METHOD FOR PRODUCING GRAPHITE FILM

摘要

A method for producing a graphite film having high thermal diffusivity, wherein the method for producing a graphite film is characterized in that a polyimide film having birefringence of 0.100 or higher and a thickness of 34-42 μm, the polyimide film being obtained using an acid dianhydride component containing 70 mol% or more PMDA and a diamine component containing 70 mol% or more ODA, or a carbonized film obtained by carbonizing this polyimide film, is heat treated at 2400°C or higher.