| 摘要 |
A method for preparing a material for a fuel cell separator, a fuel cell separator prepared by using the material, and a fuel cell containing the separator are provided to improve electrical conductivity and to enhance the uniformity of physical properties. A method for preparing a material for a fuel cell separator comprises the steps of dissolving a phenol resin, an unsaturated polyester resin, a UPE or an epoxy resin as a thermosetting resin acting as a binder, an amine-based or acid anhydride-based curing agent and a curing accelerator such as triphenylphosphine or silane in methanol, ethanol or acetone as an organic solvent; dispersing a graphite powder in the obtained solution; drying it; and pulverizing the dried one, wherein 0.1-10 wt% of carbon black is mixed with the organic solvent before the graphite powder is added to allow the thermosetting resin to act as a dispersant. The drying is carried out at 40-80 deg.C in vacuum for 0.5-8 hours. |
