| 초록 |
The invention relates to a method for producing a graphite film, and more particularly, to a method for producing a graphite film having excellent heat dissipation properties with excellent processability. We designed new graphite films derived from polyimide films containing multiple ratio of diamine and dianhydride. As the method of producing the graphite film, a dried precursor for a graphite film is placed in a furnace, and carbonized by raising the temperature of the furnace up to 1200 °C using nitrogen gas. Then the furnace is cooled and the carbonized precursor is moved for graphitization and graphitization proceeds at 2700 °C. Finally, the graphitized film produces a final graphite film through a rolling process. The resulting graphite film is flexible and has excellent thermal conductivity. |
