Nanofiber enhanced functional film manufacturing method...

D - Textiles – Paper – 04 – H

Patent

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D04H 1/56 (2006.01)

Patent

CA 2722552

The present invention generally relates to a method for producing hybrid materi-als of thin polymer films with single, laminated, complete and/or partially embedded nanofibers to obtain products with unique functional prop-erties. In one embodiment, the present relates to a hybrid process that utilizes both melt casting and electrospinning to produce nanofiber embed-ded functional films. In another embodiment, the process of the present invention involves nanofiber-containing products that are formed by producing a plurality of nanofibers via one or more nanofiber producing nozzles; depositing such nanofibers onto a melt cast polymer film; and either partially and/or completely embedding such nanofibers into the melt cast polymer film via one or more electrical forces.

La présente invention concerne globalement un procédé qui permet de fabriquer des matières hybrides de films polymères minces dotés de nanofibres, lesdites nanofibres pouvant être seules, feuilletées, ou bien complètement et/ou partiellement incorporées dans ces films afin dobtenir des produits aux propriétés fonctionnelles uniques. Dans un mode de réalisation, ce procédé de fabrication hybride basé à la fois sur le coulage et lélectrofilage permet dobtenir des films fonctionnels dans lesquels sont incorporées des nanofibres. Dans un autre mode de réalisation, le procédé implique des produits contenant des nanofibres obtenus par fabrication dune pluralité de nanofibres à laide dune ou plusieurs buses de fabrication de nanofibres, dépôt de ces nanofibres sur un film polymère coulé, et incorporation partielle et/ou complète desdites nanofibres dans ce dernier grâce à une ou plusieurs forces électriques.

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