Temperature Dependence of Dynamic Viscoelasticities of Fatigued Fiber-Reinforced Nylon 6 Plastics

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  • 疲労したガラス繊維強化ナイロン6プラスチックの動的粘弾性の温度依存性
  • ヒロウ シタ ガラス センイ キョウカ ナイロン 6 プラスチック ノ ドウテキネンダンセイ ノ オンド イゾンセイ

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The temperature dependence of dynamic viscoelasticities of Nylon 6 and fiber -reinforced Nylon 6 fatigued under planebending were compared with those of unfatigued specimens. Specimens were untreated (equilibriummoisture content at atmospheric humidity), or dried and or heat-treated.<BR>1) In case of Nylon 6, it was found that the fatigue mechanism of the dried specimen was different from thatof the untreated specimen becaue of the difference of temperature depend ence curves of dynamic and lossmoduli.<BR>2) In case of fiber-reinforced Nylon 6, the effect of repeated bending on dynamic viscoelastic properties wasless than tht of Nylon 6, and also the environmental effects, such as temperature and humidity, on their viscoelastic properties were little.<BR>3) A proper heat treatment is effective to decrease the change of dyna mic viscoelasticities caused by fatigue.

Journal

  • Kobunshi Kagaku

    Kobunshi Kagaku 28 (316), 659-666,707, 1971

    The Society of Polymer Science, Japan

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