Study on the effect of spinning conditions and surface treatment on the geometry and performance of polymeric hollow-fibre membranes

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DOIResolve DOI: http://doi.org/10.1016/0376-7388(94)00134-K
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TypeArticle
Journal titleJournal of Membrane Science
Volume100
Issue3
Pages183192; # of pages: 10
SubjectHollow-fibre membranes; Performance; Surface treatment; Spinning conditions
AbstractHollow-fibre membranes were prepared by the wet-dry spinning technique from polyether sulfone (PES). The effect of spinning conditions such as the flow-rate of the internal coagulant and the flow-rate, composition and temperature of the polymer solution on the geometry and performance of hollow fibres was studied. In particular, five different ratios of pore former/polymer covering the range 0.2-1.0 were investigated while the polymer content was kept constant. Since the viscosity of the spinning dope affects the morphology of the hollow-fibre membrane, hollow fibres were prepared at different temperatures of the spinning dope from 25 to 60°. By scanning electron microscopy (SEM) two layers sandwiching a finger-like cavity structure were observed. Also, the surface on the bore side of the hollow fibre was modified by grafting polyethylene glycol (PEG) with γ-ray irradiation to improve the ultrafiltration performance.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC)
Peer reviewedYes
NRC number37588
NPARC number15787716
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Record identifier363cd483-6e26-48a9-abb6-9024417dd1ad
Record created2010-07-07
Record modified2016-05-09
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