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....
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 ...
In order to advance asymmetric 6FDA-2,6 DAT hollow fiber membranes with higher performance for CO2/CH4 separation, the effects of dope rheology on the membrane morphology and gas separation performance of hollow fiber membranes were investigated for two different dope solutions 6FDA-2,6 DAT/NMP ...
Liu, Formation of high-performance 6FDA-2,6-DAT asymmetric composite hollow fiber membranes for CO2/CH4 separation, J. Membr. Sci., 209 (2002) 309.Cao, Chun, R. Wang, T. S. Chunga and Y. Liu, Formation Of High-Performance 6FDA-2,6DAT Asymmetric Composite Hollow Fiber Membranes For ...
Chemical cross-linking modification of 6FDA-2, 6-DAT hollow fiber membranes for natural gas separation. J Membr Sci 2003;216:257-68.Chun Cao,Tai-Shung Chung,Ye Liu,Rong Wang,K P. Pramoda.Chemical cross-linking modification of 6FDA-2, 6-DAT hollow fiber membranes for natural gas separation...
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...
We have studied the CO2-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 CO2/CH4 applications. Several processing and thermal approaches have been investigated to study their effectivene...
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 ...
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...
6FDA-2,6 DAT polyimideHollow fiber membraneCO 2-induced plasticizationSuppression of plasticizationHeat treatmentCO 2/CH 4 separationWe 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) ...