静电纺PAN纤维膜的制备及其过滤性能研究  

Preparation and filtration properties of electrospun PAN fiber membrane

作　　者：齐瑞岭 曹伟杰 陈灏 刘慧娟[1] 张显华[1] 普丹丹[1] QI Ruiling;CAO Weijie;CHEN Hao;LIU Huijuan;ZHANG Xianhua;PU Dandan(College of Textile,Henan Institute of Engineering,Zhengzhou 450007,China;College of Safety Engineering,Henan Institute of Engineering,Zhengzhou 451191,China)

机构地区：[1]河南工程学院纺织学院,河南郑州450007 [2]河南工程学院安全工程学院,河南郑州451191

出　　处：《上海纺织科技》2019年第2期49-52,共4页Shanghai Textile Science & Technology

基　　金：河南省科技攻关计划项目(172102210211);河南省教育厅科学技术研究重点项目(13B540937)

摘　　要：静电纺丝滤膜具有良好的过滤性能,但是要纺制具有可控性的过滤材料,需了解纺丝参数及溶液性能与过滤性能之间的关系。首先,利用静电纺丝法制备了静电纺PAN纳米纤维膜,研究纺丝时间和纺丝液浓度对纤维膜结构和过滤性能的影响。通过扫描电子显微镜和自动滤料检测仪对PAN纳米纤维膜的形貌、过滤效率和滤阻进行了测试分析。之后研究了溶液放置时间对滤膜过滤性能的影响。研究结果表明:随纺丝时间的延长,纤维的直径变化不大,过滤效率和滤阻增加;随着纺丝液浓度的增加,纤维的直径变大,过滤效率和滤阻先增加后降低;纺丝液质量分数为10%时,滤阻较小,过滤效率高;溶液放置一定时间后,制得纤维的直径变粗,不同纺丝时间、纺丝液浓度条件下的滤膜过滤效率、滤阻均下降。The electrospinning membrane has good filtration performance, but it is necessary to understand the relationship between spinning parameters, solution properties and the filtration performance in order to spin the controllable filter material. Firstly, electrospun PAN nanofiber membranes are prepared by electrospinning, the effects of spinning time and spinning solution concentration on the membrane structure and filtration performance are studied. The morphology, filtration efficiency and filter resistance of PAN nanofiber membranes are tested by scanning electron microscopy and automatic filter media. Afterwards, the effect of solution residence time on filtration performance of membrane is studied. The results show that with the increase of spinning time, the fiber diameter dose not change significantly, and the filtration efficiency and filter resistance increase. With the increase of the spinning solution concentration, the diameter of the fiber becomes coarser, and the filtration efficiency and the filtration resistance increase first and then decrease. When the concentration is 10%, the filtration resistance is small and the filtration efficiency is high. After the solution is left for a certain period of time, the fiber diameter becomes coarser, and the filtration efficiency and the filter resistance of the filter membrane under different spinning time and spinning solution concentration decrease.

关 键 词：静电纺丝 纳米纤维膜 纺丝液浓度 纺丝时间 过滤性能 放置时间 

分 类 号：TS104.2[轻工技术与工程—纺织工程]