A simple and practical chemical cross-linking method has been demonstrated to make 6FDA-2,6-DAT asymmetric hollow fibers more resistant to plasticization by immersing them into a p-xylenediamine or m-xylenediamine/methanol solution for a short period of time at ambient temperature. FTIR spectra ...
以2.2'-双(3,4-二羧基苯基)六氟丙烷二酐(6FDA)作为二酐单体.1,3-苯二胺(mPDA)和 2,6-二氨基甲苯(2,6-DAT)为二胺单体,采用溶液共缩聚方法合成了一系列新型共聚聚酰亚胺... 王丽娜,曹义鸣,周美青,... - 《高分子学报》 被引量: 13发表: 2008年 The gas permeation properties of 6FDA-2, 4, 6-...
We have studied the CO 2-induced plasticization phenomenon of asymmetric poly(2,6-toluene-2,2-bis(3,4-dicarboxyphenyl) hexafluoropropane diimide) (6FDA-2,6 DAT) hollow fiber membranes for CO 2/CH 4 applications. Several processing and thermal approaches have been investigated to study their ef...
Cao C,Wang R,Chung T S,Liu Y.Formation of high-performance 6FDA-2,6-DAT asymmetric composite hollow fiber membranes for CO2/CH4 separation. Journal of Membrane Science . 2002C. Cao, R. Wang, T. S. Chung, Y. Liu, "Formation of high- performance 6FDA-2,6- DAT asymmetric composite ...
6FDACopolyimideGas permeationGlobal warming中国科学院机构知识库(CAS IR GRID)以发展机构知识能力和知识管理能力为目标,快速实现对本机构知识资产的收集,长期保存,合理传播利用,积极建设对知识内容进行捕获,转化,传播,利用和审计的能力,逐步建设包括知识内容分析,关系分析和能力审计在内的知识服务能力,开展综合知识管理....
Chemical cross-linking modification of 6FDA-2,6-DAT hollow fiber membranes for natural gas separation. Cao C,Chung T S,Liu Y,Wang R,Pramoda K. P. Journal of Membrane Science . 2003Cao Chun,Chung Taishung. Chemical cross-linking modification of 6FDA-2 , 6-DAT hollowfiber membranes for ...
摘要: We report that 6FDA-2,6-DAT polyimide can be used to fabricate hollow fiber membranes with excellent performances for CO关键词: 6FDA-2,6-DAT polyimide Hollow fiber formation Mixed gas permeation CO<INF>2</INF>/CH<INF>4</INF> separation DOI: 10.1016/S0376-7388(02)00359-9 ...
Development of asymmetric 6FDA-2,6 DAT hollow fiber membranes for CO2/CH4 separation: 1. The influence of dope composition and rheology on membrane morphol... Liu, Development of asymmetric 6FDA- 2,6 DAT hollow fiber membranes for CO2/CH4 separation: 1. The influence of dope composition and ...
By considering the degree of plasticization, dense-layer thickness, and heat treatment temperature, an optimal temperature of 250 掳C (for 5 min) is identified for the heat treatment of 6FDA-2,6 DAT hollow fiber membranes. NMR spectra suggest the cause of forming a highly densified skin after...
CO2/CH4 separationWe have determined the effects of dope composition, rheology and process conditions on membrane morphology and gas separation performance of asymmetric poly(2,6-toluene-2,2-bis(3,4-dicarboxyphenyl)hexafluoropropane diimide) (6FDA-2,6 DAT) hollow fiber membranes for air and CO...