热处理有机聚合物螺旋纤维制备螺旋炭纤维及其表征

Preparation and characterization of helical carbon fiber by heat treatment of organic helical fibers

在400～800℃、氩气气氛下对有机聚合物螺旋纤维进行热处理制备螺旋炭纤维,采用SEM、XRD、FT-IR和热分析等手段对其微观形貌和结构组成进行了研究。结果表明,在上述条件下热处理有机聚合物螺旋纤维,其螺旋形貌基本保持不变,而化学成分却发生了变化;随着热处理温度升高,有机螺旋纤维逐渐转变为以石墨结构为主的螺旋炭纤维。

This paper focused on the preparation of helical carbon fibers by heat treatment of organic helical fibers in argon atmosphere at the temperatures of 400-800℃. The morphology and composition of the helical carbon fibers were characterized by SEM, XRD, FT-IR and thermal analyses. The results show that the helical morphology of the fibers remains unchanged by heat treatment of organic helical fibers under such conditions, while the chemical composition has changed. Organic helical fibers gradually change into carbon fibers based on graphitie structure when the temperature of the heat treatment increases.