化工进展 ›› 2022, Vol. 41 ›› Issue (9): 4884-4894.DOI: 10.16085/j.issn.1000-6613.2021-2399

• 材料科学与技术 • 上一篇    下一篇

制备聚酰胺复合膜中界面聚合反应添加剂研究进展

张赛晖1,2(), 李校阳1,2, 高慧2,3, 王丽丽1,2   

  1. 1.天津工业大学化学学院,天津 300387
    2.省部共建分离膜与膜过程国家重点实验室,天津 300387
    3.天津工业大学环境科学与工程学院,天津 300387
  • 收稿日期:2021-11-23 修回日期:2022-01-23 出版日期:2022-09-25 发布日期:2022-09-27
  • 通讯作者: 张赛晖
  • 作者简介:张赛晖(1981—),男,博士,讲师,硕士生导师,研究方向为分离膜材料及膜过程。E-mail:zhangsh_tjpu@126.com
  • 基金资助:
    天津市教委科研计划(2017KJ078)

Recent progress in additives in interfacial polymerization for the preparation of polyamide composite membrane

ZHANG Saihui1,2(), LI Xiaoyang1,2, GAO Hui2,3, WANG Lili1,2   

  1. 1.School of Chemistry, Tiangong University, Tianjin 300387, China
    2.School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China
    3.State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
  • Received:2021-11-23 Revised:2022-01-23 Online:2022-09-25 Published:2022-09-27
  • Contact: ZHANG Saihui

摘要:

聚酰胺复合膜以其优良的稳定性及良好的分离选择性成为水处理和化工分离领域应用范围最广的分离材料之一。聚酰胺复合膜一般采用界面聚合法制备,由于界面聚合反应活性高、反应参数多,致使界面层结构难以控制,膜的渗透性或选择性不理想。因此,如何有效调控膜结构,实现膜的高渗透性或选择性是目前面临的重要挑战。近期诸多研究表明,在水相或有机相中引入添加剂可以改变油水界面张力进而调控单体界面扩散速率及界面分布,或通过改变反应机理影响聚合反应速率,最终实现对界面层结构和膜性能的调控。本文从添加剂种类、性质和调控作用等角度总结了近年来添加剂对复合膜结构及性能调控的研究进展,分析了现有研究存在的问题,并建议从微观层面探究界面过程的物理化学性质以及开发高时间分辨率原位表征方法等。

关键词: 界面聚合, 膜, 添加剂, 聚酰胺复合膜

Abstract:

Polyamide composite membrane has become one of the most widely-used materials in the field of water treatment and chemical engineering separation due to its excellent stability and separation selectivity. Generally, polyamide composite membrane is fabricated by interfacial polymerization. Due to the high reactivity and numerous reaction parameters of interfacial polymerization, the structure of interfacial layer is difficult to control, and the permeability or selectivity of membrane is not satisfactory. Thus, it is a great challenge to regulate the structure of the membrane and achieve a membrane with high permeability or separation performance. Recent research indicates that addition of additives into the organic phase or aqueous phase solution is to change the interfacial tension. In this case, the monomer diffusion rate and the distribution can therefore be modified. The mechanism of the polymerization might be changed as well and the reaction rate can be regulated. Consequently, the structure of the interfacial layer and the performance of the membrane can be regulated. This review summarizes the recent progress from the perspective of the type, function and effect of additives. On the basis of recent research progress, it is suggested to explore the physicochemical properties of interfacial process at microscale and develop high time-resolution in-situ characterization methods.

Key words: interfacial polymerization, membranes, additives, polyamide composite membrane

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