▎ 摘　　要

NOVELTY - The method invovles mixing polyimide resin, dispersant, solvent, graphite, and sodium chloride to form a graphite dispersion. The CNT, graphene, dispersant, polyimide resin, and solvent are mixed to form a CNT/graphene dispersion liquid. The graphite dispersion liquid is subjected to ball milling and coating into a graphite film after filtering, drying and setting. The graphite film is soaked in distilled water to remove sodium chloride to obtain a graphite film skeleton with pores. The CNT/graphene dispersion on the graphite film skeleton is coated to perform downward air extraction under the plane of the graphite film skeleton for 5 to 10 minutes, and dried, finalized, and graphitize in a nitrogen atmosphere to obtain the graphite with high thermal conductivity membrane. USE - Method for preparing graphite high heat conducting film (claimed) used in microelectronic product packaging and integrated field. ADVANTAGE - The method provides the graphite high heat-conducting film with high tensile strength, thermal conductivity, and heat conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a graphite high heat conducting film. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of a graphite high heat-conducting film. (Drawing includes non-English language text).