APPARATUS, METHODS, AND FLUID COMPOSITIONS FOR ELECTROSTATICALLY-DRIVEN SOLVENT EJECTION OR PARTICLE FORMATION

A method comprises introducing a fluid composition into one or more electrically insulating emitters, and applying voltage to the fluid to cause ejection of the solvent from the fluid after it exits the emitter. The fluid composition comprises first material having a dielectric constant greater than...

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Bibliographische Detailangaben
Hauptverfasser:	LAZAREVA, TATIANA, KOSLOW, EVAN E, TINDALE, JOCELYN J, LOTUS, ADRIA F, ROBERTSON, JOHN A, SCOTT, ASHLEY S, WASHINGTON, ANDREW L., JR, BISHOP, MICHAEL J
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CORRECTION OF TYPOGRAPHICAL ERRORS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES NOZZLES PERFORMING OPERATIONS PRINTING SELECTIVE PRINTING MECHANISMS SPINNING SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL STAMPS TEXTILES TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A method comprises introducing a fluid composition into one or more electrically insulating emitters, and applying voltage to the fluid to cause ejection of the solvent from the fluid after it exits the emitter. The fluid composition comprises first material having a dielectric constant greater than ~25 and polymer mixed into liquid solvent having a dielectric constant less than ~15, or polymer mixed into solvent having a dielectric constant greater than ~8. Voltage can be applied to the fluid composition via a conductive electrode immersed in the fluid, or positioned outside and adjacent to the emitters. Conductivity of the fluid composition can be less than ~100 µS/cm. A composition of matter comprises nanofibers formed by the method.