▎ 摘　　要

NOVELTY - High heat-conducting insulating radiating fin comprises a thermally conductive layer and a thermally conductive insulating layer connected to the thermally conductive layer. The thermally conductive layer is a graphene thermally conductive and heat-dissipating film. The thermally conductive insulating layer is formed by coating an insulating thermally conductive coating. The graphene heat-conducting heat-dissipating film includes 35-45 pts. wt. 4,4'-oxydiphthalic anhydride, 32-43 pts. wt. 4',4'-diaminodiphenyl ether, 120-130 pts. wt. N-methyl-2-pyrrolidone, 5-8 pts. wt. hexagonal boron nitride, 20-30 pts. wt. graphene, and 1-2 pts. wt. coupling agent. The insulating and thermally conductive coating includes 20-30 pts. wt. insulation and thermal conductivity agent, 1-1.5 pts. wt. ethylene-ethyl acrylate copolymer, and 30-40 pts. wt. diluent. The insulating and heat-conducting agent is prepared from methylphenyl silicone oil and insulating and heat-conducting fillers. USE - The high heat-conducting insulating radiating fin is useful for energy battery in mobile phone, flat computer and layer of heat-conducting radiating film. ADVANTAGE - The high heat-conducting insulating radiating fin has excellent insulating performance and good radiating effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a high heat-conducting insulating radiating fin for energy battery comprising providing 1-2 pts. wt. coupling agent, 5-8 pts. wt. hexagonal boron nitride, 20-30 pts. wt. graphene and 120-130 pts. wt. N-methyl-2-pyrrolidone, shaking for 5-10 minutes to obtain mixture A, providing 35-45 pts. wt. 4,4'-oxydiphthalic anhydride and 32-43 pts. wt. 4,4'-diaminodiphenyl ether, mixing with mixture A evenly, placing it in an airtight container, introducing nitrogen, heating up to 50-65degrees Celsius, stirring and reacting for 3-5 hours to form a film, heating up to 70-80degrees Celsius, reacting for 6-10 hours, and cooling to obtain a graphene film, carbonizing the graphene film at a carbonization temperature of 1200-1300degrees Celsius, for 10-18 hours, cooling, carrying out graphitization at a graphitization temperature of 2500-3200degrees Celsius for 17-20 hours, cooling and rolling to obtain a graphene thermally conductive and heat-dissipating film, and providing 20-30 pts. wt. insulating and thermally conductive agent, 1-1.5 pts. wt. ethylene-ethyl acrylate copolymer and 30-40 pts. wt. a diluent, and mixing them evenly to obtain an insulating and thermally conductive coating, coating the insulating and heat-conducting paint on one side of the graphene heat-conducting heat-dissipating film, heating and curing.