4397831 Production of carbon fibers from acrylonitrile based fibers

✍ Scribed by Kazuhisa Saito; Hiroyasu Ogawa

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 91 KB
• Volume: 22
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(84)90545-1

✦ Synopsis

A method for producing carbon fibers exhibiting excellent adhesive properties to resins and having high strength and heat-oxidation resistance, comprising electrically treating high strength carbon fiber in an aqueous solution of a sulfuric acid salt under conditions such that the current density is from about 0.05 to 0.5 A/m2 and the product of current density, voltage, and processing time is from about 0.02 to 8 A-Vmin/m2, while continuously moving the carbon fiber as an anode in the aqueous solution.