膜科学与技术

复合相分离法制备梯度孔聚4-甲基-1-戊烯中空纤维膜

作者：田野¹，²，李沐霏³，林亚凯¹，²，唐元晖³，汪林¹，王晓琳¹， ⁴，赵志杰⁵，卢瑞瑶⁵，汤明⁵，胡声威⁵，冯可⁵，张筱帆⁵

单位： 1. 清华大学化学工程系膜材料与工程北京市重点实验室，北京 100084； 2. 化学工程与低碳技术全国重点实验室，北京 100084； 3. 中国矿业大学（北京）化学与环境工程学院，北京 100083； 4. 安徽师范大学化学与材料科学学院，芜湖 241002； 5. 中国石油化工股份有限公司北京燕山分公司，北京 102500

关键词：聚4-甲基-1-戊烯；中空纤维膜； PolarClean；复合相分离法；梯度孔结构

DOI号： 10.16159/j.cnki.issn1007-8924.2025.02.007

分类号： TQ 028.8

出版年,卷(期):页码： 2025,45(2):56-64

摘要：

本文在聚4-甲基-1-戊烯(PMP)/肉豆蔻酸（MA）体系的基础上，添加水溶性无毒非溶剂PolarClean，使得 PMP/MA/PolarClean 体系发生复合相分离，成功获得了表面致密、内部具有双连续梯度孔结构的 PMP中空纤维膜；系统地探究了MA/PolarClean配比，以及PMP质量分数对中空纤维膜的形貌、强度、泡点、透气量等性能的影响。结果表明，当MA/PolarClean质量比为5∶1，且PMP质量分数为40%时，PMP中空纤维膜的综合性能与商品膜相仿，展现了良好的应用潜力。

On the basis of the poly (4-methyl-1-pentene) (PMP)/myristic acid (MA) system, PolarClean,a non-solvent for PMP with water-soluble and non-toxic, was added to enable the PMP/MA/PolarClean system to undergo hybrid induced phase separation (HIPS), and successfully obtaining PMP hollow fiber membranes with dense surface and bicontinuous gradient pore structure inside. A systematic investigation was conducted on the effect of the MA/PolarClean mass ratio and PMP mass fraction on the morphology, strength, bubble point, nitrogen permeability, and other properties of hollow fiber membranes. The results showed that when the mass ratio of MA/PolarClean was 5∶1 and the PMP mass fraction was 40%, the comprehensive performance of PMP hollow fiber membranes was similar to that of commercial membranes, demonstrating good application potential.

基金项目：

国家自然科学基金面上项目（22378225）；国家重点研发计划项目（2022YFC2105103）；清华大学与中国石油化工股份有限公司北京燕山分公司横向合作课题（20212000432）

作者简介：

田野（1980-），男，重庆忠县人，博士，正高级工程师，主要从事新型膜材料制备工作

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