Effect of UV irradiation on PAN precursor fibers and stabilization process |
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| Authors: | Huiwu Yuan Yuansheng Wang Hongwei Yu Zheng Wei Bao Ge Yongjia Mei |
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| Affiliation: | YUAN Huiwu1,WANG Yuansheng1,2,YU Hongwei1,WEI Zheng1,GE Bao2,MEI Yongjia2 (1.Department of Chemistry and Material,Naval University of Engineering,Wuhan 430033,China,2.State Key Laboratory of Polymer Material Engineering,Polymer Research Institute of Sichuan University,Chengdu 610065,China) |
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| Abstract: | A low-cost rout for modification the polyacrylontrile(PAN) precursor fibers was developed.The approach involved pretreatment PAN precursor fibers with UV irradiation for various periods of time before the fibers were stabilized.The effect of UV irradiation on the chemical structure,orientation factor,density,crystallite size and morphology of the fibers in the process of stabilization was characterized by use of fourier transform infrared spectroscopy(FTIR),float-sink procedure,X-ray diffraction(XRD),scanni... |
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| Keywords: | PAN precursor fibers UV irradiation cyclization crystallite size morphology |
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