Abstract:

It is the main research direction to prepare nanlfibers with porous structure. Preparation of porous electrospun nanomaterials by self-forming and post-treatment methods was systematically reviewed. Principles of self-forming pore and post-treatment pore were introduced. Meanwhile, merits and demerits of different methods were given a comparative analysis. The analysis shows that process is simple for self-forming pore, while diameter and distribution of pores are random and difficult to be controlled. However, for post-treatment pores, diameter of pores can be controlled, while process is relatively complex. Therefore,  the furture research should focus on accurate control of diameter and disbribution of nanopores, which will achieve a precise matching between structure and function.

Key words: electrosinning, nanofiber, porous spructuer, self-forming pore, post-treatment pore