增强型中空纤维多孔膜研究进展

Research progress of reinforced hollow fiber porous membranes

介绍了提高中空纤维膜力学性能的方法,即通过增强体增强法制备兼具增强体力学性能优异和分离层分离精度高特点于一体的增强型中空纤维膜,解决传统单质中空纤维膜力学性能与分离性能不能兼顾的矛盾。分析了增强型中空纤维膜的分类及其制备方法,包括连续纤维增强型中空纤维膜、编织管增强型中空纤维膜和多孔基膜增强型中空纤维膜,阐述了3种增强型中空纤维膜的制备技术路线和致孔机制,回顾了其研究进展,并展望了增强型中空纤维膜的发展及应用前景。

The reinforced methods to improve the mechanical properties of hollow fiber membranes were introduced. The reinforced hollow fiber membranes with excellent mechanical properties and high separation precision were prepare by reinforced method using reinforced matrix to solve the contradiction between the mechanical properties and separation precision of the traditional membrane material with single compositional substance. The main classification and the preparation methods of reinforced hollow fiber porous membranes were discussed, i. e. continuous fiber reinforeecd hollow fiber membranes, tubular braids reinforced hollow fiber membranes and porous matrix reinforced hollow fiber membranes. The preparation technology and pore formation mechanism of these three types to prepared reinforced hollow fiber membranes were introduced, respectively. The history and development of these three membranes were reviewed and discussed. The trends of preparation methods and application prospect for reinforced hollow fiber membranes were also indicated.