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用白色导电TiO_2熔融造粒制备导电母粒,通过熔融纺丝技术制备共混型导电纤维和三叶复合型导电纤维。采用SEM、XRD和TG对2种导电纤维结构和性能进行表征。结果表明:导电TiO_2质量分数基本相同情况下,三叶复合型导电纤维的体积电阻率比共混型导电纤维的低2个数量级,导电性能明显优于共混型导电纤维,且力学性能得到改善;三叶复合型导电纤维表面光滑,摩擦系数上升较小,利于后序纺织加工。
Conductive masterbatches were prepared by melt-spinning white conductive TiO_2, and blend-type conductive fibers and three-leaf composite conductive fibers were prepared by melt spinning. The structure and properties of two kinds of conductive fibers were characterized by SEM, XRD and TG. The results show that the volume resistivity of the three-leaf composite conductive fibers is two orders of magnitude lower than that of the blended conductive fibers under the same conductive TiO 2 mass fraction, and the electrical conductivity is obviously better than that of the blended conductive fibers and the mechanical properties are improved ; Clover composite conductive fiber surface is smooth, small increase in the friction coefficient, which will help post-order textile processing.