Modified lanthanum hexaboride heat-insulating property enhanced exterior wall acrylic high-elasticity waterproof coating

Abstract

The invention discloses a modified lanthanum hexaboride heat-insulating property enhanced exterior wall acrylic high-elasticity waterproof coating. The exterior wall acrylic high-elasticity waterproof coating is prepared from the following raw materials in parts by weight: 20 to 22 parts of methyl methacrylate butyl acrylate, 29 to 31 parts of butyl acrylate, 8.5 to 9.5 parts of hexafluorobutyl acrylate, 4 to 5 parts of vinyltriethoxysilane, 0.1 to 0.12 part of ammonium persulfate, 2 to 3 parts of OP-10, an appropriate amount of deionized water and an appropriate amount of ammonia water, 1.5 to 2 parts of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, 12 to 13 parts of lanthanum hexaboride powder, 1.2 to 1.3 parts of polyvinylpyrrolidone, 0.8 to 1 part of sodium dodecyl benzene sulfonate, an appropriate amount of anhydrous ethanol, 7 to 8 parts of rutile type titanium dioxide, and 1 to 1.5 parts of sodium carboxymethylcellulose. The coating prepared by the invention has good heat insulation properties, can prevent infrared rays from entering, and further prevents heat from radiating outdoors, and has good water resistance and weather resistance after applied onto outdoor wall bodies; in addition, a prepared coating film is not easy to crack, thereby well protecting the wall bodies and prolonging the service life of the wall bodies.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an exterior wall acrylic high-elastic waterproof coating with enhanced heat insulation performance of modified lanthanum hexaboride. Background technique [0002] At present, an important development direction of building exterior wall coatings is energy-saving and thermal insulation. The performance of the emulsion used for the facing layer has a direct impact on the water resistance, stain resistance, durability and temperature resistance of the external wall thermal insulation system, and the wall Body cracks will cause rainwater and carbon dioxide gas intrusion, cause steel bar corrosion, and accelerate wall carbonization speed. Building wall cracks have become one of the common problems that affect the quality of construction projects. Due to the good extensibility of the coating, elastic architectural coatings can resist and cover the cracks in the base layer to a certain ...

AI Technical Summary

Problems solved by technology

Conventional coatings cannot not only have excellent weather resistance, water resistance and stain resistance, but also have good elasticity, flexibility and crack resistance, so the development of a new type of high-performance elastic waterproof coating has become a research topic for exterior walls. An important subject of the thermal insulation system project