▎ 摘　　要

NOVELTY - The carbon quantum dot composite powder modified aqueous coating comprises 25-40 pts. wt. aqueous resin, 3-15 pts. wt. modified carbon quantum dots, 1-5 pts. wt. a dispersant, 0.3-0.7 pts. wt. a defoaming agent, 0.5-4 pts. wt. a high molecular polymer, 0.5-2 pts. wt. a corrosion inhibitor, 5-20 pts. wt. a filler, 5-30 pts. wt. an amine compound and 3-15 pts. wt. an auxiliary agent. USE - Carbon quantum dot composite powder modified aqueous coating. ADVANTAGE - The carbon quantum dot composite powder modified aqueous coating has good compatibility with the aqueous resin, is uniformly dispersed and stably exist in a system, so that the obtained aqueous coating has excellent hardness, impact resistance, wear resistance, adhesive force and corrosion resistance, is quick in film forming property, quick in thixotropy, waterproof property and covering power, is well improved, improves ultraviolet resistance, aging resistance, bacteriostatic action and weather resistance, and prolongs the service life. In addition, the aqueous coating has good storage stability and can be stored for a long time under conventional conditions. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of the carbon quantum dot composite powder modified aqueous coating, which involves: (1) preparing modified carbon quantum dots; and (2) stirring and mixing the modified carbon quantum dots with aqueous resin, dispersant, defoaming agent, high molecular polymer, corrosion inhibitor and filler, adding the amine compound and auxiliary agent, and mixing.