The multi-pore-structure of polymer-silicon hollow fiber membranes fabricated via thermally induced phase separation combining with stretching

► In this study, UHMWPE/PVDF/SiO2 membrane with multi-pore-structure is prepared. ► The structure include amorphous region broken pore, interface pore and TIPS pore. ► The assumptions about the phase separation and interface pore are put forward. ► The interface damage is controlled efficiently via varying the dispersed phase.