Please use this identifier to cite or link to this item:
|Title:||Preparation and characterization of polyvinylidene fluoride (PVDF) hollow fiber membranes|
|Authors:||Wang, D. |
|Source:||Wang, D., Li, K., Teo, W.K. (1999-11-01). Preparation and characterization of polyvinylidene fluoride (PVDF) hollow fiber membranes. Journal of Membrane Science 163 (2) : 211-220. ScholarBank@NUS Repository. https://doi.org/10.1016/S0376-7388(99)00181-7|
|Abstract:||Polyvinylidene fluoride (PVDF) hollow fiber membranes were prepared by dry/wet and 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 or ethanol was used as the internal coagulants. The membranes were characterized in terms of water flux, molecular weight cut-off for the wet membranes. Gas permeation fluxes and effective surface porosity were determined by a gas permeation method for the dried membranes. The cross-sectional structures were examined by scanning electron microscopy. The effects of polymer concentration, air-gap, PVP molecular weight, PVP content in the polymer dope, and the internal coagulant on the permeation properties and membrane structures were examined. Highly permeable PVDF hollow fiber membranes could be prepared from a polymer dope containing low molecular weight PVP and using ethanol as the internal coagulant. Copyright (C) 1999 Elsevier Science B.V.|
|Source Title:||Journal of Membrane Science|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jan 16, 2018
WEB OF SCIENCETM
checked on Nov 22, 2017
checked on Jan 13, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.