Preparation and Characterization of Newly Developed Polysulfone/Polyethersulfone Blend Membrane for CO₂ Separation

Abstract:

Polymeric membranes suffer from so called upper bound tradeoff between permeability and selectivity as described by Robeson. Polymer blending is a valuable technique to tune the properties of polymeric membranes by physical mixing of different polymers in a single mixture. In this study, preparation and characterization of newly developed polysulfone/polyethersulfone (PSF/PES) blend flat sheet dense membranes is described for CO₂/CH₄ separation. Blend membranes with different blending ratios were prepared and the developed membranes were characterized by FESEM, FTIR and TGA to see the effect of blend ratio on morphology, bonding and thermal stability respectively. Permeability of CO₂ and CH₄ gases in pressure range of 2-10 bar is recorded to find out the ideal selectivity of prepared membranes. The results are discussed and compared with individual polymer membranes.

• Periodical: Applied Mechanics and Materials (Volume 699)
• Pages: 325-330
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.699.325
• Online since: November 2014
• Authors: Hafiz Abdul Mannan*, Hilmi Mukhtar, Thanabalan Murugesan
• Keywords: Blend Membrane, Gas Separation, Permeability, Phase Behavior, Selectivity

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