金属有机框架/聚酰亚胺混合基质膜的研究进展

Research Progress on Mixed Matrix Membranes of Metal-organic Frameworks/Polyimides

聚酰亚胺是一种具有高热稳定性和良好成膜性的高分子材料,但聚酰亚胺膜在气体分离方面的应用效果较差。金属有机框架材料在气体分离中有较好的应用前景。用两者制备的混合基质膜,可以综合其各自的优点,提高对气体的选择渗透性。本文综述了采用金属有机框架材料、金属有机框架材料改性以及添加其他聚合物基底制备混合基质膜,对气体分离效果的影响,并对这种混合基质膜在气体分离领域的使用效果进行了分析,对这种混合基质膜面临的挑战进行了讨论与展望。

Polyimide was a kind of polymer material with high thermal stability and good film-forming property,but the effect of polyimide membrane on gas separation was poor.Metal-organic frameworks had great application prospects in gas separation.The mixed matrix membrane prepared by these two materials could combine their advantages and improve the permselectivity to gas.Metal-organic framework materials,the modification of metal-organic framework materials and add other polymers in polyimide were reviewed in this paper.The mixed matrix membranes used in gas separation area were analyzed,the facing challenges of this mixed matrix membrane were discussed.