Publication de 12 numéros par an
ISSN Imprimer: 1091-028X
ISSN En ligne: 1934-0508
Indexed in
PERMEABILITY ESTIMATION OF NANO-POROUS MEMBRANES FOR NONWETTING FLUIDS
RÉSUMÉ
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.
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