引用本文:
黄加乐, 陈坚锐, 董声雄, 龚琦, 周巧琴. 聚醚砜超滤膜的结构与性能[J]. 应用化学,
2003, 20(1): 51-54.
Citation: HUANG Jia-Le, CHEN Jian-Rui, DONG Sheng-Xiong, GONG Qi, ZHOU Qiao-Qin. Structure and Property of Polyethersulfone Ultrafiltration Membrane[J]. Chinese Journal of Applied Chemistry, 2003, 20(1): 51-54.
Citation: HUANG Jia-Le, CHEN Jian-Rui, DONG Sheng-Xiong, GONG Qi, ZHOU Qiao-Qin. Structure and Property of Polyethersulfone Ultrafiltration Membrane[J]. Chinese Journal of Applied Chemistry, 2003, 20(1): 51-54.
聚醚砜超滤膜的结构与性能
English
Structure and Property of Polyethersulfone Ultrafiltration Membrane
Abstract:
Polyethersulfone(PES) ultrafitration membranes were prepared by a phase-inversion method. The water flux and the rejection of the membranes for vitamin B12 were measured and their top layer and cross section morphology were observed by SEM. The formation of macrovoids in the sublayer of the membranes, effects of polyethersulfone mass fraction in the casting solution, as well as the presence of phosphoric acid on the structure of sublayer and property of the final membranes had been investigated. It was found that formation of top layer had a significant effect on the structure of the sublayer of membrance. The appropriate PES mass fraction appeared in between 12% and 18%. Morphology of top layer, structure of sublayer and property of the membranes could be controlled by addition of a small amount of phosphoric acid to the casting solution.
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Key words:
- ultrafiltration membrane
- / polyethersulfone
- / membrane structure
- / macrovoid
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