Abstract:

The reinforced method to improve the mechanical properties of hollow fiber membranes were introduced in this paper. The reinforced hollow fiber membranes with excellent mechanical properties and high separation precision were prepared 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 reinforcecd 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. Finally, the trends of preparation methods and application prospect for reinforced hollow fiber membranes were also indicated.