Sulfonating polyethylene fibres prior to carbonization

Details Sulfonating polyethylene fibres prior to carbonization Sulfonating polyethylene fibres prior to carbonization

C - Chemistry, Metallurgy

01

B

18/8

C01B 31/02 (2006.01) D01F 9/21 (2006.01) D01F 11/06 (2006.01)

Patent

CA 1045767

PROCESS FOR PRODUCTION OF CARBON FIBER Abstract of the Disclosure A process for the production of carbon fiber, which comprises sulfonating polyethylene fiber with chlorosulfonic acid, sulfuric acid, fuming sulfuric acid or a mixture of two or more kinds thereof and carbonizing the resulting precursor fiber by heating at a temperature of 600 to 3,000°C, optionally with the fiber under tension, the treatment being carried out in an inert gas or vacuum.

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