The invention relates to an intelligent building
coating capable of preparing a film with temperature discoloration response and
radiation refrigeration functions and a preparation method of the intelligent building
coating. Intelligent discoloration of the appearance of a building, visual judgment of the temperature of the building and reduction of the
refrigeration energy consumption of the building are achieved. The
coating disclosed by the invention is prepared from the following components in percentage by
mass: 5 to 15 weight percent of
montmorillonite, 5 to 15 weight percent of
silicon oxide microspheres, 5 to 15 weight percent of silver tetraiodo-mercurate, 10 to 30 weight percent of
polymer with transparent
visible spectrum or high
infrared emission spectrum emission, 0 to 5 weight percent of functional additive and 30 to 50 weight percent of
solvent. The
reflectivity of the
radiation refrigeration function layer in a solar spectrum waveband area is larger than or equal to 0.87, the
emissivity of the
radiation refrigeration function layer in the 8-12-micron waveband of an atmospheric window is larger than or equal to 0.81, the refrigeration efficiency under the
direct solar radiation condition is larger than or equal to 80 W / m < 2 >, and the film is light yellow and reddish brown at the temperature of 50 DEG C or below so that visual judgment of the building temperature can be achieved. The preparation method provided by the invention is simple in process, the refrigeration
energy consumption of the building can be effectively reduced, the building is endowed with good aesthetic characteristics, and the energy efficiency and living suitability of the building can be improved.