▎ 摘　　要

NOVELTY - Radiating electrostatic adsorption powder comprises 2 pts. wt. small-layer graphene flakes, 40-60 pts. wt. polymer resin, 5-55 pts. wt. inorganic mineral powder, and 0.1-5.0 pts. wt. auxiliary agent. The small-layer graphene flakes comprise graphene, cellulose nanocrystalline, surfactant, and water that are compounded according to certain mass ratio. It is prepared sequentially subjecting to high-pressure homogenizing, freeze-drying and high-temperature carbonizing. USE - The radiating electrostatic adsorption powder is used for metal heat-dissipating component. ADVANTAGE - The radiating electrostatic adsorption powder is directly sprayed on surface of metal heat-dissipating component via electrostatic spraying without using solvents, thus no waste is generated and use process is simple, while realizing high environmental protection. It forms coating on surface of metal heat-dissipating component that improves heat dissipation efficiency and corrosion resistance of metal heat dissipation component, while extending service life of metal heat dissipation component. It has heat dissipation function and simple operation steps. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of radiating electrostatic adsorption powder by stripping layer of graphene by mixing graphene, cellulose nanocrystalline, surfactant and water according to mass ratio in high-pressure homogenizer, and subjecting to high-pressure homogenizing and circulating reflux treatment to obtain suspension containing layer of graphene; preparing small-layer graphene flakes by freeze-drying suspension liquid containing layer of graphene, and carbonizing at high temperature; preparing radiating electrostatic adsorption powder by mixing small-layer graphene flakes with inorganic mineral powder, polymer resin, and auxiliary agent according to weight proportion; sequentially subjecting to high-temperature melting, mixing and plasticizing; crushing; and sieving to obtain radiating electrostatic adsorption powder with particle diameter of less than 80 mu m.