JP6888306B2 - トレッド用ゴム組成物およびタイヤ - Google Patents
トレッド用ゴム組成物およびタイヤ Download PDFInfo
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- JP6888306B2 JP6888306B2 JP2017009683A JP2017009683A JP6888306B2 JP 6888306 B2 JP6888306 B2 JP 6888306B2 JP 2017009683 A JP2017009683 A JP 2017009683A JP 2017009683 A JP2017009683 A JP 2017009683A JP 6888306 B2 JP6888306 B2 JP 6888306B2
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- 229920001971 elastomer Polymers 0.000 title claims description 70
- 239000005060 rubber Substances 0.000 title claims description 70
- 239000000203 mixture Substances 0.000 title claims description 38
- 239000002245 particle Substances 0.000 claims description 42
- 239000000843 powder Substances 0.000 claims description 40
- 102000002322 Egg Proteins Human genes 0.000 claims description 36
- 108010000912 Egg Proteins Proteins 0.000 claims description 36
- 210000003278 egg shell Anatomy 0.000 claims description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 35
- 239000006229 carbon black Substances 0.000 claims description 24
- 239000011347 resin Substances 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 20
- 239000000377 silicon dioxide Substances 0.000 claims description 16
- 239000004840 adhesive resin Substances 0.000 claims description 7
- 229920006223 adhesive resin Polymers 0.000 claims description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- 150000003505 terpenes Chemical class 0.000 claims description 6
- 235000007586 terpenes Nutrition 0.000 claims description 6
- 239000004902 Softening Agent Substances 0.000 claims 1
- 235000019241 carbon black Nutrition 0.000 description 23
- 239000003795 chemical substances by application Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 15
- 239000005062 Polybutadiene Substances 0.000 description 14
- 229920002857 polybutadiene Polymers 0.000 description 14
- 239000007788 liquid Substances 0.000 description 12
- 229920001194 natural rubber Polymers 0.000 description 12
- 238000004073 vulcanization Methods 0.000 description 12
- 244000043261 Hevea brasiliensis Species 0.000 description 11
- 229920003052 natural elastomer Polymers 0.000 description 11
- 238000005299 abrasion Methods 0.000 description 9
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- 239000000126 substance Substances 0.000 description 9
- 239000010419 fine particle Substances 0.000 description 8
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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 230000003712 anti-aging effect Effects 0.000 description 6
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 6
- 239000000945 filler Substances 0.000 description 6
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- 238000012360 testing method Methods 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000002174 Styrene-butadiene Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 150000001993 dienes Chemical class 0.000 description 4
- FLKPEMZONWLCSK-UHFFFAOYSA-N diethyl phthalate Chemical compound CCOC(=O)C1=CC=CC=C1C(=O)OCC FLKPEMZONWLCSK-UHFFFAOYSA-N 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 3
- 235000021355 Stearic acid Nutrition 0.000 description 3
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- WHCIAGVVOCLXFV-UHFFFAOYSA-N 2-(1,3-benzothiazol-2-ylsulfanyl)-1,3-benzothiazole Chemical group C1=CC=C2SC(SC=3SC4=CC=CC=C4N=3)=NC2=C1 WHCIAGVVOCLXFV-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 2
- XTJFFFGAUHQWII-UHFFFAOYSA-N Dibutyl adipate Chemical compound CCCCOC(=O)CCCCC(=O)OCCCC XTJFFFGAUHQWII-UHFFFAOYSA-N 0.000 description 2
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- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
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- 125000003118 aryl group Chemical group 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
- ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- -1 crushed shells Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 229940100539 dibutyl adipate Drugs 0.000 description 2
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- 238000009472 formulation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
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- 238000000465 moulding Methods 0.000 description 2
- IUJLOAKJZQBENM-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine Chemical compound C1=CC=C2SC(SNC(C)(C)C)=NC2=C1 IUJLOAKJZQBENM-UHFFFAOYSA-N 0.000 description 2
- OCSGUHJOLXJCAE-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-n-ethyl-2-methylpropan-2-amine Chemical compound C1=CC=C2SC(SN(CC)C(C)(C)C)=NC2=C1 OCSGUHJOLXJCAE-UHFFFAOYSA-N 0.000 description 2
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
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- 238000006748 scratching Methods 0.000 description 2
- 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 2
- 125000003396 thiol group Chemical group [H]S* 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 2
- 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 2
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 description 2
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 2
- KOWVWXQNQNCRRS-UHFFFAOYSA-N tris(2,4-dimethylphenyl) phosphate Chemical compound CC1=CC(C)=CC=C1OP(=O)(OC=1C(=CC(C)=CC=1)C)OC1=CC=C(C)C=C1C KOWVWXQNQNCRRS-UHFFFAOYSA-N 0.000 description 2
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- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 description 1
- UJPKMTDFFUTLGM-UHFFFAOYSA-N 1-aminoethanol Chemical compound CC(N)O UJPKMTDFFUTLGM-UHFFFAOYSA-N 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- 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 1
- YEVQZPWSVWZAOB-UHFFFAOYSA-N 2-(bromomethyl)-1-iodo-4-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=C(I)C(CBr)=C1 YEVQZPWSVWZAOB-UHFFFAOYSA-N 0.000 description 1
- OXYZDRAJMHGSMW-UHFFFAOYSA-N 3-chloropropyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)CCCCl OXYZDRAJMHGSMW-UHFFFAOYSA-N 0.000 description 1
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 description 1
- ZZMVLMVFYMGSMY-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound C1=CC(NC(C)CC(C)C)=CC=C1NC1=CC=CC=C1 ZZMVLMVFYMGSMY-UHFFFAOYSA-N 0.000 description 1
- ZEUAKOUTLQUQDN-UHFFFAOYSA-N 6-(dibenzylcarbamothioyldisulfanyl)hexylsulfanyl n,n-dibenzylcarbamodithioate Chemical compound C=1C=CC=CC=1CN(CC=1C=CC=CC=1)C(=S)SSCCCCCCSSC(=S)N(CC=1C=CC=CC=1)CC1=CC=CC=C1 ZEUAKOUTLQUQDN-UHFFFAOYSA-N 0.000 description 1
- GPZYYYGYCRFPBU-UHFFFAOYSA-N 6-Hydroxyflavone Chemical compound C=1C(=O)C2=CC(O)=CC=C2OC=1C1=CC=CC=C1 GPZYYYGYCRFPBU-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000209507 Camellia Species 0.000 description 1
- HECLRDQVFMWTQS-UHFFFAOYSA-N Dicyclopentadiene Chemical compound C1C2C3CC=CC3C1C=C2 HECLRDQVFMWTQS-UHFFFAOYSA-N 0.000 description 1
- 239000006237 Intermediate SAF Substances 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000000427 antigen Substances 0.000 description 1
- 102000036639 antigens Human genes 0.000 description 1
- 108091007433 antigens Proteins 0.000 description 1
- 125000001164 benzothiazolyl group Chemical group S1C(=NC2=C1C=CC=C2)* 0.000 description 1
- 230000005540 biological transmission Effects 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
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 235000018597 common camellia Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 description 1
- 125000002897 diene group Chemical group 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- UBHUJVKAJQRWRR-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-2-ethyl-n-(2-ethylhexyl)hexan-1-amine Chemical compound C1=CC=C2SC(SN(CC(CC)CCCC)CC(CC)CCCC)=NC2=C1 UBHUJVKAJQRWRR-UHFFFAOYSA-N 0.000 description 1
- VUPGMBVHOLNANB-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-2-methyl-n-(2-methylhexyl)hexan-1-amine Chemical compound C1=CC=C2SC(SN(CC(C)CCCC)CC(C)CCCC)=NC2=C1 VUPGMBVHOLNANB-UHFFFAOYSA-N 0.000 description 1
- ILSQBBRAYMWZLQ-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-n-propan-2-ylpropan-2-amine Chemical compound C1=CC=C2SC(SN(C(C)C)C(C)C)=NC2=C1 ILSQBBRAYMWZLQ-UHFFFAOYSA-N 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 229920002587 poly(1,3-butadiene) polymer Polymers 0.000 description 1
- 150000003097 polyterpenes Chemical class 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 238000010059 sulfur vulcanization Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 150000003568 thioethers Chemical class 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
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 description 1
- QPPXVBLDIDEHBA-UHFFFAOYSA-N trimethoxy(3-nitropropyl)silane Chemical compound CO[Si](OC)(OC)CCC[N+]([O-])=O QPPXVBLDIDEHBA-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
Description
NR:TSR20
BR:日本ゼオン(株)製のBR1220(未変性BR、シス含量:96質量%)
カーボンブラック:三菱化学(株)製のダイアブラックI(ASTM No.N220、N2SA:114m2/g、DBP:114ml/100g、平均粒子径:22nm)
シリカ:エボニックデグサ社製のウルトラシルVN3(N2SA:175m2/g、平均一次粒子径:15nm)
シランカップリング剤:エボニックデグサ社製のSi75(ビス(3−トリエトキシシリルプロピル)ジスルフィド)
微粒子カーボンブラック:三菱化学(株)製のダイアブラック(平均粒子径:19nm)
卵殻粉1:グリーンテクノ社製のSQ−130(平均粒子径:130μm)
卵殻粉2:グリーンテクノ社製のSQ−50(平均粒子径:50μm)
卵殻粉3:グリーンテクノ社製のSQ−10(平均粒子径:10μm)
テルペンレジン:ヤスハラケミカル(株)製のPX1150N(ポリテルペン樹脂)
ウェットレジン:アリゾナケミカル社製のSYLVATRAXX4401
ワックス:大内新興化学工業(株)製のサンノックN
老化防止剤:住友化学(株)製のアンチゲン6C(N−(1,3−ジメチルブチル)−N’−フェニル−p−フェニレンジアミン)
オイル:(株)ジャパンエナジー製のプロセスX−140(アロマオイル)
ステアリン酸:日油(株)製のステアリン酸「椿」
酸化亜鉛:三井金属鉱業(株)製の亜鉛華1号
硫黄:軽井沢硫黄(株)製の粉末硫黄
加硫促進剤:大内新興化学工業(株)製のノクセラーCZ(N−シクロヘキシル−2−ベンゾチアゾリルスルフェンアミド)
表1に示す配合処方にしたがい、1.7Lの密閉型バンバリーミキサーを用いて、硫黄および加硫促進剤以外の薬品を排出温度170℃になるまで5分間混練りし、混練物を得た。さらに、得られた混練物を前記バンバリーミキサーにより、排出温度150℃で4分間、再度混練りした(リミル)。次に、2軸オープンロールを用いて、得られた混練物に硫黄および加硫促進剤を添加し、4分間、105℃になるまで練り込み、未加硫ゴム組成物を得た。得られた未加硫ゴム組成物を170℃で12分間プレス加硫することで、試験用ゴム組成物を作製した。
ドライブ軸に試験用タイヤを装着した車両を、表所路面に停止した状態から発進させ、時速10kmに達した時の走行距離を測定した。結果は、指数で示し、指数が大きいほど低温氷上性能に優れることを示す。指数は次の式で求めた。
(低温氷上性能指数)=(比較例1の時速10kmに達した走行距離)/(各配合例の時速10kmに達した走行距離)×100
各試験用タイヤを車両(国産FF2000cc)の全輪に装着し、走行距離8000km後のタイヤトレッド部の溝深さを測定し、タイヤ溝深さが1mm減るときの走行距離を求めた。結果は指数で表し、指数が大きいほど耐摩耗性が良好であることを示す。指数は次の式で求めた。
(耐摩耗性能指数)=(各配合例のタイヤ溝が1mm減るときの走行距離)/(比較例1のタイヤ溝が1mm減るときの走行距離)×100
Claims (7)
- ゴム成分、平均粒子径が120μm以上の卵殻粉および平均粒子径が19nm以下のカーボンブラックを含有するトレッド用ゴム組成物であって、
さらに、ゴム成分100質量部に対して、軟化剤5〜30質量部を含有し、
前記軟化剤が、粘着樹脂を含有するトレッド用ゴム組成物。 - 前記粘着樹脂が、テルペン樹脂を含有する、請求項1記載のトレッド用ゴム組成物。
- 前記粘着樹脂が、スチレン樹脂を含有する、請求項1または2記載のトレッド用ゴム組成物。
- 前記軟化剤が、アロマ系オイルを含有する、請求項1〜3のいずれか1項に記載のトレッド用ゴム組成物。
- 前記アロマ系オイルの含有量が、ゴム成分100質量部に対して、9〜19質量部である、請求項4記載のトレッド用ゴム組成物。
- さらに、ゴム成分100質量部に対して、シリカ5〜200質量部を含有する、請求項1〜5のいずれか1項に記載のトレッド用ゴム組成物。
- 請求項1〜6のいずれか1項に記載のトレッド用ゴム組成物により構成されたトレッドを有するタイヤ。
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