WO2020022406A1 - フロロシリコーンゴムとシリコーンゴムとの積層体の製造方法 - Google Patents
フロロシリコーンゴムとシリコーンゴムとの積層体の製造方法 Download PDFInfo
- Publication number
- WO2020022406A1 WO2020022406A1 PCT/JP2019/029108 JP2019029108W WO2020022406A1 WO 2020022406 A1 WO2020022406 A1 WO 2020022406A1 JP 2019029108 W JP2019029108 W JP 2019029108W WO 2020022406 A1 WO2020022406 A1 WO 2020022406A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- rubber composition
- fluorosilicone rubber
- silicone rubber
- mass
- Prior art date
Links
- 229920005560 fluorosilicone rubber Polymers 0.000 title claims abstract description 162
- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 126
- 239000004945 silicone rubber Substances 0.000 title claims abstract description 126
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 239000000203 mixture Substances 0.000 claims abstract description 146
- 125000003709 fluoroalkyl group Chemical group 0.000 claims abstract description 71
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 41
- 125000003342 alkenyl group Chemical group 0.000 claims abstract description 39
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 20
- 238000006459 hydrosilylation reaction Methods 0.000 claims abstract description 20
- 239000003054 catalyst Substances 0.000 claims abstract description 18
- 150000001451 organic peroxides Chemical class 0.000 claims abstract description 13
- 238000010030 laminating Methods 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 60
- 125000000962 organic group Chemical group 0.000 claims description 31
- 239000000377 silicon dioxide Substances 0.000 claims description 23
- 239000000843 powder Substances 0.000 claims description 14
- 239000007809 chemical reaction catalyst Substances 0.000 claims description 8
- 239000002683 reaction inhibitor Substances 0.000 claims description 8
- 230000003197 catalytic effect Effects 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 abstract 1
- -1 3,3,3-trifluoropropyl group Chemical group 0.000 description 90
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 36
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 34
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 32
- 238000000034 method Methods 0.000 description 29
- 229920001577 copolymer Polymers 0.000 description 25
- 229920001971 elastomer Polymers 0.000 description 20
- 150000001875 compounds Chemical class 0.000 description 19
- 229910052697 platinum Inorganic materials 0.000 description 17
- 125000004432 carbon atom Chemical group C* 0.000 description 16
- 238000000465 moulding Methods 0.000 description 16
- 238000001723 curing Methods 0.000 description 13
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 13
- 230000002093 peripheral effect Effects 0.000 description 12
- 229910021485 fumed silica Inorganic materials 0.000 description 10
- 125000000217 alkyl group Chemical group 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 239000000295 fuel oil Substances 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 6
- 238000004073 vulcanization Methods 0.000 description 6
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 5
- 238000000748 compression moulding Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 150000002430 hydrocarbons Chemical group 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229920001843 polymethylhydrosiloxane Polymers 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 4
- 125000000094 2-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 125000003710 aryl alkyl group Chemical group 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 4
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 125000000753 cycloalkyl group Chemical group 0.000 description 4
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 description 4
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 4
- BITPLIXHRASDQB-UHFFFAOYSA-N ethenyl-[ethenyl(dimethyl)silyl]oxy-dimethylsilane Chemical compound C=C[Si](C)(C)O[Si](C)(C)C=C BITPLIXHRASDQB-UHFFFAOYSA-N 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 4
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 125000003944 tolyl group Chemical group 0.000 description 4
- QYLFHLNFIHBCPR-UHFFFAOYSA-N 1-ethynylcyclohexan-1-ol Chemical compound C#CC1(O)CCCCC1 QYLFHLNFIHBCPR-UHFFFAOYSA-N 0.000 description 3
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 3
- 239000004342 Benzoyl peroxide Substances 0.000 description 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 3
- 235000019400 benzoyl peroxide Nutrition 0.000 description 3
- 125000004369 butenyl group Chemical group C(=CCC)* 0.000 description 3
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 125000006038 hexenyl group Chemical group 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920006136 organohydrogenpolysiloxane Polymers 0.000 description 3
- 125000005372 silanol group Chemical group 0.000 description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 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 description 2
- 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 2
- 229910052684 Cerium Inorganic materials 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000006230 acetylene black Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- 239000008116 calcium stearate Substances 0.000 description 2
- 235000013539 calcium stearate Nutrition 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 235000019241 carbon black Nutrition 0.000 description 2
- VDFSVAOAUUWORM-UHFFFAOYSA-N cerium(3+) oxidosilane Chemical class [Ce+3].[O-][SiH3].[O-][SiH3].[O-][SiH3] VDFSVAOAUUWORM-UHFFFAOYSA-N 0.000 description 2
- 239000006231 channel black Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- OLLFKUHHDPMQFR-UHFFFAOYSA-N dihydroxy(diphenyl)silane Chemical class C=1C=CC=CC=1[Si](O)(O)C1=CC=CC=C1 OLLFKUHHDPMQFR-UHFFFAOYSA-N 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- RCNRJBWHLARWRP-UHFFFAOYSA-N ethenyl-[ethenyl(dimethyl)silyl]oxy-dimethylsilane;platinum Chemical compound [Pt].C=C[Si](C)(C)O[Si](C)(C)C=C RCNRJBWHLARWRP-UHFFFAOYSA-N 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000006232 furnace black Substances 0.000 description 2
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- QXLPXWSKPNOQLE-UHFFFAOYSA-N methylpentynol Chemical compound CCC(C)(O)C#C QXLPXWSKPNOQLE-UHFFFAOYSA-N 0.000 description 2
- 239000006082 mold release agent Substances 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 150000003961 organosilicon compounds Chemical class 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- HMVBQEAJQVQOTI-SOFGYWHQSA-N (e)-3,5-dimethylhex-3-en-1-yne Chemical compound CC(C)\C=C(/C)C#C HMVBQEAJQVQOTI-SOFGYWHQSA-N 0.000 description 1
- XLYMOEINVGRTEX-ONEGZZNKSA-N (e)-4-ethoxy-4-oxobut-2-enoic acid Chemical compound CCOC(=O)\C=C\C(O)=O XLYMOEINVGRTEX-ONEGZZNKSA-N 0.000 description 1
- KNIBYEXSDVPWDA-ARJAWSKDSA-N (z)-4-(1-methoxypropan-2-yloxy)-4-oxobut-2-enoic acid Chemical compound COCC(C)OC(=O)\C=C/C(O)=O KNIBYEXSDVPWDA-ARJAWSKDSA-N 0.000 description 1
- IQBLWPLYPNOTJC-FPLPWBNLSA-N (z)-4-(2-ethylhexoxy)-4-oxobut-2-enoic acid Chemical compound CCCCC(CC)COC(=O)\C=C/C(O)=O IQBLWPLYPNOTJC-FPLPWBNLSA-N 0.000 description 1
- FDNBQVCBHKEDOJ-FPLPWBNLSA-N (z)-4-(6-methylheptoxy)-4-oxobut-2-enoic acid Chemical compound CC(C)CCCCCOC(=O)\C=C/C(O)=O FDNBQVCBHKEDOJ-FPLPWBNLSA-N 0.000 description 1
- PYOLJOJPIPCRDP-UHFFFAOYSA-N 1,1,3-trimethylcyclohexane Chemical compound CC1CCCC(C)(C)C1 PYOLJOJPIPCRDP-UHFFFAOYSA-N 0.000 description 1
- DKFHWNGVMWFBJE-UHFFFAOYSA-N 1-ethynylcyclohexene Chemical compound C#CC1=CCCCC1 DKFHWNGVMWFBJE-UHFFFAOYSA-N 0.000 description 1
- CGHIBGNXEGJPQZ-UHFFFAOYSA-N 1-hexyne Chemical compound CCCCC#C CGHIBGNXEGJPQZ-UHFFFAOYSA-N 0.000 description 1
- VMAWODUEPLAHOE-UHFFFAOYSA-N 2,4,6,8-tetrakis(ethenyl)-2,4,6,8-tetramethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane Chemical compound C=C[Si]1(C)O[Si](C)(C=C)O[Si](C)(C=C)O[Si](C)(C=C)O1 VMAWODUEPLAHOE-UHFFFAOYSA-N 0.000 description 1
- CEBKHWWANWSNTI-UHFFFAOYSA-N 2-methylbut-3-yn-2-ol Chemical compound CC(C)(O)C#C CEBKHWWANWSNTI-UHFFFAOYSA-N 0.000 description 1
- NECRQCBKTGZNMH-UHFFFAOYSA-N 3,5-dimethylhex-1-yn-3-ol Chemical compound CC(C)CC(C)(O)C#C NECRQCBKTGZNMH-UHFFFAOYSA-N 0.000 description 1
- ZCTILCZSUSTVHT-UHFFFAOYSA-N 3,5-dimethylhex-1-yn-3-yloxy(trimethyl)silane Chemical compound CC(C)CC(C)(C#C)O[Si](C)(C)C ZCTILCZSUSTVHT-UHFFFAOYSA-N 0.000 description 1
- ITRFWRDOAWGZFV-UHFFFAOYSA-N 3-[[[dimethyl(3,3,3-trifluoropropyl)silyl]amino]-dimethylsilyl]-1,1,1-trifluoropropane Chemical compound FC(F)(F)CC[Si](C)(C)N[Si](C)(C)CCC(F)(F)F ITRFWRDOAWGZFV-UHFFFAOYSA-N 0.000 description 1
- LAKYCCVWZNCNIO-UHFFFAOYSA-N 3-methylidenepent-1-yne Chemical compound CCC(=C)C#C LAKYCCVWZNCNIO-UHFFFAOYSA-N 0.000 description 1
- GRGVQLWQXHFRHO-UHFFFAOYSA-N 3-methylpent-3-en-1-yne Chemical compound CC=C(C)C#C GRGVQLWQXHFRHO-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- KYOGSVAQRNIVQL-VOTSOKGWSA-N CC\C=C(/C)C#C Chemical compound CC\C=C(/C)C#C KYOGSVAQRNIVQL-VOTSOKGWSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- BKPKTOIGWIYKJZ-UHFFFAOYSA-N [bis(ethenyl)-methylsilyl]oxy-bis(ethenyl)-methylsilane Chemical compound C=C[Si](C=C)(C)O[Si](C)(C=C)C=C BKPKTOIGWIYKJZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- JSAYQGVHWNBMNG-UHFFFAOYSA-N bis(2-methylbut-3-yn-2-yloxy)-prop-1-enylsilane Chemical compound CC=C[SiH](OC(C#C)(C)C)OC(C#C)(C)C JSAYQGVHWNBMNG-UHFFFAOYSA-N 0.000 description 1
- ZPOLOEWJWXZUSP-AATRIKPKSA-N bis(prop-2-enyl) (e)-but-2-enedioate Chemical compound C=CCOC(=O)\C=C\C(=O)OCC=C ZPOLOEWJWXZUSP-AATRIKPKSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- RSLWZZXJRRZAOD-UHFFFAOYSA-N but-1-en-3-yn-2-ylbenzene Chemical compound C#CC(=C)C1=CC=CC=C1 RSLWZZXJRRZAOD-UHFFFAOYSA-N 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- IEPRKVQEAMIZSS-AATRIKPKSA-N diethyl fumarate Chemical compound CCOC(=O)\C=C\C(=O)OCC IEPRKVQEAMIZSS-AATRIKPKSA-N 0.000 description 1
- LDCRTTXIJACKKU-ARJAWSKDSA-N dimethyl maleate Chemical compound COC(=O)\C=C/C(=O)OC LDCRTTXIJACKKU-ARJAWSKDSA-N 0.000 description 1
- RWGWWFFEIPJXAN-UHFFFAOYSA-N dimethyl-bis(3-methylbut-1-ynoxy)silane Chemical compound CC(C)C#CO[Si](C)(C)OC#CC(C)C RWGWWFFEIPJXAN-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- XLYMOEINVGRTEX-UHFFFAOYSA-N fumaric acid monoethyl ester Natural products CCOC(=O)C=CC(O)=O XLYMOEINVGRTEX-UHFFFAOYSA-N 0.000 description 1
- NKHAVTQWNUWKEO-UHFFFAOYSA-N fumaric acid monomethyl ester Natural products COC(=O)C=CC(O)=O NKHAVTQWNUWKEO-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- NKHAVTQWNUWKEO-IHWYPQMZSA-N methyl hydrogen fumarate Chemical compound COC(=O)\C=C/C(O)=O NKHAVTQWNUWKEO-IHWYPQMZSA-N 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 229940074369 monoethyl fumarate Drugs 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 239000000243 solution Substances 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
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 125000000725 trifluoropropyl group Chemical group [H]C([H])(*)C([H])([H])C(F)(F)F 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/20—Layered products comprising a layer of natural or synthetic rubber comprising silicone rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
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Definitions
- the present invention relates to a method for producing a laminate of fluorosilicone rubber and silicone rubber.
- Fluorosilicone rubber formed of an organopolysiloxane substantially containing a fluoroalkyl group such as 3,3,3-trifluoropropyl group has excellent heat resistance, cold resistance, oil resistance, and fuel oil resistance. It is used as a rubber material for automobiles or aircraft.
- a rubber material for automobiles in particular, for a turbo hose, a silicone rubber formed of an organopolysiloxane having a fluorosilicone rubber layer on the inner peripheral surface of the hose and having substantially no fluoroalkyl group on the outer peripheral surface of the hose. Laminates having layers are used.
- the adhesion between the fluorosilicone rubber and the silicone rubber is not sufficient, and the fluorosilicone rubber is easily peeled off at the contact interface, various methods for solving this have been proposed.
- a method for producing a laminate comprising a fluorosilicone rubber and a silicone rubber
- a fluorosilicone rubber and a rubber composition forming the silicone rubber has a viscosity at 25 ° C. of 100 mPa ⁇ s or less.
- Patent Document 1 A method in which a dimethylsiloxane / methyl (3,3,3-trifluoropropyl) siloxane copolymer having a molecular chain terminal blocked by a silanol group is blended and bonded (see Patent Document 1); a catalyst for hydrosilylation reaction; Or, an organic peroxide-curable fluorosilicone rubber composition containing an organopolysiloxane having at least two silicon-bonded hydrogen atoms in one molecule, and a hydrosilylation reaction catalyst, or at least two in a molecule.
- Organic peroxides containing organopolysiloxanes containing certain silicon-bonded hydrogen atoms A method of molding a product-curable dimethyl silicone rubber composition into a desired shape, and then curing the dimethyl silicone rubber composition while in contact with these compositions while causing a hydrosilylation reaction (see Patent Document 2); Organopolysiloxane having a trifluoromethyl group and a trifluoropropyl group, a silica-based filler, an organohydrogenpolysiloxane having a methyl (trifluoropropyl) siloxane unit and a methylhydrogensiloxane unit, and further having a methylvinylsiloxane unit, and an organic peroxide.
- a method using a fluorosilicone rubber composition composed of an oxide (see Patent Document 3); When co-vulcanizing and bonding a fluorosilicone rubber composition and a dimethyl silicone rubber composition, one or both of them have a BET specific surface area.
- a reinforcing silica of 250 m 2 / g or more, and methyl A method of blending an adhesion aid comprising an organohydrogenpolysiloxane having a (3,3,3-trifluoropropyl) siloxane unit, a methylhydrogensiloxane unit, and a dimethylvinylsiloxane unit (see Patent Document 4); A silicone rubber composition comprising a siloxane, a silica-based filler, an organohydrogenpolysiloxane having a methyl (trifluoropropyl) siloxane unit and a methylhydrogensiloxane unit, and further having a vinyl group-containing siloxane unit, and an organic peroxide.
- Patent Document 5 An organic peroxide-curable fluorosilicone rubber composition containing a hydrosilylation reaction catalyst or an organopolysiloxane having at least two silicon-bonded hydrogen atoms in one molecule; , Hydrosilyl
- An organic peroxide-curable silicone rubber composition containing a reaction catalyst or an organopolysiloxane having at least two silicon-bonded hydrogen atoms in one molecule, the fluorosilicone rubber composition and the silicone rubber composition A method has been proposed in which these compositions are cured while they are in contact with each other via a mixed composition with a product (see Patent Document 6).
- the fluorosilicone rubber composition is limited to those cured with an organic peroxide, and a hydrosilylation reaction-curable fluorosilicone rubber composition is used to form the fluorosilicone rubber and the silicone rubber. There was no interest in improving the adhesion.
- An object of the present invention is to provide a method for producing a laminate of a fluorosilicone rubber and a silicone rubber, wherein the fluorosilicone rubber layer and the silicone rubber layer are satisfactorily adhered to each other by using a hydrosilylation reaction-curable fluorosilicone rubber composition. To provide a method for manufacturing the laminated body.
- the method for producing a laminate of a fluorosilicone rubber and a silicone rubber according to the present invention is characterized by comprising at least the following steps (1) to (3).
- (1) a step of curing a fluorosilicone rubber composition containing the following components (A) to (C); (A) (A1) an organopolysiloxane having at least two alkenyl groups in one molecule and at least 20 mol% of all silicon-bonded organic groups being a fluoroalkyl group, or the components (A1) and ( A2)
- One molecule has at least two alkenyl groups and does not have a fluoroalkyl group, or even if it has a fluoroalkyl group, the proportion thereof is less than 20 mol% of the total silicon-bonded organic groups.
- Laminating a silicone rubber composition comprising: (D) one molecule has at least one alkenyl group and does not have a fluoroalkyl group, or even if it has a fluoroalkyl group, its proportion is less than 20 mol% of all silicon-bonded organic groups; (E) 0.1 to 10 parts by mass of an organic peroxide (3) a step of curing the silicone rubber composition laminated in the above step (2)
- the fluorosilicone rubber composition preferably further contains silica fine powder.
- the fluorosilicone rubber composition preferably further contains a reaction inhibitor.
- Another method of the present invention for producing a laminate of a fluorosilicone rubber and a silicone rubber is characterized by comprising at least the following steps (1 ′) and (2 ′).
- One molecule has at least two alkenyl groups and does not have a fluoroalkyl group, or even if it has a fluoroalkyl group, the proportion thereof is less than 20 mol% of the total silicon-bonded organic groups.
- the fluorosilicone rubber composition preferably further contains silica fine powder.
- the fluorosilicone rubber composition preferably further contains a reaction inhibitor.
- FIG. 1 is a perspective view of a rubber hose, which is an example of a laminate of a fluorosilicone rubber and a silicone rubber, produced by a production method of the present invention, with a partial breakage.
- FIG. 1 is a perspective view of a rubber sheet as an example of a laminate of a fluorosilicone rubber and a silicone rubber produced by the production method of the present invention.
- FIG. 4 is a perspective view of a rubber sheet as another example of a laminate of fluorosilicone rubber and silicone rubber produced by the production method of the present invention.
- the method for producing a laminate of fluorosilicone rubber and silicone rubber of the present invention is characterized by comprising at least the following steps (1) to (3).
- a fluorosilicone rubber composition containing the following components (A) to (C) is cured.
- (A) (A1) an organopolysiloxane having at least two alkenyl groups in one molecule and at least 20 mol% of all silicon-bonded organic groups being a fluoroalkyl group, or the components (A1) and ( A2)
- One molecule has at least two alkenyl groups and does not have a fluoroalkyl group, or even if it has a fluoroalkyl group, the proportion thereof is less than 20 mol% of the total silicon-bonded organic groups.
- the component (A) is a main component of the fluorosilicone rubber composition, and (A1) has at least two alkenyl groups in one molecule, and at least 20 mol% of all silicon-bonded organic groups is a fluoroalkyl group. Even if a given organopolysiloxane or the components (A1) and (A2) have at least two alkenyl groups in one molecule and no fluoroalkyl group, or have a fluoroalkyl group, their proportions Is a mixture with an organopolysiloxane having less than 20 mol% of all organic groups bonded to silicon atoms.
- Component (A1) is an organopolysiloxane having at least two alkenyl groups in one molecule and at least 20 mol% of all silicon-bonded organic groups are fluoroalkyl groups.
- alkenyl group in the component (A1) include an alkenyl group having 2 to 12 carbon atoms such as a vinyl group, an allyl group, a butenyl group, and a hexenyl group, and a vinyl group is preferable.
- fluoroalkyl group in the component (A1) a 3,3,3-trifluoropropyl group, a 4,4,4,3,3-pentafluorobutyl group, a 5,5,5,4,4,4, 3,3-heptafluoropentyl group, 6,6,6,5,5,4,4,3,3-nonafluorohexyl group, 7,7,7,6,6,5,5,4,4,
- Fluoroalkyl groups having 3 to 12 carbon atoms such as 3,3-undecafluoroheptyl group, are exemplified, and preferably 3,3,3-trifluoropropyl group, 4,4,4,3,3- A pentafluorobutyl group; a 5,5,5,4,4,3,3-heptafluoropentyl group.
- the proportion of fluoroalkyl groups in component (A1) is at least 20 mol%, preferably at least 30 mol% of the total silicon-bonded organic groups, while at most 70 mol%, or at most 60 mol% %.
- the ratio of the fluoroalkyl group can be in any range obtained by combining the above upper and lower limits. This is because if the proportion of the fluoroalkyl group in the component (A1) is at least the above lower limit, the resulting fluorosilicone rubber will have improved oil resistance and fuel oil resistance. This is because the obtained fluorosilicone rubber has improved heat resistance and cold resistance.
- Examples of the group bonded to a silicon atom other than the alkenyl group and the fluoroalkyl group in the component (A1) include a monovalent hydrocarbon group having 1 to 20 carbon atoms, preferably 1 to 8 carbon atoms. Include alkyl groups such as methyl group, ethyl group, propyl group and butyl group; cycloalkyl groups such as cyclohexyl group; aryl groups such as phenyl group and tolyl group; aralkyl groups such as benzyl group and phenethyl group; Preferably, it is an alkyl group, especially a methyl group.
- the molecular structure of the component (A1) is not limited, and examples thereof include linear, partially branched linear, and branched.
- the viscosity of the component (A1) is not limited, and is preferably a liquid having a viscosity of at least 1 Pa ⁇ s at 25 ° C. and a raw rubber.
- As the liquid in particular, those having a viscosity at 25 ° C. of at least 10 Pa ⁇ s, and at most 1,000 Pa ⁇ s are preferable.
- the viscosity of the component (A1) at 25 ° C. can be measured by a rotational viscometer based on JIS K7117-1.
- a raw rubber having a Williams plasticity of 100 to 800 at 25 ° C. or a raw rubber having a Williams plasticity of 100 to 400 or a plasticity of 200 at 25 ° C. specified in JIS K 6249 is particularly preferred.
- a raw rubber-like material of about 400 is preferred.
- Component (A2) has at least two alkenyl groups in one molecule and does not have a fluoroalkyl group, or even if it has a fluoroalkyl group, its proportion is 20% of the total silicon-bonded organic groups. Less than mol% of organopolysiloxane.
- the alkenyl group in the component (A2) include an alkenyl group having 2 to 12 carbon atoms such as a vinyl group, an allyl group, a butenyl group, and a hexenyl group, and a vinyl group is preferable.
- Component (A2) does not have a fluoroalkyl group, or even if it does, has a proportion of less than 20 mol% of all silicon-bonded organic groups.
- Examples of the fluoroalkyl group which may be contained in the component (A2) include a 3,3,3-trifluoropropyl group, a 4,4,4,3,3-pentafluorobutyl group, a 5,5,5,4 , 4,3,3-heptafluoropentyl group, 6,6,6,5,5,4,4,3,3-nonafluorohexyl group, 7,7,7,6,6,5,5,4 Fluoroalkyl groups having 3 to 12 carbon atoms such as 4,4,3,3-undecafluoroheptyl group, and the like, and preferably 3,3,3-trifluoropropyl group, 4,4,4,3 , 3-pentafluorobutyl group, 5,5,5,4,4,3,3-heptafluoropentyl group.
- Examples of the group bonded to a silicon atom other than the alkenyl group and the fluoroalkyl group in the component (A2) include a monovalent hydrocarbon group having 1 to 20 carbon atoms, preferably 1 to 8 carbon atoms. Include alkyl groups such as methyl group, ethyl group, propyl group and butyl group; cycloalkyl groups such as cyclohexyl group; aryl groups such as phenyl group and tolyl group; aralkyl groups such as benzyl group and phenethyl group; Preferably, it is an alkyl group, especially a methyl group.
- the molecular structure of the component (A2) is not limited, and examples thereof include a linear, partially branched linear, and branched chain.
- the viscosity of the component (A2) is not limited, and is preferably a liquid having a viscosity of at least 1 Pa ⁇ s at 25 ° C. to a raw rubber.
- As the liquid in particular, those having a viscosity at 25 ° C. of at least 10 Pa ⁇ s, and at most 1,000 Pa ⁇ s are preferable.
- the viscosity of the component (A2) at 25 ° C. can be measured by a rotational viscometer based on JIS # K7117-1.
- the raw rubber-like material is, in particular, a raw rubber having a Williams plasticity of 100 to 800 at 25 ° C. or a raw rubber having a Williams plasticity of 100 to 400 specified at JIS K 6249.
- Component (A) is component (A1) alone or a mixture of component (A1) and component (A2).
- the mixing ratio is not limited, but the mass ratio of the component (A1) to the component (A2) is 50:50 to 99: 1, It is preferably in the range of 60:40 to 99: 1, 70:30 to 99: 1, 80:20 to 99: 1, or 85:15 to 99: 1. This is because if the proportion of the component (A1) is at least the lower limit of the above range, the resulting fluorosilicone rubber will have improved oil resistance and fuel oil resistance. This is because the adhesion between the obtained fluorosilicone rubber and the silicone rubber in the laminate after being exposed to a high-temperature environment is improved.
- Component (B) is a crosslinking agent for the fluorosilicone rubber composition, and is an organopolysiloxane having at least two silicon-bonded hydrogen atoms and at least one fluoroalkyl group in one molecule.
- the fluoroalkyl group in the component (B) includes a 3,3,3-trifluoropropyl group, a 4,4,4,3,3-pentafluorobutyl group, a 5,5,5,4,4,3, 3-heptafluoropentyl group, 6,6,6,5,5,4,4,3,3-nonafluorohexyl group, 7,7,7,6,6,5,5,4,4,3, Examples thereof include a fluoroalkyl group having 3 to 12 carbon atoms such as a 3-undecafluoroheptyl group, preferably a 3,3,3-trifluoropropyl group, a 4,4,4,3,3-pentafluoro group.
- the proportion of fluoroalkyl groups in component (B) is not limited, but is at least 5 mol%, at least 10 mol%, at least 15 mol% of the total silicon-bonded organic groups, while at most 70 mol%, at most 60 mol%, at most 50 mol%, or at most 40 mol%.
- the ratio of the fluoroalkyl group can be in any range obtained by combining the above upper and lower limits.
- the group bonded to the silicon atom other than the hydrogen atom and the fluoroalkyl group in the component (B) is a monovalent having 1 to 20 carbon atoms, preferably 1 to 8 carbon atoms, having no aliphatic unsaturated bond.
- a hydrocarbon group specifically, an alkyl group such as a methyl group, an ethyl group, a propyl group, and a butyl group; a cycloalkyl group such as a cyclohexyl group; an aryl group such as a phenyl group and a tolyl group; a benzyl group and a phenethyl group
- an aralkyl group such as a group, and preferably an alkyl group, particularly a methyl group.
- the molecular structure of the component (B) is not limited, and may be, for example, linear, partially branched linear, branched, network, or cyclic. A mixture of two or more of these molecular structures is exemplified. There may be.
- a component (B) a general formula: R 1 3 SiO (R 1 R f SiO) m (R 1 HSiO) n SiR 1 3 And an average unit formula: [HR 1 2 SiO 1/2] a (R f SiO 3/2) b
- the organopolysiloxane represented by these is illustrated.
- R 1 is the same or different and is a monovalent hydrocarbon group having 1 to 20 carbon atoms having no aliphatic unsaturated bond, and the same groups as described above are exemplified, preferably an alkyl group, particularly It is a methyl group.
- R f is the same or different fluoroalkyl group, and the same groups as described above are exemplified.
- m is an integer of 1 or more
- n is an integer of 2 or more
- the sum of m and n is an integer in the range of 5 to 100, and preferably the sum of m and n. Is an integer in the range of 10 to 50.
- the ratio of R f to the sum of R 1 and R f are at least 5 mole%, at least 10 mole%, at least 15 mol%, whereas, with 70 mole%, at most 60 mol%, Preferably it is at most 50 mol%, or at most 40 mol%.
- This ratio of R f can be in any range obtained by combining the above upper and lower limits.
- the ratio of R f to the sum of R 1 and R f are at least 5 mole%, at least 10 mole%, at least 15 mol%, whereas, with 70 mole%, at most 60 mol%, Preferably it is at most 50 mol%, or at most 40 mol%.
- This ratio of R f can be in any range obtained by combining the above upper and lower limits.
- the content of the component (B) is such that the silicon-bonded hydrogen atoms in the component exceed 1 mol per 1 mol of the total of the alkenyl groups in the component (A).
- the amount is preferably 1.1 mol or more, while the amount is 30 mol or less, 20 mol or less, 15 mol or less, or 10 mol or less.
- the content of the component (B) can be in any range obtained by combining the above upper and lower limits. This is because when the content of the component (B) is at least the lower limit of the above range, the adhesion between the obtained fluorosilicone rubber and the silicone rubber is good. This is because the adhesiveness between the obtained fluorosilicone rubber and the silicone rubber in the laminate after being exposed to water is improved.
- Component (C) is a hydrosilylation reaction catalyst for accelerating the curing of the fluorosilicone rubber composition.
- the component (C) include a platinum-based catalyst, a palladium-based catalyst, and a rhodium-based catalyst, and are preferably a platinum-based catalyst.
- platinum-based catalyst chloroplatinic acid, an alcohol solution of chloroplatinic acid, a carbonyl complex of platinum, an alkenylsiloxane complex of platinum, an olefin complex of platinum, an acrylic resin, a polycarbonate resin containing or dispersing these platinum-based catalysts,
- alkenylsiloxane complex of platinum is preferable because of its good compatibility with the component (A).
- examples of the alkenylsiloxane include 1,3-divinyltetramethyldisiloxane and 1,1,3,3-tetravinyldimethyldisiloxane.
- the content of the component (C) is the amount of a catalyst that promotes the curing of the fluorosilicone rubber composition.
- the catalyst metal in the present component relative to the fluorosilicone rubber composition is 0.1% by mass.
- the amount falls within the range of from 1,000 ppm to 1,000 ppm, the amount falls within the range of from 0.1 to 500 ppm, or the amount falls within the range of from 0.1 to 250 ppm. This is because if the content of the component (C) is at least the lower limit of the above range, the curing of the fluorosilicone rubber composition will be sufficiently accelerated, while if it is at most the upper limit of the above range, This is because the obtained fluorosilicone rubber hardly causes a problem such as coloring.
- the fluorosilicone rubber composition may contain silica fine powder in order to improve the mechanical properties of the obtained fluorosilicone rubber.
- silica fine powder include dry-process silica such as fumed silica and wet-process silica such as precipitated silica.
- Fine powdered silica that has been subjected to a hydrophobic treatment with an organosilicon compound such as siloxane can also be used.
- the BET specific surface area of the silica fine powder is not limited, but is preferably in the range of 50 m 2 / g to 400 m 2 / g, or in the range of 100 to 400 m 2 / g.
- the content of the silica fine powder is not limited, but is preferably not less than 10 parts by mass with respect to 100 parts by mass of the component (A) because the obtained fluorosilicone rubber has good mechanical properties. Since the moldability of the obtained fluorosilicone rubber composition is good, it is preferable that the amount is 100 parts by mass or less based on 100 parts by mass of component (A).
- the above fluorosilicone rubber composition may contain a reaction inhibitor for adjusting the curing speed.
- this reaction inhibitor include 2-methyl-3-butyn-2-ol, 3,5-dimethyl-1-hexyn-3-ol, 3-methyl-1-pentyn-3-ol, 2-phenyl-3 Alkyne alcohols such as -butyn-2-ol, 1-ethynyl-1-cyclohexanol, 2-ethynylisopropanol and 2-ethynylbutan-2-ol; trimethyl (3,5-dimethyl-1-hexyn-3-oxy) Silane, dimethylbis (3-methyl-1-butynoxy) silane, methylvinylbis (3-methyl-1-butyn-3-oxy) silane, and [(1,1-dimethyl-2-propynyl) oxy] trimethylsilane 2-isobutyl-1-buten-3-yne, 3,5-dimethyl-3-hexen-1-yne
- the content of the reaction inhibitor is not limited, but is preferably 5 parts by mass or less, or 3 parts by mass or less, based on 100 parts by mass of the total of the component (A) and the component (B). Is 0.01 parts by mass or more, or 0.1 parts by mass or more.
- the content of the reaction inhibitor can be in any range obtained by combining the above upper and lower limits.
- the fluorosilicone rubber composition may further contain various additives commonly used in the fluorosilicone rubber composition to the extent that the object of the present invention is not impaired.
- the compounding agent include fillers such as diatomaceous earth, quartz powder, calcium carbonate, etc .; thermal conductivity improvers such as alumina, zinc oxide, and boron nitride; flame retardant improvers such as magnesium hydroxide and aluminum hydroxide.
- Carbon blacks such as acetylene black, furnace black, and channel black; pigments such as titanium oxide and red iron oxide; heat-resistance improvers such as rare earth oxides, cerium silanolates, and cerium fatty acid salts; stearic acid, zinc stearate, and calcium stearate.
- Mold release agents such as fatty acids and metal salts thereof; and dispersants such as alkoxysilanes, diphenylsilanediols, carbon functional silanes, and diorganosiloxane oligomers having silanol groups at both ends of the molecular chain.
- the fluorosilicone rubber composition is cured.
- the molding method is not limited, and a method of molding a sheet of a fluorosilicone rubber composition prepared by a mold molding, compression molding, transfer molding, injection molding, extrusion molding, calender molding, or calender roll or the like around a mandrel, or the like. Is mentioned.
- the curing method is not limited, and a known curing method such as steam vulcanization or hot air vulcanization can be selected.
- the shape of the fluorosilicone rubber molded in this manner is not limited, and examples thereof include a sheet shape, a roll shape, a tube shape, and a lump shape.
- a fluorosilicone rubber layer is provided on the inner peripheral surface. However, when a hose having a silicone rubber layer on its outer peripheral surface is molded, it is preferable that the hose has a cylindrical shape.
- Step (2) a silicone rubber composition containing the following components (D) to (E) is laminated on the surface of the fluorosilicone rubber produced in the above step (1).
- (D) one molecule has at least one alkenyl group and does not have a fluoroalkyl group, or even if it has a fluoroalkyl group, its proportion is less than 20 mol% of all silicon-bonded organic groups;
- Component (D) is a main component of the silicone rubber composition, and has at least one alkenyl group in one molecule and has no fluoroalkyl group, or even if it has a fluoroalkyl group, Is an organopolysiloxane having less than 20 mol% of all organic groups bonded to silicon atoms.
- alkenyl group in the component (D) include an alkenyl group having 2 to 12 carbon atoms such as a vinyl group, an allyl group, a butenyl group, and a hexenyl group, and a vinyl group is preferable.
- Component (D) does not have a fluoroalkyl group or, if it does, has a proportion of less than 20 mol% of the total silicon-bonded organic groups.
- fluoroalkyl group which may be contained in the component (A2) include a 3,3,3-trifluoropropyl group, a 4,4,4,3,3-pentafluorobutyl group, a 5,5,5,4 , 4,3,3-heptafluoropentyl group, 6,6,6,5,5,4,4,3,3-nonafluorohexyl group, 7,7,7,6,6,5,5,4 Fluoroalkyl groups having 3 to 12 carbon atoms such as 4,4,3,3-undecafluoroheptyl group, and the like, and preferably 3,3,3-trifluoropropyl group, 4,4,4,3 , 3-pentafluorobutyl group, 5,5,5,4,4,3,3-heptafluoropentyl group.
- Examples of the group bonded to a silicon atom other than the alkenyl group and the fluoroalkyl group in the component (D) include a monovalent hydrocarbon group having 1 to 20 carbon atoms, preferably 1 to 8 carbon atoms. Include alkyl groups such as methyl group, ethyl group, propyl group and butyl group; cycloalkyl groups such as cyclohexyl group; aryl groups such as phenyl group and tolyl group; aralkyl groups such as benzyl group and phenethyl group; Preferably, it is an alkyl group, especially a methyl group.
- the molecular structure of the component (D) is not limited and includes, for example, a straight chain, a partially branched straight chain, and a branched chain.
- the viscosity of the component (D) is not limited, and is preferably a raw rubber at 25 ° C., particularly a raw rubber having a Williams plasticity of 100 to 800 at 25 ° C. specified in JIS @ K-6249, or a Williams plastic. Raw rubber with a degree of 100 to 400.
- Component (E) is an organic peroxide for curing the silicone rubber composition.
- a known organic peroxide for curing the silicone rubber composition can be used.
- Such components (E) include benzoyl peroxide, tertiary butyl perbenzoate, orthomethyl benzoyl peroxide, paramethyl benzoyl peroxide, ditertiary butyl peroxide, dicumyl peroxide, 1,1-bis (tersia Butylperoxy) 3,3,5-trimethylcyclohexane, 2,5-dimethyl-2,5-di (tert-butylperoxy) hexane, 2,5-dimethyl-2,5-di (tert-butyl) Peroxy) hexyne, and combinations of two or more of these.
- the content of the component (E) is not limited, but is preferably in the range of 0.1 to 10 parts by mass, 0.1 to 5 parts by mass, or 100 parts by mass of the component (D). It is in the range of 0.1 to 3 parts by mass. This is because when the content of the component (E) is equal to or higher than the lower limit of the above range, the obtained composition is sufficiently cured, while when the content is equal to or lower than the upper limit of the above range, the mechanical properties of the obtained silicone rubber are reduced. This is because the mechanical characteristics are good.
- the above silicone rubber composition may contain fine silica powder in order to improve the mechanical properties of the obtained silicone rubber.
- the silica fine powder include dry-process silica such as fumed silica and wet-process silica such as precipitated silica.
- Fine powdered silica that has been subjected to a hydrophobic treatment with an organosilicon compound such as siloxane can also be used.
- the BET specific surface area of the silica fine powder is not limited, but is preferably in the range of 50 m 2 / g to 400 m 2 / g, or in the range of 100 to 400 m 2 / g.
- the content of the silica fine powder is not limited, but is preferably not less than 10 parts by mass with respect to 100 parts by mass of the component (D) because the mechanical properties of the obtained silicone rubber are good. From the viewpoint of good moldability of the composition, the amount is preferably 100 parts by mass or less based on 100 parts by mass of the component (D).
- the silicone rubber composition is generally compounded with the silicone rubber as long as the object of the present invention is not impaired.
- fillers such as diatomaceous earth, quartz powder, calcium carbonate and the like; alumina, zinc oxide, nitrided Thermal conductivity improver such as boron; flame retardant improver such as magnesium hydroxide and aluminum hydroxide; carbon black such as acetylene black, furnace black and channel black; pigments such as titanium oxide and red iron oxide; rare earth oxides; Heat resistance improvers such as cerium silanolate and cerium fatty acid salts; mold release agents such as fatty acids such as stearic acid, zinc stearate and calcium stearate and metal salts thereof; alkoxysilane, diphenylsilanediol, and carbon functional silane Diorganosiloxane with silanol groups at both ends of molecular chain It may contain a dispersing agent such as oligomer. These compounding amounts are amounts that are usually compounded
- step (2) the silicone rubber composition is laminated on the surface of the fluorosilicone rubber produced in step (1).
- the lamination method is not limited, for example, a method of placing the silicone rubber composition on the fluorosilicone rubber in a compression molding machine, compression molding, placing the fluorosilicone rubber in a mold, and placing the silicone rubber composition in the mold.
- Injection method a method of laminating a silicone rubber composition on a fluorosilicone rubber sheet by calender molding, or a method of winding and molding a sheet of a silicone rubber composition prepared by a calender roll or the like around a molded article of fluorosilicone rubber are mentioned.
- the thickness of the silicone rubber composition laminated on the fluorosilicone rubber in this way is not limited.
- the shape of the laminated silicone rubber composition is not limited, and examples thereof include a sheet, a roll, a tube, and a lump, and the production method of the present invention has a fluorosilicone rubber layer on the inner peripheral surface.
- a hose having a silicone rubber layer on its outer peripheral surface is molded, it is preferable that the hose has a cylindrical shape.
- Step (3) Next, the silicone rubber composition laminated in the above step (2) is cured.
- the silicone rubber composition can be cured by a known method as in step (1). Also, after molding a laminate of fluorosilicone rubber and silicone rubber, it may be subjected to secondary vulcanization by heat treatment.
- the shape of the laminate of fluorosilicone rubber and silicone rubber obtained by the production method of the present invention is not limited.
- the laminate has a cylindrical shape, and the inner peripheral surface thereof is fluorosilicone.
- the laminate formed by the rubber layer 1 and the outer peripheral surface formed by the silicone rubber layer 2 is used as a hose having excellent heat resistance and fuel oil resistance, and as a turbocharger hose for connecting a turnbocharger and an intercooler. It is possible.
- such a hose may have a reinforcing yarn layer formed by winding a reinforcing yarn such as aramid fiber in the fluorosilicone rubber layer and / or the silicone rubber layer in order to improve the pressure resistance. Good.
- the shape is a sheet shown in FIG. 2 or FIG.
- the laminate on which the rubber layer 1 is formed can be used as a sheet having excellent heat resistance and fuel oil resistance, for example, a rubber sheet for a diaphragm.
- Another method of the present invention for producing a laminate of a fluorosilicone rubber and a silicone rubber is characterized by comprising at least the following steps (1 ') to (2').
- a fluorosilicone rubber composition containing the following components (A) to (C): (A) (A1) an organopolysiloxane having at least two alkenyl groups in one molecule and at least 20 mol% of all silicon-bonded organic groups being a fluoroalkyl group, or the components (A1) and ( A2) At least two alkenyl groups in one molecule and no fluoroalkyl group, or even if it has a fluoroalkyl group, its content is less than 20 mol% of all silicon-bonded organic groups.
- A) a silicone rubber composition comprising: (D) one molecule has at least one alkenyl group and does not have a fluoroalkyl group, or even if it has a fluoroalkyl group, its proportion is less than 20 mol% of all silicon-bonded organic groups; Is laminated with (E) an organic peroxide to prepare a laminate comprising a fluorosilicone rubber composition layer and a silicone rubber composition layer.
- the fluorosilicone rubber composition and the silicone rubber composition are as described above.
- the method of laminating the silicone rubber composition on the surface of the fluorosilicone rubber composition is not limited.
- a method of placing the silicone rubber composition on the fluorosilicone rubber composition in a compression molding machine and compression molding A method of placing the fluorosilicone rubber composition in the mold and injecting the silicone rubber composition into the mold; a method of placing the silicone rubber composition in the mold and injecting the fluorosilicone rubber composition into the mold;
- a method of laminating a fluorosilicone rubber composition and a silicone rubber composition by extrusion; a method of laminating a sheet of the fluorosilicone rubber composition and a sheet of the silicone rubber composition produced by calendering around a mandrel; Can be
- molding and lamination of the fluorosilicone rubber composition and the silicone rubber composition can be performed simultaneously.
- the thickness of the silicone rubber composition laminated on the fluorosilicone rubber composition in this way is not limited.
- the shape of the laminated silicone rubber composition is not limited, and examples thereof include a sheet, a roll, a tube, and a lump, and the production method of the present invention has a fluorosilicone rubber layer on the inner peripheral surface.
- a hose having a silicone rubber layer on its outer peripheral surface is molded, it is preferable that the hose has a cylindrical shape.
- Step (2 ') the fluorosilicone rubber composition and the silicone rubber composition laminated in the above step (1 ′) are cured.
- the curing method is not limited, and the fluorosilicone rubber composition and the silicone rubber composition can be cured by a known method such as steam vulcanization or hot air vulcanization. Also, after molding a laminate of fluorosilicone rubber and silicone rubber, it may be subjected to secondary vulcanization by heat treatment.
- the shape is not limited, for example, a cylindrical shape, the inner peripheral surface of which is formed by a fluorosilicone rubber layer, and the outer peripheral surface thereof Can be used as a hose having excellent heat resistance and fuel oil resistance, and as a turbocharger hose for connecting a turnbo charger and an intercooler.
- a hose may have a reinforcing yarn layer formed by winding a reinforcing yarn such as aramid fiber in the fluorosilicone rubber layer and / or the silicone rubber layer in order to improve the pressure resistance. Good.
- properties such as viscosity and plasticity are values at room temperature (25 ° C.) unless otherwise specified.
- the viscosity (Pa ⁇ s) is a value measured using a rotational viscometer according to JIS K7117-1
- the kinematic viscosity (mm 2 / s) is measured using an Ubbelohde viscometer according to JIS Z8803. It is a measured value
- the Williams plasticity is a value measured by a method specified in JIS K6249.
- Ratio of 3,3,3-trifluoropropyl group to all silicon-bonded organic groups about 49 mol%) 100 parts by mass, 30 parts by mass of fumed silica having a BET specific surface area of 250 m 2 / g, 1, 0.6 parts by mass of 3-divinyltetramethyldisilazane, 6.0 parts by mass of 1,3-di (3,3,3-trifluoropropyl) tetramethyldisilazane, 3.0 parts by mass of hexamethyldisilazane, and After 2.2 parts by mass of water was charged and mixed at 50 ° C. for 2 hours, the mixture was further mixed under reduced pressure at 120 ° C. for 2 hours to prepare a fluorosilicone rubber-based compound.
- fluorosilicone rubber base compound 100 parts by mass of the fluorosilicone rubber base compound is added with the formula: (CH 3 ) 3 SiO [CH 3 (C 4 F 9 C 2 H 4 ) SiO] 12 [CH 3 HSiO] 28 Si (CH 3 ) 3 2.0 parts by mass of a methylhydrogensiloxane-methyl (3,3,4,4,5,5,6,6,6-nonafluorohexyl) siloxane copolymer represented by the following formula, and 2,5-dimethyl-
- the fluorosilicone rubber composition (4) was prepared by uniformly mixing 0.55 parts by mass of 2,5-di (tert-butylperoxy) hexane.
- 4.2 parts by weight of fumed silica has a BET specific surface area of 300 meters 2 / g 6.7 parts by mass, a kinematic viscosity of 10 mm 2 / s, with both molecular chain terminals by introducing a dimethylsiloxane oligomer 8.9 mass parts blocked with hydroxy groups, were mixed for 2 hours at 50 ° C., further The mixture was mixed under reduced pressure at 120 ° C. for 2 hours to prepare a silicone rubber-based compound.
- 4.2 parts by weight of fumed silica has a BET specific surface area of 300 meters 2 / g 6.7 parts by mass, a kinematic viscosity of 10 mm 2 / s, with both molecular chain terminals by introducing a dimethylsiloxane oligomer 8.9 mass parts blocked with hydroxy groups, were mixed for 2 hours at 50 ° C., further The mixture was mixed under reduced pressure at 120 ° C. for 2 hours to prepare a silicone rubber-based compound.
- 4.2 parts by weight of fumed silica has a BET specific surface area of 300 meters 2 / g 6.7 parts by mass, a kinematic viscosity of 10 mm 2 / s, with both molecular chain terminals by introducing a dimethylsiloxane oligomer 8.9 mass parts blocked with hydroxy groups, were mixed for 2 hours at 50 ° C., further The mixture was mixed under reduced pressure at 120 ° C. for 2 hours to prepare a silicone rubber-based compound.
- 1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex of platinum was added to 100 parts by mass of the silicone rubber base compound, and a Williams plasticity was 165 and both ends of a molecular chain were substantially present.
- a rubber composition (7) was prepared.
- 4.2 parts by weight of fumed silica has a BET specific surface area of 300 meters 2 / g 6.7 parts by mass, a kinematic viscosity of 10 mm 2 / s, with both molecular chain terminals by introducing a dimethylsiloxane oligomer 8.9 mass parts blocked with hydroxy groups, were mixed for 2 hours at 50 ° C., further The mixture was mixed under reduced pressure at 120 ° C. for 2 hours to prepare a silicone rubber-based compound.
- 1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex of platinum was added to 100 parts by mass of the silicone rubber-based compound, and a Williams plasticity was 165 and both ends of the molecular chain were substantially present.
- a fluorosilicone rubber sheet having a thickness of 0.5 mm was produced by heating the fluorosilicone rubber compositions prepared in Reference Examples 1 to 3 at 120 ° C. for 10 minutes.
- the silicone rubber composition prepared in Reference Example 5 or Reference Example 6 was laminated to a thickness of 2.0 mm on one surface of the fluorosilicone rubber sheet.
- the fluorosilicone rubber sheet on which the silicone rubber composition layer was formed was subjected to heat press molding at 170 ° C. for 10 minutes to produce a laminated sheet of fluorosilicone rubber and silicone rubber.
- the adhesion between the fluorosilicone rubber layer and the silicone rubber layer in this laminated sheet was evaluated, and the results are shown in Table 1.
- Example 5 First, the fluorosilicone rubber composition (1) prepared in Reference Example 1 was formed into a sheet having a thickness of 0.5 mm, and then the silicone rubber composition prepared in Reference Example 5 was formed on the fluorosilicone rubber composition sheet. The product (5) was laminated to a thickness of 2.0 mm. Thereafter, the laminate was subjected to heat press molding at 170 ° C. for 10 minutes to produce a laminate sheet of fluorosilicone rubber and silicone rubber. The adhesion between the fluorosilicone rubber layer and the silicone rubber layer in this laminated sheet was evaluated, and the results are shown in Table 1.
- a fluorosilicone rubber sheet having a thickness of 0.5 mm was prepared by heating the fluorosilicone rubber composition (4) prepared in Reference Example 4 at 170 ° C. for 10 minutes.
- the silicone rubber composition (7) prepared in Reference Example 7 was laminated on one side of the fluorosilicone rubber sheet to a thickness of 2.0 mm.
- a silicone rubber composition layer was formed, and the fluorosilicone rubber sheet was subjected to heat press molding at 170 ° C. for 10 minutes to produce a laminated sheet of fluorosilicone rubber and silicone rubber.
- the adhesion between the fluorosilicone rubber layer and the silicone rubber layer in this laminated sheet was evaluated, and the results are shown in Table 1.
- a fluorosilicone rubber sheet having a thickness of 0.5 mm was prepared by heating the fluorosilicone rubber composition (4) prepared in Reference Example 4 at 120 ° C. for 10 minutes.
- the silicone rubber composition (8) prepared in Reference Example 8 was laminated on one surface of the fluorosilicone rubber sheet to a thickness of 2.0 mm.
- a silicone rubber composition layer was formed, and the fluorosilicone rubber sheet was subjected to heat press molding at 120 ° C. for 10 minutes to produce a laminated sheet of fluorosilicone rubber and silicone rubber.
- the adhesion between the fluorosilicone rubber layer and the silicone rubber layer in this laminated sheet was evaluated, and the results are shown in Table 1.
- the laminate of the fluorosilicone rubber and the silicone rubber produced by the production method of the present invention has excellent adhesion between the fluorosilicone rubber layer and the silicone rubber layer. It is suitable as a component for equipment, particularly as a material for turbo hoses for automobiles.
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Abstract
Description
(1)下記成分(A)~(C)を含むフロロシリコーンゴム組成物を硬化する工程;
(A)(A1)一分子中に、少なくとも2個のアルケニル基を有し、ケイ素原子結合全有機基の少なくとも20モル%がフロロアルキル基であるオルガノポリシロキサン、または前記成分(A1)と(A2)一分子中に、少なくとも2個のアルケニル基を有し、フロロアルキル基を有さないか、またはフロロアルキル基を有するとしても、その割合がケイ素原子結合全有機基の20モル%未満であるオルガノポリシロキサンとの混合物 100質量部、
(B)一分子中に、少なくとも2個のケイ素原子結合水素原子および少なくとも1個のフロロアルキル基を有するオルガノポリシロキサン{成分(A)中のアルケニル基1モルに対して、本成分中のケイ素原子結合水素原子が1モルを超える量}、および
(C)触媒量のヒドロシリル化反応用触媒
(2)上記工程(1)で作製したフロロシリコーンゴムの表面に、下記成分(D)~(E)を含むシリコーンゴム組成物を積層する工程;
(D)一分子中に、少なくとも1個のアルケニル基を有し、フロロアルキル基を有さないか、またはフロロアルキル基を有するとしても、その割合がケイ素原子結合全有機基の20モル%未満であるオルガノポリシロキサン 100質量部、および
(E)有機過酸化物 0.1~10質量部
(3)上記工程(2)で積層されたシリコーンゴム組成物を硬化する工程
(1’)下記成分(A)~(C)を含むフロロシリコーンゴム組成物:
(A)(A1)一分子中に、少なくとも2個のアルケニル基を有し、ケイ素原子結合全有機基の少なくとも20モル%がフロロアルキル基であるオルガノポリシロキサン、または前記成分(A1)と(A2)一分子中に、少なくとも2個のアルケニル基を有し、フロロアルキル基を有さないか、またはフロロアルキル基を有するとしても、その割合がケイ素原子結合全有機基の20モル%未満であるオルガノポリシロキサンとの混合物 100質量部、
(B)一分子中に、少なくとも2個のケイ素原子結合水素原子および少なくとも1個のフロロアルキル基を有するオルガノポリシロキサン{成分(A)中のアルケニル基1モルに対して、本成分中のケイ素原子結合水素原子が1モルを超える量}、および
(C)触媒量のヒドロシリル化反応用触媒
と、下記成分(D)~(E)を含むシリコーンゴム組成物:
(D)一分子中に、少なくとも1個のアルケニル基を有し、フロロアルキル基を有さないか、またはフロロアルキル基を有するとしても、その割合がケイ素原子結合全有機基の20モル%未満であるオルガノポリシロキサン 100質量部、および
(E)有機過酸化物 0.1~10質量部
を積層して、フロロシリコーンゴム組成物層とシリコーンゴム組成物層からなる積層体を作製する工程、
(2’)上記工程(1’)で作製した積層体のフロロシリコーンゴム組成物層とシリコーンゴム組成物層を硬化する工程
初めに、下記成分(A)~(C)を含むフロロシリコーンゴム組成物を硬化する。
(A)(A1)一分子中に、少なくとも2個のアルケニル基を有し、ケイ素原子結合全有機基の少なくとも20モル%がフロロアルキル基であるオルガノポリシロキサン、または前記成分(A1)と(A2)一分子中に、少なくとも2個のアルケニル基を有し、フロロアルキル基を有さないか、またはフロロアルキル基を有するとしても、その割合がケイ素原子結合全有機基の20モル%未満であるオルガノポリシロキサンとの混合物、
(B)一分子中に、少なくとも2個のケイ素原子結合水素原子および少なくとも1個のフロロアルキル基を有するオルガノポリシロキサン、および
(C)ヒドロシリル化反応用触媒
R1 3SiO(R1RfSiO)m(R1HSiO)nSiR1 3
で表されるオルガノポリシロキサン、および平均単位式:
[HR1 2SiO1/2]a(RfSiO3/2)b
で表されるオルガノポリシロキサンが例示される。
次に、上記工程(1)で作製したフロロシリコーンゴムの表面に、下記成分(D)~(E)を含むシリコーンゴム組成物を積層する。
(D)一分子中に、少なくとも1個のアルケニル基を有し、フロロアルキル基を有さないか、またはフロロアルキル基を有するとしても、その割合がケイ素原子結合全有機基の20モル%未満であるオルガノポリシロキサン、および
(E)有機過酸化物
次に、上記工程(2)で積層されたシリコーンゴム組成物を硬化する。工程(3)において、上記工程(1)と同様に周知の方法により、シリコーンゴム組成物を硬化させることができる。また、フロロシリコーンゴムとシリコーンゴムとの積層体を成型後、さらに、これを加熱処理することにより、二次加硫を行ってもよい。
初めに、下記成分(A)~(C)を含むフロロシリコーンゴム組成物:
(A)(A1)一分子中に、少なくとも2個のアルケニル基を有し、ケイ素原子結合全有機基の少なくとも20モル%がフロロアルキル基であるオルガノポリシロキサン、または前記成分(A1)と(A2)一分子中に、少なくとも2個のアルケニル基を有し、フロロアルキル基を有さないか、またはフロロアルキル基を有するとしても、その含有量がケイ素原子結合全有機基の20モル%未満であるオルガノポリシロキサンとの混合物、
(B)一分子中に、少なくとも2個のケイ素原子結合水素原子および少なくとも1個のフロロアルキル基を有するオルガノポリシロキサン、および
(C)ヒドロシリル化反応用触媒
と、下記成分(D)~(E)を含むシリコーンゴム組成物:
(D)一分子中に、少なくとも1個のアルケニル基を有し、フロロアルキル基を有さないか、またはフロロアルキル基を有するとしても、その割合がケイ素原子結合全有機基の20モル%未満であるオルガノポリシロキサン、および
(E)有機過酸化物
とを積層して、フロロシリコーンゴム組成物層とシリコーンゴム組成物層からなる積層体を作製する。
次に、上記工程(1’)で積層されたフロロシリコーンゴム組成物とシリコーンゴム組成物を硬化する。その硬化方法も限定されず、スチーム加硫、熱風加硫等の周知の方法により、フロロシリコーンゴム組成物とシリコーンゴム組成物を硬化させることができる。また、フロロシリコーンゴムとシリコーンゴムとの積層体を成型後、さらに、これを加熱処理することにより、二次加硫を行ってもよい。
ニーダーミキサーに、ウイリアムス可塑度が300であり、分子鎖両末端がヒドロキシ基で封鎖されたメチルビニルシロキサン・メチル(3,3,3-トリフロロプロピル)シロキサン共重合体(ビニル基の含有量=0.01質量%;ケイ素原子結合全有機基に対する3,3,3-トリフロロプロピル基の割合=約50モル%) 100質量部、ウイリアムス可塑度が165であり、分子鎖両末端が実質的にジメチルビニルシロキシ基で封鎖され、その一部がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=0.07質量%) 5.6質量部、ウイリアムス可塑度が160であり、分子鎖両末端がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=1.4質量%) 5.6質量部、BET比表面積が130m2/gであるヒュームドシリカ 41質量部、動粘度が30mm2/sであり、分子鎖両末端がヒドロキシ基で封鎖されたメチル(3,3,3-トリフロロプロピル)シロキサンオリゴマー 5.6質量部を投入して、50℃で2時間混合した後、さらに、減圧下、120℃で2時間混合して、フロロシリコーンゴムベースコンパウンドを調製した。
(CH3)3SiO[CH3(C4F9C2H4)SiO]12[CH3HSiO]28Si(CH3)3
で表されるメチルハイドロジェンシロキサン・メチル(3,3,4,4,5,5,6,6,6-ノナフルオロヘキシル)シロキサン共重合体 4.6質量部(フロロシリコーンゴムベースコンパウンドに含まれるビニル基の合計1モルに対して、ケイ素原子結合水素原子が5.5モルとなる量)、白金の1,3-ジビニル-1,1,3,3-テトラメチルジシロキサン錯体を、ウイリアムス可塑度が165であり、分子鎖両末端が実質的にジメチルビニルシロキシ基で封鎖され、その一部がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=0.07質量%)で希釈したヒドロシリル化反応用触媒(白金含有量=0.02質量%) 5.8質量部、および1-エチニル-1-シクロヘキサノール 0.03質量部を均一に混合して、フロロシリコーンゴム組成物(1)を調製した。
ニーダーミキサーに、ウイリアムス可塑度が300であり、分子鎖両末端がヒドロキシ基で封鎖されたメチルビニルシロキサン・メチル(3,3,3-トリフロロプロピル)シロキサン共重合体(ビニル基の含有量=0.01質量%;ケイ素原子結合全有機基に対する3,3,3-トリフロロプロピル基の割合=約50モル%) 100質量部、ウイリアムス可塑度が165であり、分子鎖両末端が実質的にジメチルビニルシロキシ基で封鎖され、その一部がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=0.07質量%) 5.6質量部、ウイリアムス可塑度が160であり、分子鎖両末端がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=1.4質量%) 5.6質量部、BET比表面積が130m2/gであるヒュームドシリカ 41質量部、動粘度が30mm2/sであり、分子鎖両末端がヒドロキシ基で封鎖されたメチル(3,3,3-トリフロロプロピル)シロキサンオリゴマー 5.6質量部を投入して、50℃で2時間混合した後、さらに、減圧下、120℃で2時間混合して、フロロシリコーンゴムベースコンパウンドを調製した。
[H(CH3)2SiO1/2]0.65(CF3C2H4SiO3/2)0.35
で表されるオルガノポリシロキサン 3.9質量部(フロロシリコーンゴムベースコンパウンド中の全ビニル基1モルに対して、ケイ素原子結合水素原子が5.5モルとなる量)、および白金の1,3-ジビニル-1,1,3,3-テトラメチルジシロキサン錯体を、ウイリアムス可塑度が165であり、分子鎖両末端が実質的にジメチルビニルシロキシ基で封鎖され、その一部がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=0.07質量%)で希釈したヒドロシリル化反応用触媒(白金含有量=0.02質量%) 1質量部を均一に混合して、フロロシリコーンゴム組成物(2)を調製した。
ロスミキサーに、粘度が40Pa・sであり、分子鎖両末端がジメチルビニルシロキシ基で封鎖されたメチル(3,3,3-トリフロロプロピル)ポリシロキサン(ビニル基の含有量=0.15質量%;ケイ素原子結合全有機基に対する3,3,3-トリフロロプロピル基の割合=約49モル%) 100質量部、BET比表面積が250m2/gであるヒュームドシリカ 30質量部、1,3-ジビニルテトラメチルジシラザン 0.6質量部、1,3-ジ(3,3,3-トリフロロプロピル)テトラメチルジシラザン 6.0質量部、ヘキサメチルジシラザン 3.0質量部、および水 2.2質量部を投入して、50℃で2時間混合した後、さらに、減圧下、120℃で2時間混合して、フロロシリコーンゴムベースコンパウンドを調製した。
[H(CH3)2SiO1/2]0.65(CF3C2H4SiO3/2)0.35
で表されるオルガノポリシロキサン 2.8質量部(フロロシリコーンゴムベースコンパウンド中の全ビニル基1モルに対して、ケイ素原子結合水素原子が1.2モルとなる量)、および白金の1,3-ジビニル-1,1,3,3-テトラメチルジシロキサン錯体を熱可塑性シリコーン樹脂でマイクロカプセル化したヒドロシリル化反応用触媒(白金含有量=0.02質量%) 0.3質量部を均一に混合して、フロロシリコーンゴム組成物(3)を調製した。
ニーダーミキサーに、ウイリアムス可塑度が300であり、分子鎖両末端がヒドロキシ基で封鎖されたメチルビニルシロキサン・メチル(3,3,3-トリフロロプロピル)シロキサン共重合体(ビニル基の含有量=0.01質量%;ケイ素原子結合全有機基に対する3,3,3-トリフロロプロピル基の割合=約50モル%) 100質量部、ウイリアムス可塑度が165であり、分子鎖両末端が実質的にジメチルビニルシロキシ基で封鎖され、その一部がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=0.07質量%) 5.6質量部、ウイリアムス可塑度が160であり、分子鎖両末端がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=1.4質量%) 5.6質量部、BET比表面積が130m2/gであるヒュームドシリカ 41質量部、動粘度が30mm2/sであり、分子鎖両末端がヒドロキシ基で封鎖されたメチル(3,3,3-トリフロロプロピル)シロキサンオリゴマー 5.6質量部を投入して、50℃で2時間混合した後、さらに、減圧下、120℃で2時間混練して、フロロシリコーンゴムベースコンパウンドを調製した。
(CH3)3SiO[CH3(C4F9C2H4)SiO]12[CH3HSiO]28Si(CH3)3
で表されるメチルハイドロジェンシロキサン・メチル(3,3,4,4,5,5,6,6,6-ノナフルオロヘキシル)シロキサン共重合体 2.0質量部、および2,5-ジメチル-2,5-ジ(ターシャルブチルパーオキシ)ヘキサン 0.55質量部を均一に混合して、フロロシリコーンゴム組成物(4)を調製した。
ニーダーミキサーに、ウイリアムス可塑度が165であり、分子鎖両末端が実質的にジメチルビニルシロキシ基で封鎖され、その一部がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=0.07質量%) 30.9質量部、ウイリアムス可塑度が160であり、分子鎖両末端が実質的にジメチルビニルシロキシ基で封鎖され、その一部がヒドロキシ基で封鎖されたジメチルポリシロキサン(ビニル基の含有量=0.01質量%) 29.2質量部、ウイリアムス可塑度が160であり、分子鎖両末端がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=1.4質量%) 4.2質量部、BET比表面積が300m2/gであるヒュームドシリカ 26.7質量部、動粘度が10mm2/sであり、分子鎖両末端がヒドロキシ基で封鎖されたジメチルシロキサンオリゴマー 8.9質量部を投入して、50℃で2時間混合した後、さらに、減圧下、120℃で2時間混合して、シリコーンゴムベースコンパウンドを調製した。
ニーダーミキサーに、ウイリアムス可塑度が165であり、分子鎖両末端が実質的にジメチルビニルシロキシ基で封鎖され、その一部がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=0.07質量%) 30.9質量部、ウイリアムス可塑度が160であり、分子鎖両末端が実質的にジメチルビニルシロキシ基で封鎖され、その一部がヒドロキシ基で封鎖されたジメチルポリシロキサン(ビニル基の含有量=0.01質量%) 29.2質量部、ウイリアムス可塑度が160であり、分子鎖両末端がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=1.4質量%) 4.2質量部、BET比表面積が300m2/gであるヒュームドシリカ 26.7質量部、動粘度が10mm2/sであり、分子鎖両末端がヒドロキシ基で封鎖されたジメチルシロキサンオリゴマー 8.9質量部を投入して、50℃で2時間混合した後、さらに、減圧下、120℃で2時間混合して、シリコーンゴムベースコンパウンドを調製した。
ニーダーミキサーに、ウイリアムス可塑度が165であり、分子鎖両末端が実質的にジメチルビニルシロキシ基で封鎖され、その一部がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=0.07質量%) 30.9質量部、ウイリアムス可塑度が160であり、分子鎖両末端が実質的にジメチルビニルシロキシ基で封鎖され、その一部がヒドロキシ基で封鎖されたジメチルポリシロキサン(ビニル基の含有量=0.01質量%) 29.2質量部、ウイリアムス可塑度が160であり、分子鎖両末端がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=1.4質量%) 4.2質量部、BET比表面積が300m2/gであるヒュームドシリカ 26.7質量部、動粘度が10mm2/sであり、分子鎖両末端がヒドロキシ基で封鎖されたジメチルシロキサンオリゴマー 8.9質量部を投入して、50℃で2時間混合した後、さらに、減圧下、120℃で2時間混合して、シリコーンゴムベースコンパウンドを調製した。
ニーダーミキサーに、ウイリアムス可塑度が165であり、分子鎖両末端が実質的にジメチルビニルシロキシ基で封鎖され、その一部がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=0.07質量%) 30.9質量部、ウイリアムス可塑度が160であり、分子鎖両末端が実質的にジメチルビニルシロキシ基で封鎖され、その一部がヒドロキシ基で封鎖されたジメチルポリシロキサン(ビニル基の含有量=0.01質量%) 29.2質量部、ウイリアムス可塑度が160であり、分子鎖両末端がヒドロキシ基で封鎖されたジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基の含有量=1.4質量%) 4.2質量部、BET比表面積が300m2/gであるヒュームドシリカ 26.7質量部、動粘度が10mm2/sであり、分子鎖両末端がヒドロキシ基で封鎖されたジメチルシロキサンオリゴマー 8.9質量部を投入して、50℃で2時間混合した後、さらに、減圧下、120℃で2時間混合して、シリコーンゴムベースコンパウンドを調製した。
はじめに、参考例1~3で調製したフロロシリコーンゴム組成物を120℃、10分間加熱することにより、厚さ0.5mmのフロロシリコーンゴムシートを作製した。次に、このフロロシリコーンゴムシートの片面に、参考例5または参考例6で調製したシリコーンゴム組成物を厚さ2.0mmに積層した。その後、シリコーンゴム組成物層を形成したフロロシリコーンゴムシートを170℃、10分間ヒートプレス成形することにより、フロロシリコーンゴムとシリコーンゴムとの積層シートを作製した。この積層シートにおけるフロロシリコーンゴム層とシリコーンゴム層との接着性を評価し、その結果を表1に示した。
はじめに、参考例1で調製したフロロシリコーンゴム組成物(1)を厚さ0.5mmのシート状に成形し、次いで、このフロロシリコーンゴム組成物シート上に、参考例5で調製したシリコーンゴム組成物(5)を厚さ2.0mmに積層した。その後、この積層体を170℃、10分間ヒートプレス成形することにより、フロロシリコーンゴムとシリコーンゴムとの積層シートを作製した。この積層シートにおけるフロロシリコーンゴム層とシリコーンゴム層との接着性を評価し、その結果を表1に示した。
はじめに、参考例4で調製したフロロシリコーンゴム組成物(4)を厚さ0.5mmのシート状に成形し、次いで、このフロロシリコーンゴム組成物シート上に、参考例7で調製したシリコーンゴム組成物(7)を厚さ2.0mmに積層した。その後、この積層体を170℃、10分間ヒートプレス成形することにより、フロロシリコーンゴムとシリコーンゴムとの積層シートを作製した。この積層シートにおけるフロロシリコーンゴム層とシリコーンゴム層との接着性を評価し、その結果を表1に示した。
はじめに、参考例4で調製したフロロシリコーンゴム組成物(4)を170℃、10分間加熱することにより、厚さ0.5mmのフロロシリコーンゴムシートを作製した。次に、このフロロシリコーンゴムシートの片面に、参考例7で調製したシリコーンゴム組成物(7)を厚さ2.0mmに積層した。その後、シリコーンゴム組成物層を形成しフロロシリコーンゴムシートを170℃、10分間ヒートプレス成形することにより、フロロシリコーンゴムとシリコーンゴムとの積層シートを作製した。この積層シートにおけるフロロシリコーンゴム層とシリコーンゴム層との接着性を評価し、その結果を表1に示した。
はじめに、参考例4で調製したフロロシリコーンゴム組成物(4)を120℃、10分間加熱することにより、厚さ0.5mmのフロロシリコーンゴムシートを作製した。次に、このフロロシリコーンゴムシートの片面に、参考例8で調製したシリコーンゴム組成物(8)を厚さ2.0mmに積層した。その後、シリコーンゴム組成物層を形成しフロロシリコーンゴムシートを120℃、10分間ヒートプレス成形することにより、フロロシリコーンゴムとシリコーンゴムとの積層シートを作製した。この積層シートにおけるフロロシリコーンゴム層とシリコーンゴム層との接着性を評価し、その結果を表1に示した。
上記のようにして調製した積層体を室温で1日放置した後、幅25mmのリボン状に切断し、フロロシリコーンゴム層とシリコーンゴム層との初期接着性をT型剥離によって評価した。また、上記のようにして調製した積層体をさらに200℃のオーブン中に7日間放置した後、同様にして熱老化後の接着性をT型剥離によって評価した。フロロシリコーンゴム層とシリコーンゴム層とが強固に接着し、剥離の際、凝集破壊したものを“◎”、フロロシリコーンゴム層とシリコーンゴム層とが接着し、剥離の際、凝集破壊が認められたものの、一部で界面剥離が認められたものを“○”、フロロシリコーンゴム層とシリコーンゴム層とが密着し、剥離の際、強い剥離抵抗が認められたものの完全に界面剥離したものを“△”、T型剥離試験中、フロロシリコーンゴム層とシリコーンゴム層とが抵抗なく界面剥離して接着性が評価できなかった場合を“×”とした。
2 シリコーンゴム層
Claims (6)
- 下記工程(1)~(3)から少なくともなる、フロロシリコーンゴムとシリコーンゴムとの積層体の製造方法。
(1)下記成分(A)~(C)を含むフロロシリコーンゴム組成物を硬化する工程;
(A)(A1)一分子中に、少なくとも2個のアルケニル基を有し、ケイ素原子結合全有機基の少なくとも20モル%がフロロアルキル基であるオルガノポリシロキサン、または前記成分(A1)と(A2)一分子中に、少なくとも2個のアルケニル基を有し、フロロアルキル基を有さないか、またはフロロアルキル基を有するとしても、その割合がケイ素原子結合全有機基の20モル%未満であるオルガノポリシロキサンとの混合物 100質量部、
(B)一分子中に、少なくとも2個のケイ素原子結合水素原子および少なくとも1個のフロロアルキル基を有するオルガノポリシロキサン{成分(A)中のアルケニル基1モルに対して、本成分中のケイ素原子結合水素原子が1モルを超える量}、および
(C)触媒量のヒドロシリル化反応用触媒
(2)上記工程(1)で作製したフロロシリコーンゴムの表面に、下記成分(D)~(E)を含むシリコーンゴム組成物を積層する工程;
(D)一分子中に、少なくとも1個のアルケニル基を有し、フロロアルキル基を有さないか、またはフロロアルキル基を有するとしても、その割合がケイ素原子結合全有機基の20モル%未満であるオルガノポリシロキサン 100質量部、および
(E)有機過酸化物 0.1~10質量部
(3)上記工程(2)で積層されたシリコーンゴム組成物を硬化する工程 - フロロシリコーンゴム組成物が、さらに、シリカ微粉末を含有することを特徴とする、請求項1に記載の積層体の製造方法。
- フロロシリコーンゴム組成物が、さらに、反応抑制剤を含有することを特徴とする、請求項1に記載の積層体の製造方法。
- 下記工程(1’)~(2’)から少なくともなる、フロロシリコーンゴムとシリコーンゴムとの積層体の製造方法。
(1’)下記成分(A)~(C)を含むフロロシリコーンゴム組成物:
(A)(A1)一分子中に、少なくとも2個のアルケニル基を有し、ケイ素原子結合全有機基の少なくとも20モル%がフロロアルキル基であるオルガノポリシロキサン、または前記成分(A1)と(A2)一分子中に、少なくとも2個のアルケニル基を有し、フロロアルキル基を有さないか、またはフロロアルキル基を有するとしても、その割合がケイ素原子結合全有機基の20モル%未満であるオルガノポリシロキサンとの混合物 100質量部、
(B)一分子中に、少なくとも2個のケイ素原子結合水素原子および少なくとも1個のフロロアルキル基を有するオルガノポリシロキサン{成分(A)中のアルケニル基1モルに対して、本成分中のケイ素原子結合水素原子が1モルを超える量}、および
(C)触媒量のヒドロシリル化反応用触媒
と、下記成分(D)~(E)を含むシリコーンゴム組成物:
(D)一分子中に、少なくとも1個のアルケニル基を有し、フロロアルキル基を有さないか、またはフロロアルキル基を有するとしても、その割合がケイ素原子結合全有機基の20モル%未満であるオルガノポリシロキサン 100質量部、および
(E)有機過酸化物 0.1~10質量部
とを積層して、フロロシリコーンゴム組成物層とシリコーンゴム組成物層からなる積層体を作製する工程、
(2’)上記工程(1’)で作製した積層体のフロロシリコーンゴム組成物層とシリコーンゴム組成物層を硬化する工程 - フロロシリコーンゴム組成物が、さらに、シリカ微粉末を含有することを特徴とする、請求項4に記載の積層体の製造方法。
- フロロシリコーンゴム組成物が、さらに、反応抑制剤を含有することを特徴とする、請求項4に記載の積層体の製造方法。
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