电化学表面处理对粘胶基碳纤维热稳定性的影响  

Influences of the Electrochemical Surface Oxidation on the Thermal Stability of the Rayon-based Carbon Fibers

作　　者：黄强[1] 黄永秋[1] 郑成斐[1] 吴药镜[2] 潘鼎[2] 

机构地区：[1]东华大学材料科学与工程学院,上海20051 [2]东华大学纤维材料改性国家重点实验室,上海20051

出　　处：《东华大学学报（自然科学版）》2002年第6期118-121,共4页Journal of Donghua University(Natural Science)

摘　　要：通过热失重分析研究了在不同电化学表面处理条件下粘胶基碳纤维的热稳定性,实验表明未经表面处理的碳纤维在复合材料中的最高使用温度大约为300℃,而表面处理过的粘胶基碳纤维在复合材料中的最高使用温度下降了。因而在选择电化学表面处理条件时,既要考虑使表面性能提高,也要使纤维的热稳定性没有大的下降。In this paper the influences of the electrochemical surface oxidation under various conditions on the thermal stability of the rayon-based carbon fibers have been studied via thermal-gravimetric analysis.It is proved that the upper limit of the application temperature for the untreated rayon-based carbon fiber reinforced composite is about 300℃, which would be reduced further due to the electrochemical surface oxidation treatment. It is then concluded that the conditions used in the electrochemical surface oxidation treatment should be suitably chosen via considering both the great improvements in the surface properties and the less reducing in the thermal stability of the fibers.

关 键 词：热稳定性 粘胶基碳纤维 热失重分析 电化学氧化处理 

分 类 号：TQ342.74[化学工程—化纤工业]