▎ 摘　　要

NOVELTY - Thermo-optical coating comprises: an inner layer (1) designed to generate high solar reflection plus high long-wave infrared emission, which contains a mixture of chemical compounds including calcium oxide, silicon oxide, aluminum oxide and calcium carbonate dissolved in brine; and an outer layer (2) designed to dissipate the latent heat of vaporization through evaporative cooling, which contains a transparent sealant, highly hygroscopic, based on polyvinyl alcohol doped with graphene oxide dissolved in water. USE - The thermo-optical coating is useful for roofs and walls of homes and buildings. ADVANTAGE - The thermo-optical coating: exhibits thermodynamic and optical properties; all-weather functionality, minimal or zero toxicity, corrosivity and flammability; and is sustainable, safety, fast production, low cost, easy transportation, safe storage, quick application and simple maintenance. DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of general cut-away schematic of the layers. 1Inner layer 2Outer layer