▎ 摘　　要

NOVELTY - Powder coating comprises 100 pts. wt. epoxy resin, 0.2-3 pts. wt. graphene, 2-8 pts. wt. dispersant, 3-10 pts. wt. photoinitiator, 5-20 pts. wt. filler, 1-35 pts. wt. silane coupling agent, 0.2-1.0 pts. wt. defoamer, 1-5 pts. wt. leveling agent and 1.5-5 pts. wt. curing agent. USE - Powder coating used for the surface of wood products. ADVANTAGE - The powder coating does not contain harmful components such as volatile organic compound and not cause deformation to the heat sensitive substrate, is environment-friendly and safe, has high glossiness, achieves good decorative purpose, coating adhesive force, hardness, wear resistance and good physical and chemical properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a spraying powder coating, which involves: (A) attaching protective layer to the four sides of the board; (B) polishing the surface of the board to make the surface smooth; (C) spraying a layer of paint on the surface of the wood board, and form a coating layer with a thickness of 1-3 micrometer after curing, which is used to enhance the conductivity of the wood board surface; (D) polishing and dust removal of the coating layer to make the surface smooth; (E) transferring the wood board to a preheating furnace for preheating, the temperature of the preheating furnace is set to 90-110 degrees C, and the preheating time is 5-10 minutes; (F) transferring the wood board to the powder spraying room, and spraying the powder on the surface of the wood board with an electrostatic spray gun to form a powder coating on the surface of the wood board, the relative humidity is 85%; and (G) transferring the electrostatically sprayed wood board to an infrared radiation furnace, filling infrared radiation furnace with high-temperature gas, curing powder coating quickly under the simultaneous action of high-temperature gas and infrared rays, forming a thickness of 100120 micrometer on the surface of coating film.