Abstract Carbon fiber/poly ether ether ketone (Cf/PEEK) composites are a class of high performance, continuous fiber reinforced thermoplastic polymer materials. These composites have the potential to meet demands for self-cleaning or deicing applications in the power supply industry in cold regions. In this study, the effect of graphene on the deicing performance of Cf/PEEK composites through electro-thermal Joule heating was investigated. First, graphene/PEEK composites with varying graphene content of up to 6 wt% were fabricated and characterized. Adding up to 5 wt% graphene was found to improve the electrical conductivity, thermal conductivity, and the crystallinity of PEEK. However, at a graphene content of 6 wt%, the crystallinity and thermal conductivity of the mixture decreased, likely due to agglomeration of graphene. Next, graphene modified Cf/PEEK composites (0 and 5 wt% graphene) with resin volume fractions of 40, 50, and 60 vol% were prepared by hot pressing. Graphene was found to increase the electrical conductivity of the composites by roughly 100%, and to improve the efficiency of converting Joule heating to useful deicing energy by up to 35%.

中文翻译：

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用于电热除冰应用的石墨烯改性碳纤维/聚醚醚酮复合材料

摘要 碳纤维/聚醚醚酮（Cf/PEEK）复合材料是一类高性能、连续纤维增强的热塑性聚合物材料。这些复合材料有可能满足寒冷地区电源行业对自清洁或除冰应用的需求。在这项研究中，研究了石墨烯通过电热焦耳加热对 Cf/PEEK 复合材料除冰性能的影响。首先，制备并表征了石墨烯含量高达 6 wt% 的石墨烯/PEEK 复合材料。研究发现，添加高达 5wt% 的石墨烯可以提高 PEEK 的导电性、导热性和结晶度。然而，当石墨烯含量为 6 wt% 时，混合物的结晶度和热导率降低，这可能是由于石墨烯的团聚。下一个，通过热压制备树脂体积分数为 40、50 和 60 vol% 的石墨烯改性 Cf/PEEK 复合材料（0 和 5 wt% 石墨烯）。发现石墨烯可将复合材料的电导率提高大约 100%，并将焦耳热转化为有用的除冰能的效率提高多达 35%。