6 mm.
The flame retardant is one or the combination of more than two of zinc borate, aluminum hydroxide, magnesium hydroxide, antimony trioxide, molybdenum trioxide and tributyl phosphate.
The pigment is one or the combination of more than two of phthalocyanine blue, phthalocyanine green, iron red, permanent yellow, permanent violet and carbon black.
The invention also provides a preparation method of the wear-resistant unsaturated polyester molding compound, which comprises the following steps:
1) Preparing an abrasion resistant additive comprising the steps of:
a) Hydrophilic pretreatment is carried out on the nonpolar thermoplastic material by using an amphoteric surfactant in a dispersion solvent to obtain a pretreated nonpolar thermoplastic material;
b) In a dispersion solvent, carrying out lipophilic pretreatment on the inorganic whiskers by using an amphoteric surfactant to obtain pretreated inorganic whiskers;
c) The method comprises the steps of mixing a pretreated nonpolar thermoplastic material, pretreated inorganic whiskers and a silane coupling agent according to a ratio of 10-25: 70-85: mixing uniformly in a weight ratio of 0-2 to obtain the composite material;
2) Mixing solid unsaturated polyester resin, filler, cross-linking agent, initiator, release agent, reinforcing material and the wear-resistant additive prepared in step 1), adding or not adding flame retardant and pigment, mixing uniformly, and granulating after plastic refining to obtain the product; wherein the dosage of the wear-resistant additive is 15-30wt% of the sum of the dosage of the solid unsaturated polyester resin and the wear-resistant additive.
In step 1) of the preparation method, the preparation of the wear-resistant additive preferably further comprises a step d), specifically, the powder obtained by uniformly mixing the pretreated nonpolar thermoplastic material, the pretreated inorganic whiskers and the silane coupling agent is granulated, and the obtained granules are further subjected to granularity refinement to obtain the wear-resistant additive.
In step 1) of the above preparation method, the selection and the amount of the nonpolar thermoplastic material, the inorganic whiskers, the amphoteric surfactant and the dispersion solvent, the specific pretreatment operation and the like are the same as those described above, and are not described in detail herein.
In the step 2) of the preparation method, the weight proportions of the solid unsaturated polyester resin, the wear-resistant additive, the filler, the cross-linking agent, the initiator, the release agent, the reinforcing material, the flame retardant and the pigment are as follows: 25-35 parts of solid unsaturated polyester resin, 5-15 parts of wear-resistant additive, 30-45 parts of filler, 3-5 parts of cross-linking agent, 0.5-1.5 parts of initiator, 1-2 parts of release agent, 15-25 parts of reinforcing material, 0-5 parts of flame retardant and 0-5 parts of pigment.
In the step 2) of the preparation method, the evenly mixed materials are usually put into a double-screw extruder for plastic refining, the temperature of each section interval of the double-screw extruder is usually controlled to be 70-100 ℃, the extruded materials are sent into a single-screw granulator for granulation, and the temperature of each section interval of the single-screw granulator is usually controlled to be 80-110 ℃.
In step 2) of the above preparation method, the specific selection and preferable proportions of the solid unsaturated polyester resin, filler, crosslinking agent, initiator, mold release agent, reinforcing material, flame retardant and pigment are the same as those described above, and detailed description thereof will be omitted.
Compared with the prior art, the invention is characterized in that:
1. according to the invention, the nonpolar thermoplastic material and the inorganic whisker are respectively modified by adopting the amphoteric surfactant, and the modified material is compounded to be used as the wear-resistant additive, so that compared with the prior art that the wear resistance is improved by adding polytetrafluoroethylene, molybdenum disulfide or graphite and other lubricating materials, the wear-resistant additive has lower raw material cost, and the insulating property and the heat resistance of the obtained unsaturated polyester molding compound are not influenced (the insulating property of the obtained unsaturated polyester molding compound is reduced by adding excessive graphite).
2. The nonpolar thermoplastic material and the inorganic whisker are respectively modified by using the amphoteric surfactant, so that the surface tension of the nonpolar thermoplastic material and the inorganic whisker is reduced, the interfacial binding force of the nonpolar thermoplastic material and the inorganic whisker is enhanced, the synergistic effect of the nonpolar thermoplastic material and the inorganic whisker can be fully exerted, and the wear resistance of the unsaturated polyester molding compound obtained by the contact is obviously improved.
3. The mechanical properties of the obtained unsaturated polyester molding compound are not significantly reduced because no inorganic filler (such as alumina, silica, etc.) with high hardness is added.
4. The unsaturated polyester molding compound is particularly suitable for preparing the alternating current contactor contact support, and the nonpolar thermoplastic material and the inorganic whisker are not easy to separate from the base resin material, so that the use amount of an organic lubricant is reduced, and the wear resistance stability of the contact support is improved.
Detailed Description
In order to better explain the technical scheme of the present invention, the present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
The parts referred to in the examples below are parts by weight.
Example 1: preparation of wear-resistant additive
a) Ethyl acetate is used as a dispersing solvent, dodecyl ethoxy sulfobetaine and glyceryl monostearate are used according to the weight ratio of 1:1 as an ampholytic surfactant, and selecting high-density polyethylene (with the particle diameter of 50-80 mu m) as a nonpolar thermoplastic material according to the weight ratio of 1:20 weight ratio of the amphoteric surfactant and the nonpolar thermoplastic material are weighed and placed in a high-speed mixer, then a dispersion solvent which is 10 times of the weight of the amphoteric surfactant is added, the mixture is mixed for 3 to 6 minutes at the temperature of 40 to 45 ℃, the obtained materials are placed in a vacuum drying oven for drying (the temperature is 60 to 70 ℃ and the time is 9 hours), and the materials are naturally cooled to room temperature after being dried, so as to obtain the pretreated nonpolar thermoplastic material;
b) Ethyl acetate is used as a dispersing solvent, dodecyl ethoxy sulfobetaine and glyceryl monostearate are used according to the weight ratio of 1:1 as an amphoteric surfactant, and the weight ratio of the calcium sulfate whisker to the calcium carbonate whisker (the diameters of the various whiskers are 1-5 mu m, and the lengths of the various whiskers are 50-100 mu m) is as follows: 1 as inorganic whisker according to the weight ratio of 1:20 weight ratio of the amphoteric surfactant and the inorganic whisker, placing the amphoteric surfactant and the inorganic whisker in a high-speed mixer, adding a dispersion solvent which is 10 times of the weight of the amphoteric surfactant, mixing for 3-6 min at 40-45 ℃, placing the obtained materials in a vacuum drying oven for drying (the temperature is 60-70 ℃ for 9 h), and naturally cooling to room temperature after drying to obtain the pretreated inorganic whisker;
c) The pretreated nonpolar thermoplastic material, pretreated inorganic whiskers and silane coupling agent (gamma-methacryloxypropyl trimethoxysilane) were mixed in a ratio of 20:79:1, uniformly mixing the materials in a weight ratio to obtain powder;
d) And c) placing the powder obtained in the step c) into a granulator, carrying out wet granulation by taking ethanol as a wetting agent, crushing the obtained particles in a crusher, then placing the crushed particles in a ball mill for ball milling, and sieving the ball-milled materials with a 100-mesh sieve to obtain the wear-resistant additive (the granularity is about 150 mu m).
Example 2: preparation of wear-resistant additive
a) N-butyl acetate is used as a dispersion solvent, dodecylaminopropionic acid is used as an ampholytic surfactant, and polyether-ether-ketone (with the particle size of 80-100 mu m) is used as a nonpolar thermoplastic material according to the following weight ratio of 1:25 weight ratio of the amphoteric surfactant and the nonpolar thermoplastic material are weighed and placed in a high-speed mixer, then a dispersing solvent which is 20 times of the weight of the amphoteric surfactant is added, the mixture is mixed for 6 minutes at the temperature of 40 to 45 ℃, the obtained materials are placed in a vacuum drying oven for drying (the temperature is 70 to 80 ℃ and the time is 8 hours), and the materials are naturally cooled to room temperature after being dried, so as to obtain the pretreated nonpolar thermoplastic material;
b) N-butyl acetate is used as a dispersion solvent, dodecyl hydroxypropyl sulfobetaine is used as an amphoteric surfactant, and potassium titanate whisker, aluminum borate whisker and calcium carbonate whisker (the diameters of the various whiskers are 1-5 mu m, and the lengths of the various whiskers are 50-100 mu m) are used according to the following ratio of 1:2:1 as inorganic whisker according to the weight ratio of 1:25 weight ratio of the amphoteric surfactant and the inorganic whisker, placing the amphoteric surfactant and the inorganic whisker in a high-speed mixer, adding a dispersion solvent which is 20 times of the weight of the amphoteric surfactant, mixing for 6min at 35-40 ℃, placing the obtained materials in a vacuum drying oven for drying (the temperature is 60-70 ℃ and the time is 9 h), and naturally cooling to room temperature after drying to obtain the pretreated inorganic whisker;
c) The pretreated nonpolar thermoplastic material, pretreated inorganic whiskers and silane coupling agent (vinyltriethoxysilane) were combined in a ratio of 10:85:2, uniformly mixing the materials in a weight ratio to obtain powder;
d) And c) placing the powder obtained in the step c) into a granulator, carrying out wet granulation by taking ethanol as a wetting agent, crushing the obtained particles in a crusher, then placing the crushed particles in a ball mill for ball milling, and sieving the ball-milled materials with a 100-mesh sieve to obtain the wear-resistant additive (the granularity is about 150 mu m).
Example 3: preparation of wear-resistant additive
a) Methyl acetate is used as a dispersion solvent, glycerol monostearate is used as an ampholytic surfactant, ultra-high molecular weight polyethylene (the molecular weight is 150-170 ten thousand, the particle size is 80-100 mu m) is used as a nonpolar thermoplastic material, and the preparation method comprises the following steps of: 30 weight ratio of the amphoteric surfactant and the nonpolar thermoplastic material are weighed and placed in a high-speed mixer, then a dispersing solvent which is 15 times of the weight of the amphoteric surfactant is added, the mixture is mixed for 5 minutes at the temperature of 40 to 45 ℃, the obtained materials are placed in a vacuum drying oven for drying (the temperature is 70 to 80 ℃ and the time is 8 hours), and the materials are naturally cooled to room temperature after being dried, so as to obtain the pretreated nonpolar thermoplastic material;
b) Methyl acetate is used as a dispersion solvent, glycerol monostearate is used as an amphoteric surfactant, magnesium borate whiskers (with the diameter of 1-5 mu m and the length of 50-100 mu m) are used as inorganic whiskers, and the weight ratio is 1:30 weight ratio of the amphoteric surfactant and the inorganic whisker, placing the amphoteric surfactant and the inorganic whisker in a high-speed mixer, adding a dispersion solvent which is 15 times of the weight of the amphoteric surfactant, mixing for 5min at 40-45 ℃, placing the obtained materials in a vacuum drying oven for drying (the temperature is 70-80 ℃ and the time is 8 h), and naturally cooling to room temperature after drying to obtain the pretreated inorganic whisker;
c) The pretreated nonpolar thermoplastic material and the pretreated inorganic whiskers were mixed according to a ratio of 25:70 weight ratio, and the obtained powder is the wear-resistant additive (the granularity is about 50 mu m).
Example 4: the invention relates to a wear-resistant unsaturated polyester molding compound
1. Formulation of
25 parts of solid unsaturated polyester resin, wherein the weight ratio of the o-benzene type unsaturated polyester resin to the m-benzene type unsaturated polyester resin is 1:1 weight ratio;
8 parts of wear-resistant additive, prepared as described in example 1;
3 parts of cross-linking agent, which is prepared from triallyl cyanurate and diallyl phthalate according to the weight ratio of 1:2 weight ratio;
0.5 part of initiator, namely dicumyl peroxide;
1 part of a mold release agent, zinc stearate is selected;
45 parts of filler, namely zinc borate and aluminum hydroxide according to the weight ratio of 1:3 weight ratio;
15 parts of reinforcing material, namely alkali-free glass fiber with the diameter of 11-15 mu m and the length of 3-6 mm is selected;
2.5 parts of pigment, and phthalocyanine blue is selected.
2. Preparation method
Weighing the components according to the formula, putting the components into a dry powder high-speed mixer, mixing uniformly, refining plastics by a double-screw extruder, controlling the temperature of each section interval of the double-screw extruder to be 70-100 ℃, delivering the extruded materials into a single-screw granulator for granulation, controlling the temperature of each section interval of the single-screw granulator to be 80-110 ℃, preparing regular or irregular granular plastics, and cooling, magnetic separation, batch mixing, sieving, weighing and packaging to obtain the wear-resistant unsaturated polyester molding compound.
Comparative example 4: wear-resistant unsaturated polyester molding compound
1. Formulation of
25 parts of solid unsaturated polyester resin, wherein the weight ratio of the o-benzene type unsaturated polyester resin to the m-benzene type unsaturated polyester resin is 1:1 weight ratio;
8 parts of inorganic filler, namely alumina;
3 parts of cross-linking agent, which is prepared from triallyl cyanurate and diallyl phthalate according to the weight ratio of 1:2 weight ratio;
0.5 part of initiator, namely dicumyl peroxide;
1 part of a mold release agent, zinc stearate is selected;
45 parts of filler, namely zinc borate and aluminum hydroxide according to the weight ratio of 1:3 weight ratio;
15 parts of reinforcing material, namely alkali-free glass fiber with the diameter of 11-15 mu m and the length of 3-6 mm is selected;
2.5 parts of pigment, and phthalocyanine blue is selected.
2. Preparation method
Same as in example 4.
Example 5: the invention relates to a wear-resistant unsaturated polyester molding compound
1. Formulation of
28 parts of solid unsaturated polyester resin, wherein the weight ratio of the o-benzene type unsaturated polyester resin to the m-benzene type unsaturated polyester resin is 1:1 weight ratio;
10 parts of wear-resistant additive, prepared as described in example 1;
3.5 parts of cross-linking agent, diallyl phthalate;
initiator 0.8 part, which is prepared from dicumyl peroxide and dibenzoyl peroxide according to the weight ratio of 1:1 weight ratio;
1.2 parts of a mold release agent, wherein calcium stearate is selected;
40 parts of filler, namely aluminum hydroxide;
15 parts of reinforcing material, and alkali-free glass fiber with the diameter of 11-15 mu m and the length of 3-6 mm is selected.
2. Preparation method
Same as in example 4.
Comparative example 5: wear-resistant unsaturated polyester molding compound
1. Formulation of
28 parts of solid unsaturated polyester resin, wherein the weight ratio of the o-benzene type unsaturated polyester resin to the m-benzene type unsaturated polyester resin is 1:1 weight ratio;
10 parts of graphite;
3.5 parts of cross-linking agent, diallyl phthalate;
initiator 0.8 part, which is prepared from dicumyl peroxide and dibenzoyl peroxide according to the weight ratio of 1:1 weight ratio;
1.2 parts of a mold release agent, wherein calcium stearate is selected;
40 parts of filler, namely aluminum hydroxide;
15 parts of reinforcing material, and alkali-free glass fiber with the diameter of 11-15 mu m and the length of 3-6 mm is selected.
2. Preparation method
Same as in example 4.
Example 6: the invention relates to a wear-resistant unsaturated polyester molding compound
1. Formulation of
28 parts of solid unsaturated polyester resin, wherein the weight ratio of the o-benzene type unsaturated polyester resin to the m-benzene type unsaturated polyester resin is 1:1 weight ratio;
9 parts of wear-resistant additive, prepared as described in example 1;
3.5 parts of cross-linking agent, diallyl phthalate;
0.8 part of initiator, namely dicumyl peroxide;
1.2 parts of a mold release agent, zinc stearate is selected;
37 parts of filler, consisting of magnesium oxide and aluminium hydroxide according to a weight ratio of 1:1 weight ratio;
18 parts of reinforcing material, namely alkali-free glass fiber with the diameter of 11-15 mu m and the length of 3-6 mm is selected;
1.5 parts of pigment, and iron oxide red is selected.
2. Preparation method
Same as in example 4.
Comparative example 6-1: wear-resistant unsaturated polyester molding compound
1. Formulation of
28 parts of solid unsaturated polyester resin, wherein the weight ratio of the o-benzene type unsaturated polyester resin to the m-benzene type unsaturated polyester resin is 1:1 weight ratio;
9 parts of polytetrafluoroethylene;
3.5 parts of cross-linking agent, diallyl phthalate;
0.8 part of initiator, namely dicumyl peroxide;
1.2 parts of a mold release agent, zinc stearate is selected;
37 parts of filler, consisting of magnesium oxide and aluminium hydroxide according to a weight ratio of 1:1 weight ratio;
18 parts of reinforcing material, namely alkali-free glass fiber with the diameter of 11-15 mu m and the length of 3-6 mm is selected;
1.5 parts of pigment, and iron oxide red is selected.
2. Preparation method
Same as in example 4.
Comparative example 6-2: wear-resistant unsaturated polyester molding compound
1. Formulation of
28 parts of solid unsaturated polyester resin, wherein the weight ratio of the o-benzene type unsaturated polyester resin to the m-benzene type unsaturated polyester resin is 1:1 weight ratio;
3.5 parts of cross-linking agent, diallyl phthalate;
0.8 part of initiator, namely dicumyl peroxide;
1.2 parts of a mold release agent, zinc stearate is selected;
37 parts of filler, consisting of magnesium oxide and aluminium hydroxide according to a weight ratio of 1:1 weight ratio;
18 parts of reinforcing material, namely alkali-free glass fiber with the diameter of 11-15 mu m and the length of 3-6 mm is selected;
1.5 parts of pigment, and iron oxide red is selected.
2. Preparation method
Same as in example 4.
Example 7: the invention relates to a wear-resistant unsaturated polyester molding compound
1. Formulation of
35 parts of solid unsaturated polyester resin, namely p-benzene unsaturated polyester resin;
5 parts of an abrasion-resistant additive, prepared as described in example 2;
5 parts of cross-linking agent, styrene is selected;
1 part of initiator, namely tert-butyl peroxy-2-ethylhexanoate;
2 parts of a mold release agent, sodium palmitate is selected;
35 parts of filler, namely silicon micropowder;
0.5 part of flame retardant, zinc borate is selected;
15 parts of reinforcing material, namely alkali-free glass fiber with the diameter of 11-15 mu m and the length of 3-6 mm is selected;
5 parts of pigment, namely permanent yellow.
2. Preparation method
Same as in example 4.
Example 8: the invention relates to a wear-resistant unsaturated polyester molding compound
1. Formulation of
25 parts of solid unsaturated polyester resin, namely p-benzene unsaturated polyester resin;
15 parts of an abrasion-resistant additive, prepared as described in example 3;
3 parts of cross-linking agent, namely diallyl isophthalate;
1.5 parts of initiator, namely dibenzoyl peroxide;
1 part of a mold release agent, namely pentaerythritol stearate;
42 parts of filler, and mica powder is selected;
3 parts of flame retardant, molybdenum trioxide is selected; 15 parts of reinforcing material, namely alkali-free glass fiber with the diameter of 11-15 mu m and the length of 3-6 mm is selected;
2 parts of pigment, and carbon black is selected.
2. Preparation method
Same as in example 4.
The abrasion loss, mechanical properties, heat resistance, electrical properties, flame retardant properties and the like of the unsaturated polyester molding compounds prepared in the above examples 4 to 8 and comparative examples 4, 5, 6-1 and 6-2 were measured according to the relevant national industry standards, respectively, and the obtained results are shown in the following Table 1:
table 1:
as can be seen from Table 1, the wear resistance of the unsaturated polyester molding compound prepared by the invention is obviously reduced, the wear resistance is improved, and the original mechanical property, electrical property, flame retardant property and heat resistance of the material are not affected basically. The impact strength of the material can be reduced by adding inorganic wear-resistant filler; the addition of organic lubricating materials (such as graphite, etc.) reduces the electrical strength of the material, while the addition of polytetrafluoroethylene reduces the heat distortion temperature of the material under load and the high price of polytetrafluoroethylene increases the cost of the material.
Claims (10)
1. The wear-resistant unsaturated polyester molding compound is prepared from solid unsaturated polyester resin, a wear-resistant additive, a filler, a cross-linking agent, an initiator, a release agent, a reinforcing material, a flame retardant and pigment, and is characterized in that the wear-resistant additive is prepared by a method comprising the following steps:
a) Hydrophilic pretreatment is carried out on the nonpolar thermoplastic material by using an amphoteric surfactant in a dispersion solvent to obtain a pretreated nonpolar thermoplastic material;
b) In a dispersion solvent, carrying out lipophilic pretreatment on the inorganic whiskers by using an amphoteric surfactant to obtain pretreated inorganic whiskers;
c) The method comprises the steps of mixing a pretreated nonpolar thermoplastic material, pretreated inorganic whiskers and a silane coupling agent according to a ratio of 10-25: 70-85: mixing uniformly in a weight ratio of 0-2 to obtain the composite material;
the dosage of the wear-resistant additive is 15-30wt% of the sum of the dosage of the solid unsaturated polyester resin and the wear-resistant additive.
2. The abrasion-resistant unsaturated polyester molding compound according to claim 1, wherein the method for preparing the abrasion-resistant additive further comprises a step d), in particular, granulating powder obtained by uniformly mixing the pretreated nonpolar thermoplastic material, the pretreated inorganic whiskers and the silane coupling agent, and further refining the obtained particles to obtain the abrasion-resistant additive.
3. The abrasion-resistant unsaturated polyester molding compound according to claim 1 or 2, wherein,
in step a) of preparing the wear additive, the weight ratio of the amphoteric surfactant to the non-polar thermoplastic material is 1: 20-40 parts;
in step b) of preparing the abrasion resistant additive, the weight ratio of the amphoteric surfactant to the inorganic whisker is 1: 20-40.
4. The abrasion-resistant unsaturated polyester molding compound according to claim 1 or 2, wherein in the method for producing the abrasion-resistant additive, the nonpolar thermoplastic material is any one or a combination of two or more selected from the group consisting of high density polyethylene, ultra-high molecular weight polyethylene and polyether ether ketone;
the inorganic whisker is one or the combination of more than two of ceramic whisker and inorganic salt whisker;
the dispersion solvent is one or more selected from methyl acetate, ethyl acetate and n-butyl acetate.
5. The abrasion-resistant unsaturated polyester molding compound according to claim 1 or 2, wherein in the method for producing the abrasion-resistant additive, the amount of the abrasion-resistant additive is 18 to 25% by weight of the sum of the amounts of the solid unsaturated polyester resin and the abrasion-resistant additive.
6. The abrasion-resistant unsaturated polyester molding compound according to claim 1 or 2, wherein the solid unsaturated polyester resin, the abrasion-resistant additive, the filler, the crosslinking agent, the initiator, the release agent, the reinforcing material, the flame retardant and the pigment are in weight proportions of:
25-35 parts of solid unsaturated polyester resin, 5-15 parts of wear-resistant additive, 30-45 parts of filler, 3-5 parts of cross-linking agent, 0.5-1.5 parts of initiator, 1-2 parts of release agent, 15-25 parts of reinforcing material, 0-5 parts of flame retardant and 0-5 parts of pigment.
7. The abrasion-resistant unsaturated polyester molding compound according to claim 1 or 2, wherein the solid unsaturated polyester resin, the abrasion-resistant additive, the filler, the crosslinking agent, the initiator, the release agent, the reinforcing material, the flame retardant and the pigment are in weight proportions of:
25-35 parts of solid unsaturated polyester resin, 8-12 parts of wear-resistant additive, 35-45 parts of filler, 3-5 parts of cross-linking agent, 0.5-1.5 parts of initiator, 1-2 parts of release agent, 15-25 parts of reinforcing material, 0.5-5 parts of flame retardant and 0.5-5 parts of pigment.
8. The process for preparing a wear-resistant unsaturated polyester molding compound according to claim 1, comprising the steps of:
1) Preparing an abrasion resistant additive comprising the steps of:
a) Hydrophilic pretreatment is carried out on the nonpolar thermoplastic material by using an amphoteric surfactant in a dispersion solvent to obtain a pretreated nonpolar thermoplastic material;
b) In a dispersion solvent, carrying out lipophilic pretreatment on the inorganic whiskers by using an amphoteric surfactant to obtain pretreated inorganic whiskers;
c) The method comprises the steps of mixing a pretreated nonpolar thermoplastic material, pretreated inorganic whiskers and a silane coupling agent according to a ratio of 10-25: 70-85: mixing uniformly in a weight ratio of 0-2 to obtain the composite material;
2) Mixing solid unsaturated polyester resin, filler, cross-linking agent, initiator, release agent, reinforcing material and the wear-resistant additive prepared in step 1), adding or not adding flame retardant and pigment, mixing uniformly, and granulating after plastic refining to obtain the product; wherein the dosage of the wear-resistant additive is 15-30wt% of the sum of the dosage of the solid unsaturated polyester resin and the wear-resistant additive.
9. The method according to claim 8, wherein the step 1) further comprises a step d) of granulating the powder obtained by uniformly mixing the pretreated nonpolar thermoplastic material, the pretreated inorganic whiskers and the silane coupling agent, and further refining the obtained granules to obtain the wear-resistant additive.
10. The preparation method according to claim 8 or 9, wherein in the step 2), the solid unsaturated polyester resin, the abrasion-resistant additive, the filler, the cross-linking agent, the initiator, the release agent, the reinforcing material, the flame retardant and the pigment are in weight proportions of:
25-35 parts of solid unsaturated polyester resin, 5-15 parts of wear-resistant additive, 30-45 parts of filler, 3-5 parts of cross-linking agent, 0.5-1.5 parts of initiator, 1-2 parts of release agent, 15-25 parts of reinforcing material, 0-5 parts of flame retardant and 0-5 parts of pigment.
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| CN202311664372.XA CN117659657A (en) | 2023-12-06 | 2023-12-06 | Wear-resistant unsaturated polyester molding compound and preparation method thereof |
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| CN202311664372.XA CN117659657A (en) | 2023-12-06 | 2023-12-06 | Wear-resistant unsaturated polyester molding compound and preparation method thereof |
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