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A study on the electrical and mechanical properties of PEMFC bipolar plate by thermoplastic composite injection molding process
- Source :
- Journal of the Korea Academia-Industrial cooperation Society. 12:1999-2004
- Publication Year :
- 2011
- Publisher :
- The Korea Academia-Industrial Cooperation Society, 2011.
-
Abstract
- This research aims to develop polymer composites which can be used for PEMFC bipolar plate by injection molding process. Considering the moldability and stiffness, we used LCP(Liquid crystal polymer) as base resin. In order to improve electrical conductivity and mechanical properties, we chose carbon black, and both synthetic graphite and expanded graphite. The composites with different recipe are prepared for injection molding of PEMFC bipolar plate and CAE(Computer Aided Engineering) analysis was performed to predict melt flow and fiber orientation We did successfully fabricate the ASTM specimens by injection molding, and measure the electrical conductivity of the samples by using four point probe device. We measured mechanical properties such as flexural strength, flexural modulus and Izod impact strength. Conclusively, the electrical conductivity increased with increasing additive concentration, but both flexural strength and Izod impact strength decreased due to the brittle nature of carbon-based additives.
Details
- ISSN :
- 19754701
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- Journal of the Korea Academia-Industrial cooperation Society
- Accession number :
- edsair.doi...........fd24311e5cd2f98f4b7ae16c04150d26
- Full Text :
- https://doi.org/10.5762/kais.2011.12.4.1999