Effect of coagulation bath temperature on the structure and performance of polyethersulfone hollow fiber membranes by dry/wet process
- VernacularTitle:凝固浴温度与相转化聚醚砜中空纤维膜的结构与性能
- Author:
Dongxu PANG
;
Shaoli Lü
;
Xiuzhen WEI
;
Baoku ZHU
;
Youyi XU
- Publication Type:Journal Article
- From:
Chinese Journal of Tissue Engineering Research
2008;12(27):5381-5384
- CountryChina
- Language:Chinese
-
Abstract:
Polyethersulfone hollow fiber membranes were prepared from polyethersulfone/N, N-Dimethylacctamide/poly (N-vinyl-2-pyrrolidinone) systems by dry/wet phase inversion process using water as coagulation bath. The effects of coagulation bath temperature and air gap distance on the surface structure, cross section structure and water flux of membranes were discussed. As increasing the temperature of coagulation bath and the air gap distance, the size of the pores at the surface effectively increased, while the finger-like structure under the outer surface changed to a sponge-like structure.
