Thermal resistance measurement of 3D graphene foam/polymer composite by laser flash analysis

In this work, three-dimensional graphene foam (GF)/polydimethylsiloxane (PDMS) composite was prepared and its thermal resistance in practical application was measured by laser flash analysis (LFA). Results show that the thermal resistance of GF/PDMS composite is as small as 14 mm2 K W−1, which is only about 19% of that of commercial silver particles filled epoxy composite applied in the thermal management. In addition, the method of LFA used to measure thermal resistance is proved to be feasible and reliable by numerical simulation, which extends the functionality of LFA to meet a practical need.