Carbon fiber reinforced coatings

D - Textiles – Paper – 06 – N

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D06N 7/00 (2006.01) B05D 5/12 (2006.01) B05D 7/00 (2006.01) E04F 15/12 (2006.01) H05B 3/14 (2006.01) H05B 3/34 (2006.01) H05F 1/00 (2006.01) H05F 3/00 (2006.01) H05F 3/02 (2006.01)

Patent

CA 2096235

Carbon fiber mats are embedded in a coating by first rolling on a coating of e.g. epoxy on the floor or wall, then applying sheets of fine carbon fibers, (optionally) removing the carbon fiber which is not adherent after the coating has dried, then applying one or more additional top coats of coating to additionally embed the carbon fibers. The result is an electrically conductive floor and/or wall coating system useful in antistatic rooms such as clean rooms, operating rooms, etc. Coatings can be solvent based or waterborne urethanes, epoxies, alkyds, polyethylenes, acrylics, vinyls, vinyl acetates, esters, polyesters, sulfones, polysulfones, silicones, polysilicones and others. The preferred mats are carbon fiber "veils" or "paper" generally having a density of about .75 oz./square yard.

On noie des fibres de carbone dans un revêtement en passant d'abord une couche d'un constituant époxy, par exemple, sur un sol ou sur un mur, puis en appliquant des feuilles de fibres de carbone fines, en enlevant éventuellement les fibres de carbone n'adhérant pas au revêtement après son séchage et en appliquant ensuite une ou plusieurs couches supérieures supplémentaires de revêtement pour noyer davantage les fibres de carbone. On obtient un revêtement de sol et/ou de mur électroconducteur et s'utilisant dans un environnement antistatique tel que des salles blanches, des salles d'opération, etc. Lesdits revêtements peuvent être à base d'uréthanes, époxys, alkydes, polyéthylènes, acryliques, vinyles, acétates de vinyle, esters, polyesters, sulfones, polysulfones, silicones, polysilicones ou autres, dans un base de solvant ou en suspension dans de l'eau. Les fibres de carbone préférées sont sous forme de "voiles" ou de "papier", dont la densité est généralement de 2,12 kg/0,84m2 environ (75 oz./square yard).

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