Modification of Polyimide-Urethane Reverse Osimosis Composite Membrane Based on NaA Zeolite

doi:10.6023/cjoc201806027

Chin. J. Org. Chem. ›› 2018, Vol. 38 ›› Issue (11): 3127-3136.DOI: 10.6023/cjoc201806027 Previous Articles Next Articles

Notes

基于NaA分子筛的聚酰亚胺-氨酯反渗透复合膜改性研究

刘立芬^a,b, 张潇^a, 谢欣^a, 李蕊含^a, 高从堦^a,b

a 膜分离与水科学技术中心浙江工业大学海洋学院杭州 310014;
b 浙江省膜分离与水处理协同创新中心杭州 310014

收稿日期:2018-06-19 修回日期:2018-06-26 发布日期:2018-06-29
通讯作者: 刘立芬 E-mail:lifenliu@zjut.edu.cn
基金资助:
国家自然科学基金（Nos.21776253，21774077）、国家重点研发计划项目课题（No.2016YFC0401508）、国家“973计划”（No.2015CB655303）和浙江省膜分离与水处理协同创新中心开放基金（No.2015）资助项目.

Modification of Polyimide-Urethane Reverse Osimosis Composite Membrane Based on NaA Zeolite

Liu Lifen^a,b, Zhang Xiao^a, Xie Xin^a, Li Ruihan^a, Gao Congjie^a,b

a Center for Membrane and Water Science and Technology, Ocean College, Zhejiang University of Technology, Hangzhou 310014;
b Collaborative Innovation Center of Membrane Separation and Water Treatment of Zhejiang Province, Hangzhou 310014

Received:2018-06-19 Revised:2018-06-26 Published:2018-06-29
Supported by:
Project supported by the National Natural Science Foundation of China (No. 21776253 & 21774077), the National Key Research and Development Program of China (No. 2016YFC0401508), the National Basic Research Program of China (No. 2015CB655303) and the Open Research Fund Program of Collaborative Innovation Center of Membrane Separation and Water Treatment of Zhejiang Province (No. 2015).

1. Modification of Polyimide-Urethane Reverse Osimosis Composite Membrane Based on NaA Zeolite.PDF(1081KB)

Abstract

A polyimide-urethane reverse osmosis (RO) composite membrane (MMPD-CFIC@CFIC-DMMPD) was prepared through the reaction of N,N'-dimethyl-m-phenylenediamine (DMMPD) and 4-methyl-phenylenediamine (MMPD) with 5-choroformyloxyisophaloyl chloride (CFIC) via two-step interfacial polymerization method, and this membrane exhibits good oxidation resistance. Then, this MMPD-CFIC@CFIC-DMMPD membrane was further modified with NaA zeolite by doping in the CFIC organic phase. The chemical structure of membrane active layer was examined by the attenuated total reflectance infrared (ATR-IR) and X-ray photoelectronic spectroscopy (XPS). The membrane surface and cross-section morphologies were observed with scanning electronic microscopy (SEM), atomic force microscope (AFM) and transmission electron microscopy (TEM), and the hydrophicity of membrane surface was evaluated by contact angle. Moreover, the separation performance, chlorine resistance and organic foulant resistance properties of the two membranes were systematically investigated. The results showed that the modified polyimide-urethane RO membrane (MMPD-CFIC/NaA@CFIC-DMMPD) presented higher water flux, better organic foulant resistance performance as well as favourite chlorine resistance property than the origin MMPD-CFIC@CFIC-DMMPD membrane due to the incorporating of NaA nanoparticles into the membrane.

Key words: polyimide-urethane, reverse osmosis composite membrane, NaA zeolite, high water flux, foulant resistance, chlorine resistance

Cite this article

Liu Lifen, Zhang Xiao, Xie Xin, Li Ruihan, Gao Congjie. Modification of Polyimide-Urethane Reverse Osimosis Composite Membrane Based on NaA Zeolite[J]. Chin. J. Org. Chem., 2018, 38(11): 3127-3136.

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基于NaA分子筛的聚酰亚胺-氨酯反渗透复合膜改性研究

Modification of Polyimide-Urethane Reverse Osimosis Composite Membrane Based on NaA Zeolite

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