METHOD FOR MANUFACTURING CARBONACEOUS FILM AND METHOD FOR MANUFACTURING GRAPHITE FILM

摘要

There has been a problem that wrinkles easily occur on a carbonaceous film produced by the use of a continuous production method and on a graphite film obtained by heat-treating the carbonaceous film. In the present invention, heating treatment is carried out on a polymeric film while applying pressure to the polymeric film in the film thickness direction with the use of a continuous carbonization apparatus. This makes it possible to obtain a carbonaceous film and a graphite film in which wrinkling is reduced.

主权项

1. A method for manufacturing a carbonaceous film with use of a continuous carbonization apparatus, said method comprising the step of:
applying pressure to a polymeric film and/or a raw material carbonaceous film, of which the carbonaceous film is to be made, in a film thickness direction at a temperature profile at least partially falling within a range of 550° C. or higher and 800° C. or lower while the polymeric film and/or the raw material carbonaceous film is being transported, the polymeric film and/or the raw material carbonaceous film being transported while force, which is caused by friction due to pressurization on the polymeric film and/or the raw material carbonaceous film in the film thickness direction, is being applied to the polymeric film and/or the raw material carbonaceous film.