Preparation of a heterogeneous hollow-fiber affinity membrane modified with a mercapto chelating resin

被引：0

作者：

Wang, Bing ^{[1
]}

Huang, Lei ^{[1
]}

Xiao, Feng ^{[1
]}

Liu, Wei ^{[1
]}

Jiang, Xipeng ^{[1
]}

机构：

[1] Key Lab. of Hollow-Fiber Membrane Materials and Membrane Processes of the Ministry of Education, School of Materials Science and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300160, China

来源：

Journal of Applied Polymer Science | 2007年 / 105卷 / 03期

关键词：

A high-quality; heterogeneous hollow-fiber affinity membranes modified with mercapto was prepared through phase separation with blends of a chelating resin and polysulfone as membrane materials; poly(ethylene glycol) as an additive; N; N-dimethylacetamide as a solvent; and water as an extraction solvent. The effects of the blending ratio and chelating resin grain size on the structure of the hollow-fiber affinity membrane were studied. The effects of the composition of the spin-cast solution and process parameters of dry-wet spinning on the structure of the heterogeneous hollow-fiber affinity membrane were investigated. The pore size; porosity; and water flux of the hollow-fiber affinity membrane all decreased with an increase in the additive content; bore liquid; and dry-spinning distance. With an increase in the extrusion volume outflow; the external diameter; wall thickness; and porosity of the hollow-fiber affinity membrane all increased; but the pore size and water flux of the hollow-fiber affinity membrane decreased. It was also found that the effects of the internal coagulant composition and external coagulant composition on the structure of the heterogeneous hollow-fiber affinity membrane were different. The experimental results showed that thermal drawing could increase the mechanical properties of the heterogeneous hollow-fiber affinity membrane and decrease the pore size; and water flux of the heterogeneous hollow-fiber affinity membrane; and the thermal treatment could increase the homogeneity and stability of the structure of the heterogeneous hollow-fiber affinity membrane. ©2007 Wiley Periodicals; Inc;

D O I：

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中图分类号：

学科分类号：

摘要：

Journal article (JA)

引用

页码：1687 / 1699

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