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J. Korean Ceram. Soc. > Volume 35(6); 1998 > Article
Journal of the Korean Ceramic Society 1998;35(6): 603.
Carbon 화이버-폴리머 복합체의 전기적 특성
이재연, 최경만
포항공과대학교 재료금속공학과
Electrical Conductivity of Carbon Fiber-Polymer Composite
The composites of insulating polymer filled with conducting carbon-fiber were fabricated by molding press method. To understand the fiber aspect-ratio dependence of electrical conductivity the aspect ratio was varied from 4 to 10 The percolation thresholds of transition from the insulator to the conductor de-creased as the fiber aspect ratio increased. The percolation threshold of fiber-segregated composite in this study was smaller than that of fiber-random composite shown in other study. When the electrical con-ductivity curves were fitted by general effective medium equation morphological variable(t) decreased as the fiber aspect-ratio increased.
Key words: Conductivity, Percolation, Composite, Carbon, Polymer, Aspect-ratio, Fiber
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