▎ 摘　　要

NOVELTY - Preparing graphene thermal interface material involves preparing graphene oxide composite thermal conductive filler, which is graphene oxide composite hollow glass microspheres/polymer hollow beads or a mixture of hollow glass microspheres and graphene oxide aerogel microspheres. The graphene oxide composite thermal conductive filler is added to the reducing agent, and the reduced graphene oxide composite thermal conductive filler is obtained after reduction and drying. 100 pts. wt. vinyl silicone oil, 1-200 pts. wt. reduced graphene oxide composite thermally conductive filler, 0.01-0.5 pts. wt. catalyst, 0.01-0.5 pts. wt. inhibitor and 1-25 pts. wt. hydrogen-containing silicone oil are stirred and mixed in a double planetary mixer. After rolling and curing, a graphene thermal interface material with a density of 0.9-1.2g/cm3 and a thermal conductivity of 3-4W/mK is obtained. USE - Method for preparing graphene thermal interface material. ADVANTAGE - The method enables to prepare graphene thermal interface material, which reduces the density of the product while making the product have excellent thermal conductivity.