Repairing agent and application thereof

Abstract

The invention relates to a repairing agent. The repairing agent comprises a first solvent and a film-forming agent dispersed in the first solvent, and a molecular chain of the film-forming agent comprises silicon hydroxyl. The repairing agent is used for forming a repairing layer, the heat reflectivity of a radiation refrigeration film is m1, the heat absorption rate of the radiation refrigerationfilm is n1, the heat reflectivity of a radiation refrigeration film comprising the repairing layer is m2, the heat absorption rate of the radiation refrigeration film comprising the repairing layer is n2, the difference between m2 and m1 is x, x is greater than or equal to -5%, and the difference of n2-n1 is y and y is less than or equal to 3%. Chemical bonds are formed between the repairing agent and the damaged part of the radiation refrigeration film, so that the repairing agent has good adhesive force with the radiation refrigeration film, and the refrigeration effect of the radiation refrigeration film is not influenced.

Description

technical field [0001] The invention relates to the technical field of radiation refrigeration, in particular to a restoration agent and its application. Background technique [0002] Radiation cooling refers to the cooling method that releases heat directly from the atmospheric window to outer space through infrared radiation. The characteristic of radiation cooling is that the surface temperature of the cooling body is always lower than the air temperature, and then the temperature of the radiation cooling body is lowered below the air temperature through conduction, so as to achieve the purpose of radiation cooling. [0003] Radiation cooling products currently on the market are mainly radiation cooling films, which can be pasted on the outer surface of the object to be cooled according to the needs of use. The radiation cooling film is thin and easy to be damaged during use. On the one hand, the damage of the radiation cooling film will affect the radiation cooling effi...

AI Technical Summary

Problems solved by technology

The radiation cooling film is thin and easy to be damaged during use. On the one hand, the damage of the radiation cooling film will affect the radiation cooling efficiency of the radiation cooling film. On the other hand, after the reflective coating in the radiation cooling film contacts with the water and oxygen in the air, It is easy to be oxidized or corroded, which will affect its reflective function and shorten the service life of the radiative cooling film

Existing repair agents usually induce crosslinking of polymers through curing agents, initiators or catalysts in coatings. The film-forming process is relatively complicated, and the cost of coatings is high, which is not convenient for practical use.

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