シリカ粒子充てんイソプレンゴムの力学特性におよぼすメルカプト基含有シランカップリング剤による表面処理の影響 Mechanical Properties of Silica Particles-Filled Isoprene Rubber : Effect of Surface Treatment by Silane Coupling Agent Containing Mercapto Group

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The surface treatment of spherical silica particles with Silane coupling agent (SCA) having mercapto group was carried out. The treated silica particles were incorporated with polyisoprene, and then vulcanized. Effects of loading amount and alkoxy group number of SCA on the stress-strain curve of the filled composite were investigated. For this purpose, the SCAs with dialkoxy and trialkoxy structures were used. The loading amount of SCA on the silica surface was varied from one to thirteen times of the amount required for monolayer coverage. The stress increased by the SCA-treatment of silica, and it was higher in the dialkoxy structure than in the trialkoxy structure. There was no significant influence of loading amount on the stress for the trialkoxy structure. The stress was influenced strongly by the loading amount for the dialkoxy structure, and the maximum stress was observed at four times of the loading amount required for monolayer coverage. The stress had the good relation with the crosslinking density of silica-filled isoprene rubber measured by a swelling test. It was found that the reinforcement effect by the SCA treatment of silica is affected strongly both by the entanglement of siloxane chain formed by the condensation of SCA and isoprene rubber matrix and the crosslinking reaction between mercapto group of silane and isoprene rubber at the interfacial region.

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  • 日本ゴム協會誌  

    日本ゴム協會誌 81(11), 454-459, 2008-11-15 

    THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN

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各種コード

  • NII論文ID(NAID)
    10021875208
  • NII書誌ID(NCID)
    AN00189720
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    0029022X
  • NDL 記事登録ID
    9719851
  • NDL 雑誌分類
    ZP17(科学技術--化学・化学工業--高分子化学・高分子化学工業--ゴム・プラスチックス)
  • NDL 請求記号
    Z17-125
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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