| abstract |
(57) [Summary] [PROBLEMS] When a raw material film becomes thick, gas generated from the inside of the film causes the film to be ragged, and excellent film-like graphite cannot be obtained. SOLUTION: 100 μm-thick polybaraphenylene 1.3.4- containing 3% by weight of calcium stearate. The oxadiazole film (POD) was heated to 1000 ° C. at a rate of 10 ° C./min in nitrogen gas using an electric furnace, and kept at 1000 ° C. for 1 hour to perform preliminary heat treatment. next, The obtained carbonized film is set inside a graphite cylinder so that it can be freely stretched and contracted, and is 3000 together with the graphite cylinder at a rate of 20 ° C./min using an ultra-high temperature furnace. Heated to ° C. The graphitized film obtained from the filler-containing raw material was in a uniform foamed state. next, Depending on the sample, the obtained film was subjected to a rolling treatment by further passing between two rollers. The rolling process resulted in a flexible and tough film. |