The present invention discloses a graphene powder coating for containers and a preparation method thereof, relating to the technical field of powder coatings for containers. The raw materials including epoxy resin, curing agent, catalyst, leveling agent, degassing agent, wetting and brightening agent, surface modifier, filler, zinc powder and graphene are weighed in parts by weight; the raw materials are fed into an automatic mixer and stirred to obtain a uniformly mixed raw material A; the raw material A is fed into a twin-screw extruder for heating, extruded in a molten state, cooled and tableted to obtain a sheet B; a flow aid is added to the sheet B, the mixture is fed into a pulverizer for grinding, and a powder coating C is obtained through a vibrating screen; the powder coating C is electrostatically sprayed on a surface-treated substrate and baked to obtain a complete coating film. The preparation method of the present invention is simple and convenient. The prepared graphene powder coating greatly reduces the dosage of zinc powder while ensuring the anti-corrosion performance of the coating film, improves the utilization rate of zinc powder, reduces dust pollution during construction, enhances the strength of the coating film, and has broad application prospects.
Country Code: CN
Application Number: CN202410347795.7
