JP6296281B2 - ゴム組成物及びそれを架橋させてなる成形品 - Google Patents
ゴム組成物及びそれを架橋させてなる成形品 Download PDFInfo
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- JP6296281B2 JP6296281B2 JP2014020994A JP2014020994A JP6296281B2 JP 6296281 B2 JP6296281 B2 JP 6296281B2 JP 2014020994 A JP2014020994 A JP 2014020994A JP 2014020994 A JP2014020994 A JP 2014020994A JP 6296281 B2 JP6296281 B2 JP 6296281B2
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- 239000005060 rubber Substances 0.000 title claims description 52
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- 238000004132 cross linking Methods 0.000 title claims description 34
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- 229920000459 Nitrile rubber Polymers 0.000 claims description 39
- 239000000377 silicon dioxide Substances 0.000 claims description 31
- 229920000768 polyamine Polymers 0.000 claims description 21
- 239000003431 cross linking reagent Substances 0.000 claims description 16
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 12
- 125000001931 aliphatic group Chemical group 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 9
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- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 2
- 150000004756 silanes Chemical class 0.000 claims 1
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- 229910000077 silane Inorganic materials 0.000 description 17
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- XLYMOEINVGRTEX-UHFFFAOYSA-N fumaric acid monoethyl ester Natural products CCOC(=O)C=CC(O)=O XLYMOEINVGRTEX-UHFFFAOYSA-N 0.000 description 2
- NKHAVTQWNUWKEO-UHFFFAOYSA-N fumaric acid monomethyl ester Natural products COC(=O)C=CC(O)=O NKHAVTQWNUWKEO-UHFFFAOYSA-N 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
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- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
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- ZJYCLOLEIIBKBW-VOTSOKGWSA-N (e)-4-(1-ethylcyclohexyl)oxy-4-oxobut-2-enoic acid Chemical compound OC(=O)/C=C/C(=O)OC1(CC)CCCCC1 ZJYCLOLEIIBKBW-VOTSOKGWSA-N 0.000 description 1
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- YIDFNBQCPVYONT-JJDSELGRSA-N C(C)/C(=C(/C(=O)O)\CC1CCCCC1)/C(=O)O.C(\C(\C)=C/C(=O)O)(=O)O Chemical compound C(C)/C(=C(/C(=O)O)\CC1CCCCC1)/C(=O)O.C(\C(\C)=C/C(=O)O)(=O)O YIDFNBQCPVYONT-JJDSELGRSA-N 0.000 description 1
- OXXKWDDWACYZCN-ZORHPWIYSA-N C(CCC)/C(=C(/C(=O)O)\C)/C(=O)O.C(\C(\C)=C/C(=O)O)(=O)O Chemical compound C(CCC)/C(=C(/C(=O)O)\C)/C(=O)O.C(\C(\C)=C/C(=O)O)(=O)O OXXKWDDWACYZCN-ZORHPWIYSA-N 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- XLYMOEINVGRTEX-ARJAWSKDSA-N Ethyl hydrogen fumarate Chemical compound CCOC(=O)\C=C/C(O)=O XLYMOEINVGRTEX-ARJAWSKDSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- FHQDWPCFSJMNCT-UHFFFAOYSA-N N(tele)-methylhistamine Chemical compound CN1C=NC(CCN)=C1 FHQDWPCFSJMNCT-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- IBVAQQYNSHJXBV-UHFFFAOYSA-N adipic acid dihydrazide Chemical compound NNC(=O)CCCCC(=O)NN IBVAQQYNSHJXBV-UHFFFAOYSA-N 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical group 0.000 description 1
- SRGBNANKQPZXFZ-UHFFFAOYSA-N aniline;butanal Chemical compound CCCC=O.NC1=CC=CC=C1 SRGBNANKQPZXFZ-UHFFFAOYSA-N 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- UTTHLMXOSUFZCQ-UHFFFAOYSA-N benzene-1,3-dicarbohydrazide Chemical compound NNC(=O)C1=CC=CC(C(=O)NN)=C1 UTTHLMXOSUFZCQ-UHFFFAOYSA-N 0.000 description 1
- UTOVMEACOLCUCK-PLNGDYQASA-N butyl maleate Chemical compound CCCCOC(=O)\C=C/C(O)=O UTOVMEACOLCUCK-PLNGDYQASA-N 0.000 description 1
- 229940117916 cinnamic aldehyde Drugs 0.000 description 1
- 238000000748 compression moulding Methods 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
- SJJCABYOVIHNPZ-UHFFFAOYSA-N cyclohexyl-dimethoxy-methylsilane Chemical compound CO[Si](C)(OC)C1CCCCC1 SJJCABYOVIHNPZ-UHFFFAOYSA-N 0.000 description 1
- ZWLIYXJBOIDXLL-UHFFFAOYSA-N decanedihydrazide Chemical compound NNC(=O)CCCCCCCCC(=O)NN ZWLIYXJBOIDXLL-UHFFFAOYSA-N 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- ZZNQQQWFKKTOSD-UHFFFAOYSA-N diethoxy(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](OCC)(OCC)C1=CC=CC=C1 ZZNQQQWFKKTOSD-UHFFFAOYSA-N 0.000 description 1
- JJQZDUKDJDQPMQ-UHFFFAOYSA-N dimethoxy(dimethyl)silane Chemical compound CO[Si](C)(C)OC JJQZDUKDJDQPMQ-UHFFFAOYSA-N 0.000 description 1
- AHUXYBVKTIBBJW-UHFFFAOYSA-N dimethoxy(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](OC)(OC)C1=CC=CC=C1 AHUXYBVKTIBBJW-UHFFFAOYSA-N 0.000 description 1
- NHYFIJRXGOQNFS-UHFFFAOYSA-N dimethoxy-bis(2-methylpropyl)silane Chemical compound CC(C)C[Si](OC)(CC(C)C)OC NHYFIJRXGOQNFS-UHFFFAOYSA-N 0.000 description 1
- VHPUZTHRFWIGAW-UHFFFAOYSA-N dimethoxy-di(propan-2-yl)silane Chemical compound CO[Si](OC)(C(C)C)C(C)C VHPUZTHRFWIGAW-UHFFFAOYSA-N 0.000 description 1
- YYLGKUPAFFKGRQ-UHFFFAOYSA-N dimethyldiethoxysilane Chemical compound CCO[Si](C)(C)OCC YYLGKUPAFFKGRQ-UHFFFAOYSA-N 0.000 description 1
- CGBYBGVMDAPUIH-ARJAWSKDSA-N dimethylmaleic acid Chemical compound OC(=O)C(/C)=C(/C)C(O)=O CGBYBGVMDAPUIH-ARJAWSKDSA-N 0.000 description 1
- IBXPYPUJPLLOIN-UHFFFAOYSA-N dimetridazole Chemical compound CC1=NC=C(N(=O)=O)N1C IBXPYPUJPLLOIN-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- SBRXLTRZCJVAPH-UHFFFAOYSA-N ethyl(trimethoxy)silane Chemical compound CC[Si](OC)(OC)OC SBRXLTRZCJVAPH-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- CZWLNMOIEMTDJY-UHFFFAOYSA-N hexyl(trimethoxy)silane Chemical compound CCCCCC[Si](OC)(OC)OC CZWLNMOIEMTDJY-UHFFFAOYSA-N 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229940018564 m-phenylenediamine Drugs 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- POPACFLNWGUDSR-UHFFFAOYSA-N methoxy(trimethyl)silane Chemical compound CO[Si](C)(C)C POPACFLNWGUDSR-UHFFFAOYSA-N 0.000 description 1
- NKHAVTQWNUWKEO-IHWYPQMZSA-N methyl hydrogen fumarate Chemical compound COC(=O)\C=C/C(O)=O NKHAVTQWNUWKEO-IHWYPQMZSA-N 0.000 description 1
- DRXHEPWCWBIQFJ-UHFFFAOYSA-N methyl(triphenoxy)silane Chemical compound C=1C=CC=CC=1O[Si](OC=1C=CC=CC=1)(C)OC1=CC=CC=C1 DRXHEPWCWBIQFJ-UHFFFAOYSA-N 0.000 description 1
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 1
- 229940074369 monoethyl fumarate Drugs 0.000 description 1
- NKHAVTQWNUWKEO-NSCUHMNNSA-N monomethyl fumarate Chemical compound COC(=O)\C=C\C(O)=O NKHAVTQWNUWKEO-NSCUHMNNSA-N 0.000 description 1
- 229940005650 monomethyl fumarate Drugs 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 1
- ALVYUZIFSCKIFP-UHFFFAOYSA-N triethoxy(2-methylpropyl)silane Chemical compound CCO[Si](CC(C)C)(OCC)OCC ALVYUZIFSCKIFP-UHFFFAOYSA-N 0.000 description 1
- WUMSTCDLAYQDNO-UHFFFAOYSA-N triethoxy(hexyl)silane Chemical compound CCCCCC[Si](OCC)(OCC)OCC WUMSTCDLAYQDNO-UHFFFAOYSA-N 0.000 description 1
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- XYJRNCYWTVGEEG-UHFFFAOYSA-N trimethoxy(2-methylpropyl)silane Chemical compound CO[Si](OC)(OC)CC(C)C XYJRNCYWTVGEEG-UHFFFAOYSA-N 0.000 description 1
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 1
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Gasket Seals (AREA)
Description
[式(1)中、R1は炭素数が1〜20の炭化水素基であり、R2は炭素数が1〜6の炭化水素基であり、nは0〜3の整数である。]
(R1)n−Si−(OR2)4−n (1)
[式(1)中、R1は炭素数が1〜20の炭化水素基であり、R2は炭素数が1〜6の炭化水素基であり、nは0〜3の整数である。]
・カルボキシル基含有水素化ニトリルゴム
日本ゼオン株式会社製「ZPT 136(Zetpol 2510)」
アクリロニトリル/1,3−ブタジエン/α,β−エチレン性不飽和ジカルボン酸モノエステル共重合体の水素添加物
(アクリロニトリル含有量35重量%、ヨウ素価12g/100g以下)
・水素化ニトリルゴム
日本ゼオン株式会社製「Zetpol 2010」
アクリロニトリル/1,3−ブタジエン共重合体の水素添加物
(アクリロニトリル含有量36重量%、ヨウ素価11g/100g)
・ポリアミン系架橋剤
ヘキサメチレンジアミンカルバメート(HDC)
デュポン社製「Diak−1」
・有機過酸化物
1,3−ビス(t−ブチルパーオキシイソプロピル)ベンゼン
化薬アクゾ株式会社製「パーカドックス14R−P」
・1,3−ジフェニルグアニジン(DPG)
大内新興化学工業株式会社製「ノクセラーD」
・N,N'−m−フェニレンビスマレイミド
住化ケムテックス株式会社製「スミファインBM」
・4,4’−ビス(α,α−ジメチルベンジル)ジフェニルアミン
大内新興化学工業株式会社製「ノクラックCD」
・2−メルカプトベンズイミダゾール亜鉛塩(ZnMBI)
大内新興化学工業株式会社製「ノクラックMBZ」
・トリメリット酸トリス(2−エチルへキシル)(TOTM)
大八化学工業株式会社製「TOTM」
・ステアリン酸
日油株式会社製「ステアリン酸 さくら」
・天然植物性ワックス
デュポン社製「VPA No.2」
・沈殿法シリカ
東ソー・シリカ株式会社製「ニップシールER」
・n−デシルトリメトキシシラン
信越化学工業株式会社製「KBM3103C」
JIS K6300−2に準拠して測定した。オープンロールで混練後の未加硫のゴムシートを試料とし、JSR株式会社製の「キュラストメーター7」を用いて測定した。測定温度200℃で5分間の加硫曲線を測定し、縦軸をトルク、横軸を時間としたグラフのトルクの最小値ML(kgf・cm)、最大値MH(kgf・cm)、MHの10%のトルクになるまでの時間t10(分)及びMHの90%のトルクになるまでの時間t90(分)を求めた。結果を表1に示す。
オープンロールで混練後の未加硫のゴムシートを用い、4個取りの金型を用いて180℃で3分間プレス加硫して、内径が25.2mmで線径が3.5mmのO−リングを成形した。この成形操作を繰り返し、型を開いたときに上側の金型に加硫後のO−リングが少なくとも1個付着する現象が発生するまでの繰り返し成形回数を求めた。その結果を以下の基準に従って評価した。
・A:30回以上
・B:10〜29回
・C:9回以下
JIS K6251に準拠して引張試験を行った。二次加硫後の厚さ2mmのシートを打ち抜いて得られた、ダンベル状3号形の試験片を用い、23℃、相対湿度50%において、引張速度500mm/分の引張速度で測定した。ここで、引張破断応力(TB)は試験片の切断時の引張強さ(MPa)である。また、破断伸び(EB)は試験片の切断時の伸び(%)である。
JIS K6253に準拠して測定した。二次加硫後の厚さ2mmのシートを3枚重ね、タイプAデュロメータを用いて、23℃、相対湿度50%において測定を行った。
二次加硫後の厚さ2mmのシートを20mm×30mmの長方形に打ち抜いて得られた試験片を、100℃の水に70時間浸漬した後の体積変化率(%)を求めた。
カルボキシル基含有水素化ニトリルゴム「ZPT136」100質量部に、ヘキサメチレンジアミンカルバメート(HDC)1.5質量部、1,3−ジフェニルグアニジン(DPG)2質量部、4,4’−ビス(α,α−ジメチルベンジル)ジフェニルアミン1.5質量部、2−メルカプトベンズイミダゾール亜鉛塩(ZnMBI)1.5質量部、トリメリット酸トリス(2−エチルへキシル)(TOTM)5質量部、ステアリン酸1質量部、天然植物性ワックス3質量部、シリカ30質量部及びn−デシルトリメトキシシラン1質量部を、オープンロールを用いて、ゴム組成物の温度を40℃として40分間混練し、未加硫ゴムシートを作製した。配合比を表1に示す。
実施例1において、n−デシルトリメトキシシランの配合量を2質量部に変更した以外は実施例1と同様にして試験を行い評価した。結果を表1に示す。
実施例1において、n−デシルトリメトキシシランを配合しなかった以外は実施例1と同様にして試験を行い評価した。結果を表1に示す。
実施例1において、カルボキシル基含有水素化ニトリルゴム「ZPT136」の代わりに、カルボキシル基を含有しない水素化ニトリルゴム「Zetpol2010」を用い、ヘキサメチレンジアミンカルバメート(HDC)の代わりに1,3−ビス(t−ブチルパーオキシイソプロピル)ベンゼン3質量部を用い、1,3−ジフェニルグアニジン(DPG)の代わりにN,N'−m−フェニレンビスマレイミド1質量部を用いた以外は実施例1と同様にして試験を行い評価した。結果を表1に示す。
比較例2において、n−デシルトリメトキシシランを配合しなかった以外は比較例2と同様にして試験を行い評価した。結果を表1に示す。
Claims (6)
- カルボキシル基又はカルボン酸無水物基を含む水素化ニトリルゴム(A)100質量部、ポリアミン系架橋剤(B)0.5〜10質量部、シリカ(C)5〜100質量部及び下記式(1)で示されるシラン化合物(D)0.1〜10質量部を含有するゴム組成物。
(R1)n−Si−(OR2)4−n (1)
[式(1)中、R1は炭素数が3〜20の脂肪族飽和炭化水素基であり、R2は炭素数が1〜6の炭化水素基であり、nは1〜3の整数である。] - 水素化ニトリルゴム(A)が、α,β−エチレン性不飽和ジカルボン酸モノエステル単量体単位を含む水素化ニトリルゴムである請求項1に記載のゴム組成物。
- ポリアミン系架橋剤(B)が、脂肪族ポリアミン系化合物である請求項1又は2に記載のゴム組成物。
- 請求項1〜3のいずれかに記載のゴム組成物を加熱して架橋させてなる成形品。
- 請求項4に記載の成形品からなるシール。
- 請求項4に記載の成形品からなるガスケット。
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