膜科学与技术

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Preparation and characterization of hollow fiber fluoropolyamide nanofiltration membrane by the interfacial polymerization

Authors： REN Qiaochu, TANG Yongjian, XU Zhenliang

Units： State Key Laboratory of Chemical Engineering, Membrane Science, Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science, Technology (ECUST), 130 Meilong Road, Shanghai 200237, China

KeyWords： 2,2’-bis(1-hydroxyl-1-trifluoromethyl-2,2,2-trifluoroethyl)-4,4’-methylenedianiline；interfacial polymerization；nanofiltration membrane；hollow fiber

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2016,36(3):93-97

Abstract：

Using polysulfone (PSF) hollow fiber membrane as the supporting membrane, fluoropolyamide /polysulfone (PSF) hollow fiber thin film composite (TFC) nanofiltration (NF) membranes were prepared by the interfacial polymerization of 2,2’-bis(1-hydroxyl-1-trifluoromethyl-2,2,2-trifluoroethyl)-4,4’-methylenedianiline (BHTTM) and trimesoyl chloride (TMC). The morphology and surface properties of hollow fiber TFC NF membranes were characterized by scanning electron microscope (SEM), atomic force microscopy (AFM), attenuated total reflectance infrared (ATR-IR) and contact angle instrument. The experimental results showed that the hollow fiber TFC NF membrane prepared under the following condition gained the best performance: 1.0 % (w/v) BHTTM and 0.15% (w/v) TMC for 10s reaction and 10min heat treatment in 60℃. The rejections of the resulting NF membrane for different inorganic electrolyte solutions decreased in the following order: Na2SO4, MgSO4, NaCl, MgCl2, which was typical characteristics of negatively charged NF membranes.

Funds：

2013年国家新材料研发及产业化专项、国家科技部支撑计划项目(2014BAB07B01)、上海市科技攻关计划(13521102000)和江苏省科技工业支撑计划(BE2013031)。

AuthorIntro：

作者简介：任翘楚（1990-），男，江苏启东人，硕士研究生，主要从事纳滤膜制备与膜法水处理研究工作。通讯联系人：许振良，Tel：021-64252989；Email：chemxuzl@ecust.edu.cn

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