Abstract Owing to overheating of electronic components during work, more and more attention has been paid to the research of high thermal conductivity polymer composites in recent years. However, traditional way to improve the thermal conductivity of polymer is not ideal. Here, a high-performance polyline-folded graphite paper (PFGP)/epoxy resin (EP) composite was prepared by using polyline-folded graphite paper and liquid epoxy resin as fillers and matrix, respectively. Its out-of-plane thermal conductivity and the improvement efficiency per 1 wt% are as high as 24.19 Wm −1 K −1 and 349%, respectively. Most importantly, this approach is very simple and can be industrialized compared to traditional polymer compounding methods. The thermodynamic finite element analysis in this work simulated the thermal conductivity of PFGP/EP composite at different mass fractions, which can verify the accuracy of the experimental values. These results indicate that the PFGP/EP composites have great prospects in the field of thermal interface materials.

中文翻译：

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折线折叠石墨纸优化的高导热聚合物复合材料

摘要 由于电子元件在工作过程中过热，近年来高导热聚合物复合材料的研究越来越受到重视。然而，传统的提高聚合物热导率的方法并不理想。在这里，以折线折叠石墨纸和液态环氧树脂分别作为填料和基体，制备了高性能折线折叠石墨纸（PFGP）/环氧树脂（EP）复合材料。其面外热导率和每1wt%的改进效率分别高达24.19 Wm -1 K -1 和349%。最重要的是，与传统的聚合物复合方法相比，这种方法非常简单，可以工业化。本工作中的热力学有限元分析模拟了不同质量分数下PFGP/EP复合材料的热导率，可以验证实验值的准确性。这些结果表明PFGP/EP复合材料在热界面材料领域具有广阔的前景。