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NIPS法疏水PVDF膜的结构与性能调控研究进展

作者：徐小洁，于孟超，王钰，王涛，冯英楠，赵之平

单位：北京理工大学化学与化工学院，北京102488

关键词：疏水有机膜；非溶剂致相转化法；喷雾辅助相转化法；膜蒸馏

DOI号：

分类号： TQ028.8

出版年,卷(期):页码： 2024,44(1):147-156

摘要：

非溶剂致相分离法（NIPS）是制备多孔有机膜一种高效工艺手段，其过程中涉及的热力学与动力学因素对于疏水多孔膜的成膜结构与性质起着至关重要的决定性作用。为此，本文以常用疏水膜制备原材料聚偏氟乙烯（PVDF）为研究对象，系统阐述采用传统浸没沉淀相转化法和新兴喷雾辅助相转化法两种NIPS制膜工艺路线对PVDF疏水膜微纳结构的影响及其内在成膜机理，旨在通过明晰制膜过程中影响因素对成膜疏水性、孔结构参数的作用规律，为疏水膜的可控制备提供理论指导与技术支持。

Non-solvent induced phase separation (NIPS) is an efficient method to prepare porous hydrophobic membranes. It involves thermodynamic and kinetic factors which have deterministic effects on the structure and performance of hydrophobic porous membranes. Hence, a commonly used material for hydrophobic membrane preparation, PVDF, is taken as the research object in this paper. This paper systematically summarizes the influencing factors and membrane formation mechanisms of traditional immersion precipitation method and emerging spray-assisted non-solvent induced phase separation method in the membrane preparation process, focusing on the effects of different fabrication conditions on the membrane structure and performance (hydrophobicity, pore size and porosity, etc.), which could lay a foundation for the controllable preparation of hydrophobic membranes.

基金项目：

国家自然科学基金（22208016），北京理工大学青年教师学术启动计划。

作者简介：

徐小洁（2000-），女，河北邯郸人，硕士研究生，研究方向为有机膜制备及应用，E-mail：xxj001221@163.com

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