Study on the Formation Process of Asymmetric CO2 Separation Membrane
- Received Date: 2000-11-05
- Dry/wet phase inversion, Formation process, Dynamically monitor, Membrane morphology /
Abstract: A series asymmetric poly (ether sulfone) gas separation membranes were prepared by dry/wet phase inversion processes. The membrane formation processes include two main processes, the evaporation process was dynamically monitored with FTIR-ATR and the immersion process was dynamically photoed with optical microscope. The kinetic effect of the dry/wet phase inversion process on the morphology has been studied. It is concluded that two factors (convection evaporation and solvent/nonsolvent exchange rate) are important in controlling membrane morphology for gas separation.
|Citation:||Xiao Tonghu, Ge Junhao, Zhou Meijuan, Shi Xiaoyu. Study on the Formation Process of Asymmetric CO2 Separation Membrane[J]. Chinese Journal of Chemical Physics , 2001, 14(2): 223-230. doi: 10.1088/1674-0068/14/2/223-230|