Mechanical Properties of Heat-Treated Natural Fibers.

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  • 加熱処理した天然繊維の力学的特性
  • カネツ ショリ シタ テンネン センイ ノ リキガクテキ トクセイ

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Tensile properties of heat-treated hemp and bamboo fibers were examined. The average tensile strengths of hemp and bamboo fibers without heat treatment are 863MPa and 516MPa, respectively. After heat treatment at 200°C for 7.2ks, both fibers show a 60 percent decrease in tensile strength. The tensile strength of hemp fiber is almost unchanged below 160°C, however it decreases drastically above this temperature. The bamboo fiber also has the same temperature dependence, but its degradation temperature decreases to 140°C. Young's moduli for both fibers are almost constant and independent of the heat treatment condition.

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