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.)
Subjects: T Technology > TJ Mechanical engineering and machinery
Departments / MOR / COE: Engineering > Chemical
Depositing User: Mr Ahmad Suhairi Mohamed Lazim
Date Deposited: 30 Mar 2015 11:53
Last Modified: 15 May 2023 07:39
URI: http://utpedia.utp.edu.my/id/eprint/15294

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