4895712 Process for producing carbon fiber and graphite fiber

✍ Scribed by Kikuji Komine; Hisao Kato; Tsutomu Naito; Takashi Hino; Hiroyuki Kuroda

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 114 KB
• Volume: 28
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(90)90348-3

✦ Synopsis

assigned to Petoca Ltd A method for producing high strength, high modulus carbon fibers having a modulus of elasticity of 75 tonf/mm2 or more and a tensile strength of 250 kgf~mm2 or more is provided. This method comprises graphitizing mesophasepitch-based carbon fibers at a temperature of 2600 degrees C. or more for several seconds or for several minutes while stretching said fibers with a stretching ratio which satisifies specified relations.