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Failure Mechanisms of Hollow Fiber Supported Ionic Liquid Membranes

1
National Energy Technology Laboratory, 3610 Collins Ferry Road, Morgantown, WV 26507, USA
2
AECOM Technology Corporation, 626 Cochrans Mill Road, Pittsburgh, PA 15236, USA
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Author to whom correspondence should be addressed.
Academic Editor: Clàudia Fontàs
Membranes 2016, 6(2), 21; https://doi.org/10.3390/membranes6020021
Received: 29 January 2016 / Revised: 9 March 2016 / Accepted: 11 March 2016 / Published: 23 March 2016
(This article belongs to the Special Issue Advances in Liquid Membranes 2016)
Hollow fiber supported ionic liquid membranes (SILMs) were tested using the bubble point method to investigate potential failure modes, including the maximum transmembrane pressure before loss of the ionic liquid from the support. Porous hollow fiber supports were fabricated with different pore morphologies using Matrimid® and Torlon® as the polymeric material and 1-hexyl-3-methylimidalzolium bis(trifluoromethylsulfonyl)imide ([C6mim][Tf2N]) as the ionic liquid (IL) component. Hollow fiber SILMs were tested for their maximum pressure before failure, with pressure applied either from the bore side or shell side. It was found that the membranes exhibited one or more of three different modes of failure when pressurized: liquid loss (occurring at the bubble point), rupture, and collapse. View Full-Text
Keywords: supported ionic liquid membrane; hollow fiber; stability; failure mode; bubble point; rupture; collapse supported ionic liquid membrane; hollow fiber; stability; failure mode; bubble point; rupture; collapse
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Zeh, M.; Wickramanayake, S.; Hopkinson, D. Failure Mechanisms of Hollow Fiber Supported Ionic Liquid Membranes. Membranes 2016, 6, 21.

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