Abstract
PAN-based carbon fibers were treated by a direct oxyfluorination method to study the chemical surface composition and electrokinetic behavior of the fibers. The physicochemical properties of the fibers were investigated by using a photoelectron spectroscopy (XPS) and zeta (ζ)-potential. As a result, the surface functional groups, including C-O, C=O, HO-C=O, and C-Fx after oxyfluorination, were formed on the carbon fiber surfaces. And the time dependence of the ζ-potential of oxyfluorinated carbon fibers reflected the surface bonding state of the obtained fiber materials, due to the dissociation of C-Fx groups. These results could be explained by the modification of chemical composition and the formation of physical bonding on the fiber surfaces, which could be attributed to the oxyfluorination.
Original language | English |
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Pages (from-to) | 13100-13105 |
Number of pages | 6 |
Journal | Journal of Physical Chemistry B |
Volume | 107 |
Issue number | 47 |
DOIs | |
State | Published - 27 Nov 2003 |
Externally published | Yes |