PREPARATION OF HOLLOW FIBER MEMBRANES FROM POLYETHERIMIDE FOR GAS SEPARATION

被引:81
作者
KNEIFEL, K [1 ]
PEINEMANN, KV [1 ]
机构
[1] GKSS,FORSCHUNGSZENTRUM GEESTHACHT GMBH,INST CHEM,W-2054 GEESTHACHT,GERMANY
关键词
COMPOSITE MEMBRANES; FIBER MEMBRANES; GAS SEPARATION; MEMBRANE PREPARATION AND STRUCTURE; MICROPOROUS AND POROUS MEMBRANES;
D O I
10.1016/0376-7388(92)87030-2
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The objective of this work was to develope integral asymmetric polyethermide hollow fiber membranes both with a microporous skin and with a dense skin on the bore side of the fibers. The microporous types would to be suitable as substrate membranes for the preparation of composite membranes. The effect of the composition of the polymer solution, the spinning conditions and the post-treatment on the porosity of the skin and on the shape and morphology of the fiber wall was investigated. Silicone composite membranes with an oxygen permeability of up to 5.3 x 10(-9) m3 (N)/m2-sec-Pa and dense membranes with a helium/nitrogen selectivity of about 1.70, at a helium permeability up to 5.6 x 10(-10) m3 (N)/m2-sec-Pa, were obtained.
引用
收藏
页码:295 / 307
页数:13
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