Method for producing graphite film and method for producing carbonized film
AssigneeKaneka Corporation
InventorsYusuke Ohta, Takashi Inada, Makoto Mishiro, Yasushi Nishikawa
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Abstract
A graphite film with fewer wrinkles and/or undulations is obtained providing two or more stages of heating space and carrying out continuous baking. Especially when a cooling space is provided between each of the heating spaces and another, a graphite film can be obtained which is excellent in flatness and has a high thermal diffusivity.
Claims12
A method for producing a graphite film, comprising:
- a continuous carbonization step that includes subjecting a polymer film to two or more heating spaces each of which has a temperature that falls within a range of not lower than 500° C. to not higher than 900° C., so as to obtain a carbonized film;
- and
- a graphitization step of heating the carbonized film at a temperature of not lower than 2400° C. to obtain a graphite film.
A method for producing a carbonized film, comprising a continuous carbonization step that includes subjecting a polymer film to two or more heating spaces each of which has a temperature that falls within a range of not lower than 500° C. to not higher than 900° C., so as to obtain a carbonized film.
Dependencies are inferred from the claim text.