碳纤维增强酚醛树脂/石墨复合材料双极板的低温热模压试验研究

介绍了国外制备树脂/石墨复合材料双极板的研究结果.研究了低温热模压成型工艺制备酚醛树脂/石墨复合材料双极板,结果表明:酚醛树脂含量为15wt%时,复合材料的导电性能满足双极板的要求,但力学性能偏低.提出了碳纤维增强的解决方案,研究了碳纤维表面处理方法以及碳纤维含量对复合材料导电性能与力学性能的影响.得到对碳纤维进行液相氧化处理,碳纤维含量3wt%是综合性能较好的一种试验方案.采用低温热模压工艺制备低成本酚醛树脂/石墨复合材料双极板,双极板材料的性能突破必将促进燃料电池的商业化发展.

Experimental Research On Pressure Molding Formation for Carbon Fiber Reinforced PF Resin/Graphite Composite Bipolar Plate

Foreign researching results on resin/graphite composite bipolar plate were reviewed in this article.One kind of PF resin/graphite composite was obtained by low temperature and hot pressure molding formation.As PF resin content is 15wt%,the conducting property can meet the bipolar plate demand,but the mechanical property is lower.Research was done on carbon fiber reinforcing composite.Influence of carbon fiber surface treatment and its content on composite property was analyzed.A better schedule was got by carbon fiber liquid-phase oxidative treatment and 3wt% content.By low temperature and hot pressure molding formation,the breakdown on PF resin/graphite composite property will active the industrialization of PEMFC surely.