▎ 摘　　要

NOVELTY - Carbon crystal plate, comprises a polymer resin layer (2), and a carbon crystal layer (1) attached to the polymer resin layer. The polymer resin layer is a polyurethane layer or a phenolic resin layer. The carbon crystal layer is formed by the condensation polymerization of polyacrylic acid, carbon crystal particles, graphene oxide particles and sodium carboxymethyl cellulose, at weight ratio of 65-70: 15-20: 5-10: 10-20. USE - Carbon crystal plate. ADVANTAGE - The carbon crystal plate has good brightness, high hardness, and good decorative effect, and no problem of cracking when the surface is engraved. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing a carbon crystal plate, which involves mixing polyacrylic acid, carbon crystal particles, graphene oxide particles and sodium carboxymethyl cellulose according to the stated weight ratio, and adding water and stirring to make a paste, utilizing a coating machine to coat the paste on a polymer resin plate, which is polyurethane plate or a phenolic resin plate, and performing vacuum thermal polycondensation at 100-110 degrees C to solidify the paste on the polymer resin plate to form a carbon crystal layer. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a carbon crystal plate. Carbon crystal layer (1) Polymer resin layer (2)