Elastic, reflective and heat-insulation coating and preparation method thereof

Abstract

The invention discloses an elastic, reflective and heat-insulation coating and a preparation method thereof. The elastic building coating comprises, by mass, 20-40% of a pure acrylic elastic resin emulsion, 20-30% of a silicone resin emulsion, 6-15% of hollow polymer particles, 5-15% of a reflective raw material, 12-25% of a leadless pigment, 0.1-0.5% of a polymeric dispersant, 0.1-0.5% of an antifoaming agent, 0.1-0.3% of a wetting agent, 0.2-0.5% of a leveling agent, 0.1-0.3% of an ultraviolet light absorption stabilizer, 0.1-0.2% of a mildew inhibition antiseptic, 0.5-2.5% of a film forming assistant, and 5-25% of deionized water. The elastic, reflective and heat-insulation coating adopting the pure acrylic elastic resin emulsion and the elastic silicone resin emulsion can realize paint film elasticity and fine crack coverage, and makes the contamination resistance of the paint film be better than that of paint films formed by traditional elastic coatings and traditional heat insulation and reflection coatings.

Description

technical field [0001] The invention relates to the technical field of water-based architectural coatings, in particular to an elastic reflective heat-insulating architectural coating and a preparation method thereof. Background technique [0002] Building energy conservation is one of the key points of my country's energy conservation work, and external wall insulation has become the main product of building energy conservation. For areas where thermal insulation is the main focus of thermal design, such as severe cold areas and cold areas, external wall insulation is not only reasonable, but also applicable, and has developed rapidly. For hot summer and warm winter regions where thermal design generally only considers heat insulation, or hot summer and cold winter regions where heat insulation is the main focus of thermal design, there is room for further improvement of the current external wall insulation. For example, in hot summer and warm winter or hot summer and cold...

AI Technical Summary

Problems solved by technology

Because the microbead material used is a hard material with a high content, the paint film cannot cover the fine cracks on the wall

At the same time, the microbead material is easy to pulverize, and the reflective heat efficiency of the reflective particles is greatly reduced after pulverization and cannot be recovered; the surface of the paint film is also easily polluted after the microbead material is pulverized, resulting in a decrease in the stain resistance of the coating film

The microbead material cannot be toned, and the reflection efficiency of the toned microbeads will lose more than 90%