Structures and properties of modified ethylcellulose oxygen-enriched membranes

✍ Scribed by Ling Hu; Xingxiang Zhang; Hua Zhang; Jianjin Niu; Xuecheng Wang

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 200 KB
• Volume: 65
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19970829)65:9<1837::aid-app22>3.0.co;2-i

✦ Synopsis

improve the gas permeability of ethylcellulose mem-Additionally, since the effects of operating temperature branes, we carried out blend-modifications by adding on the oxygen-enriched performances (i.e., both oxygen-Co (Ac) 2 or Co (Salphen ) to ethylcellulose. The results enriched air permeabilities and selectivities of the comwere just as we expected. Although there have been posite membranes increase with the enhancement of some reports on the enhancement of membrane air peroperating temperature ) are different from that for the meability, 5-7 these studies have only discussed the per-EC membrane further demonstrates the existence of meabilities of pure oxygen and nitrogen in membranes, the complex formation in the composite membranes.

and did not address practical oxygen-enriched performances and the structure of the membranes. We have therefore made a series of detailed studies on the struc-