Reflective heat insulation coating and preparation method thereof

Abstract

The invention relates to the field of reflective thermal insulation coatings and a preparation method thereof. The reflective thermal insulation coating comprises the following components: 260 parts by mass of water; 2 parts by mass of a wetting agent; 8 parts by mass of a dispersant; 2.5 parts by mass of an inorganic thickener; 1.5 parts by mass of a multifunctional auxiliary agent; 2.5 parts by mass of a defoaming agent; 150 parts by mass of titanium dioxide; 150 parts by mass of heat insulation powder; 50 parts by mass of near-infrared reflective powder; 120 parts by mass of an elastic emulsion; 260 parts by mass of a silicone acrylic emulsion; 18 parts by mass of a film-forming agent; 18 parts by mass of an anti-freezing agent; 2 parts by mass of a leveling agent; 2 parts by mass of a bactericide; and 2.5 parts by mass of an organic thickening agent. The reflective thermal insulation coating has good barrier, reflection and radiation thermal insulation properties, and can effectively solve the problems of color modulation, construction, suspension, thickening, paint film plumpness and the like.

Description

technical field [0001] The invention relates to the field of reflective heat-insulating coatings and a preparation method thereof, and belongs to the field of heat-insulating coatings. Background technique [0002] With the rapid development of the construction industry, the energy saving and environmental protection of buildings are becoming more and more important. Therefore, the issue of building energy conservation has been paid more and more attention. At present, my country's building energy consumption accounts for about 27% of the total energy in the country, ranking first in all kinds of energy consumption in the country. In addition, the energy consumption of heating and air conditioning accounts for 55% of the total energy consumption of buildings, and it is still growing at a rate of 1% per year. Therefore, the research and development of building thermal insulation coatings has significant economic, environmental and social benefits. The use of coatings with ...

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Problems solved by technology

[0003] 1. In the case of the same addition amount, the coating made of glass hollow microspheres and ceramic microspheres requires high coating thickness and is easy to crack and has poor heat insulation performance;

[0004] 2. Unstable storage performance: products made of glass hollow microspheres or ceramic microspheres are prone to defects such as viscosity increase and floating during storage;

[0005] 3. Poor workability: due to the obvious post-thickening, it can only be diluted with water to achieve the scraping effect during construction. It is difficult to control the viscosity of the amount of water added, which has a great impact on construction and heat insulation effects;

[0006] 4. The price is relatively expensive: the high-quality glass hollow microspheres or ceramic microspheres selected for the preparation of reflective heat insulation coatings are mainly imported, and the price is generally high, which has a great impact on the production cost of the coating;

[0007] 5. Monotonous color: It is difficult to color the heat-insulating coating prepared with glass hollow microspheres or ceramic microspheres, mainly white;

[0008] 6. The heat-insulating coating made of hollow glass microspheres or ceramic microspheres has unevenness in the paint film after construction, and the paint film is not full, which cannot achieve the desired effect

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