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Fabrication of high performance Matrimid/polysulfone dual-layer hollow fiber membranes for O-2/N-2 separation
Ding, Xiaoli1,2; Cao, Yiming1; Zhao, Hongyong1,2; Wang, Lina1; Yuan, Quan1
关键词Dual-layer Hollow Fiber Membrane Substructure Resistance Spinneret Dimension Dope Composition Binodals Aging Phenomenon
刊名JOURNAL OF MEMBRANE SCIENCE
2008-10-15
DOI10.1016/j.memsci.2008.06.042
323期:2页:352-361
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Technology ; Physical Sciences
类目[WOS]Engineering, Chemical ; Polymer Science
研究领域[WOS]Engineering ; Polymer Science
关键词[WOS]CROSS-LINKING MODIFICATION ; DENSE-SELECTIVE LAYER ; GLASSY POLYMER-FILMS ; GAS SEPARATION ; PHASE-SEPARATION ; AGING PHENOMENON ; CO-EXTRUSION ; MIXED-GAS ; POLYIMIDE ; WET
英文摘要Matrimid/polysulfone (PSf) dual-layer hollow fiber membranes were fabricated by using co-extrusion and dry-jet wet-spinning phase-inversion techniques. The effects of the spinning dope composition, spinneret dimension, spinneret temperature and the air gap distance on the hollow fiber membranes separation performance were studied. Aging phenomenon was also studied. After coated by 3 wt% silicon solution, the hollow fiber membranes have an O-2/N-2 selectivity of 7.55 at 25 degrees C, 506.625 kPa which exceeds the intrinsic value of Matrimid. The membranes have an O-2 permeance of 9.36 GPU with an apparent dense-layer thickness of 1421 A calculated from the O-2 permeability. SEM images show the high porosity underneath the dense skin. It indicates that non-solvent addition is not necessary in the inner spinning dope to induce the macroviod formation. The binodals of the Matrimid/solvent/H2O and PSf/solvent/H2O indicate that the composition of the spinning dope plays an important role in the structure and the gas separation performance of the dual-layer hollow fiber membranes. The delayed demixing of the inner spinning dope may fabricate low resistance support layers in the dual-layer hollow fiber membranes. (C) 2008 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000259759000016
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被引频次:27[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140833
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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Ding, Xiaoli,Cao, Yiming,Zhao, Hongyong,et al. Fabrication of high performance Matrimid/polysulfone dual-layer hollow fiber membranes for O-2/N-2 separation[J]. JOURNAL OF MEMBRANE SCIENCE,2008,323(2):352-361.
APA Ding, Xiaoli,Cao, Yiming,Zhao, Hongyong,Wang, Lina,&Yuan, Quan.(2008).Fabrication of high performance Matrimid/polysulfone dual-layer hollow fiber membranes for O-2/N-2 separation.JOURNAL OF MEMBRANE SCIENCE,323(2),352-361.
MLA Ding, Xiaoli,et al."Fabrication of high performance Matrimid/polysulfone dual-layer hollow fiber membranes for O-2/N-2 separation".JOURNAL OF MEMBRANE SCIENCE 323.2(2008):352-361.
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