Process for producing graphite

Details Process for producing graphite Process for producing graphite

1987-12-15

1989-10-24

Doll, John

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

423449, 423450, 423453, 252502, 252503, 252513, G01B 3104

Patent

active

048760773

ABSTRACT:
A process for producing graphite includes heat treating, in an inert gas or in vacuo, at least one polymer selected from the group consisting of a polyphenyleneoxadiazole, polybenzothiazoles, a polybenzobisthiazole, a polybenzoxazole, a polybenzobisoxazole and a polythiazole, at a temperature of at least 1600.degree. C., preferably at least 2000.degree. C., for at least 30 minutes, preferably at least 60 minutes, to convert the polymer to a highly-graphitized graphite. The process produces almost perfect graphite in any shape, such as film-shaped for large-area graphite, fibrous or powdered.

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Murakami, M. et al., "High-Quality Pyrographite Films", Applied Physics Letters, vol. 48, No. 23, pp. 1594-1596, Jun. 1986.
Murakami, M. et al., "Highly Conductive Pyropolymer and High-Quality Graphite from Polyoxadiazole", Synthetic Metals, vol. 18, 1987; pp. 509-514.

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