CAJ | 학술논문

采用干/湿相转化法制备了一系列非对称结构的气体分离膜。动态监测成膜过程的不同阶段，用傅立叶变换红外光谱仪来研究干相转化的蒸发过程，采用数码相机连续照相的方法，用光学显微镜来研究湿相转化的凝胶过程，并探讨成膜动力学过程对膜的最终结构及性能的影响。结果表明，对流蒸发和凝胶过程溶剂/非溶剂的交换速率对形成非对称结构的高渗透性能气体分离膜有着重要的影响。
채용간/습상전화법제비료일계렬비대칭결구적기체분리막。동태감측성막과정적불동계단，용부립협변환홍외광보의래연구간상전화적증발과정，채용수마상궤련속조상적방법，용광학현미경래연구습상전화적응효과정，병탐토성막동역학과정대막적최종결구급성능적영향。결과표명，대류증발화응효과정용제/비용제적교환속솔대형성비대칭결구적고삼투성능기체분리막유착중요적영향。
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.