应用界面聚合反应修复ZSM-5分子筛膜缺陷

摘要

利用均苯三甲酰氯（TMC）和间苯二胺（MPDA）在分子筛膜表面缺陷处的接触、聚合，形成具有一定孔隙结构且亲水性的聚酰胺修复材料，实现了ZSM-5分子筛膜的选择性修复。修复后的分子筛膜只存在微孔缺陷，整体的孔径分布集中在0.6 nm以下范围，最大缺陷小于1.0 nm；分子筛膜对ca. 5%乙醇/水混合物的分离因子从修复前的1.1增大到16.0以上，对应通量在1.0 kg/（m²·h）以上。

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	刘秀凤
	曹秀秀
	李建
	张宝泉

关键词：界面聚合；分子筛膜；选择性修复；分离

Abstract：

A novel interfacial polymerization method was proposed for selective reparation of ZSM-5 zeolite membranes. Trimesoyl chloride(TMC) and m-phenylenediamine(MPDA) would be contacted at the defect areas on the membrane surface, leading to the formation of porous and hydrophilic materials by polymerization. After reparation, the defects concentrated below 0.6 nm were in the microporous scale and smaller than 1.0 nm. The separation factor for 5% C₂H₅OH/H₂O was increased from 1.1 to 16.0 with the permeation flux of 1.0 kg/(m²·h) and higher.

Keywords： interfacial polymerization； zeolite membrane； selective reparation； separation

Received 2014-09-24;

Fund:

国家自然科学基金重点项目（21136008）和面上项目（21476171）。

Corresponding Authors: 李建,E-mail: jian.li@tju.edu.cn。 Email: jian.li@tju.edu.cn

About author: 刘秀凤(1960-),女,博士,副研究员,研究方向为先进膜材料制备与应用。

引用本文:

刘秀凤, 曹秀秀, 李建, 张宝泉.应用界面聚合反应修复ZSM-5分子筛膜缺陷[J]. 化学工业与工程, 2016,33(5): 62-67

Liu Xiufeng, Cao Xiuxiu, Li Jian, Zhang Baoquan.Application of Interfacial Polymerization in Defect Reparation of ZSM-5 Zeolite Membranes[J]. Chemcial Industry and Engineering, 2016,33(5): 62-67

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