Anti-condensation coating and preparation method thereof

Abstract

The invention discloses an anti-condensation coating. The anti-condensation coating comprises a mixed emulsion formed by a pure acrylic emulsion and a silicon resin emulsion and a heat insulation material formed by combining microbeads and aerogel slurry, wherein the mixed emulsion accounts for 20-40% of the total mass of the anti-condensation coating; and the heat insulation material accounts for 15-20% of the total mass of the anti-condensation coating. According to the anti-condensation coating disclosed by the invention, the heat insulation material containing the microbeads and the aerogel is added, so a temperature difference between a wall surface and air is reduced, the wall surface is prevented from condensation, and the problems of moisture absorption saturation, moisture absorption expansion and adhesive force reduction of a traditional anti-condensation coating due to moisture absorption of water vapor in air are also solved; and meanwhile, the pure acrylic emulsion and the silicon resin emulsion are used, and the water resistance and excellent physical performance of the pure acrylic waterproof emulsion and the air permeability and hydrophobicity of the silicon resin emulsion are effectively combined, so the coating has better physical performance, is not prone to damage, and has waterproof and lotus leaf self-cleaning effects to prevent external water from invading.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an anti-condensation coating and a preparation method of the anti-condensation coating. Background technique [0002] Condensation is generally due to the fact that the temperature of the wall surface of a building space is lower than the dew point temperature of the indoor air, and then condensed water appears on the wall surface, especially in autumn and winter or the rainy season, especially in the southern environment. For people living in cities, the generation of condensation affects their living environment, deteriorates the indoor air quality, and affects their health. The condensation water will also pollute and wet the interior surfaces of the room, leading to mildew of stored items and damage to building materials. , has a great impact on the use of buildings. For example, high-end civil basements have not been treated for a long time, and the walls and roofs are pron...

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Problems solved by technology

Such as the patent No. CN2881424Y discloses a special structural design to prevent condensation, but its cost is high and it is difficult to use it in molded equipment or houses; such as the patent No. CN101975762A, the anti-condensation method of temperature and humidity control is also quite expensive. high, and it is difficult to use it in a well-designed and decorated room; for example, the anti-condensation coating disclosed by the patent No. CN101962505B has anti-condensation ability, but it prevents condensation on the surface by absorbing the condensation water , it is difficult to prevent condensation after its absorption is saturated, and it is difficult to guarantee the basic properties of the coating such as adhesion and mildew resistance after long-term repeated moisture absorption and dehumidification

The purpose of anti-condensation can also be achieved by reducing the temperature difference between the wall surface and the air temperature through the thermal insulation coating. The coating disclosed in patent No. CN201610153323.3 can achieve the reflective thermal insulation effect through specific thermal insulation materials, but the coating The emulsion used is not hydrophobic and breathable, and the adhesion of the coating will be affected in a long-term water environment, which will cause the coating to lose its heat insulation effect, so it does not have the purpose of anti-condensation

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