Process for the production of carbon fiber paper

Details Process for the production of carbon fiber paper Process for the production of carbon fiber paper

C - Chemistry, Metallurgy

04

B

18/3

C04B 35/83 (2006.01) D21H 13/50 (2006.01) H01M 4/96 (2006.01)

Patent

CA 1041721

PROCESS FOR THE PRODUCTION OF CARBON FIBER PAPER Abstract of the Disclosure A carbon fiber paper is obtained by mixing carbon fibers, cellulosic pulp, organic fibers having a carbonaceous yield of not less than 20% and a paper sheet binder in relative amounts such that the ratio of the carbon fibers to the cellulosic pulp falls in the range of 40 - 90% by weight of carbon fibers to 60 - 10% by weight of cellulosic pulp, the ratio of the organic fibers to the combined weight of said carbon fibers and cellulosic pulp falls in the range of from 5 to 20% by weight and the ratio of the paper sheet binder to the combined weight of said carbon fibers, cellulosic pulp and organic fibers falls in the range of from 5 to 50% by weight, shaping the resultant mixture in the form of sheet to produce a mixed paper sheet, impregnating the mixed paper sheet with an organic high molecular weight substance and thereafter baking to carbonize the impregnated sheet at a temperature of not less than 800°C. in an inert gas. The carbon fiber paper thus produced is particularly advantageous for use as an electro-conductive element serving the purpose of a base sheet of electrodes in fuel batteries and electric dust collectors, as a heat-generating element in panel heaters, as a lining material in corrosion-proof containers, etc.

204360

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