Processes for preparing milled graphite fibers

Details Processes for preparing milled graphite fibers Processes for preparing milled graphite fibers

D - Textiles, Paper

01

F

D01F 9/12 (2006.01) D01F 9/145 (2006.01)

Patent

CA 2159432

Disclosed is a process for preparing milled graphite fibers in which the amount of metallic components contained in the milled carbon fibers before graphitizing is limited to not more than 100/1,000,000 in terms of a ratio by weight. Also disclosed is a process for preparing milled graphite fibers in which the amount of metallic components contained in the milled carbon fibers before graphitizing except metallic components originally contained in the fibers themselves is limited to not more than 50/1,000,000 in terms of a ratio by weight. According to these processes, there can be obtained milled graphite fibers whose surfaces are inert, which suffer few longitudinal crackings and which are almost free from occurrence of particulate substances comprising agglomerated or bonded fibers.

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