| 摘要 |
The method includes dispensing carbon fibers having a length of between about 3 and 12 millimeters from a first hopper into a raizing chamber of a double-hopper, bladed-roiler scattering machine and simultaneously depositing a thermoset resin powder from a second hooper of the scattering machine into the mixing chamber where in the fibers and powder are mixed to homogenous predetermined proportions of between about 40% and 60% each. Then, the mixture is directed to flew onto a moving support belt of a double belt press apparatus and the mixture is compressed between the moving support belt and a moving compression belt of the double belt press apparatus and the mixture passes between the belts for an adequate residence time duration to first melt and then cure the thermoset resin to form the fuel cell precursor substrate. Carbonizing and then graphitizing the precursor substrate forms the final substrate. |
