▎ 摘　　要

NOVELTY - Producing insulating high thermal conductivity graphene film, comprises (i) flattening a base film, soaking in a degreasing agent, stirring for 5-10 minutes, and placing in a activating liquid to activate for 30-60 minutes to obtain the activated base film; (ii) placing the activated base film in a vapour deposition chamber, taking diborane and disilane as precursor raw material, and ammonia and nitrogen as carrier, and introducing argon gas for deposition on activated base film surface at 800-1100degreesC for 20-30 minutes under pressure 8-15 Pa and cooling to obtain insulated base film; and (iii) carbonizing and graphitizing the insulated base film and rolling. USE - The method is useful for producing insulating high thermal conductivity graphene film. ADVANTAGE - The graphene film has thickness of 30-50 mum, and has good radiating effect and good insulating performance.