Stain-resistant heat-insulation coating and preparation method thereof

Abstract

The invention discloses a special electric stain-resistant heat insulation coating. The special electric stain-resistant heat insulation coating comprises the following components in parts by weight: 15-50 parts of a film formation emulsion, 5-30 parts of nano oxide powder, 10-20 parts of heat reflection pigment, 5-25 parts of hollow ceramic microbeads, 8-15 parts of a filler, 5-15 parts of additives and a proper amount of deionized water. The purposes of resisting stains and insulating heat can be achieved by introducing components such as nano oxide powder into the heat insulation coating. The invention also discloses a preparation method of the stain-resistant heat insulation coating. The preparation method of the stain-resistant heat insulation coating comprises the following steps: adding deionized water, part of the additives, the nano oxide powder, the hollow ceramic microbeads, the heat reflection pigment and filler into a grinder for grinding to obtain slurry; transferring the prepared slurry into a dispersing machine, adding the film formation emulsion and the rest of additives into the slurry, stirring and dispersing the slurry, filtering the slurry by a screen to obtain the stain-resistant heat insulation coating. The preparation method of the stain-resistant heat insulation coating is simple in process, easy to implement and simple and convenient to operate.

Description

technical field [0001] The invention relates to a stain-resistant heat-insulating coating and a preparation method thereof, belonging to the technical field of special coatings for electric equipment. Background technique [0002] The box transformer and switching station in the power equipment are the most important components of power supply facilities in the smart grid and distribution network. Their functions are to ensure the safe and effective transmission, control, collection and distribution of electric power. key. However, box substations and switchgears are exposed to wind and sun all the year round, especially in high temperature weather. Box substations and switchgears usually cause more failures due to the increase in ambient temperature, and their service life is greatly reduced, thus affecting the stability of the power supply system. and reliability. Taking the commonly used oil-immersed transformer in China as an example, its internal insulation heat resis...

AI Technical Summary

Problems solved by technology

The Chinese invention patent application with publication number CN 102676014A discloses a water-based stain-resistant thermal insulation coating, including 15-40 parts of film-forming emulsion, 10-40 parts of fluororesin emulsion, and 10-30 parts of heat-reflecting pigment , 5~15 parts of hollow ceramic microspheres, 8~16 parts of fillers, 1.5~5 parts of additives and an appropriate amount of deionized water. By introducing water-based fluororesin emulsion and other components into the film-forming emulsion, it has a low The surface energy characteristics make it difficult for small particles and droplets of pollutants to adsorb to achieve the purpose of stain resistance and heat insulation. The stain resistance (%) reaches 8 or less, but it is greatly improved by adding a large amount of water-based fluororesin emulsion. The cost of coating products is reduced, and the transportation and storage temperature of the added water-based fluororesin emulsion is 5°C-35°C. In winter, it is necessary to pay attention to heat preservation, which is prone to demulsification. Most of the winter in northern China is lower than 0°C. The storage of paint products , Construction will cause inconvenience

At the same time, the Chinese invention patent application with the publication number CN 103525206A discloses a water-based stain-resistant thermal insulation coating, which includes 60-70 parts of polytetrafluoroethylene emulsion, 1-2 parts of 2,2,4-trimethyl- 1,3 pentanediol monoisobutyrate, 1~2 parts of glycerin, 3~4 parts of alumina, 4~6 parts of hollow ceramic microbeads, 10~15 parts of talc, 2~4 parts of carbon nanotubes , 1~2 parts of diethylenetriamine, 0.1~0.3 parts of isothiazolone, 0.2~0.5 parts of sodium tripolyphosphate, 0.8~1 part of simethicone, 20~30 parts of bonding agent, 15~30 parts Deionized water, through the addition of bonding aids, the film-forming material has the characteristics of ground surface energy, so that it has excellent stain resistance, and its stain resistance (%) is 10, and its cost is relatively high. Thermal insulation coatings The production process is many and complicated, and it is not convenient to use