Improvement in the mechanical properties of polyacrylonitrile (PAN)-based carbon fibers after fluorination

Authors
Mathur, RB Gupta, V Bahl, OP Tressaud, A Flandrois, S
Citation
Rb. Mathur et al., Improvement in the mechanical properties of polyacrylonitrile (PAN)-based carbon fibers after fluorination, SYNTH METAL, 114(2), 2000, pp. 197-200
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779 → ACNP
Volume
114
Issue
2
Year of publication
2000
Pages
197 - 200
Database
ISI
SICI code
0379-6779(20000801)114:2<197:IITMPO>2.0.ZU;2-J
Abstract
Intercalation of fluorine in polyacrylonitrile (PAN)-based carbon fibers (H TT similar to 1400 degrees C) was carried out in the presence of hydrogen f luoride as an additive. The study revealed that there is no definite stage formation in the fluorinated compounds, rather fluorine is trapped in the d efects or diffused in to graphene layers and form covalent C-F bond at the surface of the fibers. Mechanical properties improve for lower concentratio ns of fluorine into the fibers (up F/C similar to 0.04%). (C) 2000 Elsevier Science S.A. All rights reserved.