Fabrication of a Novel PVDF Blend Five-bore Membrane for Wastewater Treatment
Porous poly(vinylidene fluoride) (PVDF)/poly(methyl methacrylate) (PMMA) blend Five-bore hollow fiber membranes were prepared by wet phase inversion methods.In spinning these PVDF hollow fibers,dimethylacetamide (DMAc) and polyvinyl pyrrolidone (PVP) were used as a solvent and an additive,respectively.Water was used as the external coagulant.Water and DMAc was used as the internal coagulants.The membranes were characterized in terms of water flux,molecular weight cut-off for the wet membranes.The cross-sectional structures were examined by scanning electron microscopy.The effects of polymer concentration and the internal coagulant on the permeation properties and membrane structures were examined keeping the bore liquid flow and air-gap constants.High flux and strengh PVDF five-bore hollow fiber membranes could be prepared from a polymer dope at 17 wt.% concentration,air-gap at 14cm,and using 10 wt.%DMAc solution as the internal coagulant,internal coagulant flow at 13mL/min.
PVDF/PMMA five-bore hollow fiber membrane condition of spinning process
Huang Jianping Ma Chunyan Xi Danli Yan Kelu
College of Chemistry, Chemical Engineering and Biotechnology, School of Environmental Science and En College of Chemistry, Chemical Engineering and Biotechnology, School of Environmental Science and En
国际会议
上海
英文
217-217
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）