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Journal of Porous Media
Импакт фактор: 1.49 5-летний Импакт фактор: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN Печать: 1091-028X
ISSN Онлайн: 1934-0508

Выпуски:
Том 22, 2019 Том 21, 2018 Том 20, 2017 Том 19, 2016 Том 18, 2015 Том 17, 2014 Том 16, 2013 Том 15, 2012 Том 14, 2011 Том 13, 2010 Том 12, 2009 Том 11, 2008 Том 10, 2007 Том 9, 2006 Том 8, 2005 Том 7, 2004 Том 6, 2003 Том 5, 2002 Том 4, 2001 Том 3, 2000 Том 2, 1999 Том 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.v13.i4.30
pages 319-329

PERMEABILITY ESTIMATION OF NANO-POROUS MEMBRANES FOR NONWETTING FLUIDS

Solange C. Amouroux
Center for Composite Materials, and Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
Dirk Heider
Center for Composite Materials, and Department of Electrical and Computer Engineering, University of Delaware, Newark, Delaware 19716, USA
John W. Gillespie Jr.
Center for Composite Materials, Department of Materials Science and Engineering, Department of Civil and Environmental Engineering, University of Delaware, Newark, DE 19716, USA

Краткое описание

The permeability behavior of nanoporous membranes is investigated. A novel data reduction scheme for extrusion porometry is used to obtain a statistically based pore size distribution from the porometer flow data. The permeability is calculated from the distribution and constituent properties of the membrane/resin interactions. The study characterizes a commercially available extended polytetrafluoroethylene membrane and evaluates the effective permeability based on the membrane properties, contact angle between the wetting fluid and membrane, and applied pressure. A sensitivity analysis shows that in the case of nonwetting fluids the membrane permeability is not a material constant, but varies as a function of the selected fluid and process pressure.

Ключевые слова: permeability, EPTFE membrane, porometer

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