▎ 摘　　要

NOVELTY - An aqueous solar-heat-absorbing coating comprises 80-90 pts. wt. silicone acrylic emulsion, 5-20 pts. wt. graphene, 5-20 pts. wt. cobalt-alumina nanocomposite powder, 5-20 pts. wt. cobaltosic oxide powder, 5-20 pts. wt. silicon nitride, 5-20 pts. wt. superfine iron powder, 5-20 pts. wt. superfine aluminum powder, 5-20 pts. wt. high-carbon graphite powder, 5-20 pts. wt. silica sol, 5-20 pts. wt. deionized water, 5-10 pts. wt. leveling agent, 5-20 pts. wt. wetting agent, 5-10 pts. wt. binder, and 5-10 pts. wt. organic solvent. USE - Aqueous coating is used for solar heat absorbers. ADVANTAGE - The aqueous coating has excellent stability, and can be prepared industrially by a simple, easy and economical method. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of coating, which involves grinding and mixing the solid and liquid raw materials in a grinder for 40-90 minutes at room temperature.