Thermal-insulation protective coating for aluminum alloy doors and windows and preparation method thereof

Abstract

The invention discloses a thermal-insulation protective coating for aluminum alloy doors and windows. The thermal-insulation protective coating is prepared from, by weight, 50-60 parts of fluoro-siloxane resin, 10-16 parts of bisphenol A diglycidyl ether, 12-16 parts of hollow microspheres, 30-40 parts of solvent, 6-8 parts of nano additive, 9-13 parts of processing aid, 1-3 parts of silane coupling agent, 4-6 parts of thickening agent and 20-30 parts of heat insulation packing. The thermal-insulation protective coating is low in thermal conductivity, good in thermal insulation effect and strong in corrosion resistance. The chemical properties of the thermal-insulation protective coating are stable, the surface hardness is better, and the thermal-insulation protective coating is resistant to friction and convenient to construct and is formed at a time. In addition, the raw material components of the thermal-insulation protective coating are safe and reliable, are harmless to the human body and are easy to obtain, the cost is lower, the process is simple and clear and easy to operate and achieves industrialized production, and the coating has a higher practical value and good application prospect.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy protection, in particular to a heat-insulating protective coating for aluminum alloy doors and windows and a preparation method thereof. Background technique [0002] Due to the unique properties of aluminum alloy materials and composite materials, in recent years, their application range is expanding year by year, and their consumption is also increasing. In order to further improve the various resistance and decorative effects of aluminum alloy materials and composite materials, a relatively simple method is to coat the surface with paint. As we all know, aluminum alloy materials oxidize with oxygen in the air under natural conditions to form oxide films. Achieving good adhesion limits the application range of aluminum alloy materials; composite materials are multiphase materials composed of two or more materials, generally one or more reinforcements such as glass fiber and carbon fiber ...

AI Technical Summary

Problems solved by technology

Usually, it must be polished very clean, and then cleaned with a solvent until the water film is not broken within 30 seconds when the water film continuous method is tested. At this time, the coating film coated on the surface of the composite material will have good adhesion. This makes the construction of the coating very cumbersome

In addition, the composite material itself is porous, and it is easy to cause defects such as shrinkage cavity on the surface of the coating film when coating the coating, which affects the appearance and protective effect of the coating film.

[0003] On the other hand, building energy conservation is the main content of implementing national environmental protection and energy conservation policies. Building heating energy consumption in cold northern regions has accounted for more than 20% of the local energy consumption of the whole society, and most of them use thermal power and coal combustion. Boilers, while causing serious pollution to the environment