A review of recent research related to micro- porous polymeric membranes formed via thermally induced phase separation （TIPS） and the morphologies of these membranes is presented. A summary of polymers and suitable ...A review of recent research related to micro- porous polymeric membranes formed via thermally induced phase separation （TIPS） and the morphologies of these membranes is presented. A summary of polymers and suitable diluents that can be used to prepare these microporous membranes via TIPS are summarized. The effects of different kinds of polymer materials, diluent types, cooling conditions, extractants and additive agents on the morphology and performance of TIPS membranes are also discussed. Finally new developments in TIPS technology are summarized.展开更多
文摘A review of recent research related to micro- porous polymeric membranes formed via thermally induced phase separation （TIPS） and the morphologies of these membranes is presented. A summary of polymers and suitable diluents that can be used to prepare these microporous membranes via TIPS are summarized. The effects of different kinds of polymer materials, diluent types, cooling conditions, extractants and additive agents on the morphology and performance of TIPS membranes are also discussed. Finally new developments in TIPS technology are summarized.
文摘采用热致相分离技术成功制备出聚偏氟乙烯-六氟丙烯(PVDF-HFP)多孔膜,相图分析表明,PVDF-HFP/环丁砜体系发生固-液分相.SEM显示膜由球晶和丝状结晶组成.随聚合物浓度增加,多孔膜的结晶度、孔隙率以及平均孔径均降低,由多孔膜制得的凝胶聚合物电解质膜,其吸液率和电导率也降低,但多孔膜的力学性能提高.所有样品在20℃时的电导率超过2×10-3S/cm,电化学窗口大于4.5 V.
