Reinforcement Effect of Composite Material Caused by Adding a Small Amount of VGCF Cabon Nanofiber

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Other Title
  • 微量のカーボンナノファイバー（ＶＧＣＦ）添加による樹脂材料の補強効果
  • ビリョウ ノ カーボンナノファイバー VGCF テンカ ニ ヨル ジュシ ザイリョウ ノ ホキョウ コウカ

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Abstract

The reinforcement effect of carbon nano fiber prepared by vapor-phase method (VGCF) was examined for various resins. The modulus of elasticity and yield stress of crystalline nylon-6 became 1.5 times and 1.6 times as large, respectively, upon addition of only 0.1 wt% VGCF. The reinforcement effect of VGCF was observed also with polypropylene. On the other hand, the reinforcement effect was not observed with non-crystalline polymers such as polystyrene and polycarbonate. An optimal mixing rule was investigated to explain the reinforcement mechanism of VGCF. A model in which fiber/matrix series and single matrices are parallely arranged best explains the experimental results. The present result is extremely important in the future design of VGCF reinforced composites. It was also found that the use of ultrasonic wave irradiation together with mechanical mixing was the best way to obtain the dispersibility of VGCF.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 63 (9), 593-600, 2006

    The Society of Polymer Science, Japan

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