Key Engineering Materials
Volume 726 KEM, 2017, Pages 373-377
7th Annual Meeting on Testing and Evaluation of Advanced Materials, TEIM 2016; Xi’an; China; 20 April 2016 through 22 April 2016; Code 188549, ISSN: 10139826
Xu, J., Zhang, Y., Lu, Q., Huang, Q., Xiao, C.
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 was 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 micrometers 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. © 2017 Trans Tech Publications, Switzerland.