Fundamental Study on FRP Using Glass Fiber Treated by Low Temperature Plasma.

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  • ガラス繊維の表面処理に低温プラズマ処理を利用したＦＲＰの基礎的研究
  • ガラス センイ ノ ヒョウメン ショリ ニ テイオン プラズマ ショリ オ リ

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An investigation was performed on the interface control of FRP using glass fiber treated by low temperature plasma. The treatment apparatus was developed in order to control plasma coating onto plain woven glass cloth. Three-point flexural tests of glass fiber reinforced epoxy composites were done by an Instron testing machine in order to examine the effect of the plasma treatment on the composite properties. The main results obtained were as follows:<br>(1) NH3 gas plasma treatment was applied to improve the surface properties of the fiber: The contact angle between distilled water and surface of glass slide, substituted for the glass fiber to measure the contact angle, was decreased by this treatment. And the bending strength of FRP prepared with NH3 plasma treated fiber became higher than the one with the untreated fiber.<br>(2) The bending strength of FRP varied as a function of plasma parameters such as the treatment power and the treatment pressure.<br>(3) The improved adhesion state of the epoxy resin onto the glass fiber after NH3 gas plasma treatment was revealed by the SEM observation of the tensile fracture surface. It can be concluded from these results that the interfacial adhesion and the mechanical interlocking were increased by this process.

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