Open AccessThe Effects of Solvent Type on The Performance of Flat Sheet Polyethersulfone/Brij58 Membranes
Author(s) -
Mukramah Yusuf Wahab,
Syawaliah Muchtar,
Nasrul Arahman,
Sri Mulyati,
Medyan Riza
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/536/1/012119
Subject(s) - membrane , dimethylacetamide , solvent , phase inversion , dimethylformamide , chemical engineering , materials science , solubility , ultrafiltration (renal) , polymer chemistry , polymer , hildebrand solubility parameter , pulmonary surfactant , ultimate tensile strength , porosity , aqueous solution , chemistry , chromatography , composite material , organic chemistry , biochemistry , engineering
Selection of the appropriate solvent plays an important role in the characteristics of the membrane formation. Flat-sheet polyethersulfone (PES) membranes were formation via non-solvents induced phase separation (NIPS) technique. PES as a polymer, Brij58 as hydrophilic surfactant and three types of solvent were used to prepare the dope solution. This paper attempts to show the effects of three different solvents there are; dimethylsulfoxide (DMSO), dimethylformamide (DMF), and dimethylacetamide (DMAc) on characterizations and performance of fabricated membranes. The fabricated membranes in this study were characterized by measuring water contact angle and mechanical properties. The performance of fabricated membranes was carried out using a dead-end ultrafiltration module. Solubility between solvent and non-solvent is an essential factor in the membrane formation process. The porosity of membrane fabricated from the system of PES/Brij/DMAc was higher than membrane made from another system, so that the water permeability of this membrane was higher than others. The membrane fabricated with DMAc as solvent had a tensile strength of 12.42 kgf/mm 2 .