采用静电纺丝技术制备不同质量比的PLA/TCMC静电共混纺丝膜,并通过FTIR、TG、DSC及拉伸测试进行表征.同时将质量比为60:40的静电共混纺丝膜应用于溶液中Cu2+去除研究,考察了初始浓度、流动时间、使用次数等对静电共混纺丝膜去除溶液中Cu2+的能力.结果表明:PLA与TCMC的质量比为60:40时,纺丝才能得到的纤维直径比较均匀,纤维形貌较好、具有较好的热稳定性和拉伸强度；静电共混纺丝膜能一定程度地去除溶液中的铜离子,其去除率最高可达13.77％;去除率受初始浓度的影响,当初始浓度为40mg/L时去除率最高；随着处理时间的增大,使用次数的增加,膜对溶液的去除率逐渐降低,膜的使用效果逐渐减弱.
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