Reflective thermal-insulation exterior wall coating

Abstract

A reflective thermal-insulation exterior wall coating is characterized in that based on the total weight of the coating, components of the coating contain, by weight, 40-50% of waterborne acrylic resin, 10-20% of water, 10-15% of silica powder, 5-8% of expanded perlite, 3-5% of hollow ceramic microsphere, 2-5% of vermiculite powder, 3-5% of sericite powder, 5-8% of coal ash, 1-2% of an antifreeze agent, 4-6% of titanium dioxide, 4-6% of barium sulfate, 0.1-0.15% of aluminium titanate, 0.1-0.15% of silicon carbide, 0.1-0.15% of cordierite, 0.3-0.8% of an antifoaming agent, 0.1-0.15% of a bactericide, 0.1-0.4% of a dispersant, 1-1.5% of an alkali swelling thickener, 0.1-0.2% of a cellulose thickener, 0.1-0.15% of a wetting agent and 0.5-1% of an film-forming additive.

Description

technical field [0001] The invention relates to a paint, in particular to a reflective and heat-insulating exterior wall paint. Background technique [0002] With the continuous warming of the earth, excessive solar heat radiation and strong urban heat island effect make people endure unbearable high temperature. Although humans have adopted various methods to overcome the troubles caused by the sun, they consume a lot of electricity and freon, so that while people get cool, they further aggravate the city's heat island effect. Heat-insulating coating is a functional coating that reduces the heat accumulation inside the coated object through mechanisms such as barrier, reflection, and radiation, so as to achieve energy saving and improve the working environment or safety. Thermal insulation coatings have gradually become a new energy-saving measure for buildings because of their advantages such as economy, ease of use, and reliable thermal insulation effect. Since the 1980...

AI Technical Summary

Problems solved by technology

However, there are still many problems in the current research on reflective heat-insulating coatings: reflective heat-insulating coatings for metal surfaces basically use solvent-based systems, and it is necessary to develop water-based system reflective heat-insulating coatings for metal surfaces; The price of reflective fillers for the preparation of reflective heat insulation coatings is generally high, resulting in high costs; there is no standard test method for the performance of the coating film to reflect light and heat; the heat insulation performance of heat insulation coatings needs to be further improved, etc.