Pebax Mixed Matrix Membrane Containing Triton X-100 Dispersed Multi-Walled Carbon Nanotube for Gas Separation

Poly ether-block-amide (Pebax-1657) is an applicable polymeric membrane material for gas separation applications like CO2/N2 and O2/N2 separation. In order to improve the gas separation properties of the Pebax-1657 membrane and develop a membrane with improved performance, carbon nanotubes (CNTs) filler was incorporated into the polymer matrix. In this study, the gas separation performance of Pebax-1657 and Pebax-1657/Triton X100 functionalized multi-walled carbon nanotubes (MWCNTs) membranes which were prepared by phase inversion method was investigated. The gas transport properties was determined for CO2, N2 and O2 gases at different pressures and temperatures. The gas permeation results showed that the incorporation of the Triton X100 functionalized MWCNTs into the Pebax-1657 had significant influence on the separation performance of the membranes and led to significant increase in the selectivity of CO2/N2 and O2/N2.