陕西科技大学学报（自然科学版）2009，Vol.27Issue(1)：6-13,8.
超薄致密选择性分离层聚醚砜中空纤维膜制备及其气体性能
O2/N2 SEPARATION PERFORMANCE OF PES HOLLOW FIBER MEMBRANES WITH AN ULTRATHIN DENSE-SELECTIVE LAYER
摘要
Abstract
Using polyethersulfones as membrane materials, N-methyl-2-prirodidone (NMP) as a solvent, ethanol as a nonsolvent, NMP-water as the bore solution, the dope solution of PES:NMP:Ethanol 35:57:8 in wt% was obtained and PES hollow fiber membranes with an ultrathin dense-selective layer for O2/N2 separation were prepared by dry/wet phase separation method. Effects of bore fluid composition, bore fluid rate and silicone rubbers on the morphologies, gas performances and mechanical properties of PES hollow fiber membranes were discussed. On the basis of the experimental results, the suitable spinning conditions were as follows: coagulation bath temperature 17 ℃, bore fluid composition NMP:water =86:14 in wt% and bore fluid rate 0.15 mL/min. Based on the comparison of O2/N2 separation performances of PES membrane materials under the suitable spinning conditions, the O2/N2 selectivity and the permeation flux of PES hollow fiber membrane were 6.23 and 9.65 GPU, respectively. Besides, the mechanical properties of PES-B fibers were better than those of PES-A fibers hollow fiber membranes are more suitable for the industrial gas application.关键词
中空纤维膜/气体分离/聚醚砜/超薄致密选择性分离层Key words
hollow fiber membrane/gas separation/polyethersulfone/ultrathin dense-selective layer分类
化学化工引用本文复制引用
陈桂娥,许振良,房鼎业..超薄致密选择性分离层聚醚砜中空纤维膜制备及其气体性能[J].陕西科技大学学报（自然科学版）,2009,27(1):6-13,8.基金项目
国家重点基础研究发展计划(973计划)资助(2003CB615705)、上海市高等学校科学技术发展基金(02HK04)和上海市重点学科建设资助项目(P1501) （973计划）
