Electroconductive carbon fibril-based inks and coatings

Details Electroconductive carbon fibril-based inks and coatings Electroconductive carbon fibril-based inks and coatings

H - Electricity

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H01B 1/18 (2006.01) B32B 5/02 (2006.01) B32B 27/20 (2006.01) C09D 5/24 (2006.01) C09D 11/00 (2006.01) H01B 1/04 (2006.01) H01B 1/20 (2006.01) H01B 1/24 (2006.01) H01C 17/065 (2006.01)

Patent

CA 2489423

The present invention relates to electroconductive inks and methods of making and using the same. The electroconductive inks include carbon fibrils and a liquid vehicle. The electroconductive ink may further include a polymeric binder. The electroconductive filler used is carbon fibrils which may be oxidized. The ink has rheological properties similar to that of commercially available electroconductive inks that use carbon black as their filler. The ink can be screen-printed, slot-coated, sprayed, brushed or dipped onto a wide variety of substrates to form an electroconductive coating.

L'invention concerne des encres électro-conductrices et leurs procédés de fabrication et d'utilisation. Lesdites encres électro-conductrices comprennent des fibrillés de carbone et un véhicule liquide. L'encre électro-conductrice peut comprendre de plus un liant polymère. La charge électro-conductrice utilisée est le fibrillé de carbone qui peut être oxydé. L'encre présente des propriétés rhéologiques similaires à celles des encres électro-conductrices commercialisées, utilisant du noir de carbone en tant que charge. L'encre peut être sérigraphié, enduit par tranche, pulvérisé, brossé ou immergé sur une grande variété de substrats pour former un revêtement électro-conducteur.

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