Fabrication and characterization of zeolite/polymer mixed matrix nano-composite hollow fiber membranes

Tai Shung Chung, Lan Ying Jiang, Yi Li, Santi Kulprathipanja

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Organic and inorganic polymer nano-composites have received world-wide attention during last two decades. This is due to the fact that the resultant materials may offer superior performance in terms of mechanical toughness for engineering resins, permeability and selectivity for gas/liquid separation, and photoconductivity for electronics. Nanocomposites made of polymers, metals, and ceramics have been employed widely in healthcare industry to substitute degenerated tissues or organs. Basically, the nanopolymeric composites formed by incorporating an active material into a polymer matrix, thus combine and synergize the properties of two components for practical applications. We will give a review on the fabrication and characterization of polymer-molecular sieve mixed matrix membranes (MMMs) in this presentation. The molecular sieves involved were various sizes of zeolite. Compared with the pure polymer membranes, these MMMs possessed the enhanced gas separation performance, especially at high zeolite loadings. A new modified Maxwell model will be proposed to combine the effects of polymer chain rigidification and partial pore blockage of zeolites into calculation. The new model shows much consistent permeability and selectivity predication with experimental data. Dual-layer hollow fibers with a thin zeolite/polymer mixed matrix outer selective layer have been developed by the co-extrusion technology. The effect of processing conditions on particle distribution and the membrane separation will be presented. It is believed that the heat treatment and a two-step coating process contribute together to bring out the superior separation properties of zeolite beta imbedded in the polymer matrix.

Original languageEnglish (US)
Title of host publication05AIChE
Subtitle of host publication2005 AIChE Annual Meeting and Fall Showcase, Conference Proceedings
Pages2128
Number of pages1
StatePublished - 2005
Event05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States
Duration: Oct 30 2005Nov 4 2005

Other

Other05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
CountryUnited States
CityCincinnati, OH
Period10/30/0511/4/05

ASJC Scopus subject areas

  • Engineering(all)

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