▎ 摘　　要

NOVELTY - Preparation of graphene crosslinked network phase-change heat/conductive composite material comprises weighing graphene oxide solution, adding polyvinyl alcohol, forming graphene oxide gel, hydrothermally reacting, vacuum freeze-drying to obtain graphene crosslinked network, vacuumizing, heating phase-change material, melting phase-change material, soaking graphene crosslinked network in phase-change material, soaking, filtering excess phase-change material and cooling. USE - Method for preparing graphene crosslinked network phase-change heat/conductive composite material (claimed). ADVANTAGE - The composite material has excellent thermal conductivity and thermal stability, simple preparation method and low cost, and is suitable for large-scale production.