Properties of Carbon Nanofibers Prepared from Polyacrylonitrile/ poly (methyl methacrylate) Blend
The polyacrylonitrile(PAN)/poly (methyl methacrylate)(PMMA) blend fibers were prepared by wet-spinning technique and carbonized over the temperature range of 400-1000℃ in nitrogen atmosphere. After carbonization of the blend fibers, the PMMA component removed and the PAN component left in the form of carbon nanofibers. Morphology of the carbon nanofibers were investigated via scanning electron microscopy (SEM), and the carbonization behavior of the fibers were examined via x-ray diffraction (XRD), Raman microspectrometry. The optimal condition made carbon fibers with great L/D ratio and diameter less than 200 nm. XRD and Raman spectra shows that the PAN/PMMA blend fibers treated at 600℃ produced some graphite crystallite.
PAN PMMA Blend Carbonization Carbon nanofibers
Pan Wei Chen Yan He Xiaowei
Institute of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou 450007, P. R. China
国际会议
青岛
英文
353-356
2009-10-09（万方平台首次上网日期，不代表论文的发表时间）