Preparation and performance studies of modified PES/CA blend membrane with different additives composition

Zamzam, Nurul Izzaty (2017) Preparation and performance studies of modified PES/CA blend membrane with different additives composition. [Project Paper] (Submitted)

Text FK 2017 23.pdf Download (2MB)

Abstract

This research reported on the improvement of the polyethersulfone/cellulose acetate (PES/CA) blend membrane by adding either polyvinylpyrrolidone (PVP) or/and polyethylene oxide-b-polypropylene oxide-b-polyethylene oxide (Pluronic) as additives. Membranes were formulated from a casting solution of polymer polyethersulfone (PES) and cellulose acetate (CA), N-methyl-2-pyrrolidone (NMP) solvent and PVP or/and Pluronic additives by immersing them in water as coagulant medium. Experiments showed that when PVP is added, reading of pure water flux is greater due to the facilitated water pass-through caused by PVP as pore-forming agent. Addition of PVP also has caused a higher solute rejection in apple juice and tap water permeation. However, PVP does not show any significant enhancement in the mechanical properties of the modified membrane. Meanwhile, addition of Pluronic as additives results in solute rejection to be relatively low however, fouling effect is seen to be low as well, hence indicates good performance of membrane. Pluronic also recorded high percentage of flux recovery ratio (FRR) which is good because utilized membrane can be reuse for many times without critical fouling effect. In the meantime, the mechanical properties of these membranes are seen to be enhanced by the addition of Pluronic in term of breaking elongation, but poorly causes Young’s modulus to be low. Nonetheless, PES/CA membrane had also achieved the greatest tensile strength without needing for addition of additives

Item Type:	Project Paper
Faculty:	Faculty of Engineering
Depositing User:	Ms. AZLINA ZAINAL ABIDIN
Date Deposited:	01 Nov 2022 07:17
Last Modified:	10 Nov 2022 07:31
URI:	http://psaspb.upm.edu.my/id/eprint/546

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