JP3947184B2 - ゴムの耐塩素劣化性向上方法 - Google Patents
ゴムの耐塩素劣化性向上方法 Download PDFInfo
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- JP3947184B2 JP3947184B2 JP2004162832A JP2004162832A JP3947184B2 JP 3947184 B2 JP3947184 B2 JP 3947184B2 JP 2004162832 A JP2004162832 A JP 2004162832A JP 2004162832 A JP2004162832 A JP 2004162832A JP 3947184 B2 JP3947184 B2 JP 3947184B2
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- Prior art keywords
- rubber
- chlorine
- water
- silica
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 229920001971 elastomer Polymers 0.000 title claims description 44
- 239000005060 rubber Substances 0.000 title claims description 44
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims description 32
- 239000000460 chlorine Substances 0.000 title claims description 32
- 229910052801 chlorine Inorganic materials 0.000 title claims description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 47
- 239000000377 silicon dioxide Substances 0.000 claims description 23
- 230000006866 deterioration Effects 0.000 claims description 13
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 6
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 5
- 239000005062 Polybutadiene Substances 0.000 claims description 5
- 229920005549 butyl rubber Polymers 0.000 claims description 5
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 5
- 229920002857 polybutadiene Polymers 0.000 claims description 5
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 31
- 239000000203 mixture Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 11
- 229920003051 synthetic elastomer Polymers 0.000 description 10
- 239000005061 synthetic rubber Substances 0.000 description 10
- 230000008859 change Effects 0.000 description 9
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000004453 electron probe microanalysis Methods 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000379 polymerizing effect Effects 0.000 description 5
- 229920002943 EPDM rubber Polymers 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000004073 vulcanization Methods 0.000 description 4
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 150000001993 dienes Chemical class 0.000 description 3
- 238000007720 emulsion polymerization reaction Methods 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000035622 drinking Effects 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000012744 reinforcing agent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 2
- PRBHEGAFLDMLAL-GQCTYLIASA-N (4e)-hexa-1,4-diene Chemical compound C\C=C\CC=C PRBHEGAFLDMLAL-GQCTYLIASA-N 0.000 description 1
- OJOWICOBYCXEKR-KRXBUXKQSA-N (5e)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(=C/C)/CC1C=C2 OJOWICOBYCXEKR-KRXBUXKQSA-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
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010538 cationic polymerization reaction Methods 0.000 description 1
- 238000012668 chain scission Methods 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- -1 ethylene, propylene Chemical group 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000015784 hyperosmotic salinity response Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010058 rubber compounding Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000010008 shearing Methods 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
- 239000002904 solvent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Description
表1に本発明における実施例と比較例の配合を示す。
表1において実施例1、2と比較例1、2では、充填剤としてシリカ(東ソー・シリカ(株)製、商品名:Nipsil)80重量部を、比較例3では充填剤としてカーボンブラックHAF(旭カーボン(株)製、商品名:旭#70)80重量部を用いた。
塩素水にイオン交換水を加えて塩素濃度を50ppmに調整し、80℃で720時間浸漬させ劣化処理を行った。
処理後の試験片について、目視観察およびSEM(走査型電子顕微鏡)による観察を行うとともに、ゴム表面近傍の硬さを高分子計器(株)製マイクロゴム硬度計を用いて測定し、JIS K 6251に基づいた引張試験を行い、JIS K 6258での計算式に基づき、硬さの変化および引張り強さ,伸び,体積,質量のそれぞれの変化率を求めた。また、EPMA(電子線マイクロアナライザー)により、試料表面近傍の塩素の吸収強度(浸透度合い)を測定した。
表3に硬さの変化および引張り強さ,伸び,体積,質量のそれぞれの変化率を、図1に試料表面に対し行ったSEM(走査型電子顕微鏡)による観察写真を、図2にEPMA(電子線マイクロアナライザー)による塩素の吸収強度(浸透度合い)測定結果を示す。
Claims (2)
- ゴム成分としての、エチレンプロピレンゴム、ブチルゴム、アクリロニトリルゴム、クロロプレンゴム、スチレンブタジエンゴムおよびブタジエンゴムよりなる群から選ばれる少なくとも1種のゴムと配合して、上記少なくとも1種のゴムの耐塩素劣化性を向上させるための、アルカリ性を有するシリカの使用。
- 上記少なくとも1種のゴム100重量部に対し、アルカリ性を有するシリカ10〜100重量部を使用する請求項1に記載の使用。
Priority Applications (1)
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JP2004162832A JP3947184B2 (ja) | 2004-06-01 | 2004-06-01 | ゴムの耐塩素劣化性向上方法 |
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JP2004162832A JP3947184B2 (ja) | 2004-06-01 | 2004-06-01 | ゴムの耐塩素劣化性向上方法 |
Publications (2)
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JP2005343942A JP2005343942A (ja) | 2005-12-15 |
JP3947184B2 true JP3947184B2 (ja) | 2007-07-18 |
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JP2004162832A Expired - Lifetime JP3947184B2 (ja) | 2004-06-01 | 2004-06-01 | ゴムの耐塩素劣化性向上方法 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007002094A (ja) * | 2005-06-23 | 2007-01-11 | Bridgestone Corp | 止水材 |
CN104927129A (zh) * | 2015-06-05 | 2015-09-23 | 广西柳州高昭贸易有限公司 | 一种轮胎翻新用胶的制备工艺 |
CN107216661B (zh) * | 2017-07-13 | 2020-03-24 | 无锡朴业橡塑有限公司 | 一种耐老化的三元乙丙橡胶组合物及其制备方法 |
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