Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
권호 표지

A Study on the Polyamide Based Thermoplastic Composites for Fuel Cell Separators

연료전지 분리판용 폴리아미드계 복합체의 특성 연구

  • 이광용 (한국타이어 중앙연구소) ;
  • 김정헌 (한국타이어 중앙연구소) ;
  • 류승훈 (경희대학교 환경응용화학대학)
  • Published : 2008.12.31

Abstract

In this study polyamide 6,6 based thermoplastic composite with graphite and carbon black had been examined feasibility for separators of fuel cell which requires good mechanical and electrical properties with gas impermeability. The effects of molding pressure and filler content on the properties of the composite were investigated. Maximum flexural modulus was obtained about 80 wt% graphite, while electrical conductivity increased with graphite content. Flexural strength increased with molding pressure and tended to level-off from $400\;kgf/cm^2$. Molding pressure did not affect the electrical conductivity. The addition of carbon black enhanced the electrical conductivity of the composite. Mechanical properties were decreased under acidic condition.

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