CN112210068A - Moisture-curable modified polysiloxane, and preparation method and application thereof - Google Patents
Moisture-curable modified polysiloxane, and preparation method and application thereof Download PDFInfo
- Publication number
- CN112210068A CN112210068A CN202011114396.4A CN202011114396A CN112210068A CN 112210068 A CN112210068 A CN 112210068A CN 202011114396 A CN202011114396 A CN 202011114396A CN 112210068 A CN112210068 A CN 112210068A
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- China
- Prior art keywords
- alkyl
- moisture
- modified polysiloxane
- polysiloxane
- aryl
- Prior art date
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- -1 polysiloxane Polymers 0.000 title claims abstract description 101
- 229920001296 polysiloxane Polymers 0.000 title claims abstract description 83
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 22
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 17
- 239000004945 silicone rubber Substances 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 14
- 125000000217 alkyl group Chemical group 0.000 claims description 32
- 125000003545 alkoxy group Chemical group 0.000 claims description 25
- 125000003118 aryl group Chemical group 0.000 claims description 20
- 239000003054 catalyst Substances 0.000 claims description 18
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 17
- 229910000077 silane Inorganic materials 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 11
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 125000001261 isocyanato group Chemical group *N=C=O 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 8
- 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 8
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 8
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 8
- 125000001624 naphthyl group Chemical group 0.000 claims description 8
- 239000006229 carbon black Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 7
- INJVFBCDVXYHGQ-UHFFFAOYSA-N n'-(3-triethoxysilylpropyl)ethane-1,2-diamine Chemical compound CCO[Si](OCC)(OCC)CCCNCCN INJVFBCDVXYHGQ-UHFFFAOYSA-N 0.000 claims description 7
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 claims description 6
- 229910021485 fumed silica Inorganic materials 0.000 claims description 5
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 4
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims description 4
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 claims description 3
- 229910021626 Tin(II) chloride Inorganic materials 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004595 color masterbatch Substances 0.000 claims description 3
- DIVTWACHZOQOBF-UHFFFAOYSA-K diacetyloxy(butyl)stannanylium;acetate Chemical compound CCCC[Sn](OC(C)=O)(OC(C)=O)OC(C)=O DIVTWACHZOQOBF-UHFFFAOYSA-K 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000001119 stannous chloride Substances 0.000 claims description 3
- 235000011150 stannous chloride Nutrition 0.000 claims description 3
- 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 3
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 2
- HYZQBNDRDQEWAN-LNTINUHCSA-N (z)-4-hydroxypent-3-en-2-one;manganese(3+) Chemical compound [Mn+3].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O HYZQBNDRDQEWAN-LNTINUHCSA-N 0.000 claims description 2
- KYVBNYUBXIEUFW-UHFFFAOYSA-N 1,1,3,3-tetramethylguanidine Chemical compound CN(C)C(=N)N(C)C KYVBNYUBXIEUFW-UHFFFAOYSA-N 0.000 claims description 2
- QBDAFARLDLCWAT-UHFFFAOYSA-N 2,3-dihydropyran-6-one Chemical compound O=C1OCCC=C1 QBDAFARLDLCWAT-UHFFFAOYSA-N 0.000 claims description 2
- MMEDJBFVJUFIDD-UHFFFAOYSA-N 2-[2-(carboxymethyl)phenyl]acetic acid Chemical compound OC(=O)CC1=CC=CC=C1CC(O)=O MMEDJBFVJUFIDD-UHFFFAOYSA-N 0.000 claims description 2
- QUVMSYUGOKEMPX-UHFFFAOYSA-N 2-methylpropan-1-olate;titanium(4+) Chemical compound [Ti+4].CC(C)C[O-].CC(C)C[O-].CC(C)C[O-].CC(C)C[O-] QUVMSYUGOKEMPX-UHFFFAOYSA-N 0.000 claims description 2
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 2
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 claims 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 claims description 2
- KOCNEGIRWOWHSW-UHFFFAOYSA-J 4-ethyl-3-oxo-2,2-di(propan-2-yloxy)hexanoate titanium(4+) Chemical compound C(C)(C)OC(C(=O)[O-])(C(=O)C(CC)CC)OC(C)C.[Ti+4].C(C)(C)OC(C(=O)[O-])(C(=O)C(CC)CC)OC(C)C.C(C)(C)OC(C(=O)[O-])(C(=O)C(CC)CC)OC(C)C.C(C)(C)OC(C(=O)[O-])(C(=O)C(CC)CC)OC(C)C KOCNEGIRWOWHSW-UHFFFAOYSA-J 0.000 claims description 2
- GMHRCBYLXIQZOP-UHFFFAOYSA-N C(C)O[SiH](OCC)OCC.N=C=O Chemical compound C(C)O[SiH](OCC)OCC.N=C=O GMHRCBYLXIQZOP-UHFFFAOYSA-N 0.000 claims description 2
- SHEMHIURJRFVCM-UHFFFAOYSA-N CO[SiH](OC)OC.N=C=O Chemical compound CO[SiH](OC)OC.N=C=O SHEMHIURJRFVCM-UHFFFAOYSA-N 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- 238000007259 addition reaction Methods 0.000 claims description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 2
- 150000007854 aminals Chemical class 0.000 claims description 2
- 229910052797 bismuth Inorganic materials 0.000 claims description 2
- 229910052793 cadmium Inorganic materials 0.000 claims description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 2
- CJOBVZJTOIVNNF-UHFFFAOYSA-N cadmium sulfide Chemical compound [Cd]=S CJOBVZJTOIVNNF-UHFFFAOYSA-N 0.000 claims description 2
- 239000013522 chelant Substances 0.000 claims description 2
- NBBQQQJUOYRZCA-UHFFFAOYSA-N diethoxymethylsilane Chemical compound CCOC([SiH3])OCC NBBQQQJUOYRZCA-UHFFFAOYSA-N 0.000 claims description 2
- PKTOVQRKCNPVKY-UHFFFAOYSA-N dimethoxy(methyl)silicon Chemical compound CO[Si](C)OC PKTOVQRKCNPVKY-UHFFFAOYSA-N 0.000 claims description 2
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 2
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 2
- DRUOQOFQRYFQGB-UHFFFAOYSA-N ethoxy(dimethyl)silicon Chemical compound CCO[Si](C)C DRUOQOFQRYFQGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910021389 graphene Inorganic materials 0.000 claims description 2
- MDLRQEHNDJOFQN-UHFFFAOYSA-N methoxy(dimethyl)silicon Chemical compound CO[Si](C)C MDLRQEHNDJOFQN-UHFFFAOYSA-N 0.000 claims description 2
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 claims description 2
- QWKNJEQSNTVKBL-UHFFFAOYSA-N n-triethoxysilylaniline Chemical compound CCO[Si](OCC)(OCC)NC1=CC=CC=C1 QWKNJEQSNTVKBL-UHFFFAOYSA-N 0.000 claims description 2
- LDWBQADKOUWRIR-UHFFFAOYSA-N n-trimethoxysilylaniline Chemical compound CO[Si](OC)(OC)NC1=CC=CC=C1 LDWBQADKOUWRIR-UHFFFAOYSA-N 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-M phenolate Chemical compound [O-]C1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-M 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229920002050 silicone resin Polymers 0.000 claims description 2
- 239000012970 tertiary amine catalyst Substances 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 claims description 2
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 claims description 2
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 claims description 2
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- CHJMFFKHPHCQIJ-UHFFFAOYSA-L zinc;octanoate Chemical compound [Zn+2].CCCCCCCC([O-])=O.CCCCCCCC([O-])=O CHJMFFKHPHCQIJ-UHFFFAOYSA-L 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims 1
- 229940031826 phenolate Drugs 0.000 claims 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims 1
- 239000012974 tin catalyst Substances 0.000 claims 1
- 238000003860 storage Methods 0.000 abstract description 4
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 abstract description 2
- 238000001723 curing Methods 0.000 description 14
- 229920000642 polymer Polymers 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical group C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000000499 gel Substances 0.000 description 4
- 238000013008 moisture curing Methods 0.000 description 4
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 239000003431 cross linking reagent Substances 0.000 description 3
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- YOBOXHGSEJBUPB-MTOQALJVSA-N (z)-4-hydroxypent-3-en-2-one;zirconium Chemical compound [Zr].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O YOBOXHGSEJBUPB-MTOQALJVSA-N 0.000 description 1
- AXFVIWBTKYFOCY-UHFFFAOYSA-N 1-n,1-n,3-n,3-n-tetramethylbutane-1,3-diamine Chemical compound CN(C)C(C)CCN(C)C AXFVIWBTKYFOCY-UHFFFAOYSA-N 0.000 description 1
- FMGBDYLOANULLW-UHFFFAOYSA-N 3-isocyanatopropyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)CCCN=C=O FMGBDYLOANULLW-UHFFFAOYSA-N 0.000 description 1
- 238000010146 3D printing Methods 0.000 description 1
- FTJYCHHWDOQGGJ-UHFFFAOYSA-N CCO[SiH](CCCN=C=O)OCC Chemical compound CCO[SiH](CCCN=C=O)OCC FTJYCHHWDOQGGJ-UHFFFAOYSA-N 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 description 1
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 125000001891 dimethoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- OLRJXMHANKMLTD-UHFFFAOYSA-N silyl Chemical compound [SiH3] OLRJXMHANKMLTD-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- FRGPKMWIYVTFIQ-UHFFFAOYSA-N triethoxy(3-isocyanatopropyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCN=C=O FRGPKMWIYVTFIQ-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
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- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/778—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur silicon
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- 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
- C08G18/61—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
The invention relates to moisture-curable modified polysiloxane, a preparation method and application thereof. The modified polysiloxane has a single linear structure, the end group is siloxy, the modified polysiloxane can be cured by moisture at room temperature, the viscosity before and after curing is stable, and the modified polysiloxane has the advantages of mild curing conditions, no limitation of curing depth and deep curing. The modified polysiloxane is applied to preparing room temperature vulcanized silicone rubber, can fundamentally solve the problem of viscosity peak in the curing process of the traditional polysiloxane, improves the storage stability of the product, ensures the normal curing of the product, and has excellent performance and good application value.
Description
Technical Field
The invention relates to modified polysiloxane, in particular to moisture-curable modified polysiloxane, a preparation method thereof and application of alkoxy polysiloxane in a silicone rubber composition, and belongs to the field of organic silicon adhesives.
Background
The single-component room temperature moisture vulcanized silicone rubber product is convenient to apply, less affected by temperature in the vulcanization process and good in adhesion, and is widely applied to the fields of buildings, electronics and electrics, aerospace, automobile accessories and photovoltaic cells. Room temperature vulcanizing silicone rubbers generally consist of a hydroxyl terminated polysiloxane, an alkoxysilane crosslinking agent, a filler, and an organometallic catalyst. In the process of mixing preparation, a transient crosslinking process can occur, which causes the viscosity of the system to be increased rapidly, even the phenomenon of gel agglomeration, called as viscosity peak, needs to be acted by high shear force and placed for a period of time to reduce the viscosity, and seriously affects the processing safety and the production efficiency. In addition, in the storage process, the silicon hydroxyl and the cross-linking agent react to separate out alcohol micromolecules, and the small molecular alcohol substances can react with polysiloxane in the matrix to generate low-activity monoalkoxyl polymers, so that the system cannot be solidified into a film in the application process, and the application effect and the storage stability of the product are influenced.
Chinese patent (CN201310395394.0) and Chinese patent (CN201711371842.8) disclose a method for preparing alkoxy-terminated polysiloxane by condensation reaction of hydroxyl-terminated polysiloxane and micromolecular silane containing 2-4 alkoxy. The method has the defects that the system is easy to leave small alkoxy silane molecules, and the small alkoxy silane molecules are equivalent to a crosslinking agent in the system and influence the curing performance of the product in the later film forming process. In addition, because the activities of the alkoxy micromolecule reactive groups are the same, the system is easy to crosslink and gel in the end capping process, and the preparation effect and the product performance are influenced. Also, to ensure consistency of polymer viscosity before and after capping, the capped polymer is generally not of a single linear structure. Meanwhile, when the alkoxy-terminated polysiloxane is prepared by the method, the reaction process is often carried out under the conditions of adding a solvent and high shear in order to avoid serious crosslinking gel of the system, the process is complex, and the reaction is difficult to control. Therefore, the preparation method of the alkoxy-terminated polysiloxane polymer with a single product structure and the room temperature vulcanized silicone rubber composition thereof has very important significance, and the reaction process is simple, the process is easy to control, the system gel problem is not required to be considered.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a modified polysiloxane which has a single linear structure and a silane oxygen group as a terminal group, can be cured by moisture at room temperature, has stable viscosity before and after curing, and has the advantages of mild curing conditions, no curing depth limitation and deep curing.
It is a second object of the present invention to provide a process for producing a modified polysiloxane with a simple process and at low cost.
The third purpose of the invention is to provide an application of the modified polysiloxane, the modified polysiloxane is applied to the preparation of room temperature vulcanized silicone rubber, the problem of viscosity peak in the curing process of the traditional polysiloxane can be fundamentally solved, the storage stability of the product is improved, the normal curing of the product is ensured, and the prepared silicone rubber composition has excellent performance and good application value.
In order to achieve the above technical object, the present invention provides a moisture-curable modified polysiloxane having a structure of formula 1:
wherein,
R1is aryl, alkyl or arylalkyl;
R2is C1~C8An aliphatic hydrocarbon group of (1);
x and y are both integers of 2-5; n is a natural integer greater than 1; z is an integer of 1-8; j is 0, 1 or 2.
As a preferred embodiment, R1When aryl, aryl is phenyl, naphthyl, or contains C1~C10Alkyl or C1~C10Phenyl of alkoxy; wherein, C on the benzene ring1~C10Alkyl or C1~C10The position of the alkoxy group on the benzene ring is not limited, and C1~C10The alkyl group may be a straight-chain alkyl group such as methyl, propyl, octyl, etc., and when the number of carbon atoms of the alkyl group exceeds 3, the alkyl group may be a branched alkyl group such as isobutyl, etc.; c1~C10The alkoxy group may be a linear alkoxy group such as methoxy, ethoxy, and the like.
As a preferred embodiment, R1When it is an alkyl group, the alkyl group is C1~C10An alkyl group; and C1~C10The alkyl group may be a straight-chain alkyl group such as methyl, propyl, octyl, etc., and when the number of carbon atoms of the alkyl group exceeds 3, the alkyl group may be a branched alkyl group such as isobutyl, etc.
R1Is arylalkyl, which is C having an aryl substituent1~C10Alkyl, wherein the aryl substituent is phenyl, naphthyl, or contains C1~C10Alkyl or C1~C10Phenyl of alkoxy; said compound containing C1~C10Alkyl or C1~C10In the phenyl group of the alkoxy group, C on the benzene ring1~C10Alkyl or C1~C10The position of the alkoxy group on the benzene ring is not limited, and C1~C10The alkyl group may be a straight-chain alkyl group such as methyl, propyl, octyl, etc., and when the number of carbon atoms of the alkyl group exceeds 3, the alkyl group may be a branched alkyl group such as isobutyl, etc.; c1~C10The alkoxy group may be a linear alkoxy group such as methoxy, ethoxy, and the like.
The invention also provides a preparation method of the moisture-curable modified polysiloxane, which is obtained by addition reaction of the double-end hydroxyl alkyl polysiloxane and the isocyanato alkoxy silane;
the double-terminal hydroxyl alkyl polysiloxane has a structure shown in a formula 2:
the isocyanatoalkoxysilane has the structure of formula 3:
wherein,
R1is aryl, alkyl or arylalkyl;
R2is C1~C8An aliphatic hydrocarbon group of (1);
x and y are both integers of 2-5; n is a natural integer greater than 1; z is an integer of 1-8; j is 0, 1 or 2.
As a preferred embodiment, R1When aryl, aryl is phenyl, naphthyl, or contains C1~C10Alkyl or C1~C10Phenyl of alkoxy; r1When it is an alkyl group, the alkyl group is C1~C10An alkyl group; r1Is arylalkyl, which is C having an aryl substituent1~C10Alkyl, wherein aryl is phenyl, naphthyl, or contains C1~C10Alkyl or C1~C10Phenyl of alkoxy.
As a preferable scheme, the double-end hydroxyl alkyl polysiloxane and the isocyanato alkoxy silane react for 2-8 hours at the temperature of 40-80 ℃ under the action of a catalyst.
As a preferable scheme, the reaction ratio of the double-end hydroxyl alkyl polysiloxane and the isocyanato alkoxy silane is measured according to the molar ratio of hydroxyl to isocyanate of 1: 1.0-3.0.
As a preferable mode, the catalyst is at least one of zirconium chelate (e.g., zirconium acetylacetonate, beta-diketonate, etc.), tertiary amine catalyst (e.g., triethylamine, triethylenediamine, tetramethylbutanediamine, aminoalcohol, etc.), organotin catalyst (e.g., dibutyltin dilaurate, dibutyltin diacetate, stannous octoate, tin chloride, stannous chloride, butyltin acetate, etc.), N-methylmorpholine, triphenylphosphine, dinonylnaphthalenedisulfonic acid, bismuth carboxylate, zinc octoate, cobalt octoate, manganese acetylacetonate, tetramethylguanidine, N-N-butyltetramethylguanidine, aminal, amidine salt, phenoxide, organotitanium, and titanium complex catalyst.
Preferably, the amount of the catalyst is 0.0005 to 0.05 mass% based on the weight of the hydrocarbyl-terminated polysiloxane.
As a preferred embodiment, the viscosity of the both-terminal hydroxyalkyl polysiloxane is in the range of
100-500000 cst. Preferably 1000 to 30000cst
The invention also provides application of the moisture-curable modified polysiloxane in preparation of room-temperature vulcanized silicone rubber.
As a preferred technical scheme, the room temperature vulcanized silicone rubber comprises the following raw materials in parts by mass: 20-80 parts of modified polysiloxane; 0-50 parts of a filler; 0.1-4 parts of a catalyst; 0.1-4 parts of a tackifier; 0.1-3 parts of color master batch. Further preferably, the room temperature vulcanized silicone rubber comprises the following raw materials in parts by mass:
30-80 parts of modified polysiloxane; 20-40 parts of a filler; 0.5-4 parts of a catalyst; 0.5-3 parts of a tackifier; 0.4-1 part of color master batch.
As a preferred embodiment, the filler is at least one of calcium carbonate, graphene oxide, fumed silica, precipitated silica, alumina, zinc oxide, silicone resin, and aluminum hydroxide.
In a preferred embodiment, the catalyst is at least one of dibutyltin dilaurate, dibutyltin diacetate, stannous octoate, stannic chloride, stannous chloride, butyltin acetate, tetraisopropyl titanate, n-butyl titanate, tetra-t-butyl titanate, tetraisobutyl titanate, and titanium diisopropoxydiethylacetoacetate.
As a preferable scheme, the tackifier is at least one of gamma-methacryloxypropyltrimethoxysilane, aminopropyltrimethoxysilane, aminoethylaminopropyltrimethoxysilane, aminopropyltriethoxysilane, aminoethylaminopropyltriethoxysilane, gamma-glycidoxypropyltrimethoxysilane, gamma-glycidoxypropyltriethoxysilane, isocyanate trimethoxysilane, isocyanate triethoxysilane, phenylaminotrimethoxysilane, phenylaminotriethoxysilane, diethoxymethylsilane, dimethylethoxysilane, triethoxysilane, dimethylmethoxysilane, methyldimethoxysilane, trimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, and mercaptopropyltrimethoxysilane.
As a preferable scheme, the color master is at least one of silica gel color master, cadmium red, cadmium yellow, titanium dioxide, carbon black, iron oxide red and iron oxide yellow.
The modified polysiloxane is prepared by the following method: mixing the bi-terminal alkyl hydroxyl polysiloxane and isocyanato alkoxy silane according to the molar ratio of hydroxyl to isocyanato of 1: 1-3, adding a catalyst, stirring and mixing under a vacuum condition, wherein the reaction temperature is 40-80 ℃, and the reaction time is 2-8 hours, so as to obtain the moisture curing modified polysiloxane polymer.
The invention also provides a preparation method of the room-temperature moisture-curable silicone rubber, which comprises the following steps:
step 1): mixing polysiloxane with alkyl hydroxyl at two ends and isocyanato-alkoxy silane according to the molar ratio of 1: 1-3, adding a certain amount of catalyst, stirring and mixing under a vacuum condition, wherein the reaction temperature is 40-80 ℃, and the reaction time is 2-8 hours, so as to prepare the moisture-curable polysiloxane polymer.
Step 2): the dry moisture curing polysiloxane polymer, the filler, the catalyst, the tackifier and the color master are mechanically mixed and sealed according to a certain proportion under the vacuum sealing condition, and a single-component room-temperature moisture curing silicone rubber product can be obtained.
Compared with the prior art, the technical scheme of the invention has the following beneficial technical effects:
the modified polysiloxane has a single linear structure, the end group is siloxy, the modified polysiloxane can be cured by moisture at room temperature, the viscosity before and after curing is stable, the modified polysiloxane has the advantages of mild curing conditions, no limitation of curing depth and deep curing, and the problems that the production efficiency is influenced and the production safety is influenced by the viscosity peak in the traditional process of curing the hydroxyl-terminated polysiloxane mixed glue by moisture at room temperature are effectively solved.
The modified polysiloxane provided by the invention has good bonding performance when being used for curing vulcanized silicone rubber, and can be widely applied to the fields of electronic bonding, packaging, building sealing, photovoltaic cells, automobile parts, 3D printing and the like.
The modified polysiloxane of the invention has simple preparation steps and low cost, and is beneficial to industrial large-scale production.
Drawings
FIG. 1 is an infrared comparison of the product of the hydroxyalkyl polysiloxane and trimethoxy terminated polysiloxane of example 1.
Detailed Description
The present invention is further illustrated by the following detailed description and examples, but the scope of the claims is not limited by the specific examples.
Example 1
100g of 1000cst (hydroxyl content is 6.0mmol/100g) hydroxyalkyl polysiloxane, 1.3g of isocyanatopropyl trimethoxy silane and 1 part of n-butyl titanate are added into a reaction kettle provided with a thermometer, a stirrer and a snakelike condensation tube, and stirred and reacted for 4 hours in a vacuum state to obtain a trimethoxy end-capped polysiloxane product with the viscosity of 1200 cst.
The infrared comparison of the hydroxyalkyl polysiloxane with trimethoxy terminated polysiloxane product is shown in FIG. 1. In the hydroxyalkyl polysiloxanes, the silyl radical (Si-CH)3) The peak of the stretching vibration of the diaphragm appears at 2964 cm-1And 2906 cm-1At least one of (1) and (b); the symmetric deformation vibration peak appears at 1261cm-1And 1411cm-1At least one of (1) and (b); 2848cm-1The absorption at (A) is due to methylene (CH)2) Characteristic peak of (a); 1020cm-1And 1099 cm-1The characteristic absorption of (A) is the antisymmetric stretching vibration absorption of silicon oxygen (Si-O-Si) bond, and the characteristic peak of hydroxyl (OH) appears at 3693cm-1To (3). The modified polysiloxane was predominantly expressed at 3693cm in comparison with the FT-IR infrared spectrum of the hydroxyhydrocarbyl polysiloxane-1The characteristic peak of hydroxyl (-OH) group had completely disappeared, and the characteristic peak of NH group in urethane group was 3370cm-1It is shown that hydroxyl groups in the hydroxyalkyl polysiloxane molecule completely undergo a hydroxyl esterification reaction with isocyanate groups, and isocyanatoalkoxysilane has been successfully introduced into the molecular backbone.
Example 2
100g of 5000cst (hydroxyl content is 3.0mmol/100g) hydroxyalkyl polysiloxane, 0.9g of isocyanatopropyl triethoxysilane and 1 part of n-butyl titanate are added into a reaction kettle provided with a thermometer, a stirrer and a snakelike condensing tube, and stirred and reacted for 4 hours in a vacuum state to obtain a triethoxy terminated polysiloxane product with the viscosity of 6000 cst.
Example 3
20000cst (hydroxyl content 1.0mmol/100g) of hydroxyalkyl polysiloxane 100g, isocyanatopropyl diethoxysilane 0.2g and n-butyl titanate 1 part are added into a reaction kettle provided with a thermometer, a stirrer and a serpentine condenser, and stirred and reacted for 4 hours in a vacuum state to obtain dimethoxy terminated polysiloxane with the viscosity of 23000 cst.
Example 4
According to parts by weight, 50 parts of polysiloxane prepared in example 1, 15 parts of fumed silica, 0.5 part of dibutyltin dilaurate, 2 parts of aminoethyl aminopropyl triethoxysilane and 1 part of carbon black are uniformly stirred.
Example 5
By weight, 50 parts of polysiloxane prepared in example 2, 15 parts of calcium carbonate, 0.5 part of dibutyltin dilaurate, 2 parts of aminoethyl aminopropyl triethoxysilane and 1 part of carbon black are uniformly stirred.
Example 6
50 parts of polysiloxane prepared in example 3, 15 parts of calcium carbonate, 0.5 part of dibutyltin dilaurate, 2 parts of aminoethyl aminopropyl triethoxysilane and 1 part of carbon black are taken by weight parts and stirred uniformly.
Example 7
According to parts by weight, 25 parts of polysiloxane prepared in example 2, 25 parts of polysiloxane prepared in example 3, 15 parts of fumed silica, 0.5 part of dibutyltin dilaurate, 2 parts of aminoethyl aminopropyl triethoxysilane and 1 part of carbon black are uniformly stirred.
Comparative example
According to parts by weight, 50 parts of common 5000cst hydroxyl-terminated polysiloxane, 15 parts of fumed silica, 0.5 part of dibutyltin dilaurate, 2 parts of aminoethyl aminopropyl triethoxysilane and 1 part of carbon black are uniformly stirred.
The properties of the moisture-curing polysiloxanes of examples 4-7 and comparative examples are shown in the following table:
as can be seen from the above table, the modified silicone rubber prepared by using the alkoxy-terminated polysiloxane can be completely cured, and after 7 days of curing time, the comprehensive performance is obviously superior to that of a moisture-cured silicone rubber product with the same viscosity.
The above-mentioned embodiments only express the implementation mode of the present invention, and the detailed description is not to be understood as the limitation of the patent scope of the present invention. It is pointed out that several variations and modifications can be made by a person skilled in the art without departing from the inventive concept, which falls within the scope of the invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
2. The moisture-curable modified polysiloxane according to claim 1, characterized in that:
R1when aryl, aryl is phenyl, naphthyl, or contains C1~C10Alkyl or C1~C10Phenyl of alkoxy;
R1when it is an alkyl group, the alkyl group is C1~C10An alkyl group;
R1is arylalkyl, which is C having an aryl substituent1~C10Alkyl, wherein the aryl substituent is phenyl, naphthyl, or contains C1~C10Alkyl or C1~C10Phenyl of alkoxy.
3. A process for producing a moisture-curable modified polysiloxane according to claim 1 or 2, characterized in that: carrying out addition reaction on double-end hydroxyl alkyl polysiloxane and isocyanato alkoxy silane to obtain the product;
the double-terminal hydroxyl alkyl polysiloxane has a structure shown in a formula 2:
the isocyanatoalkoxysilane has the structure of formula 3:
wherein,
R1is aryl, alkyl or arylalkyl;
R2is C1~C8An aliphatic hydrocarbon group of (1);
x and y are both integers of 2-5; n is a natural integer greater than 1; z is an integer of 1-8; j is 0, 1 or 2.
4. The method of producing a moisture-curable modified polysiloxane according to claim 3, characterized in that:
R1when aryl, aryl is phenyl, naphthyl, or contains C1~C10Alkyl or C1~C10Phenyl of alkoxy;
R1when it is an alkyl group, the alkyl group is C1~C10An alkyl group;
R1is arylalkyl, which is C having an aryl substituent1~C10Alkyl, wherein aryl is phenyl, naphthyl, or contains C1~C10Alkyl or C1~C10Phenyl of alkoxy.
5. The method of producing a moisture-curable modified polysiloxane according to claim 3, characterized in that: the double-end hydroxyl alkyl polysiloxane and isocyanato alkoxy silane react for 2-8 hours at the temperature of 40-80 ℃ under the action of a catalyst.
6. The method of producing a moisture-curable modified polysiloxane according to claim 5, characterized in that: the reaction ratio of the double-end hydroxyl alkyl polysiloxane and the isocyanato alkoxy silane is measured according to the molar ratio of hydroxyl to isocyanato of 1: 1.0-3.0.
7. The method of producing a moisture-curable modified polysiloxane according to claim 5, characterized in that: the catalyst is at least one of zirconium chelate, tertiary amine catalyst, organic tin catalyst, N-methylmorpholine, triphenylphosphine, dinonyl naphthalene disulfonic acid, bismuth carboxylate, zinc octoate, cobalt octoate, manganese acetylacetonate, tetramethylguanidine, N-N-butyl tetramethylguanidine, aminal, amidine salt, phenolate, organic titanium and titanium complex catalyst;
the amount of the catalyst is 0.0005-0.05 times of the mass of the double-end alkyl polysiloxane;
the viscosity range of the double-end hydroxyl alkyl polysiloxane is 100-500000 cst.
8. Use of a moisture-curable modified polysiloxane according to claim 1, characterized in that: the preparation method is applied to the preparation of room temperature vulcanization type silicon rubber.
9. Use of a moisture-curable modified polysiloxane according to claim 8, characterized in that: the room temperature vulcanized silicone rubber comprises the following raw materials in parts by mass:
20-80 parts of modified polysiloxane;
0-50 parts of a filler;
0.1-4 parts of a catalyst;
0.1-4 parts of a tackifier;
0.1-3 parts of color master batch.
10. Use of a moisture-curable modified polysiloxane according to claim 9, characterized in that: the filler is at least one of calcium carbonate, graphene oxide, fumed silica, precipitated silica, aluminum oxide, zinc oxide, silicone resin and aluminum hydroxide;
the catalyst is at least one of dibutyltin dilaurate, dibutyltin diacetate, stannous octoate, tin chloride, stannous chloride, butyltin acetate, tetraisopropyl titanate, n-butyl titanate, tetra-tert-butyl titanate, tetraisobutyl titanate and titanium diisopropoxydiethylacetoacetate;
the tackifier is at least one of gamma-methacryloxypropyltrimethoxysilane, aminopropyltrimethoxysilane, aminoethylaminopropyltrimethoxysilane, aminopropyltriethoxysilane, aminoethylaminopropyltriethoxysilane, gamma-glycidoxypropyltrimethoxysilane, gamma-glycidoxypropyltriethoxysilane, isocyanate trimethoxysilane, isocyanate triethoxysilane, phenylaminotrimethoxysilane, phenylaminotriethoxysilane, diethoxymethylsilane, dimethylethoxysilane, triethoxysilane, dimethylmethoxysilane, methyldimethoxysilane, trimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane and mercaptopropyltrimethoxysilane;
the color master is at least one of silica gel color master, cadmium red, cadmium yellow, titanium dioxide, carbon black, iron oxide red and iron oxide yellow.
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Application publication date: 20210112 |