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首页> 外文期刊>Journal of Applied Polymer Science >Development of highly conductive graphite-/graphene-filled polybenzoxazine composites for bipolar plates in fuel cells
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Development of highly conductive graphite-/graphene-filled polybenzoxazine composites for bipolar plates in fuel cells

机译：在燃料电池中用于双极板的高导电石墨/石墨烯 - /石墨烯 - /石墨烯填充的聚苯噻嗪复合材料

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摘要

Superior conductive fillers reinforced polymer composites are ideal alternatives to graphitic and metallic materials in proton exchange membrane fuel cells (PEMFCs) for high thermal and electrical conductive bipolar plates. Polymer composites are known to be adversely influenced from high contact resistance thus to minimize such resistance, highly graphite-/graphene-filled polybenzoxazine (PBA) composites are developed in this work. A very low melt viscosity of benzoxazine resin with graphite loading as high as 83 wt % is used for the samples. With an addition of graphene platelet, thermal and electrical conductivities of the specimens having 75.5 wt % of graphite in a combination of 7.5 wt % of graphene are significantly enhanced to 14.5 W mK(-1) and 323 S cm(-1), respectively. Properties of highly graphite-/graphene-filled PBA composites exhibit most values exceed those requirements by the U.S. Department of Energy for PEMFCs applications. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47183.
机译：优异的导电填料增强聚合物复合材料是用于高热和导电双极板的质子交换膜燃料电池（PEMFC）中石墨和金属材料的理想替代品。已知聚合物复合材料受到高接触电阻的不利影响，因此为了使这种电阻最小化，在这项工作中开发出高石墨/石墨烯 - 填充的聚苯异种嗪（PBA）复合材料。对于样品，使用高达83wt％的石墨负载的苯并恶嗪树脂的非常低的熔体粘度。通过添加石墨烯血小板，具有75.5wt％石墨烯的标本的热量和电导率分别为7.5wt％的石墨烯，分别显着增强至14.5W mk（-1）和323秒（-1） 。高石墨/石墨烯的PBA复合材料的性质表现出大多数值超过美国能源部的这些要求.PEMFCS应用。 （c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,47183。

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