中文摘要：

为了提高石蜡-膨胀石墨相变储能材料的热导率,以膨胀石墨压缩块（CEG）为基体,分别以低含量酚醛树脂浸渍和原位合成的方式制备高导热骨架,合成出膨胀石墨-树脂-石蜡相变储能材料。结果表明：原位聚合比浸渍可以获得更高热导率的膨胀石墨骨架,热导率由纯膨胀石墨压缩块的65.6 W·m^-1·K^-1达到68.9 W·m^-1·K^-1（105%）,由其制备的储能材料热导率达到了膨胀石墨压缩块的106%（69.5 W·m^-1·K^-1）,使储能材料热导率高于石蜡和膨胀石墨骨架,说明原位聚合可以强化膨胀石墨导热网络从而提高其热导率。

英文摘要：

In order to enhance the thermal conductivity of paraffln/expanded-graphite as a phase change material, compressed expanded graphite （CEG） is made firstly as the matrix with low content of phenolic resin impregnation and with in-situ polymerization of phenol formaldehyde resin, respectively, to form the high thermal conductivity material skeleton. The results show that the higher thermal conductivity of skeleton can be gained from resin in situ polymerization than impregnation. The thermal conductivity of the skeleton is as high as 105% of the CEG block （from 65.6 W·m^-1·K^-1 to 68.9 W·m^-1·K^-1）, with the phase change materials 106% （69.5 W·m^-1·K^-1）, which makes the thermal transport capacity of phase change materials stronger than the paraffin and the CEG skeleton. The results show that the in-situ polymerization can enhance the thermal conductivity of the expanded graphite.