通过静电纺丝技术制备了聚碳酸酯/多壁碳纳米管(PC/MWCNTs)复合纤维,首先探究了静电纺丝制备聚碳酸酯(PC)纤维的最佳工艺参数,研究了纺丝液浓度、纺丝电压、接收板距离对PC纤维的形貌与热稳定性、导热性能及吸附性能的影响。研究结果表明,纺丝液浓度17%,纺丝电压18kV,接收板距离12cm是PC纤维静电纺丝的最佳参数。加入MWCNTs后,纤维直径增大;TG测试表明,MWCNTs一定程度上提高了复合纤维的热稳定性;导热系数测试表明,随着MWCNTs含量的增加,复合纤维的导热系数随之提高;吸附实验表明,MWCNTs的添加对于纤维吸附MB染料起到促进作用,其促进作用随MWCNTs含量的增加而提高。
Composite fibers of polycarbonate/multiwall carbon nanotubes (PC/MWCNTs) were prepared by electrospinning.The optimal process parameters for the preparation of PC fiber were investigated,then the effects of spinning solution concentration,spinning voltage and receiving plate distance on the morphology,thermal stability,thermal conductivity and adsorption properties were discussed.The results showed that the optimal process parameters were 17% spinning solution,18kV spinning voltage and 12cm distance of receiving plate.The fiber diameter increased with the addition of MWCNTs.TG test revealed that MWCNTs enabled to improve,to some extent,the thermal stability of composite fibers.The thermal conductivity test inhabited that the thermal conductivity of composite fibers grown up with the addition of MWCNTs.The addition of MWCNTs could also promote the adsorption of Mb dye by fibers,and the adsorption efficiency was enhanced with the increase of MWCNTs content.
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基金资助
常州市应用基础研究计划项目(CJ20180052)
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