▎ 摘　　要

NOVELTY - Graphene film material having specified thickness comprises 100 wt.% graphene oxide dispersion liquid. USE - Used as a graphene film material having specified thickness. ADVANTAGE - The method: avoids the loss of thermal conductivity between layers to the greatest extent; reduces the production difficulty and cost of the coating process; utilizes cheap and easily available binder industrial raw materials; and is convenient and suitable for industrial production, and has excellent affinity with graphene oxide. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing graphene film material having specified thickness. The method utilizes solvent, binder and solute.