| abstract |
The invention discloses a graphite composite board and a preparation method thereof, and relates to the technical field of graphite materials. The graphite composite board comprises the following components in parts by weight: 50-80 parts of modified graphite powder, 45-70 parts of phenolic resin, 2-8 parts of polyamide resin, 10-30 parts of melamine modified phenolic resin, 1-4 parts of defoaming agent, 1-4 parts of curing agent, 2-8 parts of carbon black, 25-110 parts of ethanol and 3-10 parts of plasticizer; the preparation method comprises the following steps: (1) preparing slurry A; (2) preparing powder A; (3) preparing slurry B; (4) preparing powder B; (5) mixing the powder A and the powder B, and curing and molding. The graphite composite board has the advantages of high air tightness and high bending strength; in addition, the preparation method has the advantages of high mixing uniformity, and high air tightness and bending strength of the prepared graphite composite plate. |