▎ 摘　　要

NOVELTY - Preparing graphene heat dissipation coating involves (a) sequentially adding absolute ethanol, NMP and silane coupling agent to graphene, mechanically stirring for 10-60 hours, heating and ultrasonically stirring for 1-4 hours. The polyvinylenediaminetetrahydro-diol resin and acrylic resin is added to NMP, and mechanically stirring, graphene is added to the modified PVDF solution, mechanically stirring to obtain a mixed solution. The wetting agent is added to the mixed solution to defoam and defoamer to obtain graphene heat-retardant coating. USE - Method for preparing graphene for radiating coating (claimed). ADVANTAGE - The method has simple process, low energy consumption, low cost, and has good stability, good dispersibility of graphite.