Process for producing carbon fibers

Details Process for producing carbon fibers Process for producing carbon fibers

1995-01-17

1997-07-01

Bos, Steven

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

4234476, D01F 915

Patent

active

056435479

ABSTRACT:
A process for preparing mesophase pitch based carbon fibers is disclosed, wherein mesophase pitch fibers are gas-phase nitrated in an atmosphere of an oxygen-containing gas such as air or an inert gas such as nitrogen containing 0.1 to 50% by volume of NO.sub.2 at a low temperature of not higher than 100.degree. C. for a long period of time. The carbon fibers thus obtained are excellent in both mechanical strength and elastic modulus and have well-balanced physical properties.

REFERENCES:
patent: 4788050 (1988-11-01), Hirose et al.

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