%0 Journal Article
%@ 22279717
%A Jamil, A.
%A Ching, O.P.
%A Naqvi, M.
%A Aslam Khan, H.A.
%A Naqvi, S.R.
%D 2020
%F scholars:13977
%I MDPI AG
%J Processes
%N 1
%R 10.3390/pr8010118
%T Polyetherimide-montmorillonite nano-hybrid composite membranes: CO2 permeance study via theoretical models
%U https://khub.utp.edu.my/scholars/13977/
%V 8
%X The incorporation of aminolauric acid modified montmorillonite (f-MMT) in polyetherimide (PEI) has been implemented to develop hollow fibre nano-hybrid composite membranes (NHCMs) with improved gas separation characteristics. The aforementioned characteristics are caused by enhanced f-MMT spatial dispersion and interfacial interactions with PEI matrix. In this study, existing gas permeation models such as, Nielsen, Cussler, Yang-Cussler, Lape-Cussler and Bharadwaj were adopted to estimate the dispersion state of f-MMT and to predict the CO2 permeance in developed NHCMs. It was found out that the average aspect ratio estimated was 53, with 3 numbers of stacks per unit tactoid, which showed that the intercalation f-MMT morphology is the dominating dispersion state of filler in PEI matrix. Moreover, it was observed that Bharadwaj model showed the least average absolute relative error (AARE) values till 3 wt.  f-MMT loading in the range of ±10 for a pressure range of 2 to 10 bar. Hence, Bharadwaj was the best fit model for the experimental data compared to other models, as it considers the platelets orientation. © 2019 by the authors.
%Z cited By 2