Patent ID: 7465503

Claim:
A method for preparing a molding material for a fuel cell separator, comprising: dissolving epoxy resin, a hardener, and a hardening accelerator with silane as a binder in acetone as a solvent to obtain a solution; then adding graphite powder to said solution and mixing to obtain a mixture; drying said mixture at 30 to 60° C. for 1 to 6 hours to obtain a dried mixture; and grinding said dried mixture, wherein said hardener is an acid anhydride-based compound, said hardener is used in an amount of 30 to 85 parts by weight per 100 parts by weight of epoxy resin, said hardening accelerator is triphenyl phosphine, said hardening accelerator is used in an amount of 0.3 to 6 parts by weight per 100 parts by weight of epoxy resin, said graphite powder is a planar expanded graphite powder having a particle size between 0.005 and 0.15 mm, and the mixing is carried out using a mixer where revolution and rotation are simultaneously performed.