Method for producing graphite fiber

Details Method for producing graphite fiber Method for producing graphite fiber

1990-10-22

1992-12-01

Kunemund, Robert

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

4234471, 4234472, 4234474, 4234476, 423460, 264292, C01B 3104

Patent

active

051679450

ABSTRACT:
A method for producing graphite fiber comprising graphitizing carbon fiber having a strength of 500 kgf/mm.sup.2 or more and a modulus of elasticity of from 27,000 to 33,000 kgf/mm.sup.2, and having at least on the surface of the fibers, from 0.2 to 2% by weight of an epoxy resin as a sizing agent, from 0.005 to 0.10% by weight of silicon and 0.005 to 0.02% by weight of phosphorus based on the weight of carbon fiber having said epoxy resin, silicon and phosphorus.

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