SUPEROLEOPHOBIC SUBSTRATES AND METHODS OF FORMING SAME

Superoleophobic substrates (110) and methods of forming same are disclosed. The methods include providing a laser-ablatable substrate (10) comprising glass and directing a laser beam (122) to the substrate surface (12) and laser-ablating at least a portion thereof to form an array of spaced-apart mi...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	MAZUMDER, PRANTIK, WAGNER, ROBERT S
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY MINERAL OR SLAG WOOL PERFORMING OPERATIONS SOLDERING OR UNSOLDERING SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WELDING WORKING BY LASER BEAM
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Superoleophobic substrates (110) and methods of forming same are disclosed. The methods include providing a laser-ablatable substrate (10) comprising glass and directing a laser beam (122) to the substrate surface (12) and laser-ablating at least a portion thereof to form an array of spaced-apart micropillars (232) having sidewalls (233). 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 (246). L'invention concerne des substrats superoléophobes (110) et des procédés pour les former. Les procédés comprennent le fait de fournir un substrat susceptible d'être ablaté au laser (10) comprenant du verre, de diriger un faisceau laser (122) vers la surface du substrat (12) et d'effectuer l'ablation au laser d'au moins une partie de celui-ci pour former un réseau de micropiliers (232) espacés les uns des autres ayant des parois latérales (233). Le faisceau laser est alimenté par une énergie suffisante pour former sur les parois latérales une surface rugueuse irrégulière avec des caractéristiques rentrantes à l'échelle microscopique et nanoscopique qui rendent la surface de substrat superoléophobe lorsqu'elle est revêtue d'un revêtement à faible énergie de surface (246).