Microporous material is a kind of material whose pore size varies at different application fields,usually less than 10μm. The special structure formed during processing is applicable in separating, permeating and purifying fields. Polymer microporous materials have a structure highly regularized, with open spongy porous structure interweaving each other, and the pore size can be tailored as desired. The maximum porosity accounts for 80% of the total volume. The traditional manufacturing methods incl...