Effects of PEG on the Performance of SR/PAN Composite Membranes for O2/N2 Separation
The asymmetric membrane were prepared via phase inversion process from the casting solution composed of polyacrylonitrile (PAN), polyethylene glycol (PEG), N,N-dimethyl- formamide (DMF). Water was chosen as the coagulant. The silicon rubber (SR) was coated on the substrate surface as the selective layer. The effect of the PEG with different molecular weight on the membrane structure and their performance were investigated by scanning electron microscope observations, the measurement of the oxygen permeation rate and the selectivity of oxygen/nitrogen. The results shown that the composite membrane with 6% PEG-400, 4% PEG-600, 2% PEG-1000 (w/w) in the membrane casting solution exhibited the performance of the oxygen permeation rate with 407 GPU, 352 GPU and 377 GPU as well as the selectivity of oxygen/nitrogen with 2.07, 2.10 and 2.09, respectively.
Polyacrylonitrile Additives Phase inversion Permeability Selectivity
Jiansheng Zhang Gaohong He Lingling Zhang Fei Nie Wenhua Shi
State Key Laboratory of Fine Chemicals, R & D Center of membrane Science and Technology, Dalian University of Technology, 158 Zhongshan Road, 116012 Dalian,China
国际会议
The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)
大连
英文
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）