Incorporating PIM-1 as organic filler to improve gas transport properties of Ultem polyetherimide flat sheet membranes and hollow fibers

Lin Hao, Tai Shung Chung*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Ultem/PIM-1 blend flat films were fabricated and their physiochemical and gas transport properties were studied. The permeability of the membranes was tested for pure gases including He, N2, O2, CH4, CO2, and mixed gases, e.g., CO2/CH4 and CO2/N2. The gas permeability improved significantly when adding only 5 or 10 wt% PIM-1 into Ultem without much sacrifices of the gas pair selectivity, where the CO2 permeability increased 47 and 167%, respectively. At higher PIM-1 loadings (> 90 wt%), the permeability followed the trend of the Maxwell prediction because of the good dispersion of Ultem inside PIM -1. The incorporation of 5 wt % PIM-1 inside the outer layer resulted in a 50% increment in the gas permeance, and > 100% increment by adding 15 wt% PIM-1. The gas pair selectivity for both O2/N2 and CO2/CH4 remained above 80% for blends with PIM-1 ≤ 15 wt %. This is an abstract of a paper presented at the International Gas Union Research Conference (IGRC 2014) (Copenhagen, Denmark 9/17-19/2014).

Original languageEnglish (US)
Pages (from-to)2442-2451
Number of pages10
JournalInternational Gas Research Conference Proceedings
Volume3
Issue numberJanuary
StatePublished - 2014
Externally publishedYes

Keywords

  • Defect free
  • Dual-layer
  • Hollow fiber
  • Model prediction
  • Ultem/PIM-1 polymer blend

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

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