▎ 摘　　要

NOVELTY - Thermal conductive coating comprises 20-25 pts. wt. polyacrylic resin, 12-18 pts. wt. epoxy resin emulsion, 6-12 pts. wt. fluorosilane, 10-15 pts. wt. ultrafine diatomaceous earth, 3-6 pts. wt. lignosulfonic acid, 6-12 pts. wt. graphene nanochips, 5-10 pts. wt. modified carbon fibers, 4-9 pts. wt. carbon nanotubes, 4-9 pts. wt. zirconium phosphate-loaded silver powder, 3-6 pts. wt. triethylenetetramine, 4-8 pts. wt. nano-alumina, 1.5-2.5 pts. wt. silane coupling agent, 1.5-2.5 pts. wt. antioxidant, 1.5-2.5 pts. wt. heat stabilizer and 8-15 pts. wt. water. The modified carbon fiber is prepared by immersing the carbon fiber in concentrated nitric acid, stirring and mixing uniformly, heating to 75-85 degrees C, stirring at 500-800 revolutions per minute for 120-150 minutes, placing the treated carbon fiber in an oven at 120-140 degrees C after repeatedly cleaning with deionized water, and drying for 6-8 hours to obtain the modified carbon fiber. USE - Thermal conductive coating for electronic products. ADVANTAGE - The thermal conductive coating has good coating property, good adhesion, good thermal conductivity and corrosion resistance through cooperation between raw materials. DETAILED DESCRIPTION - The method for preparing thermal conductive coating, which involves: (A) weighing each raw material according to a thermal conductive coating formulation of the electronic product; (B) adding triethylenetetramine, silane coupling agent, antioxidant and heat stabilizer into water, stirring and mixing uniformly to obtain a mixture A; (C) adding ultra-fine diatomaceous earth, lignin sulfonic acid, graphene nano-microchips, modified carbon fiber, carbon nanotubes, zirconium phosphate-supported silver powder and nano-alumina to a high-speed mixer at a speed of 500-800 revolutions per minute, stirring for 10-16 minutes to obtain a mixture of B; and (D) adding polyacrylic resin, epoxy resin emulsion, fluorosilane to the mixture A, heating to 50-60 degrees C, stirring at a speed of 800-1200 revolutions per minute for 8-15 minutes, adding mixture B, stirring for 18-25 minutes, cooling to room temperature to obtain thermal conductive coating.