to fabricate polymeric membranes. In spite of the advantages of the TIPS method, it has not reported any attempt to fabricate PVDF-CTFE membrane by TIPS method either in flat-sheet or hollow fiber geometry. In this study, we attempted to prepare a hollow fiber...

A porous poly -ethylene-chlorotrifluoroethylene- -ECTFE- hollow fiber membrane with a high performance were prepared using HALAR® ECTFE 901 and different diluents diethyl phthalate -DEP- and glycerol triacetate -GTA-. When the ECTFE concentration...

/GTA- showed a liquid–liquid -L-L- phase separation region, prior to solid– liquid -S-L- phase separation -polymer crystallization-. The morphologies of hollow fiber membranes were observed by scanning electron microscopy -SEM- and it was observed that a...

Abstract: In this study, a new method was applied to achieve an efficient surface modification of Polyacrylonitrile (PAN) hollow fiber membrane. The surface modification dealt by immersion of PAN hollow fibers in hydroxylamine solution under various...

In this study, a new approach to improve antifouling performance of polyacrylonitrile (PAN) hollow fiber membrane has been explained. Firstly, chemical modification with sodium hydroxide (NaOH) solution was performed on PAN membranes in various...

of homogenous ECTFE solutions with the required properties for fabricating a hollow fiber membrane. The thermodynamic phase diagrams for both systems (ECTFE/DEP and ECTFE/GTA) showed a liquid–liquid (L-L) phase separation region, which is needed for a...

with the larger pores near the outer surface were obtained. This is due to the enhanced pore growth by the water penetration into the hollow fiber membrane because the good compatibility between glycerol and water. The water permeability could also be improved...

Using the thermal induced phase separation -TIPS- and non-solvent induced phase separation -NIPS- are the most common methods to fabricate polymeric porous membranes. Each method has own advantages and disadvantages. In ...