Surface treatment process for carbon fibers

Details Surface treatment process for carbon fibers Surface treatment process for carbon fibers

1988-05-27

1989-06-13

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204 28, 204131, 204132, C25F 500

Patent

active

048390062

ABSTRACT:
A process for surface treatment of carbon fiber of which modulus is not lower than 30 ton/mm.sup.2, in two steps, which comprises the steps of subjecting a carbon fiber as an anode to a first electrolytic treatment in an aqueous solution of inorganic acidic electrolyte or of neutral salt electrolyte, and then subjecting the treated fiber to a second electrolytic treatment in an aqueous solution of ammonium salt of carbonic acid or of inorganic alkaline electrolyte.

REFERENCES:
patent: 4729820 (1988-03-01), Mitchell

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