Abstract
This paper presents a generic technology allowing the incorporation of functional entities into a porous substrate. Ion exchange particles were incorporated into an ethylene vinyl alcohol (EVAL) copolymer porous matrix by a dry-wet spinning process and a heterogeneous matrix, composed of solid particles surrounded by a polymeric film, was formed. Hydrophilic ethylene vinyl alcohol copolymer (EVAL) and cation exchange resin D061 powder used as matrix material for hollow fiber membrane and functional particles, respectively, resins with different loading were prepared to fill EVAL hollow fiber membrane adsorbents. The membrane adsorbents were characterized with respect to their morphology, porosity, pure water flux (PWF), and rejection rate. Micro morphology was observed by the scanning electron microscope method. Effects of resin load on the performance of membrane adsorbents were mainly discussed. The experimental results showed that PWF and porosity increased and retention coefficient decreased with higher resin loading.
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