JP6632001B2 - スポンジ形成性シリコーンゴム組成物およびシリコーンゴムスポンジ - Google Patents
スポンジ形成性シリコーンゴム組成物およびシリコーンゴムスポンジ Download PDFInfo
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- JP6632001B2 JP6632001B2 JP2017542193A JP2017542193A JP6632001B2 JP 6632001 B2 JP6632001 B2 JP 6632001B2 JP 2017542193 A JP2017542193 A JP 2017542193A JP 2017542193 A JP2017542193 A JP 2017542193A JP 6632001 B2 JP6632001 B2 JP 6632001B2
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- silicone rubber
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- sponge
- parts
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- 239000000203 mixture Substances 0.000 title claims description 75
- 229920002379 silicone rubber Polymers 0.000 title claims description 75
- 239000004945 silicone rubber Substances 0.000 title claims description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 23
- 238000006459 hydrosilylation reaction Methods 0.000 claims description 18
- 125000003342 alkenyl group Chemical group 0.000 claims description 15
- 239000001913 cellulose Substances 0.000 claims description 12
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- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 12
- 239000002121 nanofiber Substances 0.000 claims description 12
- 238000004132 cross linking Methods 0.000 claims description 11
- 239000003995 emulsifying agent Substances 0.000 claims description 9
- 239000000377 silicon dioxide Substances 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 239000007809 chemical reaction catalyst Substances 0.000 claims description 3
- 239000002683 reaction inhibitor Substances 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- -1 isobutenyl Chemical group 0.000 description 68
- 241000243142 Porifera Species 0.000 description 38
- 229920001577 copolymer Polymers 0.000 description 13
- 235000014113 dietary fatty acids Nutrition 0.000 description 12
- 239000000194 fatty acid Substances 0.000 description 12
- 229930195729 fatty acid Natural products 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
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- 238000002156 mixing Methods 0.000 description 10
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 8
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- 239000004927 clay Substances 0.000 description 6
- 229910052570 clay Inorganic materials 0.000 description 6
- 239000004205 dimethyl polysiloxane Substances 0.000 description 6
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 6
- 229910052731 fluorine Inorganic materials 0.000 description 6
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- 238000000465 moulding Methods 0.000 description 6
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- 229910052710 silicon Inorganic materials 0.000 description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
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- 230000003068 static effect Effects 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
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- 239000000945 filler Substances 0.000 description 4
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- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002736 nonionic surfactant Substances 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 125000003944 tolyl group Chemical group 0.000 description 4
- 239000004594 Masterbatch (MB) Substances 0.000 description 3
- 239000006231 channel black Substances 0.000 description 3
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- 125000004122 cyclic group Chemical group 0.000 description 3
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- 229910052751 metal Inorganic materials 0.000 description 3
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- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229910004283 SiO 4 Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 125000005388 dimethylhydrogensiloxy group Chemical group 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
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- 238000007542 hardness measurement Methods 0.000 description 2
- 150000002430 hydrocarbons Chemical group 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 150000001282 organosilanes Chemical class 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000012763 reinforcing filler Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 239000011787 zinc oxide Substances 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
- GRGVQLWQXHFRHO-AATRIKPKSA-N (e)-3-methylpent-3-en-1-yne Chemical compound C\C=C(/C)C#C GRGVQLWQXHFRHO-AATRIKPKSA-N 0.000 description 1
- ZPFAVCIQZKRBGF-UHFFFAOYSA-N 1,3,2-dioxathiolane 2,2-dioxide Chemical class O=S1(=O)OCCO1 ZPFAVCIQZKRBGF-UHFFFAOYSA-N 0.000 description 1
- QYLFHLNFIHBCPR-UHFFFAOYSA-N 1-ethynylcyclohexan-1-ol Chemical compound C#CC1(O)CCCCC1 QYLFHLNFIHBCPR-UHFFFAOYSA-N 0.000 description 1
- 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 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
- KSLSOBUAIFEGLT-UHFFFAOYSA-N 2-phenylbut-3-yn-2-ol Chemical compound C#CC(O)(C)C1=CC=CC=C1 KSLSOBUAIFEGLT-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 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
- UTCPULRZWUCMTL-UHFFFAOYSA-N C(=C)[Si](OC(C#CC)(C)C)(OC(C#CC)(C)C)OC(C#CC)(C)C Chemical compound C(=C)[Si](OC(C#CC)(C)C)(OC(C#CC)(C)C)OC(C#CC)(C)C UTCPULRZWUCMTL-UHFFFAOYSA-N 0.000 description 1
- OHCYWAKZZKJLAM-UHFFFAOYSA-N C[Si](OC(C#CC)(C)C)(OC(C#CC)(C)C)OC(C#CC)(C)C Chemical compound C[Si](OC(C#CC)(C)C)(OC(C#CC)(C)C)OC(C#CC)(C)C OHCYWAKZZKJLAM-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 239000004944 Liquid Silicone Rubber Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- FMRLDPWIRHBCCC-UHFFFAOYSA-L Zinc carbonate Chemical compound [Zn+2].[O-]C([O-])=O FMRLDPWIRHBCCC-UHFFFAOYSA-L 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001345 alkine derivatives Chemical class 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000005037 alkyl phenyl group Chemical group 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
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- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
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- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
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- 125000004369 butenyl group Chemical group C(=CCC)* 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- 229910052801 chlorine Inorganic materials 0.000 description 1
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- 239000003431 cross linking reagent Substances 0.000 description 1
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 125000000640 cyclooctyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- DDJSWKLBKSLAAZ-UHFFFAOYSA-N cyclotetrasiloxane Chemical compound O1[SiH2]O[SiH2]O[SiH2]O[SiH2]1 DDJSWKLBKSLAAZ-UHFFFAOYSA-N 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical class OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
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- 230000001804 emulsifying effect Effects 0.000 description 1
- 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 1
- 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 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- 125000005843 halogen group Chemical group 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000006038 hexenyl group Chemical group 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- NYMPGSQKHIOWIO-UHFFFAOYSA-N hydroxy(diphenyl)silicon Chemical compound C=1C=CC=CC=1[Si](O)C1=CC=CC=C1 NYMPGSQKHIOWIO-UHFFFAOYSA-N 0.000 description 1
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 125000000555 isopropenyl group Chemical group [H]\C([H])=C(\*)C([H])([H])[H] 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
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- 125000004365 octenyl group Chemical group C(=CCCCCCC)* 0.000 description 1
- 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 1
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- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
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- 125000002255 pentenyl group Chemical group C(=CCCC)* 0.000 description 1
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- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- 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
- QBERHIJABFXGRZ-UHFFFAOYSA-M rhodium;triphenylphosphane;chloride Chemical compound [Cl-].[Rh].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 QBERHIJABFXGRZ-UHFFFAOYSA-M 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
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- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
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- 125000005023 xylyl group Chemical group 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
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- 239000002888 zwitterionic surfactant Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Description
(A)一分子中に少なくとも2個のケイ素原子結合アルケニル基を有するポリオルガノシロキサン 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を有するポリオルガノシロキサン{(A)成分中のアルケニル基1モルに対して、(B)成分中のケイ素原子結合水素原子が0.4〜20モルとなる量}、
(C)水 20〜500質量部、
(D)セルロースナノファイバー{(C)成分100質量部に対して0.01〜15質量部}、
(E)乳化剤 0.1〜15質量部、および
(F)ヒドロシリル化反応触媒(本組成物のヒドロシリル化反応を促進する量)
から少なくともなる。
A液:(A)成分、(C)成分、(D)成分、(E)成分、および(F)成分からなり、(B)成分を含まない組成物、
B液:(A)成分、(C)成分、(D)成分、および(E)成分からなり、(B)成分と(F)成分を含まない組成物、
C液:(B)成分からなり、(C)成分、(D)成分、(E)成分、および(F)成分を含まない組成物
からなる3液型スポンジ形成性シリコーンゴム組成物、または、
A‘液:(A)成分、(F)成分、および必要に応じて(E)成分からなり、(B)成分、(C)成分、および(D)成分を含まない組成物、
B‘液:(B)成分、および必要に応じて(E)成分からなり、(C)成分、(D)成分、および(F)成分を含まない組成物、
C‘液:(C)成分および(D)成分からなり、(A)成分、(B)成分、(E)成分、および(F)成分を含まない組成物
からなる3液型スポンジ形成性シリコーンゴム組成物として保存し、成形に供する直前に3液を、例えば、スタティックミキサーやダイナミックミキサー等の混合装置を用いて混合することが好ましい。また、
A‘’液:(A)成分、(C)成分、(D)成分、(E)成分、および(F)成分からなり、(B)成分を含まない組成物と
B‘’液:(B)成分からなり、(C)成分、(D)成分、(E)成分、および(F)成分を含まない組成物
からなる2液型スポンジ形成性シリコーンゴム組成物として保存し、成形に供する直前に2液を、例えば、スタティックミキサーやダイナミックミキサー等の混合装置を用いて混合することが好ましい。
ポリオルガノシロキサンの25℃における粘度(mPa・s)は、JIS K7117−1に準拠したB型粘度計によって測定した値であり、動粘度(mm2/s)は、JIS Z8803に準拠したウベローデ型粘度計によって測定した値である。
JIS K 6268に準じて、密度を測定した。
JIS K 7312に規定されたタイプC硬さ試験機(Asker C硬度計)を用いた試験方法に準じ、厚さ6mmの試験片を使用して、硬さを測定した。
JIS K 6251に準じて、引張強さおよび伸びを測定した。
JIS K 6262に準じて、180℃、25%圧縮という条件で、22時間後の圧縮永久ひずみを測定した。
長さ 70mm、幅 50mm、厚さ 6mmのキャビティを有する金型を用いて成型した、硬さ測定用試験片の長尺方向の長さを測定して、次の式に代入して求めた。
長さ 70mm、幅 50mm、厚さ 6mmのキャビティを有する金型を用いて硬さ測定用試験片を成型した後の析出物による金型表面の汚れの有無を評価した。
粘度40,000mPa・sの分子鎖両末端ジメチルビニルシロキシ基封鎖ポリジメチルシロキサン 100質量部、BET比表面積400m2/gのフュームドシリカ 50質量部、ヘキサメチルジシラザン 10質量部、テトラメチルジビニルシラザン 0.36質量部、水 2質量部、粘度20mPa・sの分子鎖両末端ジメチルヒドロキシシロキシ基封鎖ジメチルシロキサン・メチルビニルシロキサン共重合体(ビニル基含有量約10.9質量%) 0.26質量部をロスミキサーに投入し、室温で均一になるまで混合した後、減圧下200℃で2時間加熱処理して流動性のあるシリカマスターバッチを調製した。
セルロースナノファイバー(数平均繊維径が4nm)の2%水分散液(第一工業製薬株式会社製の商品名Rheocrysta C−2SP) 10質量部とイオン交換水 20質量部をホモミキサーに投入し、室温で均一になるまで混合して、セルロースナノファイバーにより増粘させた水分散液(c-1)を調製した。
セルロースナノファイバー(数平均繊維径が4nm)の2%水分散液(第一工業製薬株式会社製の商品名Rheocrysta C−2SP) 10質量部とイオン交換水 50質量部をホモミキサーに投入し、室温で均一になるまで混合して、セルロースナノファイバーにより増粘させた水分散液(c-2)を調製した。
スメクタイトクレー(株式会社ホージュン製の有機ポリマー複合親水性精製ベントナイト;pH=6.5) 0.85質量部とイオン交換水 99.15質量部をホモミキサーに投入し、室温で均一になるまで混合して、スメクタイトクレーにより増粘させた水分散液(c-3)を調製した。
シリカマスターバッチ、(A)成分、(C)成分、(D)成分、(E)成分を表1に記載の組成(質量部)でホモミキサー(特殊機化株式会社製)に投入し、25℃で均一になるまで混合した。次いで、得られた混合物に(B)成分、(F)成分および(G)成分を表1に記載の組成(質量部)で混合し、脱気してスポンジ形成性シリコーンゴム組成物を調製した。なお、表1において、SiH/Viは、シリコーンゴム組成物において、(A)成分に相当するポリオルガノシロキサン中のビニル基1モルに対する、(B)成分に相当するポリオルガノシロキサン中のケイ素原子結合水素原子のモル数を示す。
(a−1): 粘度10,000mPa・sの分子鎖両末端トリメチルシロキシ基封鎖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=0.13質量%)
(a−2): 粘度350mPa・sの分子鎖両末端ジメチルビニルシロキシ基封鎖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=約1.17質量%)
(a−3): 粘度35,000mPa・sの分子鎖両末端トリメチルシロキシ基封鎖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=約0.50質量%)
(b−1): 動粘度43.5mm2/sの分子鎖両末端トリメチルシロキシ基封鎖ジメチルシロキサン・メチルハイドロジェンシロキサン共重合体(ケイ素原子結合水素原子の含有量=約0.69質量%)
(c−1): 調製例2で調製したセルロースナノファイバーにより増粘させた水分散液(セルロースナノファイバーの含有量=0.67質量%)
(c−2): 調製例3で調製したセルロースナノファイバーにより増粘させた水分散液(セルロースナノファイバーの含有量=0.22質量%)
(c−3): 調製例4で調製したスメクタイトクレーにより増粘させた水分散液(スメクタイトクレーの含有量=0.85質量%)
(d−1): ノニオン系界面活性剤(ソルビタン脂肪酸エステル、花王株式会社製の商品名:レオドールSP−O10V、HLBの値=4.3)
(d−2): ノニオン系界面活性剤(ソルビタン脂肪酸エステル、花王株式会社製の商品名:レオドールSP−O30V、HLBの値=1.8)
(e−1): 白金の1,3−ジビニルテトラメチルジシロキサン錯体の1,3−ジビニルテトラメチルジシロキサン溶液(白金金属の含有量=約4000ppm)
(f−1): エチニルシクロヘキサノール 2質量部と粘度10,000mPa・sの分子鎖両末端ジメチルビニルシロキシ基封鎖ポリジメチルシロキサン 98質量部との混合物
顔料MB: ベンガラ(バイエル社製の商品名:バイフェロクス) 40質量部と粘度10,000mPa・sの分子鎖両末端ジメチルビニルシロキシ基封鎖ポリジメチルシロキサン 60質量部との混合物
Claims (5)
- (A)一分子中に少なくとも2個のケイ素原子結合アルケニル基を有するポリオルガノシロキサン 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を有するポリオルガノシロキサン{(A)成分中のアルケニル基1モルに対して、(B)成分中のケイ素原子結合水素原子が0.4〜20モルとなる量}、
(C)水 20〜500質量部、
(D)数平均繊維径2〜150nmのセルロースナノファイバー{(C)成分100質量部に対して0.01〜15質量部}、
(E)乳化剤 0.1〜15質量部、および
(F)ヒドロシリル化反応触媒(本組成物のヒドロシリル化反応を促進する量)
から少なくともなるスポンジ形成性シリコーンゴム組成物。 - さらに、(G)ヒドロシリル化反応抑制剤を、(A)成分100質量部に対して0.001〜5質量部含有する、請求項1に記載のスポンジ形成性シリコーンゴム組成物。
- さらに、(H)補強性シリカ微粉末を、(A)成分100質量部に対して30質量部以下含有する、請求項1または2に記載のスポンジ形成性シリコーンゴム組成物。
- 請求項1乃至3のいずれか1項に記載のスポンジ形成性シリコーンゴム組成物をヒドロシリル化反応により架橋した後、得られたシリコーンゴムから水を除去するか、または該組成物をヒドロシリル化反応により架橋させながら水を除去してなるシリコーンゴムスポンジ。
- 画像形成装置の定着部材用シリコーンゴムスポンジである、請求項4に記載のシリコーンゴムスポンジ。
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