PA/PTFE复合纳滤膜的制备及表征  

Synthesis and Characterization of PA/PTFE Composite Nanofiltration Membrane

作　　者：李华彬[1] 唐红艳[2,3] 郭玉海[2,3] 

机构地区：[1]浙江理工大学材料与纺织学院,杭州310018 [2]浙江理工大学"纺织纤维材料与加工技术"国家地方联合工程实验室,杭州310018 [3]浙江理工大学浙江省重点实验室"纤维材料和加工技术研究实验室",杭州310018

出　　处：《浙江理工大学学报（自然科学版）》2017年第1期14-17,共4页Journal of Zhejiang Sci-Tech University(Natural Sciences)

基　　金：国家科技支撑计划项目(2013BAC01B01);浙江省自然科学基金项目(LY15B060010);浙江理工大学521人才培养计划;浙江省高校重中之重学科优秀基金;开放基金项目(2014KF05;2014YXQN03)

摘　　要：以聚四氟乙烯(PTFE)微孔膜为基膜,间苯二胺(MPD)为水相单体,均苯三甲酰氯(TMC)为油相单体,采用界面聚合的方法制备了聚酰胺(PA)/PTFE复合纳滤膜。用红外光谱(FTIR)和扫描电子显微镜(SEM)对复合纳滤膜化学结构和微观形貌进行分析,探讨单体浓度、聚合时间、热处理条件对膜结构性能的影响。结果表明,在操作压力0.5 MPa下,所制备的复合纳滤膜对1g/L Na2SO4溶液的脱除率为95%以上。Polyamide （PA）/polytetrafluoroethylene （PTFE） composite nanofiltration membrane was obtained by the interfacial polymerization of m-phenylenediamine （MPD） as water phase monomer and trimesoyl chloride （TMC） as oil phase monomer on the microporous PTFE substrate. The chemical structure and morphology of composite membranes were characterized by Fourier transform infrared spectrophotometry （FTIR） and scanning electronic microscopy （SEM）. The effects of monomer concentration, reaction time of interfacial polymerization and heat treatment condition on structural performance of composite membranes were discussed. Results show that the composite nanofiltration membrane can remove over 95% of lg/L Na2SO4 solution at the operating pressure of 0. 5 MPa.

关 键 词：间苯二胺 均苯三甲酰氯 聚四氟乙烯微孔膜 界面聚合 纳滤 

分 类 号：TQ028.8[化学工程]