Conformal coatings comprising carbon nanotubes

Details Conformal coatings comprising carbon nanotubes Conformal coatings comprising carbon nanotubes

G - Physics

21

F

G21F 1/10 (2006.01) C09D 5/00 (2006.01) C09D 7/12 (2006.01) H01B 1/02 (2006.01) H01B 1/04 (2006.01) H01B 1/16 (2006.01) H01B 1/20 (2006.01) H01B 1/24 (2006.01) H05K 9/00 (2006.01) B05D 5/12 (2006.01) B05D 7/00 (2006.01)

Patent

CA 2471842

The invention is directed to conformal coatings that provide excellent shielding against electromagnetic interference (EMI). A conformal coating .comprises an insulating layer and a conducting layer containing electrically conductive material. The insulating layer comprises materials for protecting a coated object. The conducting layer comprises materials that provide EMI shielding such as carbon black, carbon buckeyballs, carbon nanotubes, chemically-modified carbon nanotubes and combinations thereof. The insulating layer and the conductive layer may be the same or different, and may be applied to an object simultaneously or sequentially. Accordingly, the invention is also directed to objects that are partially or completely coated with a conformal coating that provides EMI shielding.

L'invention concerne des revêtements conformes offrant une excellente protection contre les interférences électromagnétiques. Un revêtement conforme selon l'invention contient une couche d'isolation et une couche conductrice contenant un matériau électroconducteur. La couche d'isolation contient des matériaux destinés à protéger un objet revêtu. La couche conductrice contient des matériaux offrant une protection contre les interférences électromagnétiques, tels que du noir de carbone, des billes de carbone, des nanotubes de carbone, des nanotubes de carbone chimiquement modifiés et des combinaisons de ceux-ci. La couche d'isolation et la couche conductrice peuvent être identiques ou différentes et peuvent être appliquées de manière simultanée ou séquentielle sur un objet. L'invention concerne également des objets partiellement ou entièrement revêtus avec des revêtements conformes offrant une protection contre les interférences électromagnétiques.

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