Carbon composite material and process for production thereof

Details Carbon composite material and process for production thereof Carbon composite material and process for production thereof

C - Chemistry, Metallurgy

08

K

C08K 3/04 (2006.01) C04B 35/52 (2006.01) C04B 35/524 (2006.01) C04B 35/536 (2006.01) H01B 1/20 (2006.01)

Patent

CA 2177539

The present invention provides: a carbon composite material which is a molded mate- rial comprising (a) an expanded graphite powder and (b) a ther- moplastic resin or a thermosetting resin or a fired product of the thermosetting resin, and the expanded graphite powder (a) being dispersed in the component (b), wherein the expanded graphite powder has an average particle diameter of 5-12 µm and at least 80% of the total particles of the expanded graphite powder have particle diameters of 0.1-20 µm; and a process for producing a carbon composite material, which comprises mixing and dispersing a thermoplastic or thermo- setting resin and the expanded graphite powder as mentioned above, and then pressure-molding the resulting mixture at room temperature to 400°C, or a process for producing a carbon com- posite material, which comprises mixing and dispersing a thermo- setting resin and the expanded graphite powder as mentioned above, pressure-molding the resulting mixture at room tempera- ture to 400°C, and firing the resulting molding at 700-3,000°C in a non-oxidizing atmosphere. The carbon composite material produced by the above process is free from the problems of the prior art and is supe- rior in both gas non-permeability and electroconductivity.

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