JP6933068B2 - スチールコード被覆用ゴム組成物およびタイヤ - Google Patents
スチールコード被覆用ゴム組成物およびタイヤ Download PDFInfo
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- JP6933068B2 JP6933068B2 JP2017179109A JP2017179109A JP6933068B2 JP 6933068 B2 JP6933068 B2 JP 6933068B2 JP 2017179109 A JP2017179109 A JP 2017179109A JP 2017179109 A JP2017179109 A JP 2017179109A JP 6933068 B2 JP6933068 B2 JP 6933068B2
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- zinc
- fatty acid
- rubber composition
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- 229920001971 elastomer Polymers 0.000 title claims description 92
- 239000005060 rubber Substances 0.000 title claims description 92
- 239000000203 mixture Substances 0.000 title claims description 73
- 229910000831 Steel Inorganic materials 0.000 title claims description 25
- 239000010959 steel Substances 0.000 title claims description 25
- 239000011248 coating agent Substances 0.000 title claims description 17
- 238000000576 coating method Methods 0.000 title claims description 17
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 72
- 239000000194 fatty acid Substances 0.000 claims description 72
- 229930195729 fatty acid Natural products 0.000 claims description 72
- 150000004665 fatty acids Chemical class 0.000 claims description 53
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 47
- 125000004432 carbon atom Chemical group C* 0.000 claims description 37
- -1 fatty acid cobalt salt Chemical class 0.000 claims description 33
- 239000011701 zinc Substances 0.000 claims description 33
- 229910052725 zinc Inorganic materials 0.000 claims description 29
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 26
- 239000000377 silicon dioxide Substances 0.000 claims description 23
- 238000002844 melting Methods 0.000 claims description 19
- 230000008018 melting Effects 0.000 claims description 19
- 229910017052 cobalt Inorganic materials 0.000 claims description 9
- 239000010941 cobalt Substances 0.000 claims description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 9
- LPEBYPDZMWMCLZ-CVBJKYQLSA-L zinc;(z)-octadec-9-enoate Chemical compound [Zn+2].CCCCCCCC\C=C/CCCCCCCC([O-])=O.CCCCCCCC\C=C/CCCCCCCC([O-])=O LPEBYPDZMWMCLZ-CVBJKYQLSA-L 0.000 claims description 7
- 229940098697 zinc laurate Drugs 0.000 claims description 6
- GPYYEEJOMCKTPR-UHFFFAOYSA-L zinc;dodecanoate Chemical compound [Zn+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O GPYYEEJOMCKTPR-UHFFFAOYSA-L 0.000 claims description 6
- ZSFPOQOIBOOWCR-UHFFFAOYSA-N 2-tert-butylbenzoic acid;zinc Chemical compound [Zn].CC(C)(C)C1=CC=CC=C1C(O)=O ZSFPOQOIBOOWCR-UHFFFAOYSA-N 0.000 claims 2
- 244000062793 Sorghum vulgare Species 0.000 claims 1
- 235000019713 millet Nutrition 0.000 claims 1
- 239000011347 resin Substances 0.000 description 30
- 229920005989 resin Polymers 0.000 description 30
- 239000005062 Polybutadiene Substances 0.000 description 25
- 229920002857 polybutadiene Polymers 0.000 description 25
- JDLYKQWJXAQNNS-UHFFFAOYSA-L zinc;dibenzoate Chemical compound [Zn+2].[O-]C(=O)C1=CC=CC=C1.[O-]C(=O)C1=CC=CC=C1 JDLYKQWJXAQNNS-UHFFFAOYSA-L 0.000 description 22
- 238000004073 vulcanization Methods 0.000 description 17
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 16
- 229910052761 rare earth metal Inorganic materials 0.000 description 16
- 239000003795 chemical substances by application Substances 0.000 description 15
- 150000001875 compounds Chemical class 0.000 description 15
- LYDRKKWPKKEMNZ-UHFFFAOYSA-N tert-butyl benzoate Chemical compound CC(C)(C)OC(=O)C1=CC=CC=C1 LYDRKKWPKKEMNZ-UHFFFAOYSA-N 0.000 description 15
- 229910052717 sulfur Inorganic materials 0.000 description 12
- 235000021355 Stearic acid Nutrition 0.000 description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 11
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 11
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 11
- 239000008117 stearic acid Substances 0.000 description 11
- 239000011593 sulfur Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 9
- 239000000446 fuel Substances 0.000 description 9
- 229920003048 styrene butadiene rubber Polymers 0.000 description 9
- 244000043261 Hevea brasiliensis Species 0.000 description 8
- 238000004132 cross linking Methods 0.000 description 8
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 8
- 229920003052 natural elastomer Polymers 0.000 description 8
- 229920001194 natural rubber Polymers 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 235000019198 oils Nutrition 0.000 description 8
- 239000005011 phenolic resin Substances 0.000 description 8
- 238000007747 plating Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 239000011787 zinc oxide Substances 0.000 description 8
- 239000006087 Silane Coupling Agent Substances 0.000 description 7
- 239000002174 Styrene-butadiene Substances 0.000 description 7
- JQALNNOQTGZTJZ-UHFFFAOYSA-N [[4,6-bis[bis(methoxymethyl)amino]-1,3,5-triazin-2-yl]-(methoxymethyl)amino]methanol Chemical compound COCN(CO)C1=NC(N(COC)COC)=NC(N(COC)COC)=N1 JQALNNOQTGZTJZ-UHFFFAOYSA-N 0.000 description 7
- 239000006229 carbon black Substances 0.000 description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- 230000003712 anti-aging effect Effects 0.000 description 6
- 150000002910 rare earth metals Chemical class 0.000 description 6
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 5
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 5
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 5
- 239000005642 Oleic acid Substances 0.000 description 5
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 5
- AMFIJXSMYBKJQV-UHFFFAOYSA-L cobalt(2+);octadecanoate Chemical compound [Co+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AMFIJXSMYBKJQV-UHFFFAOYSA-L 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 5
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 5
- 229920002554 vinyl polymer Polymers 0.000 description 5
- 150000005207 1,3-dihydroxybenzenes Chemical class 0.000 description 4
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 4
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 4
- 235000021314 Palmitic acid Nutrition 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- 229930003836 cresol Natural products 0.000 description 4
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 4
- 150000002989 phenols Chemical class 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 4
- 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 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- BJSBGAIKEORPFG-UHFFFAOYSA-N [[6-amino-1,2,3,4-tetramethoxy-4-(methoxyamino)-1,3,5-triazin-2-yl]-methoxyamino]methanol Chemical compound CONC1(N(C(N(C(=N1)N)OC)(N(CO)OC)OC)OC)OC BJSBGAIKEORPFG-UHFFFAOYSA-N 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 150000001896 cresols Chemical class 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 150000002603 lanthanum Chemical class 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000012763 reinforcing filler Substances 0.000 description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 3
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 2
- 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
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000004438 BET method Methods 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 235000019492 Cashew oil Nutrition 0.000 description 2
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- 239000002879 Lewis base Substances 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 101100496858 Mus musculus Colec12 gene Proteins 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000004902 Softening Agent Substances 0.000 description 2
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- 239000000853 adhesive Substances 0.000 description 2
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- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 description 2
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- 238000010528 free radical solution polymerization reaction Methods 0.000 description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
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- 230000005764 inhibitory process Effects 0.000 description 2
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- 239000007788 liquid Substances 0.000 description 2
- 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
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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
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- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- DGXAGETVRDOQFP-UHFFFAOYSA-N 2,6-dihydroxybenzaldehyde Chemical compound OC1=CC=CC(O)=C1C=O DGXAGETVRDOQFP-UHFFFAOYSA-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
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
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- 239000004115 Sodium Silicate Substances 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
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- MBHRHUJRKGNOKX-UHFFFAOYSA-N [(4,6-diamino-1,3,5-triazin-2-yl)amino]methanol Chemical compound NC1=NC(N)=NC(NCO)=N1 MBHRHUJRKGNOKX-UHFFFAOYSA-N 0.000 description 1
- RKMWQISSUBTIRA-UHFFFAOYSA-N [Co].C(CCCCCC(C)(C)C)(=O)O.[B] Chemical compound [Co].C(CCCCCC(C)(C)C)(=O)O.[B] RKMWQISSUBTIRA-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000002152 alkylating effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 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
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010775 animal oil Substances 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
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- TYESNCFSJHPNCR-UHFFFAOYSA-N benzoic acid;zinc Chemical group [Zn].OC(=O)C1=CC=CC=C1.OC(=O)C1=CC=CC=C1 TYESNCFSJHPNCR-UHFFFAOYSA-N 0.000 description 1
- VEEBLJYPXXIVEB-UHFFFAOYSA-N benzoic acid;zinc Chemical compound [Zn].OC(=O)C1=CC=CC=C1 VEEBLJYPXXIVEB-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- RTACIUYXLGWTAE-UHFFFAOYSA-N buta-1,3-diene;2-methylbuta-1,3-diene;styrene Chemical compound C=CC=C.CC(=C)C=C.C=CC1=CC=CC=C1 RTACIUYXLGWTAE-UHFFFAOYSA-N 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- KDMCQAXHWIEEDE-UHFFFAOYSA-L cobalt(2+);7,7-dimethyloctanoate Chemical compound [Co+2].CC(C)(C)CCCCCC([O-])=O.CC(C)(C)CCCCCC([O-])=O KDMCQAXHWIEEDE-UHFFFAOYSA-L 0.000 description 1
- 235000018597 common camellia Nutrition 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration 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
- 229920003244 diene elastomer Polymers 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 235000021388 linseed oil Nutrition 0.000 description 1
- 239000000944 linseed oil Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- VILGDADBAQFRJE-UHFFFAOYSA-N n,n-bis(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine Chemical compound C1=CC=C2SC(SN(SC=3SC4=CC=CC=C4N=3)C(C)(C)C)=NC2=C1 VILGDADBAQFRJE-UHFFFAOYSA-N 0.000 description 1
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical compound CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 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
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 229960002969 oleic acid Drugs 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 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
- 150000003606 tin compounds Chemical class 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 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
- 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
- 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
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229940012185 zinc palmitate Drugs 0.000 description 1
- 229940057977 zinc stearate Drugs 0.000 description 1
- JDWKHPKWCUBDHC-UHFFFAOYSA-L zinc;2-tert-butylbenzoate Chemical group [Zn+2].CC(C)(C)C1=CC=CC=C1C([O-])=O.CC(C)(C)C1=CC=CC=C1C([O-])=O JDWKHPKWCUBDHC-UHFFFAOYSA-L 0.000 description 1
- GJAPSKMAVXDBIU-UHFFFAOYSA-L zinc;hexadecanoate Chemical compound [Zn+2].CCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCC([O-])=O GJAPSKMAVXDBIU-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0041—Compositions of the carcass layers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C2001/0066—Compositions of the belt layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/0007—Reinforcements made of metallic elements, e.g. cords, yarns, filaments or fibres made from metal
- B60C2009/0014—Surface treatments of steel cords
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/0007—Reinforcements made of metallic elements, e.g. cords, yarns, filaments or fibres made from metal
- B60C2009/0021—Coating rubbers for steel cords
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
Description
NR1:タイ東部製のTSR20(炭素数16〜22の脂肪酸含有率:1.2質量%)
NR2:タイ東北部製のTSR20(炭素数16〜22の脂肪酸含有率:1.0質量%)
NR3:タイ南部製のTSR20(炭素数16〜22の脂肪酸含有率:0.7質量%)
NR4:インドネシア製のTSR20(炭素数16〜22の脂肪酸含有率:0.3質量%)
IR:日本ゼオン(株)製のNipol IR2200(炭素数16〜22の脂肪酸含有率:0質量%)
カーボンブラック:三菱化学(株)製のN326(N2SA:78m2/g)
シリカ:エボニックデグサ社製のULTRASIL VN3(N2SA:175m2/g)
安息香酸亜鉛:日油(株)製の安息香酸亜鉛(融点:193℃)
t−ブチル安息香酸亜鉛:日油(株)製のt−ブチル安息香酸亜鉛(融点:215℃)
混合脂肪酸亜鉛:ストラクトール社製のEF44(オレイン酸亜鉛、パルミチン酸亜鉛、ステアリン酸亜鉛の混合物、融点:101℃)
ラウリン酸亜鉛:日油(株)製のラウリン酸亜鉛(融点:131℃)
オレイン酸亜鉛:日油(株)製のオレイン酸亜鉛(融点:87℃)
混合物1〜6:後述の混合物の調製で得られた各混合物
加硫活性剤:ストラクトール社製のアクチベータ73A
ステアリン酸コバルト:大日本インキ化学工業(株)製のCost−F(コバルト含有量:9.5質量%、ステアリン酸は炭素数18の脂肪酸)
ホウ素ネオデカン酸コバルト:大日本インキ化学工業(株)製のDicnate NBC−II(コバルト含有量:22.5質量%、ネオデカン酸は炭素数10の脂肪酸)
ステアリン酸:日本油脂(株)製のステアリン酸 椿
オレイン酸:日本油脂(株)製のオレイン酸
パルミチン酸:日本油脂(株)製のパルミチン酸
オイル:H&R社製のVivatec500(TDAEオイル、Tg:−58℃)
変性フェノール樹脂:住友ベークライト(株)製のPR12686(カシューオイル変性フェノール樹脂、軟化点:100℃)
HMMPME:住友化学工業(株)製のスミカノール507AP(変性エーテル化メチロールメラミン樹脂(ヘキサメチロールメラミンペンタメチルエーテル(HMMPME)の部分縮合物)、シリカおよびオイルを合計35質量%含有)
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)
酸化亜鉛:三井金属鉱業(株)製の酸化亜鉛2種
HTS:フレキシス社製のDURALINK HTS(1,6−ヘキサメチレン−ジチオ硫酸ナトリウム・二水和物)
硫黄:日本乾溜工業(株)製のセイミサルファー(オイル10%含有)
加硫促進剤1:フレキシス(株)製のサントキュアーTBSI(N−tert−ブチル−2−ベンゾチアゾリルスルフェンイミド、TBSI)
加硫促進剤2:大内新興化学工業(株)製のノクセラーDZ(N,N−ジシクロヘキシル−2−ベンゾチアゾリルスルフェンアミド、DCBS)
表1に示す化合物が入ったフラスコをシリコンオイルバスに浸漬し、両化合物が溶融するまで昇温しながら電子スターラーで撹拌し、取り出し、冷却・すり鉢で粉砕し、均一な混合物1〜6(溶融混合物)を得た。また、表1に各混合物の透明融点を示す。なおこの透明融点はJIS−K0064:1992「化学製品の融点及び溶融範囲測定方法」に従って測定される値である。
表2〜5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160℃になるまで5分間混練りし、混練物を得た。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。また、得られた未加硫ゴム組成物を用いてスチールコードを被覆し、150℃で30分間プレス加硫し、剥離試験用サンプルを得た。得られた試験用ゴム組成物および剥離試験用サンプルについて下記の評価を行った。結果を表2〜5に示す。
岩本製作所(株)製の粘弾性スペクトロメーターを用いて、70℃、初期歪10%、動歪み2%、周波数10Hzの条件下で、各試験用ゴム組成物の複素弾性率(E*)を測定した。E*が大きいほど剛性が高く、操縦安定性に優れることを示す。なお、複素弾性率は9.0〜11.0を性能目標値とする。
JIS K6251に準じ、3号ダンベルを用いて引張り試験を実施し、試験片の破断時伸び(EB%)を測定した。破断時伸びの数値が高いほど、ゴム組成物の破断強度および耐亀裂成長性が良好であることを示す。なお、破断時伸びは350以上を性能目標値とする。
剥離試験用サンプルを用いて接着試験を行い、剥離後のゴム被覆率(スチールコードとゴム間を剥離したときの剥離面のゴムの覆われている割合)を測定し、5点満点で表示した。5点は全面が覆われ、0点は全く覆われていない状態を示す。評点の大きい方がスチールコードとの接着性が良好であることを示す。なお、接着試験は4点以上を性能目標値とする。
Claims (6)
- ゴム成分100質量部に対し、
ビス(t−ブチル安息香酸)亜鉛を0.12質量部以上、
脂肪酸コバルト塩をコバルト元素に換算して0.03〜0.30質量部、
炭素数16〜22の脂肪酸および脂肪酸コバルト塩に由来する炭素数16〜22の脂肪酸を合計で0.5質量部未満含有するスチールコード被覆用ゴム組成物。 - 前記ビス(t−ブチル安息香酸)亜鉛を脂肪酸亜鉛との混合物として含有し、
前記混合物の融点が150℃以下である請求項1記載のスチールコード被覆用ゴム組成物。 - 前記脂肪酸亜鉛がラウリン酸亜鉛および/またはオレイン酸亜鉛を含む請求項2記載のスチールコード被覆用ゴム組成物。
- さらに、ゴム成分100質量部に対し、湿式合成シリカを0.5〜30質量部含有する請求項1〜3のいずれか1項に記載のスチールコード被覆用ゴム組成物。
- 炭素数16〜22の脂肪酸および脂肪酸コバルト塩に由来する炭素数16〜22の脂肪酸の合計含有量が0.2質量部以下である請求項1〜4のいずれか1項に記載のスチールコード被覆用ゴム組成物。
- 請求項1〜5のいずれか1項に記載のスチールコード被覆用ゴム組成物を用いて得られたブレーカーおよび/またはカーカスを有するタイヤ。
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