SUPEROLEOPHOBIC SUBSTRATES AND METHODS OF FORMING SAME

Superoleophobic substrates and methods of forming same are disclosed. The methods include providing a laser-ablatable substrate comprising glass and directing a laser beam to the substrate surface and laser-ablating at least a portion thereof to form an array of spaced-apart micropillars having side...

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Bibliographische Detailangaben
Hauptverfasser: MAZUMDER, PRANTIK, WAGNER, ROBERT S
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:Superoleophobic substrates and methods of forming same are disclosed. The methods include providing a laser-ablatable substrate comprising glass and directing a laser beam to the substrate surface and laser-ablating at least a portion thereof to form an array of spaced-apart micropillars having sidewalls. The laser beam is provided with sufficient energy to form on the sidewalls an irregular rough surface with re-entrant microscale and nanoscale features that render the substrate surface superoleophobic when coated with a low-surface-energy coating.