High modulus pitch-based carbon fiber and method for...

Details High modulus pitch-based carbon fiber and method for... High modulus pitch-based carbon fiber and method for...

D - Textiles, Paper

01

F

18/583, 18/6

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

Patent

CA 1314365

ABSTRACT OF THE DISCLOSURE A method is disclosed for producing extremely high modulus carbon fibers by carbonization at a substantially lower temperature than in conventional methods, for example, at about 2500°C. This is made possible by selectively stabilizing only an outer surface layer portion of a carbonaceous pitch-based fiber comprised mainly of optically anisotropic components, while retaining the inner portion of the fiber in a non- stabilized state and without damage to the crystallinity thereof.

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