CN117801214A - High-strength wear-resistant thermoplastic polyurethane elastomer and preparation method and application thereof - Google Patents
High-strength wear-resistant thermoplastic polyurethane elastomer and preparation method and application thereof Download PDFInfo
- Publication number
- CN117801214A CN117801214A CN202311715110.1A CN202311715110A CN117801214A CN 117801214 A CN117801214 A CN 117801214A CN 202311715110 A CN202311715110 A CN 202311715110A CN 117801214 A CN117801214 A CN 117801214A
- Authority
- CN
- China
- Prior art keywords
- diisocyanate
- thermoplastic polyurethane
- polyurethane elastomer
- glycol
- polyol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004433 Thermoplastic polyurethane Substances 0.000 title claims abstract description 33
- 229920002803 thermoplastic polyurethane Polymers 0.000 title claims abstract description 33
- 229920001971 elastomer Polymers 0.000 title claims abstract description 31
- 239000000806 elastomer Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 25
- 125000005442 diisocyanate group Chemical group 0.000 claims abstract description 14
- 239000004970 Chain extender Substances 0.000 claims abstract description 11
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 10
- 229920000642 polymer Polymers 0.000 claims abstract description 7
- 238000012986 modification Methods 0.000 claims abstract description 6
- 230000004048 modification Effects 0.000 claims abstract description 6
- 125000003158 alcohol group Chemical group 0.000 claims abstract description 5
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 33
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 25
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 24
- -1 polybutylene adipate Polymers 0.000 claims description 24
- 229920005862 polyol Polymers 0.000 claims description 22
- 150000003077 polyols Chemical class 0.000 claims description 22
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 16
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 16
- 239000013638 trimer Substances 0.000 claims description 14
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 13
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 claims description 12
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000003999 initiator Substances 0.000 claims description 8
- 239000005056 polyisocyanate Substances 0.000 claims description 8
- 229920001228 polyisocyanate Polymers 0.000 claims description 8
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 7
- 229920005906 polyester polyol Polymers 0.000 claims description 7
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 229920001610 polycaprolactone Polymers 0.000 claims description 6
- 229920000570 polyether Polymers 0.000 claims description 6
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 6
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000004632 polycaprolactone Substances 0.000 claims description 5
- 239000004417 polycarbonate Substances 0.000 claims description 5
- 229920000515 polycarbonate Polymers 0.000 claims description 5
- 229940043375 1,5-pentanediol Drugs 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 4
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 claims description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 4
- 229960004063 propylene glycol Drugs 0.000 claims description 4
- 238000007151 ring opening polymerisation reaction Methods 0.000 claims description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 4
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims description 4
- FKTHNVSLHLHISI-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC=C1CN=C=O FKTHNVSLHLHISI-UHFFFAOYSA-N 0.000 claims description 3
- ALQLPWJFHRMHIU-UHFFFAOYSA-N 1,4-diisocyanatobenzene Chemical compound O=C=NC1=CC=C(N=C=O)C=C1 ALQLPWJFHRMHIU-UHFFFAOYSA-N 0.000 claims description 3
- SBJCUZQNHOLYMD-UHFFFAOYSA-N 1,5-Naphthalene diisocyanate Chemical compound C1=CC=C2C(N=C=O)=CC=CC2=C1N=C=O SBJCUZQNHOLYMD-UHFFFAOYSA-N 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 125000000319 biphenyl-4-yl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1C1=C([H])C([H])=C([*])C([H])=C1[H] 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 229920000909 polytetrahydrofuran Polymers 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 claims description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims description 2
- 229940035437 1,3-propanediol Drugs 0.000 claims description 2
- YHFGMFYKZBWPRW-UHFFFAOYSA-N 3-methylpentane-1,1-diol Chemical compound CCC(C)CC(O)O YHFGMFYKZBWPRW-UHFFFAOYSA-N 0.000 claims description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- QORUGOXNWQUALA-UHFFFAOYSA-N N=C=O.N=C=O.N=C=O.C1=CC=C(C(C2=CC=CC=C2)C2=CC=CC=C2)C=C1 Chemical compound N=C=O.N=C=O.N=C=O.C1=CC=C(C(C2=CC=CC=C2)C2=CC=CC=C2)C=C1 QORUGOXNWQUALA-UHFFFAOYSA-N 0.000 claims description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 2
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 claims description 2
- BWVAOONFBYYRHY-UHFFFAOYSA-N [4-(hydroxymethyl)phenyl]methanol Chemical compound OCC1=CC=C(CO)C=C1 BWVAOONFBYYRHY-UHFFFAOYSA-N 0.000 claims description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 2
- 239000001361 adipic acid Substances 0.000 claims description 2
- 235000011037 adipic acid Nutrition 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 230000003078 antioxidant effect Effects 0.000 claims description 2
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 2
- PTIXVVCRANICNC-UHFFFAOYSA-N butane-1,1-diol;hexanedioic acid Chemical compound CCCC(O)O.OC(=O)CCCCC(O)=O PTIXVVCRANICNC-UHFFFAOYSA-N 0.000 claims description 2
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 2
- PMMYEEVYMWASQN-IMJSIDKUSA-N cis-4-Hydroxy-L-proline Chemical compound O[C@@H]1CN[C@H](C(O)=O)C1 PMMYEEVYMWASQN-IMJSIDKUSA-N 0.000 claims description 2
- TWLCPLJMACDPFF-UHFFFAOYSA-N cyclohexane;1,2-diisocyanatoethane Chemical compound C1CCCCC1.O=C=NCCN=C=O TWLCPLJMACDPFF-UHFFFAOYSA-N 0.000 claims description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 2
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 2
- 150000002009 diols Chemical group 0.000 claims description 2
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 claims description 2
- VUPKGFBOKBGHFZ-UHFFFAOYSA-N dipropyl carbonate Chemical compound CCCOC(=O)OCCC VUPKGFBOKBGHFZ-UHFFFAOYSA-N 0.000 claims description 2
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- SAMYCKUDTNLASP-UHFFFAOYSA-N hexane-2,2-diol Chemical compound CCCCC(C)(O)O SAMYCKUDTNLASP-UHFFFAOYSA-N 0.000 claims description 2
- 239000004611 light stabiliser Substances 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims description 2
- 229920000166 polytrimethylene carbonate Polymers 0.000 claims description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 2
- 235000013772 propylene glycol Nutrition 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 2
- JMXKSZRRTHPKDL-UHFFFAOYSA-N titanium ethoxide Chemical compound [Ti+4].CC[O-].CC[O-].CC[O-].CC[O-] JMXKSZRRTHPKDL-UHFFFAOYSA-N 0.000 claims description 2
- 238000005809 transesterification reaction Methods 0.000 claims description 2
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 2
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 3
- 150000003384 small molecules Chemical class 0.000 claims 3
- 150000002148 esters Chemical class 0.000 claims 2
- TXTIIWDWHSZBRK-UHFFFAOYSA-N 2,4-diisocyanato-1-methylbenzene;2-ethyl-2-(hydroxymethyl)propane-1,3-diol Chemical compound CCC(CO)(CO)CO.CC1=CC=C(N=C=O)C=C1N=C=O TXTIIWDWHSZBRK-UHFFFAOYSA-N 0.000 claims 1
- 239000004971 Cross linker Substances 0.000 claims 1
- 125000003827 glycol group Chemical group 0.000 claims 1
- 238000004132 cross linking Methods 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 5
- 238000005191 phase separation Methods 0.000 abstract description 3
- 150000005846 sugar alcohols Polymers 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000005441 aurora Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- AVXURJPOCDRRFD-UHFFFAOYSA-N hydroxylamine group Chemical group NO AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- FRCFWPVMFJMNDP-UHFFFAOYSA-N n-propan-2-ylaniline Chemical group CC(C)NC1=CC=CC=C1 FRCFWPVMFJMNDP-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920003225 polyurethane elastomer Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- BJZYYSAMLOBSDY-QMMMGPOBSA-N (2s)-2-butoxybutan-1-ol Chemical compound CCCCO[C@@H](CC)CO BJZYYSAMLOBSDY-QMMMGPOBSA-N 0.000 description 1
- YXRKNIZYMIXSAD-UHFFFAOYSA-N 1,6-diisocyanatohexane Chemical compound O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O YXRKNIZYMIXSAD-UHFFFAOYSA-N 0.000 description 1
- AXKZIDYFAMKWSA-UHFFFAOYSA-N 1,6-dioxacyclododecane-7,12-dione Chemical compound O=C1CCCCC(=O)OCCCCO1 AXKZIDYFAMKWSA-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- OWBTYPJTUOEWEK-UHFFFAOYSA-N butane-2,3-diol Chemical compound CC(O)C(C)O OWBTYPJTUOEWEK-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 125000003636 chemical group Chemical group 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000921 polyethylene adipate Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6648—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6655—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/04—Plastics, rubber or vulcanised fibre
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3271—Hydroxyamines
- C08G18/329—Hydroxyamines containing aromatic groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
- C08G18/4277—Caprolactone and/or substituted caprolactone
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
The invention discloses a high-strength wear-resistant thermoplastic polyurethane elastomer material and a preparation method thereof. The preparation method comprises the following steps: a) 45-85% of polyalcohol; b) 10-45% of diisocyanate and its polymer (n > 2); c) 1-20% of a small molecular dihydric alcohol chain extender; d) 0.05 to 0.5 percent of hydroxyl/amine isopropylaniline chain extension crosslinking agent. The hydroxyl/amine isopropylaniline chain extension cross-linking agent with a specific self-catalytic function is introduced to form a hard segment micro-cross-linking structure with controllable degree with diisocyanate polymer, so that the phase separation, wear resistance and heat resistance of the material are greatly improved on the premise of ensuring a soft segment linear structure and not influencing polymerization reaction, and the hydroxyl/amine isopropylaniline chain extension cross-linking agent can be used in the fields of sole materials, blending modification, industrial products and the like.
Description
Technical Field
The invention relates to the technical field of polyurethane elastomer preparation, in particular to a high-strength wear-resistant thermoplastic polyurethane elastomer, and a preparation method and application thereof.
Background
Thermoplastic polyurethane elastomers (TPU) are a class of linear polyurethane materials that can be melted by heat, dissolved in solvents, chemically non-crosslinked or poorly crosslinked, and have glass transition temperatures between rubber and plastic. The high-hardness high-wear-resistance alloy has the advantages of wide hardness range, easiness in processing, high wear resistance and the like, and is widely applied to various fields. In recent years, with the continuous progress of human science and technology, the performance requirements on TPU materials are higher and higher, and the traditional TPU materials have good mechanical strength and wear resistance, but still cannot meet the strength and wear resistance requirements of special fields such as basketball soles, blending modification, engineering components and the like, so that the material performance needs to be further upgraded.
The patent CN 102786652A adds the composite additive of the methyl silicone oil and the molybdenum disulfide into the preparation of the thermoplastic polyurethane elastomer, so that a certain antifriction effect is achieved, but the strength is reduced;
the patent CN 111269552A adds silicone resin, polytetrafluoroethylene micropowder, polyethylene wax powder or siloxane resin as an abrasion-resistant additive into the thermoplastic elastomer material, so that the abrasion-resistant effect of the composition is improved, but the transparency is reduced, and the strength is not improved;
the prepared modified thermoplastic elastomer with the nitrile rubber vulcanized rubber particles dispersed in the polyurethane elastomer has the advantages that the surface friction coefficient and the loss factor of the material are improved, the wear resistance is improved, but the processability is affected, and the transparency is affected;
the patent CN 110283298B adopts the polyol with the active end capped of organic silicon and introduces the glycol benzoate structure, so that a micro-crosslinking structure is formed to a certain extent, the wear resistance of the material is improved, but the phase separation degree is weakened, and the strength is reduced;
although the wear resistance of the material is improved to a certain extent, the thermoplastic polyurethane prepared by the method has the defects of poor transparency, poor processability, reduced strength and the like, and is limited to be widely applied.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-strength wear-resistant thermoplastic polyurethane elastomer material and a preparation method thereof, and simultaneously ensures the transparency and the processing performance of the material.
The technical scheme adopted by the invention for solving the problems is as follows:
the high-transparency wear-resistant thermoplastic polyurethane elastomer material comprises the following components in percentage by weight, based on 100% of the total mass of the components A-E:
a) 45-85% of polyalcohol; preferably 60-80%;
b) 10-45% of diisocyanate; preferably 15-35%;
c) Diisocyanate polymers (n > 2) 0.1-2.5%; preferably 0.5-2%;
d) 1-20% of dihydric alcohol chain extender; preferably 3-15%;
e) 0.1 to 1.5 percent of hydroxyl/amine isopropylaniline chain extension crosslinking agent; preferably 0.3-1%.
In the present invention, the number average molecular weight of the polyol of component A) is 800 to 4000g/mol, preferably 1000 to 3000g/mol.
In the present invention, the component A) polyol may be a polyester polyol, a polyether polyol, a polycaprolactone polyol, a polycarbonate polyol, or a combination thereof.
Preferably, the polyester polyol is prepared from dibasic acid and dihydric alcohol by a polyester polyol synthesis process which is well known in the industry; wherein the dibasic acid is one or more of succinic acid, adipic acid and sebacic acid, and the dihydric alcohol is one or more of ethylene glycol, diethylene glycol, 1, 2-propylene glycol, 1, 3-propylene glycol, 1, 4-butanediol, 1, 6-hexanediol, diethylene glycol, dipropylene glycol and neopentyl glycol; preferably, the polyester polyol is one or more of polybutylene adipate, polyhexamethylene adipate and polyethylene glycol butylene adipate.
Preferably, the polyether polyol is prepared by ring-opening polymerization of an epoxy compound in the presence of an active hydrogen-containing compound as an initiator and a catalyst; wherein the epoxy compound is one or more of propylene oxide, tetrahydrofuran and ethylene oxide, and preferably the polyether polyol is polytetramethylene ether glycol.
Preferably, the polycaprolactone polyol is prepared by ring-opening polymerization of monomer epsilon-caprolactone and an initiator, wherein the initiator is one or more of 1, 4-butanediol, neopentyl glycol, 1, 6-hexanediol, diethylene glycol and ethylene glycol; preferably, the initiator is neopentyl glycol.
Preferably, the polycarbonate polyol is prepared by transesterification of a small molecule diol and a small molecule carbonate; wherein the small molecular dihydric alcohol is one or more of 1, 6-hexanediol, 1, 4-butanediol, 1, 4-cyclohexanedimethanol, 1, 5-pentanediol and 3-methylpentanediol, and preferably the small molecular dihydric alcohol is 1, 6-hexanediol; the small molecule carbonate is one or more of dimethyl carbonate, diethyl carbonate, dipropyl carbonate, diphenyl carbonate, ethylene carbonate or propylene carbonate, preferably the small molecule carbonate is ethylene carbonate.
In the invention, the polyisocyanate of the component B) is one or more of toluene diisocyanate, diphenylmethane diisocyanate, 1, 5-naphthalene diisocyanate, p-phenylene diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, xylylene diisocyanate, 3-dimethyl-4, 4-biphenyl diisocyanate, cyclohexane dimethylene diisocyanate, 4-dicyclohexylmethane diisocyanate and 3, 3-dimethyl-4, 4-diphenylmethane diisocyanate; preferably one or more of toluene diisocyanate, diphenylmethane diisocyanate, 1, 5-naphthalene diisocyanate, p-phenylene diisocyanate, xylylene diisocyanate, 3-dimethyl-4, 4-biphenyl diisocyanate, 3-dimethyl-4, 4-diphenylmethane diisocyanate.
In the invention, the component C) diisocyanate polymer (n > 2) is one or more of toluene diisocyanate trimer, polymethylene polyphenyl polyisocyanate, hexamethylene diisocyanate trimer, hexamethylene diisocyanate biuret, isophorone diisocyanate trimer, toluene diisocyanate and trimethylolpropane adduct and triphenylmethane triisocyanate; preferably one or more of toluene diisocyanate trimer, polymethylene polyphenyl polyisocyanate, hexamethylene diisocyanate trimer, hexamethylene diisocyanate biuret;
in the invention, the component D) dihydric alcohol chain extender is selected from one or more of ethylene glycol, 1, 3-propylene glycol, 1, 4-butanediol, 1, 5-pentanediol, 1, 6-hexanediol, diethylene glycol, 1, 2-propanediol, methyl propylene glycol, methyl pentanediol, 1, 4-cyclohexanediol, neopentyl glycol and terephthalyl alcohol; preferably one or more of ethylene glycol, 1, 3-propylene glycol, 1, 4-butanediol, and 1, 6-hexanediol.
In the invention, the structural general formula of the hydroxyl/amine isopropylaniline chain extension crosslinking agent of the component E) is as follows:
wherein R is selected from H, CH 3 And CH (CH) 2 CH 3 Any one of the following
Wherein R is 1 And R is 2 Selected from OH and NH respectively 2 Any one of them.
In the invention, one or more of methyl titanate, ethyl titanate, propyl titanate, butyl titanate, stannous octoate, dibutyl tin dilaurate and triethylene diamine can be added into the thermoplastic polyurethane elastomer material to be used as a catalyst for polymerization reaction.
In the invention, processing auxiliary aids such as an antioxidant, a light stabilizer, an ultraviolet absorber, a lubricant and the like can be added into the thermoplastic polyurethane elastomer material.
The thermoplastic polyurethane elastomer material comprises the following preparation steps:
uniformly mixing an optional auxiliary agent, a catalyst polyol, polyisocyanate and a micromolecular dihydric alcohol chain extender in a stirrer, feeding the uniformly mixed materials into a reactive double-screw extruder, adding a hydroxyl/amine isopropylaniline chain extender into a reaction rear end 7-9 zone, preferably a 7 th zone, and obtaining particles of the thermoplastic polyurethane elastomer after reaction extrusion, underwater pelleting and hopper drying. Preferably, the temperature of the twin-screw extruder is between 120 and 250 ℃, the screw rotating speed is 800 to 1200RPM, the granulating water temperature is 30 to 60 ℃, the drying temperature is 40 to 80 ℃, and the drying time is 30min to 2h.
The thermoplastic polyurethane elastomer material can be used in the fields of sole materials, blending modification, industrial articles and the like.
The invention has the beneficial effects that:
the hydroxyl/amine isopropylaniline chain extension crosslinking agent with a specific self-catalysis function at the rear end of the preferential reaction is introduced, so that the low-activity NCO functional group of the diisocyanate polymer can be activated on the premise of ensuring the normal polymerization reaction, a micro-crosslinking system with controllable degree is formed, and a large number of hydrogen bond physical crosslinking points are increased, so that the wear resistance is greatly improved. Because the micro-crosslinking only occurs in the hard segment, the phase separation between the soft segment and the hard segment is promoted, and the mechanical strength of the material is also obviously improved. Can be used in the fields of sole materials, blending modification, industrial products and the like.
Detailed Description
The principles and features of the present invention are described below in connection with examples, which are set forth only to illustrate the present invention and not to limit the scope of the invention.
The raw materials used in the implementation of the invention are all conventional products on the market.
The materials used are as follows:
a) Polyol:
PBA (polybutylene adipate) with a molecular weight of 2000g/mol, wanhua chemical group Co., ltd;
PEA (polyethylene adipate glycol) with a molecular weight of 1500g/mol, wanhua chemical group Co., ltd;
PEBA (polyethylene glycol butanediol adipate), molecular weight 3000g/mol, van chemical group Co., ltd
PTMG (polytetrahydrofuran ether) with molecular weight of 1000g/mol, basv chemical Co., ltd;
NPG-PCL (neopentyl glycol initiated polycaprolactone) with molecular weight of 2000, daxiaoqing (China) investment Co., ltd;
PCDL (polycarbonate diol) having a molecular weight of 2500g/mol, wanhua chemical group Co., ltd;
b) A diisocyanate:
MDI (diphenylmethane diisocyanate), HDI (hexamethylene diisocyanate), TDI (toluene diisocyanate) all from the company of the chemical groups of vandergars;
c) Diisocyanate multimers (n > 2):
PAPI (polymethylene polyphenyl polyisocyanates) from Wanhua chemical groups Co., ltd; TDI trimer (toluene diisocyanate trimer), HDI trimer (hexamethylene diisocyanate trimer), and HDI biuret (hexamethylene diisocyanate biuret) were all purchased from Bayer, germany.
D) Small molecule diol chain extender:
EG (ethylene glycol), PDO (1, 3-propanediol), BDO (1, 4-butanediol), HDO (1, 6-hexanediol), all available from Allatin;
e) Hydroxyl/amine isopropylaniline chain-extending cross-linking agent:
the information of the hydroxyl/amine isopropylaniline chain-extending cross-linking agents E-1 to E-5 is as follows:
e-1: r is H, R 1 And R is 2 Are all OH, and the molecular formula is C 12 H 19 NO 2 Available from Aaron Chemicals, the structure is as follows:
e-2: r is H, R 1 Is NH 2 ，R 2 OH, molecular formula C 12 H 20 N 2 O, available from FCH Group, has the following structure:
e-3: r is CH 3 ，R 1 And R is 2 Are all OH, and the molecular formula is C 13 H 21 NO 2 Available from Aaron Chemicals, the structure is as follows:
e-4: r is CH 3 ，R 1 Is NH 2 ，R 2 OH, molecular formula C 13 H 22 N 2 O, available from Aurora, has the following structure:
e-5: r is CH 2 CH 3 ，R 1 And R is 2 Are all OH, and the molecular formula is C 14 H 23 NO 2 Purchased from Aurora corporation, the structure of which is as follows:
examples 1 to 8
Example 1
The thermoplastic polyurethane elastomer comprises the following components in parts by weight: 60 parts of polybutylene adipate, 6 parts of 1, 4-butanediol, 32 parts of diphenylmethane diisocyanate, 1.3 parts of polymethylene polyphenyl polyisocyanate and 0.7 part of E-1 chain extension crosslinking agent. The components are evenly mixed in a stirrer, then the evenly mixed materials are fed into a reactive double-screw extruder, then 0.7 part of hydroxyl/amine isopropylamine chain extender E1 is added in the 7 th zone of a reaction zone, and the granules of the thermoplastic polyurethane elastomer are obtained after reaction extrusion, underwater granulating and hopper drying. The temperature of the double-screw extruder is 120-250 ℃, the screw rotating speed is 800RPM, the granulating water temperature is 45 ℃, the drying temperature is 60 ℃, and the drying time is 2 hours.
Examples 2 to 10
The formulations of examples 2-10 are shown in Table 1 and were prepared in the same manner as in example 1.
Comparative examples 1 to 3
The formulations of comparative examples 1-3 are shown in Table 1 and were prepared in the same manner as in example 1.
TABLE 1 composition of thermoplastic polyurethane elastomer
The thermoplastic polyurethane elastomers obtained in examples 1 to 10 and comparative examples 1 to 3 were subjected to performance tests, and abrasion resistance was tested according to the ISO 4649 standard; tensile strength and tear strength were measured according to ASTM D412 and ASTM D624, respectively, and the test results are shown in Table 2.
Table 2 performance test
As can be seen from the performance test data in Table 2, the products of examples 1 to 10 of the present invention are greatly improved in abrasion resistance and mechanical strength as compared with comparative examples 1 to 3.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The wear-resistant thermoplastic polyurethane elastomer with high strength is characterized by comprising the following raw materials in percentage by weight, based on 100% of the total mass of components A-E:
2. thermoplastic polyurethane elastomer according to claim 1, characterized in that the number average molecular weight of the polyol of component a) is 800 to 4000g/mol, preferably 1000 to 3000g/mol.
3. The thermoplastic polyurethane elastomer according to claim 1 or 2, characterized in that the component a) polyol is selected from at least one of polyester polyols, polyether polyols, polycaprolactone polyols, polycarbonate polyols;
preferably, the polyester polyol is prepared from dibasic acid and dihydric alcohol; wherein the dibasic acid is one or more of succinic acid, adipic acid and sebacic acid, and the dihydric alcohol is one or more of ethylene glycol, diethylene glycol, 1, 2-propylene glycol, 1, 3-propylene glycol, 1, 4-butanediol, 1, 6-hexanediol, diethylene glycol, dipropylene glycol and neopentyl glycol; preferably, the polyester polyol is one or more of polybutylene adipate, polyhexamethylene adipate and polyethylene glycol butanediol adipate;
preferably, the polyether polyol is prepared by ring-opening polymerization of an epoxy compound by taking an active hydrogen-containing compound as an initiator; wherein the epoxy compound is one or more of propylene oxide, tetrahydrofuran, and ethylene oxide, and more preferably, the polyether polyol is polytetramethylene ether glycol;
preferably, the polycaprolactone polyol is prepared by ring-opening polymerization of monomer epsilon-caprolactone and an initiator, wherein the initiator is one or more of 1, 4-butanediol, neopentyl glycol, 1, 6-hexanediol, diethylene glycol and ethylene glycol; preferably, the initiator is neopentyl glycol;
preferably, the polycarbonate polyol is prepared by transesterification of small-molecule dihydric alcohol and small-molecule carbonic ester; wherein the small molecular dihydric alcohol is one or more of 1, 6-hexanediol, 1, 4-butanediol, 1, 4-cyclohexanedimethanol, 1, 5-pentanediol and 3-methylpentanediol; the small molecule carbonic ester is one or more of dimethyl carbonate, diethyl carbonate, dipropyl carbonate, diphenyl carbonate, ethylene carbonate or propylene carbonate; more preferably, the small molecule carbonate is ethylene carbonate.
4. A thermoplastic polyurethane elastomer according to any of claims 1 to 3, characterized in that the component B) diisocyanate is one or more of toluene diisocyanate, diphenylmethane diisocyanate, 1, 5-naphthalene diisocyanate, p-phenylene diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, xylylene diisocyanate, 3-dimethyl-4, 4-biphenyl diisocyanate, cyclohexane dimethylene diisocyanate, 4-dicyclohexylmethane diisocyanate, 3-dimethyl-4, 4-diphenylmethane diisocyanate;
preferably, the diisocyanate of the component B) is one or more of toluene diisocyanate, diphenylmethane diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate and cyclohexanedimethylene diisocyanate.
5. The thermoplastic polyurethane elastomer according to any of claims 1 to 4, wherein the component C) diisocyanate polymer (n > 2) is one or more of toluene diisocyanate trimer, polymethylene polyphenyl polyisocyanate, hexamethylene diisocyanate trimer, hexamethylene diisocyanate biuret, isophorone diisocyanate trimer, toluene diisocyanate-trimethylolpropane adduct, triphenylmethane triisocyanate;
preferably, the component C) diisocyanate polymer is one or more of toluene diisocyanate trimer, polymethylene polyphenyl polyisocyanate, hexamethylene diisocyanate trimer, hexamethylene diisocyanate biuret.
6. The thermoplastic polyurethane elastomer according to any one of claims 1 to 5, wherein the component D) glycol chain extender is selected from one or more of ethylene glycol, 1, 3-propanediol, 1, 4-butanediol, 1, 5-pentanediol, 1, 6-hexanediol, diethylene glycol, 1, 2-propanediol, methyl pentanediol, 1, 4-cyclohexanediol, neopentyl glycol, terephthalyl alcohol;
preferably, the small molecular diol chain extender of the component D) is one or more of ethylene glycol, 1, 3-propylene glycol, 1, 4-butanediol and 1, 6-hexanediol.
7. The thermoplastic polyurethane elastomer of any one of claims 1 to 6, wherein the hydroxyl/amine isopropylaniline chain extending cross-linker of component E) has the following structural formula:
wherein R is selected from H, CH 3 And CH (CH) 2 CH 3 Any one of the following
Wherein R is 1 And R is 2 Selected from OH and NH respectively 2 Any one of them.
8. The thermoplastic polyurethane elastomer according to any one of claims 1 to 7, wherein one or more of methyl titanate, ethyl titanate, propyl titanate, butyl titanate, stannous octoate, dibutyltin dilaurate, triethylenediamine are optionally added as a catalyst for polymerization; and/or, optionally, an auxiliary agent comprising an antioxidant, a light stabilizer, an ultraviolet absorber, and a lubricant is added to the elastomer.
9. The method for producing a thermoplastic polyurethane elastomer according to any one of claims 1 to 8, comprising the following production steps:
polyol, diisocyanate trimer and micromolecular dihydric alcohol chain extender containing optional auxiliary agent and catalyst are uniformly mixed, then fed into a reactive double-screw extruder, the reaction zone is 2-9, and the hydroxyl/amine isopropylaniline chain extender cross-linking agent is added into the 7-9 area at the rear end of the reaction zone, and the granules of the thermoplastic polyurethane elastomer are obtained after reaction extrusion, underwater granulating and hopper drying.
Preferably, the temperature of the twin-screw extruder is 120-250 ℃, the rear end of the reaction zone is 7 zones, the screw rotating speed is 800-1200RPM, the granulating water temperature is 30-60 ℃, the drying temperature is 40-80 ℃, and the drying time is 30min-2h.
10. Use of the thermoplastic polyurethane elastomer according to any one of claims 1 to 8 or the thermoplastic polyurethane elastomer produced by the production process of claim 9 in the fields of sole materials, blend modification and industrial goods.
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