Preparation of Hollow Fiber Membrane Precursor from Glass and PVDF by Non-Solvent Induced Phase Separation

Abstract:

Glass hollow fiber membrane precursor was well prepared using glass and polyvinylidene fluoride (PVDF) as starting materials by non-solvent-induced phase separation. The spinning dope including glass powders and PVDF was obtained firstly. Then the hollow fiber membrane precursors were spinning via dry-wet spinning method. The parameters about preparation process were listed. The viscosity of spinning dope were also measured. The results showed that the viscosity increased with a function of the content of PVDF. The suitable viscosity for spinning technology was selected. The scanning electron microscopy showed that the glass powders with the diameter of several micrometer were connected by PVDF binder. The water flux was also tested, and it decreased with the time. The preparation technology of glass hollow fiber membrane precursor could provide support for the glass hollow fiber membrane via sintering process.

• Periodical: Key Engineering Materials (Volume 726)
• Pages: 373-377
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.726.373
• Online since: January 2017
• Authors: Jia Wei Xu, Ya Bin Zhang*, Qin Lu, Qing Lin Huang, Chang Fa Xiao
• Keywords: Hollow Fiber Membrane Precursor, Non-Solvent Induced Phase Separation

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