▎ 摘　　要

NOVELTY - The photo-thermal energy storage wall has a surface layer, an energy storage layer, a waterproof layer and an inner decorative surface layer which are sequentially arranged from outside to inside. The surface layer is a modified asphalt-based photo-thermal composite material and specifically comprises 100 pts. wt. of asphalt, 10-20 pts. wt. of a modifier, 5-30 pts. wt. of carbon material, 0.1-1 pt. wt. of a dispersant, 0.1-3 pts. wt. of an antioxidant and 0.1-3 pts. wt. of an UV aging resistant agent. USE - Photo-thermal energy storage wall for use in buildings, solar steam power generations, seawater desalinations, solar energy collections, photothermal therapy, and wastewater/sewage purifications. ADVANTAGE - The surface layer of the photo-thermal energy storage wall body has higher photo-thermal conversion efficiency, and the surface temperature is obviously increased by about 20 degrees Celsius higher than that of a common wall body under the same solar illumination condition. The temperature in the wall is obviously higher than that of a common wall, and the time for reducing the temperature in the wall to the ambient temperature is longer. By utilizing the characteristics of high viscosity, high adhesive force, high absorbance and waterproofness of the asphalt material, the dispersing agent, the antioxidant and the UV aging resistant agent, the carbon material is firmly loaded on the surface of the energy storage wall, and the service life of the photo-thermal energy storage wall is prolonged. The photo-thermal energy storage wall body is applied to a building structure, electric energy and fuel are not consumed, sunlight which is renewable energy is effectively converted, stored and utilized, and the purpose of low carbon and energy conservation of a building is achieved.