Internal Stress Induced During Cure of Epoxy Regin

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  • エポキシ樹脂の硬化収縮に伴う応力の発生
  • エポキシ ジュシ ノ コウカ シュウシュク ニ トモナウ オウリョク ノ ハッセイ

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Description

To solve the fundamental problems for volume change and internal stress during cure, the volume change, the glass transition temperature, the expansion coefficient and the young's modulus were measured during cure.<BR>These value changed according to the 1st. order reaction.<BR>The following experimental equation is found:<BR>Were:β: ratio of volume shrinkage at curing and cooling.β1: volume shrinkage with chemical reaction for cured resin.β2: Tq. of cured resin. k: reaction velocity.β0 expansion coefficient of liq. epoxy resin.β'; expansion coefficient below Tq.β∞: expansion coefficient above Tq. C1: curing temperature. C2: room temperature (arbitrary temperature bellow Tq). t: reaction time.

Journal

  • Kobunshi Kagaku

    Kobunshi Kagaku 28 (319), 884-887,940, 1971

    The Society of Polymer Science, Japan

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