| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coating material for a fuel cell separator, capable of forming an electroconductive coating film having proper corrosion resistance, electrical conductivity, and strong adherence. <P>SOLUTION: In the coating material for the fuel cell separator forming the electroconductive coating film, by using graphite as an electroconductive material and applying on the surface of a metallic or carbon separator for the fuel cell, 5 wt.% or higher one among the emulsions of styrene-butadine copolymer, acrylic-styrene copolymer, and acylic-silicone copolymer is contained as a binder for the coating material, a solvent having solubility with the binder is used as a medium, the mixing ratio of the electroconductive material and the binder is set at 20:80 to 95:5, and the solid content in the coating material is set at 10-60 wt.%. <P>COPYRIGHT: (C)2008,JPO&INPIT |
