化工进展 ›› 2020, Vol. 39 ›› Issue (6): 2156-2165.DOI: 10.16085/j.issn.1000-6613.2020-0143

• 专栏:化工分离过程 • 上一篇    下一篇

压力驱动薄层复合膜中微孔基底的研究进展

任亮1(), 陈建新1(), 卢卿2, 韩健1, 吴洪3   

  1. 1.河北工业大学化工学院,天津 300130
    2.天津博科林药品包装技术有限公司,天津 300410
    3.天津大学化工学院,天津 300072
  • 出版日期:2020-06-05 发布日期:2020-06-16
  • 通讯作者: 陈建新
  • 作者简介:任亮(1991—),男,博士研究生,研究方向为膜分离。E-mail:liangren2018@foxmail.com
  • 基金资助:
    国家自然科学基金(21476059)

Recent progress on microporous substrate for pressure-driven thin film composite membranes

Liang REN1(), Jianxin CHEN1(), Qing LU2, Jian HAN1, Hong WU3   

  1. 1.School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
    2.Tianjin Bokelin Medical Packaging Technology Company Limited, Tianjin 300410, China
    3.School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
  • Online:2020-06-05 Published:2020-06-16
  • Contact: Jianxin CHEN

摘要:

压力驱动薄层复合膜(TFC)因其高分离效率和低能耗等优点,在水处理领域得到广泛应用。TFC膜的开发及性能提升可针对聚酰胺(PA)分离层和微孔基底两方面进行优化。其中,微孔基底对其上通过界面聚合(IP)形成的PA层的结构和分离性能具有重要影响。本文对NF/RO TFC膜中微孔基底的研究工作进行了评述。首先对两类微孔基底(相转化微孔基底和静电纺丝微孔基底)进行了概述,进而介绍了传统相转化微孔基底对IP过程的影响机理,并对相转化微孔基底的改性方法(聚合物共混、纳米材料掺杂、表面改性等)进行了总结,最后展望了共价有机框架(COFs)中间层表面改性微孔基底在构建高选择性、高渗透通量压力驱动TFC膜中的发展方向及面临的挑战。

关键词: 膜, 分离, 表面, 微孔基底, 渗透

Abstract:

The pressure-driven thin film composite (TFC) membranes have been widely applied in the field of water treatment due to their high separation efficiency and low-energy consumption.The development and performance improvement of TFC membranes can be optimized for polyamide (PA) separation layer and microporous substrate. Among them, microporous substrate has an important influence on the structure and separation performance of PA layer formed by interface polymerization (IP). In this paper, the recent progress in the substrates of NF/RO TFC membranes is reviewed. Firstly,two kinds of microporous substrates (conventional phase transformed microporous substrate and electrospinned microporous substrate) are introduced. Then, the effects of the phase-inversion substrates on the IP process are summarized. The substrates modification methods (polymer blending, nanomaterial doping, surface modification, etc.) are reviewed. Finally, development directions and challenges in covalent organic frameworks (COFs) interlayer surface modified microporous substrates for high-performance pressure-driven TFC membranes are tentatively discussed.

Key words: membrane, separation, surface, microporous substrates, permeation

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