한국섬유공학회:학술대회논문집 (Proceedings of the Korean Fiber Society Conference)
- 한국섬유공학회 1996년도 추계 학술발표회
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- Pages.117-123
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- 1996
Preparation of Activated Carbon Fiber from Chemically Modified Coal-tar Pitch
- Lee, Dong-Jun (Department of Textile Engineering Chonnam National University) ;
- Yang, Gap-Seung (Department of Textile Engineering Chonnam National University) ;
- Ryu, S.K. (Department of Chemical Engineering Chungnam National University) ;
- Kim, Y.J. (Department of Textile Engineering Chonnam National University)
- 발행 : 1996.10.01
초록
Cabon fiber of general purpose was prepared from coal tar pitch modified with 10% benzoquinine(BQ) at 380C for 3 hours. Such a modified pitch raised the softening of the pitch from 85C to 271C at the yield of 40%. The modified pitch was spun smoothly at a rate of 480m/min into a fiber of 20um diameter. The fiber was stabilized stepwise at 236C (5C/min) and 312C (1C/min) for 3 hours each. Both carbonized and graphitized fibers exhibited tensile strength of 570MPa which appears large enough as a precursor for active carbon fiber. The activated carbon fiber prepared exhibited relatively high surface area of 2062m2/g at 76% burn-off and rather narrow distribution pore size of 20A.
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