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Received May 28, 2002
Accepted August 13, 2002
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The Physicochemical Characteristics of Modified Carbon Fibers by Fluorination
Department of Chemical Engineering & Nanotechnology Center, Sunchon National University, Sunchon 540-742, Korea 1Advanced Research Center, Chungnam National University, Daejeon 305-764, Korea 2Department of Fine Chemical Engineering and Chemistry, Chungnam National University, Daejeon 305-764, Korea
Korean Journal of Chemical Engineering, January 2003, 20(1), 151-156(6), 10.1007/BF02697201
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Abstract
The surface of PAN-based carbon fiber was directly modified with fluorine-oxygen mixtures at room temperature. The surface characteristics of the modified fiber were determined by using X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and dynamic contact angle analyzer. The surface free energy was also calculated with the Owens-Wendt geometric mean method using water and methylene iodide contact angle. The surface of carbon fiber was changed into hydrophilicity by the formation of semicovalent C-F bond and C-O bond depending_x000D_
on reaction conditions and the surface free energy of oxyfluorinated fiber was significantly increased.
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