Gas-coagulation lightweight surface exterior wall coating

Abstract

The invention discloses a gas-coagulation lightweight surface exterior wall coating, and belongs to the technical field of building coatings. The gas-coagulation lightweight surface exterior wall coating comprises the following components in parts by weight: 25-30 parts of a film forming emulsion, 10-20 parts of titanium white powder, 5-6 parts of kaolin, 24-30 parts of heavy calcium, 1-1.5 pats of an anti-freezing agent, 0.4-0.8 part of an anti-foaming agent, 0.2-0.5 part of an adhesion accelerator, 0.1-0.15 part of an anti-radiation agent, 1-2 parts of an anti-cracking enhancer, 0.1-0.2 partof a wetting agent, 0.8-1.2 parts of a film-forming auxiliary agent, 0.1-0.2 part of a cellulose thickener, 0.1-0.3 part of a dispersant, 0.2-0.3 part of a PH regulator, 1-3 parts of a viscosity stabilizer, 5-6 parts of silver nanoparticles, 5-6 pats of a magnetic aerogel, and 10-20 parts of deionized water. By the lightweight and heat insulation characteristics of the magnetic aerogel, the exterior wall coating is endowed with the characteristics of gas-coagulation and lightweight, and the uniform dispersion of the magnetic aerogel in the coating is guided by applying the external magnetic field in the mixing process, so that the overall performance of the coating is improved, such as cracking resistance, viscosity and heat insulation of the coating.

Description

technical field [0001] The invention relates to the technical field of architectural coatings, in particular to an air-condensing lightweight surface exterior wall coating. Background technique [0002] Airgel, also known as xerogel, when the gel removes most of the solvent, the liquid content in the gel is much less than the solid content, or the space network structure of the gel is filled with gas, and the appearance is Solid, this is xerogel, also known as airgel, such as gelatin, gum arabic, silica gel, hair, nails, etc. Airgel also has the properties of gel, that is, it has swelling effect, thixotropy effect, and ionizing effect. Slurry effect, as long as the gel of any substance can be dried to remove the internal solvent, and can basically keep its shape unchanged, and the product has high porosity and low density, it can be called aerogel, because the density is extremely low, At present, the lightest aerogel is only 0.16 mg per cubic centimeter, which is slightly ...

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