Surface analysis of plasma grafted carbon fiber |
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Authors: | Xuezhong Zhang Tianyu Wang |
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Institution: | Department of Applied Chemistry, Harbin Institute of Technology, P.O. Box 410, Harbin 150001, PR China |
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Abstract: | The surface characteristics of carbon fibers were studied by X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and wetting measurements. The surface of carbon fiber was modified by means of plasma graft silsesquioxane. The oxygen/carbon and silicon/carbon ratio increased rapidly after treatments. Fitting the C 1s, O 1s, and Si 2p spectra demonstrated that new photopeaks were emerged, which were indicated C-Si, Si-O groups, respectively. The degree of surface roughness and the wettability of carbon fiber surface were both increased by plasma graft silsesquioxane. The results may shed some light on the design of the appropriate surface structure, which could react with resin, and the manufacture of the carbon fiber reinforced composites. |
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Keywords: | Carbon fiber Surface treatment Plasma XPS AFM |
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