SURFACE-MODIFIED FLUOROPOLYMER MEMBRANE AND METHOD OF ITS PRODUCTION

SURFACE-MODIFIED FLUOROPOLYMER MEMBRANE AND METHOD OF ITS PRODUCTION

A method for use in the manufacture of a filtration article includes providing a porous, fluoropolymer membrane, and applying a force to at least a portion of a first side surface of the membrane to modify the first side surface. The applied force may have a non-normal directional component relative...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MCCLARY, BRADLEY, MARSHALL, PODDAR, TARUN
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Beschreibung
Zusammenfassung:A method for use in the manufacture of a filtration article includes providing a porous, fluoropolymer membrane, and applying a force to at least a portion of a first side surface of the membrane to modify the first side surface. The applied force may have a non-normal directional component relative to the first side surface. The surface modification may increase the density of the modified surface and/or reduce the porosity of the modified surface. Particle retention capabilities are thereby enhanced across the modified surface while maintaining permeability across the volume of the membrane.