Raman spectrum of modified PAN-based carbon fibers during graphitization
Article first published online: 7 DEC 1998
Copyright © 1996 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 59, Issue 4, pages 577–580, 24 January 1996
How to Cite
Ko, T.-H. (1996), Raman spectrum of modified PAN-based carbon fibers during graphitization. J. Appl. Polym. Sci., 59: 577–580. doi: 10.1002/(SICI)1097-4628(19960124)59:4<577::AID-APP2>3.0.CO;2-Q
- Issue published online: 7 DEC 1998
- Article first published online: 7 DEC 1998
- Manuscript Accepted: 7 JUN 1995
- Manuscript Received: 24 OCT 1994
Graphite fibers were developed from polyacrylonitrile (PAN) fibers which were modified with potassium permanganate. After the transitional temperature, the formation of graphite structures commenced, the crystals increased in thickness, and the preferred orientation of the fiber crystals increased. The Raman specific absorption peak of noncrystalline carbon layers (1360 cm−1) weakened with the increase in the graphitization temperature, whereas the degree of graphitization rose. The results of this analysis indicate that manganese has the effect of catalyzing graphitization, thus increasing the mechanical properties of the graphite fibers. © 1996 John Wiley & Sons, Inc.