JP2020180231A - ゴム組成物および空気入りタイヤ - Google Patents
ゴム組成物および空気入りタイヤ Download PDFInfo
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- JP2020180231A JP2020180231A JP2019084662A JP2019084662A JP2020180231A JP 2020180231 A JP2020180231 A JP 2020180231A JP 2019084662 A JP2019084662 A JP 2019084662A JP 2019084662 A JP2019084662 A JP 2019084662A JP 2020180231 A JP2020180231 A JP 2020180231A
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- Prior art keywords
- liquid crystal
- rubber composition
- polyurethane elastomer
- rubber
- group
- Prior art date
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 90
- 239000005060 rubber Substances 0.000 title claims abstract description 85
- 239000000203 mixture Substances 0.000 title claims abstract description 68
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 69
- 229920003225 polyurethane elastomer Polymers 0.000 claims abstract description 55
- 150000001875 compounds Chemical class 0.000 claims abstract description 54
- -1 isocyanate compound Chemical class 0.000 claims abstract description 45
- 239000000945 filler Substances 0.000 claims abstract description 40
- 229920000642 polymer Polymers 0.000 claims abstract description 40
- 239000002245 particle Substances 0.000 claims abstract description 32
- 239000012948 isocyanate Substances 0.000 claims abstract description 26
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 21
- 229920000106 Liquid crystal polymer Polymers 0.000 claims abstract description 19
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 claims abstract description 19
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 16
- 150000001993 dienes Chemical class 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims abstract description 8
- 239000004997 Liquid crystal elastomers (LCEs) Substances 0.000 claims abstract description 6
- 238000013329 compounding Methods 0.000 claims description 12
- 229920003244 diene elastomer Polymers 0.000 claims description 9
- 238000007720 emulsion polymerization reaction Methods 0.000 abstract description 8
- 238000010557 suspension polymerization reaction Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 description 29
- 239000003795 chemical substances by application Substances 0.000 description 24
- 238000004073 vulcanization Methods 0.000 description 19
- 238000000034 method Methods 0.000 description 16
- 238000002156 mixing Methods 0.000 description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 15
- 239000003999 initiator Substances 0.000 description 13
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 12
- 125000002947 alkylene group Chemical group 0.000 description 12
- 230000003712 anti-aging effect Effects 0.000 description 12
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- 239000010936 titanium Substances 0.000 description 12
- 239000000446 fuel Substances 0.000 description 11
- 239000000047 product Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 10
- 229910052717 sulfur Inorganic materials 0.000 description 10
- 239000011593 sulfur Substances 0.000 description 10
- 238000005259 measurement Methods 0.000 description 9
- 239000004094 surface-active agent Substances 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 8
- AWMVMTVKBNGEAK-UHFFFAOYSA-N Styrene oxide Chemical compound C1OC1C1=CC=CC=C1 AWMVMTVKBNGEAK-UHFFFAOYSA-N 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 7
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- 239000005062 Polybutadiene Substances 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 239000006087 Silane Coupling Agent Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000003505 polymerization initiator Substances 0.000 description 6
- 229920005862 polyol Polymers 0.000 description 6
- 239000000806 elastomer Substances 0.000 description 5
- 238000004898 kneading Methods 0.000 description 5
- 125000005647 linker group Chemical group 0.000 description 5
- 229920002857 polybutadiene Polymers 0.000 description 5
- 239000000376 reactant Substances 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 238000007259 addition reaction Methods 0.000 description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000002296 dynamic light scattering Methods 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 238000007561 laser diffraction method Methods 0.000 description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 4
- 150000003077 polyols Chemical class 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 4
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- 235000021355 Stearic acid Nutrition 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N butadiene group Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 125000005442 diisocyanate group Chemical group 0.000 description 3
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 3
- 239000002685 polymerization catalyst Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 239000008117 stearic acid Substances 0.000 description 3
- 238000012719 thermal polymerization Methods 0.000 description 3
- ZODNDDPVCIAZIQ-UHFFFAOYSA-N (2-hydroxy-3-prop-2-enoyloxypropyl) 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(O)COC(=O)C=C ZODNDDPVCIAZIQ-UHFFFAOYSA-N 0.000 description 2
- 229940008841 1,6-hexamethylene diisocyanate Drugs 0.000 description 2
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 description 2
- 239000001273 butane Substances 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 2
- 238000000113 differential scanning calorimetry Methods 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical group C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 2
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000000967 suction filtration Methods 0.000 description 2
- TXDNPSYEJHXKMK-UHFFFAOYSA-N sulfanylsilane Chemical compound S[SiH3] TXDNPSYEJHXKMK-UHFFFAOYSA-N 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 125000005409 triarylsulfonium group Chemical group 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- HHQAGBQXOWLTLL-UHFFFAOYSA-N (2-hydroxy-3-phenoxypropyl) prop-2-enoate Chemical compound C=CC(=O)OCC(O)COC1=CC=CC=C1 HHQAGBQXOWLTLL-UHFFFAOYSA-N 0.000 description 1
- HOVAGTYPODGVJG-UVSYOFPXSA-N (3s,5r)-2-(hydroxymethyl)-6-methoxyoxane-3,4,5-triol Chemical compound COC1OC(CO)[C@@H](O)C(O)[C@H]1O HOVAGTYPODGVJG-UVSYOFPXSA-N 0.000 description 1
- COTZVJGHVRNXLY-UHFFFAOYSA-N 1,1-diisocyanatoheptane Chemical compound CCCCCCC(N=C=O)N=C=O COTZVJGHVRNXLY-UHFFFAOYSA-N 0.000 description 1
- ZWVMLYRJXORSEP-UHFFFAOYSA-N 1,2,6-Hexanetriol Chemical compound OCCCCC(O)CO ZWVMLYRJXORSEP-UHFFFAOYSA-N 0.000 description 1
- ZTNJGMFHJYGMDR-UHFFFAOYSA-N 1,2-diisocyanatoethane Chemical class O=C=NCCN=C=O ZTNJGMFHJYGMDR-UHFFFAOYSA-N 0.000 description 1
- RTTZISZSHSCFRH-UHFFFAOYSA-N 1,3-bis(isocyanatomethyl)benzene Chemical class O=C=NCC1=CC=CC(CN=C=O)=C1 RTTZISZSHSCFRH-UHFFFAOYSA-N 0.000 description 1
- OHLKMGYGBHFODF-UHFFFAOYSA-N 1,4-bis(isocyanatomethyl)benzene Chemical class O=C=NCC1=CC=C(CN=C=O)C=C1 OHLKMGYGBHFODF-UHFFFAOYSA-N 0.000 description 1
- CDMDQYCEEKCBGR-UHFFFAOYSA-N 1,4-diisocyanatocyclohexane Chemical compound O=C=NC1CCC(N=C=O)CC1 CDMDQYCEEKCBGR-UHFFFAOYSA-N 0.000 description 1
- NQUXRXBRYDZZDL-UHFFFAOYSA-N 1-(2-prop-2-enoyloxyethyl)cyclohexane-1,2-dicarboxylic acid Chemical compound OC(=O)C1CCCCC1(CCOC(=O)C=C)C(O)=O NQUXRXBRYDZZDL-UHFFFAOYSA-N 0.000 description 1
- BGZGQDDKQNYZID-UHFFFAOYSA-N 1-(hydroxymethyl)cyclohexan-1-ol Chemical compound OCC1(O)CCCCC1 BGZGQDDKQNYZID-UHFFFAOYSA-N 0.000 description 1
- ZPFOZYRWPCWORL-UHFFFAOYSA-N 1-[1-(dimethylamino)ethoxy]-n,n-dimethylethanamine Chemical compound CN(C)C(C)OC(C)N(C)C ZPFOZYRWPCWORL-UHFFFAOYSA-N 0.000 description 1
- YUTHQCGFZNYPIG-UHFFFAOYSA-N 1-[2-(2-methylprop-2-enoyloxy)ethyl]cyclohexane-1,2-dicarboxylic acid Chemical compound CC(=C)C(=O)OCCC1(C(O)=O)CCCCC1C(O)=O YUTHQCGFZNYPIG-UHFFFAOYSA-N 0.000 description 1
- LFSYUSUFCBOHGU-UHFFFAOYSA-N 1-isocyanato-2-[(4-isocyanatophenyl)methyl]benzene Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=CC=C1N=C=O LFSYUSUFCBOHGU-UHFFFAOYSA-N 0.000 description 1
- KWVGIHKZDCUPEU-UHFFFAOYSA-N 2,2-dimethoxy-2-phenylacetophenone Chemical compound C=1C=CC=CC=1C(OC)(OC)C(=O)C1=CC=CC=C1 KWVGIHKZDCUPEU-UHFFFAOYSA-N 0.000 description 1
- MZFSUTKULKOQOE-UHFFFAOYSA-N 2,3-bis(oxiran-2-ylmethoxy)propan-1-ol;prop-2-enoic acid Chemical compound OC(=O)C=C.C1OC1COC(CO)COCC1CO1 MZFSUTKULKOQOE-UHFFFAOYSA-N 0.000 description 1
- YWEJNVNVJGORIU-UHFFFAOYSA-N 2-(2-hydroxyethoxy)ethyl 2-hydroxy-2-phenylacetate Chemical compound OCCOCCOC(=O)C(O)C1=CC=CC=C1 YWEJNVNVJGORIU-UHFFFAOYSA-N 0.000 description 1
- IEQWWMKDFZUMMU-UHFFFAOYSA-N 2-(2-prop-2-enoyloxyethyl)butanedioic acid Chemical compound OC(=O)CC(C(O)=O)CCOC(=O)C=C IEQWWMKDFZUMMU-UHFFFAOYSA-N 0.000 description 1
- LELKUNFWANHDPG-UHFFFAOYSA-N 2-(oxiran-2-ylmethoxymethyl)oxirane;prop-2-enoic acid Chemical compound OC(=O)C=C.C1OC1COCC1CO1 LELKUNFWANHDPG-UHFFFAOYSA-N 0.000 description 1
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- BPSUVCAKLAPDJU-UHFFFAOYSA-N 2-[1-(oxiran-2-ylmethoxy)propan-2-yloxymethyl]oxirane;prop-2-enoic acid Chemical compound OC(=O)C=C.C1OC1COC(C)COCC1CO1 BPSUVCAKLAPDJU-UHFFFAOYSA-N 0.000 description 1
- WUPSBKKLPHSSFN-UHFFFAOYSA-N 2-[1-[1-[1-(oxiran-2-ylmethoxy)propan-2-yloxy]propan-2-yloxy]propan-2-yloxymethyl]oxirane;prop-2-enoic acid Chemical compound OC(=O)C=C.C1OC1COC(C)COC(C)COC(C)COCC1CO1 WUPSBKKLPHSSFN-UHFFFAOYSA-N 0.000 description 1
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- 125000000022 2-aminoethyl group Chemical group [H]C([*])([H])C([H])([H])N([H])[H] 0.000 description 1
- XMLYCEVDHLAQEL-UHFFFAOYSA-N 2-hydroxy-2-methyl-1-phenylpropan-1-one Chemical compound CC(C)(O)C(=O)C1=CC=CC=C1 XMLYCEVDHLAQEL-UHFFFAOYSA-N 0.000 description 1
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- UXTGJIIBLZIQPK-UHFFFAOYSA-N 3-(2-prop-2-enoyloxyethyl)phthalic acid Chemical compound OC(=O)C1=CC=CC(CCOC(=O)C=C)=C1C(O)=O UXTGJIIBLZIQPK-UHFFFAOYSA-N 0.000 description 1
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- DQMRXALBJIVORP-UHFFFAOYSA-N 3-[methoxy(dimethyl)silyl]propane-1-thiol Chemical compound CO[Si](C)(C)CCCS DQMRXALBJIVORP-UHFFFAOYSA-N 0.000 description 1
- SXFJDZNJHVPHPH-UHFFFAOYSA-N 3-methylpentane-1,5-diol Chemical compound OCCC(C)CCO SXFJDZNJHVPHPH-UHFFFAOYSA-N 0.000 description 1
- FYRWKWGEFZTOQI-UHFFFAOYSA-N 3-prop-2-enoxy-2,2-bis(prop-2-enoxymethyl)propan-1-ol Chemical compound C=CCOCC(CO)(COCC=C)COCC=C FYRWKWGEFZTOQI-UHFFFAOYSA-N 0.000 description 1
- CYUZOYPRAQASLN-UHFFFAOYSA-N 3-prop-2-enoyloxypropanoic acid Chemical compound OC(=O)CCOC(=O)C=C CYUZOYPRAQASLN-UHFFFAOYSA-N 0.000 description 1
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- 125000000217 alkyl group Chemical group 0.000 description 1
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- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
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- 229920001577 copolymer Polymers 0.000 description 1
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- ARUKYTASOALXFG-UHFFFAOYSA-N cycloheptylcycloheptane Chemical compound C1CCCCCC1C1CCCCCC1 ARUKYTASOALXFG-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- UNXHWFMMPAWVPI-ZXZARUISSA-N erythritol Chemical compound OC[C@H](O)[C@H](O)CO UNXHWFMMPAWVPI-ZXZARUISSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
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- MGFYSGNNHQQTJW-UHFFFAOYSA-N iodonium Chemical compound [IH2+] MGFYSGNNHQQTJW-UHFFFAOYSA-N 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 239000003273 ketjen black Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- HOVAGTYPODGVJG-UHFFFAOYSA-N methyl beta-galactoside Natural products COC1OC(CO)C(O)C(O)C1O HOVAGTYPODGVJG-UHFFFAOYSA-N 0.000 description 1
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
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- 229910052759 nickel Inorganic materials 0.000 description 1
- BKIMMITUMNQMOS-UHFFFAOYSA-N nonane Chemical compound CCCCCCCCC BKIMMITUMNQMOS-UHFFFAOYSA-N 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 229960003424 phenylacetic acid Drugs 0.000 description 1
- 239000003279 phenylacetic acid Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 150000008442 polyphenolic compounds Chemical class 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- RLEFZEWKMQQZOA-UHFFFAOYSA-M potassium;octanoate Chemical compound [K+].CCCCCCCC([O-])=O RLEFZEWKMQQZOA-UHFFFAOYSA-M 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000013040 rubber vulcanization Methods 0.000 description 1
- AQSMLSJHYWHNRT-UHFFFAOYSA-N s-(3-trimethoxysilylpropyl) propanethioate Chemical compound CCC(=O)SCCC[Si](OC)(OC)OC AQSMLSJHYWHNRT-UHFFFAOYSA-N 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical compound [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
- 239000012974 tin catalyst Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- VOZKAJLKRJDJLL-UHFFFAOYSA-N tolylenediamine group Chemical group CC1=C(C=C(C=C1)N)N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- NBXZNTLFQLUFES-UHFFFAOYSA-N triethoxy(propyl)silane Chemical compound CCC[Si](OCC)(OCC)OCC NBXZNTLFQLUFES-UHFFFAOYSA-N 0.000 description 1
- ASAOXGWSIOQTDI-UHFFFAOYSA-N triethoxy-[2-(2-triethoxysilylethyltetrasulfanyl)ethyl]silane Chemical compound CCO[Si](OCC)(OCC)CCSSSSCC[Si](OCC)(OCC)OCC ASAOXGWSIOQTDI-UHFFFAOYSA-N 0.000 description 1
- FBBATURSCRIBHN-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyldisulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSCCC[Si](OCC)(OCC)OCC FBBATURSCRIBHN-UHFFFAOYSA-N 0.000 description 1
- VTHOKNTVYKTUPI-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSSSCCC[Si](OCC)(OCC)OCC VTHOKNTVYKTUPI-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- JTTSZDBCLAKKAY-UHFFFAOYSA-N trimethoxy-[3-(3-trimethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CO[Si](OC)(OC)CCCSSSSCCC[Si](OC)(OC)OC JTTSZDBCLAKKAY-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
原料反応物1〜3および高分子フィラー1〜7について、示唆走査熱量分析計[DSC](品名:X−DSC 7000、日立ハイテクサイエンス社製)を使用し、転移温度(Ti)を測定した。
乳化重合液晶ポリウレタンエラストマーを含有する高分子フィラーの平均粒子径は、乳化重合後、水中で分散状態の乳化重合液晶ポリウレタンエラストマーの平均粒子径を、レーザー回析式粒度分布測定装置(製品名「SALD−2200」、島津製作所社製)を用いて、レーザー回折法により測定した。
実施例1〜8のゴム組成物、および比較例1のゴム組成物について、160℃で20分間加熱することで加硫を行い、所定形状に成形して測定試料とした。各測定試料について、動的粘弾性測定装置(製品名「全自動粘弾性アナライザ VR−7110」、上島製作所社製)により貯蔵弾性率(E’)及び損失弾性率(E”)を測定し、tanδ(0℃)およびtanδ(60℃)を求めた。表3は、比較例1のtanδの値を100とした指数で表示してある。測定条件は以下のとおりである。
測定試料のサイズ:長さ40mm、幅3mm、厚み2mm
測定モード :引張モード
測定温度 :0℃、60℃
周波数 :100Hz
動歪み :0.15%
実施例1〜8のゴム組成物、および比較例1のゴム組成物について、160℃で20分間加熱することで加硫を行い、所定形状に成形して測定試料とした。得られた各測定資料について、23℃における硬度(JIS K6253に準拠)をデュロメータ タイプA(型式:GS−719N、株式会社テクロック製)により測定した。表3は、比較例1の硬度の値を100とし
た指数で表示してある。
反応容器に、活性水素基を有するメソゲン基含有化合物としてBH6(500g)、水酸化カリウム(19g)、及び溶媒としてN,N−ジメチルホルムアミド(3000ml)を入れて混合し、さらに、アルキレンオキシドとしてプロピレンオキシドを1モルのBH6に対して8.8当量添加し、これらの混合物を、加圧条件下、120℃で2時間反応させた(付加反応)。次いで、反応容器にシュウ酸(15g)を添加して付加反応を停止させ、反応液中の不溶な塩を吸引ろ過によって除去し、さらに、反応液中のN,N−ジメチルホルムアミドを減圧蒸留法により除去することにより、メソゲンジオールAを得た。メソゲンジオールAの水酸基価は141である。メソゲンジオールAの合成スキームを式(2)に示す。なお、式(2)中に示したメソゲンジオールAは代表的なものであり、種々の構造異性体を含み得る。式(2)中のn*は平均4.4である。
反応容器に、活性水素基を有するメソゲン基含有化合物としてBHBA6(500g)、水酸化カリウム(19g)、及び溶媒としてN,N−ジメチルホルムアミド(3000ml)を入れて混合し、さらに、アルキレンオキシドとしてプロピレンオキシドを1モルのBHBA6に対して8.4当量添加し、これらの混合物を、加圧条件下、120℃で2時間反応させた(付加反応)。次いで、反応容器にシュウ酸(15g)を添加して付加反応を停止させ、反応液中の不溶な塩を吸引ろ過によって除去し、さらに、反応液中のN,N−ジメチルホルムアミドを減圧蒸留法により除去することにより、メソゲンジオールBを得た。メソゲンジオールBの水酸基価は137である。メソゲンジオールBの合成スキームを式(3)に示す。なお、式(3)中に示したメソゲンジオールBは代表的なものであり、種々の構造異性体を含み得る。式(3)中のn*は平均4.2である。
メソゲンジオールAまたはメソゲンジオールB100質量部に対し、イソシアネート化合物として1,6−ヘキサメチレンジイソシアネート(東京化成工業株式会社製)、光重合性基含有化合物として2−ヒドロキシエチルアクリレート(共栄社化学社製)、光反応開始剤として2,4,6−トリメチルベンゾイル−ジフェニル−フォスフィンオキサイド(TPO)(IGM resins社製)を表1に記載の配合比で配合し、これらを撹拌しながら80℃で混合し、原料反応物1〜3を製造した。
原料反応物1〜3、各界面活性剤、水を所定の割合で配合し、卓上型UV硬化装置(品名:アイminiグランテージ(ESC−1511U)、アイグラフィックス社製)を用いて波長200〜600nm光を照射することにより(照射エネルギー800mJ)、乳化重合液晶ポリウレタンエラストマーを含む高分子フィラー1〜7を製造した。乳化重合後、水中で分散状態の乳化重合液晶ポリウレタンエラストマーの平均粒子径を前記方法により測定後、110℃で10時間乾燥し、さらに110℃で真空乾燥したものを後述のゴム組成物に配合した。
得られた高分子フィラー1〜7を、ラボミキサー(製品名:ラボプラストミル、東洋精機製作所社製)を使用してジエン系ゴム(SBR、商品名:SL563、JSR社製)に配合した。配合手順は、表3に記載の配合比率で、初めに第一段階として、SBRに対しシリカ(商品名:ニップシールAQ、東ソー・シリカ社製)、シランカップリング剤(ビス(3−トリエトキシシリルプロピル)テトラスルフィド、商品名:Si69、エボニック・デグザ社製)、亜鉛華(商品名:亜鉛華1種、三井金属鉱業社製)、ステアリン酸(商品名:ルナックS−20、花王株式会社製)、および老化防止剤(商品名:ノクラック6C、大内新興化学工業株式会社製)を添加して160℃で混練し、次に第二段階として、混練物に高分子フィラーを添加して160℃で混練し、さらに第三段階として、混練物に、硫黄(ゴム用粉末硫黄150メッシュ、細井化学工業社製)、および加硫促進剤(商品名:ノクセラーCZ(1次加硫促進剤)、ノクセラーD(2次加硫促進剤)、いずれも大内新興化学工業社製)を添加して90℃で混練し、得られたものを実施例1〜8および比較例1のゴム組成物とした。
Claims (9)
- ジエン系ゴムと、少なくとも液晶高分子を含有し、平均粒子径が500μm以下である高分子フィラーとを含有するゴム組成物。
- 前記液晶高分子が、液晶相から等方相への転移温度(Ti)が20℃以下のものである請求項1に記載のゴム組成物。
- 前記液晶高分子が、液晶エラストマーである請求項1または2に記載のゴム組成物。
- 前記液晶高分子が、液晶ポリウレタンエラストマーである請求項1〜3のいずれかに記載のゴム組成物。
- 前記液晶ポリウレタンエラストマーが、少なくとも活性水素基を有するメソゲン基含有化合物と、イソシアネート化合物との反応物である請求項4に記載のゴム組成物。
- 前記液晶ポリウレタンエラストマーが、少なくとも活性水素基を有するメソゲン基含有化合物と、イソシアネート化合物と、光重合性基含有化合物との反応物である請求項4に記載のゴム組成物。
- 前記液晶ポリウレタンエラストマーが、乳化重合液晶ポリウレタンエラストマーまたは懸濁重合液晶ポリウレタンエラストマーである請求項6に記載のゴム組成物。
- 前記ジエン系ゴムの全量を100質量部としたとき、前記高分子フィラーの配合量が1〜50質量部である請求項1〜7のいずれかに記載のゴム組成物。
- 請求項1〜8のいずれかに記載のゴム組成物を備える空気入りタイヤ。
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