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选用导热系数较高的无机填料石墨对高密度聚乙烯（HDPE）进行填充改性；采用偶联剂和磨盘型力化学反应器对石墨进行表面处理，提高石墨与聚合物基体的界面相互作用；用自行研制的升温速率测定装置测试材料的导热性能，并研究材料的导热机理；用SEM观察复合材料的微观形态．实验结果表明：经偶联剂处理后，石墨在HDPE中均匀分布；测试试样的上表面温度随时间的变化可用三次多项式T=A0+A1t+A2t2＋A3t3拟会；HDPE／石墨复合材料升温速率随石墨含量增加而增大；石墨含量为35％的复合材料最大升温速率为HDPE的1.75倍．
High-density polyethylene (HDPE) was filled and modified with inorganic filler graphite with high thermal conductivity. The surface of graphite was treated with coupling agent and disc-type force chemical reactor to improve the interfacial interaction between graphite and polymer matrix. The self-developed heating rate measuring device was used to test the thermal conductivity of the material. The thermal conductivity of the material was also studied. The microstructure of the composites was observed by SEM. The experimental results show that the graphite distributes homogeneously in HDPE after the coupling agent treatment. The temperature of the upper surface of the test specimen changes with time can be described by the cubic polynomial T = A0 + A1t + A2t2 + A3t3. The heating rate of HDPE / graphite composites Graphite content increases and increases; the maximum rate of heating of the composite material with graphite content of 35% is 1.75 times that of HDPE.