ポリウレタンエラストマーの最近の動向 Recent Trends of Polyurethane Elastomers

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Polyurethane elastomers have been widely used as industrial materials and others because of their outstanding mechanical strength and abrasion resistance. Polyurethanes are composed of the three main raw materials; isocyanate, chain extender and polyol. There are a number of combinations of these raw materials. Consequently, polyurethane elastomers exhibit various characteristics according to the kinds of these components.<br>Polyurethane elastmers will discolor after exposure to UV light in general. In recent years, the discoloration of polyurethane has been improved by using an aliphatic diisocyanate. Generally, polyesher-based polyurethane elastmers are weak at heat aging resistance, and polyester-based polyurethane exhibits poor hydrolysis resistance. Although only the use of polycarbonatepolyol as soft-segment gives excellent properties of both heat aging and hydrolysis resistance.<br>In addition, characteristic polyurethanes have been reported various types such as water absorbing, biodegradation and shape memorization. Novel characteristic polyurethanes will be developed by various composite techniques.

収録刊行物

  • 日本ゴム協會誌

    日本ゴム協會誌 78(2), 85-87, 2005-02-15

    一般社団法人 日本ゴム協会

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各種コード

  • NII論文ID(NAID)
    10013811486
  • NII書誌ID(NCID)
    AN00189720
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    0029022X
  • NDL 記事登録ID
    7247019
  • 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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