Patent ID: 11203686

Abstract:
A polymer wax powder having a self-repairing function and a preparation method thereof, wherein the polymer wax powder is prepared from the following components in parts by weight: 55-75 parts of a polyethylene wax, 1-20 parts of an allyl bisphenol A diglycidyl ether epoxy resin, 0.5-2 parts of a hydroxyalkylamide, 0.5-5 parts of a silane coupling agent, 5-25 parts of a carboxyl-terminated saturated polyester, and 0.5-5 parts of an accelerator. The preparation method thereof includes steps of mixing components, melt extruding, micronizing and cross-linking by electron irradiation. A composite polymer wax micropowder with an average particle size of 1 μm-70 μm could be prepared by the above method; such wax micropowder may be used as a self-repairing functional additive for a polyester type or epoxy polyester type powder coating, thereby improving the surface hardness and stain resistance of the powder coating, and imparting a self-repairing function to the coating material.