MWCNTs/PVA-co-PE纳米纤维膜导电性能的研究  

STUDY ON ELECTRICAL CONDUCTIVITY OF MWCNTs/PVA-co-PE NANOFIBERS MEMBRANES

作　　者：李沐芳 郭启浩[2] 梅涛[2] 王凯[2] 赵青华[2] 

机构地区：[1]佛山市维晨科技有限公司,佛山528200 [2]武汉纺织大学材料科学与工程学院,武汉430200

出　　处：《离子交换与吸附》2016年第3期272-279,共8页Ion Exchange and Adsorption

基　　金：2014年佛山市南海区"南海人才计划"项目资助

摘　　要：通过原位自组装法制备MWCNTs/PVA-co-PE复合材料,将此复合材料与纤维素酯共混后,利用热塑性聚合物熔融共混相分离法制备了MWCNTs/PVA-co-PE复合纳米纤维。通过SEM和TEM分析表征了MWCNTs/PVA-co-PE复合纳米纤维的形态、结构以及多壁碳纳米管在纳米纤维中的分布状态;研究了多壁碳纳米管添加量对MWCNTs/PVA-co-PE复合纳米纤维导电性能的影响。结果表明,当多壁碳纳米管的添加量大于6%时,MWCNTs/PVA-co-PE复合材料的表面电阻会显著下降;提高MWCNTs的添加量会使MWCNTs/PVA-co-PE复合纳米纤维的表面电阻稍微下降,但是效果不大,这可能是由于MWCNTs在纳米纤维内部不能形成良好的导电通道。The composites of multi-walled carbon nanotubes （MWCNTs）/poly（vinyl alcohol-co-ethylene） （PVA-co-PE） were prepared by in-situ polymerization. The composites were then blended with cellulose acetate butyrate （CAB）, the MWCNTs/PVA-co-PE nanofibers were prepared by melt blending and phase separation of the （MWCNTs/PVA-co-PE）/CAB blends. The morphology of MWCNTs/PVA-co-PE nanofibers and the distribution of MWCNTs in PVA-co-PE were analyzed by SEM and TEM. The effect of mass fraction of MWCNTs on surface resistance of MWCNTs/PVA-co-PE nanofibers was studied. The results showed that when mass fraction of MWCNTs was 6wt%, the surface resistance of MWCNTs/PVA-co-PE composite decreased obviously. However, with the increase of mass fraction of MWCNTs, the surface resistance of MWCNTs/PVA-co-PE nanofiber decreased less obviously, which may be caused by discontinuous distribution of MWCNTs in PVA-co-PE.

关 键 词：MWCNTS PVA-co-PE 复合纳米纤维 导电 

分 类 号：TQ342.4[化学工程—化纤工业] TQ342.83