抗污染PVA／PVDF电纺纳米纤维复合超滤膜的制备及过滤性能
Preparation and Filtration Performance of Antifouling PVA/PVDF Composite Ultrafiltration Membrane Based on Electrospinning Technology
摘要
Abstract
A composite ultrafiltration membrane containning polyethylene terephthalate ( PET ) non⁃woven fabric substrate and poly(vinylidene fluoride)(PVDF) nanofibers as support layer, polyvinyl alcohol(PVA) nanofiber membrane for barrier layer was prepared using electrospinning method. A mixture of acetone and water solution was used for crosslinking treatment to form the dense barrier layer. The ultrafiltration membranes were characterized by Fourier transform infrared(FTIR) spectroscopy, scanning electron micrograph(SEM) and water contact angle(WCA). Filtration performance of the resulting PVA/PVDF composite ultrafiltration membranes was evaluated by the oil/water emulsions separation system. The results showed that the optimal composite ultrafiltration membrane possessed general flux[(42�50±4�78) L/(m2·h)] and high rejection rate[(95�72±0�33)%] at very low feeding pressure(0�02 MPa), after 5 times recycled, it still has good filter performance. The pure water flux using the dead⁃end filtrationof composite ultrafiltration membrane at atmospheric pressure was [(3469±28) L/(m2·h)].关键词
静电纺丝/溶液处理/超滤/抗污染Key words
Electrospinning/Solution treatment/Ultrafiltration/Antifouling分类
化学化工引用本文复制引用
武凌辉,汪滨,王娇娜,李从举..抗污染PVA／PVDF电纺纳米纤维复合超滤膜的制备及过滤性能[J].高等学校化学学报,2016,37(12):2306-2314,9.基金项目
国家自然科学基金（批准号21274006，51503005）、北京市科技北京百名领军人才工程（批准号 Z16111000490000）、北京市百千万人才工程（批准号110403000402）、北京市属高等学校高层次人才引进与培养计划项目-北京市长城学者培育计划项目（批准号CIT&TCD20150306）、北京市属高校创新能力提升计划项目（批准号TJSHG201310012021）、北京市教育委员会科技计划一般项目（批准号SQKM20171001-2004）、北京服装学院创新团队与优秀人才选拔与培养计划项目（批准号2014AL-68）和北京市服装材料研究开发与评价重点实验室开放课题（批准号2015ZK-02）和北京服装学院校内重点项目（批准号2016A-03）资助．? Supported by the Natural Science Foundation of China（Nos．21274006，51503005）， the Beijing Science and Technology Leading Talent Project， China（No．Z16111000490000）， the Beijing Talents Project， China（No．110403000402）， the Importation and Development of High-Caliber Talents Project of Beijing Municipal Institutions-the Beijing Great Wall Scholars Incubator Program， China（No．CIT&TCD20150306）， the Beijing City Board of Education Upgrade Project， China（No．TJSHG201310012021）， the General Program of Science and Technology Development Project of Beijing Municipal Education Commission of China（No．SQKM201710012004）， the Project of Construction of Innovative Teams and Selection and Development of Excellent Talents for Beijing Institute of Fashion Technology， China（ No．2014AL-68）， the Open Project Program of Beijing Key Laboratory（ No．2015ZK-02） and the Key Research Project of Beijing Institute of Fashion Technology， China（ No．2016A-03）． （）
