反応誘発型相分解による耐衝撃性シアネートエステルアロイ Toughened Cyanate Ester Alloys via Reaction-induced Phase Separation

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抄録

Numerous attempts to toughen thermosets like epoxies by incorporation of thermoplastics like PES or PEI have been made. Recently, we found that cyanate ester (CE) /soluble polyimide (PI) system can be a tough alloy with excellent heat resistance. Structure development during the curing reaction in a binary mixture of CE and soluble PI was investigated by light scattering. In the early stage of curing, the binary blend was a single-phase mixture. As the cure reaction proceeded, phase separation took place via the spinodal decomposition induced by the increase in the molecular weight of CE. This was supported by the characteristic change in light scattering profile with curing time. We also found that a ternary system, CE/epoxy/soluble PI system, render tough materials. In the ternary system, structure formation proceeded also by the reaction-induced spinodal decomposition. By incorporating epoxy, the miscibility with soluble PI was enhanced, so that the periodic distance in the two-phase structure was reduced to attain higher fracture toughness. The two-phase structure and fracture toughness in the ternary system was also affected by epoxy content and curing temperature.

収録刊行物

  • 日本複合材料学会誌 = Journal of the Japan Society for Composite Materials

    日本複合材料学会誌 = Journal of the Japan Society for Composite Materials 24(2), 69-74, 1998-03-15

    JAPAN SOCIETY FOR COMPOSITE MATERIALS

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各種コード

  • NII論文ID(NAID)
    10002465439
  • NII書誌ID(NCID)
    AN00196748
  • 本文言語コード
    JPN
  • 資料種別
    NOT
  • ISSN
    03852563
  • NDL 記事登録ID
    4445852
  • NDL 雑誌分類
    ZM16(科学技術--科学技術一般--工業材料・材料試験)
  • NDL 請求記号
    Z14-655
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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