Thermal insulation coating and preparation method thereof

Abstract

The invention discloses a thermal insulation coating which is characterized by being prepared from the following raw materials in parts by weight: 30 to 40 parts of a polymeric borate 2, 7-diaminofluorene / diglycidyl 1,2-cyclohexanedicarboxylate polycondensate, 3-6 parts of fluorobenzene modified diallyl isocyanurate, 1-3 parts of 3-trimethoxysilane propyl acrylate, 3-5 parts of cobaltous oxide hollow nanofibers, 3-6 parts of an aluminum-based metal organic framework, 10-20 parts of sepiolite powder, 1-3 parts of an initiator, 10-15 parts of a solvent and 3-5 parts of a functional additive. Theinvention also provides a preparation method of the thermal insulation coating. The thermal insulation coating disclosed by the invention has good comprehensive performance, remarkable thermal insulation effect, good weather resistance and storage stability, high adhesion strength, excellent mechanical property and chemical resistance stability and long service life.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a thermal insulation coating and a preparation method thereof. Background technique [0002] In recent years, with the intensification of the global heating effect, energy conservation and emission reduction have become a common problem faced by the world's construction industry. my country's resources are relatively insufficient, but energy consumption is increasing day by day. Energy issues have become the main factor restricting economic development, and energy conservation is urgent. In my country, building energy consumption accounts for a large proportion of the total energy consumption. Therefore, it is very necessary to develop building insulation materials that are conducive to energy saving. [0003] As a common building insulation material, building thermal insulation coatings are more and more popular because of their advantages such as convenient use, good thermal ...

AI Technical Summary

Problems solved by technology

However, the above-mentioned ceramic balls can only reduce the thermal conductivity of the thermal insulation coating to a limited extent, and its thermal conductivity is generally between 0.1-0.3W / m.k, and the reflectivity of the thermal insulation coating is between 80-90%.

In general, reducing the thermal conductivity will result in a decrease in reflectivity

At the same time, the formed coating has weak UV resistance, is not wear-resistant, is not flame-retardant, and has a relatively short service life.

In addition, the thermal insulation coatings on the market generally have poor waterproof performance and adhesion, easy to crack and fall off, poor storage stability, high price, inconvenient construction, weather resistance and thermal insulation performance need to be further improved Defects

[0005] Chinese invention patent CN1986664A discloses a thermal insulation coating with hollow glass microspheres as the main additive, which can reduce the surface temperature and internal temperature of various objects, thereby improving the working environment and achieving the purpose of saving energy and reducing consumption. However, the existing hollow glass The wettability of microbeads and water is poor, it is difficult to disperse in the coating and it is easy to segregate during storage. After coating, it is not firmly adhered to the base layer and has poor durability.