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采用原位聚合法制备了聚丙烯腈(PAN)-氧化石墨烯(GO)纳米复合物,并采用静电纺丝法制备了PAN及PAN-GO纳米复合物的电纺纤维。采用扫描电镜、傅里叶变换红外光谱、X射线衍射等研究了电纺纤维在恒温热稳定化过程中表面形貌、微晶结构、化学结构的变化,结果表明:恒温热处理后,纤维表面均较为光滑,GO的引入不仅能够加快热稳定化过程中环化反应的速度,而且能显著提高环化程度。
Polyacrylonitrile (PAN) - graphene oxide (GO) nanocomposites were prepared by in-situ polymerization. Electrospun fibers of PAN and PAN-GO nanocomposites were prepared by electrospinning. The changes of surface morphology, microcrystal structure and chemical structure of electrospun fiber during thermostatic thermal stabilization were studied by scanning electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction. The results showed that after thermostatic heat treatment, The smoother, GO introduction can not only accelerate the thermal stabilization of the cyclization reaction speed, but also significantly improve the degree of cyclization.