Abstract: The latest approaches to filled epoxy composites with high thermal conductivity were reviewed. The mechanism of thermal conduction, new type of thermal conductive fillers and the construction of the effective heat conducting network, as well as the design of interface layer between fillers and epoxy matrix were analyzed. Besides, the key techniques and hot research topics of high thermally conductive epoxy composites were summarized.

Key words: epoxy resin, high thermal conductivity, thermal conductive fillers, interface layer, thermally conductive network