Carbon letters

Korean Carbon Society (한국탄소학회)
권호 표지

Improvement of CF/ABS Composite Properties by Anodic Oxidation of Pitch based C-type Carbon Fiber

  • Yang, Xiao Ping (Institute of Carbon Fiber and Composites, Beijing University of Chemical Technology) ;
  • Wang, Cheng Zhong (Institute of Carbon Fiber and Composites, Beijing University of Chemical Technology) ;
  • Yu, Yun Hua (Institute of Carbon Fiber and Composites, Beijing University of Chemical Technology) ;
  • Ryu, Seung-Kon (Dept. of Chem. Eng., Chungnam National Univ.)
  • Received : 2002.03.23
  • Accepted : 2002.04.29
  • Published : 2002.06.30
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Abstract

The surface treatment of C-type isotropic pitch-based carbon fiber was carried out by anodic oxidation in 5 wt% $NH_4NO_3$ electrolyte. The changes of fiber surface and carbon fiber/ABS resin composites were characterized by SEM, XPS and mechanical properties test. The oxygen functional groups on the surface, such as hydroxyl (-C-OH), carboxyl (-COOH) groups etc., increased after oxidation. Tensile strength, flexural strength and modulus of carbon fiber/ABS composites were also enhanced. However, the impact strength decreased with the improvement of the surface adhesion between CF and matrix.

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