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SYNTHESIS, CHARACTERIZATION AND EVALUATION OF MIXED MATRIX MEMBRANES FOR C02 SEPARATION

RAFIQ , SIKANDER (2013) SYNTHESIS, CHARACTERIZATION AND EVALUATION OF MIXED MATRIX MEMBRANES FOR C02 SEPARATION. PhD thesis, Universiti Teknologi PETRONAS.

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Abstract

The use of membrane technology for gas separation applications has been successfully employed since the last few decades. For efficient separation of CO2/CH4, high performance gas separating membranes is desired. For CO2 separation, asymmetric flat sheet membranes are preferred because of their high gas permeance as compared to dense films. In this study, various composition of polyimide (PI) ranging from 5 to 20 wt.% were blended with polysulfone (PSF) and used for the formation of asymmetric flat sheet membranes via dry/wet phase inversion technique. Morphological analysis indicated that the surfaces of the fabricated membrane blends possessed homogenous surfaces and their cross-sections showed a non-porous top and a diminutive porous substructure. Differential scanning calorimetry (DSC) analysis showed the existence of single glass transition temperature (Tg) for different membrane blends which indicated miscibility among the polymeric blends. Mechanical analysis showed improvement in young's modulus, tensile strength and elongation at break properties with the increase in PI composition in the membrane blends.

Item Type: Thesis (PhD)
Academic Subject : Academic Department - Mechanical Engineering - Materials - Engineering materials - Metals alloys - Fabrication
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Chemical
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 30 Mar 2015 11:53
Last Modified: 25 Jan 2017 09:39
URI: http://utpedia.utp.edu.my/id/eprint/15294

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