Aerogel thermal insulation coating and preparation method thereof

Abstract

The invention discloses an aerogel thermal insulation coating and a preparation method thereof, belongs to the field of thermal insulation coatings and aims at solving the problems that the thermal insulation coating in the prior art has large heat conduction, low thermal insulation inhibition ratio and a poor thermal insulation effect. The aerogel thermal insulation coasting is prepared from materials in parts by weight: 100 to 110 parts of film forming agent, 40 to 100 parts of filler and 2 to 8 parts of fire resistant fiber, wherein the filler is prepared from 20 to 40 parts of silicon dioxide aerogel cement and 5 to 10 parts of nanometer hollow silicon microsphere, and an aid is prepared from 3 to 6 parts of binder, 1 to 4 parts of penetrant, 0.5 to 5 parts of thickener, 0.1 to 0.4 part of active agent and 2 to 3 parts of defoamer. The coating disclosed by the invention can form a three-dimensional network hollow structure on the surface of a building wall body, the three-dimensional network hollow structure is formed by sealed microspheres which are connected together, and a fine nano-porous network structure of aerogel and the nanometer hollow silicon microspheres can form a stacked static-state air set; thus, heat conductivity coefficient of a coating is smaller than 0.015W / m.K, and heat conductivity can be effectively prevented.

Description

technical field [0001] A paint and a preparation method thereof belong to the technical field of paint production, and mainly relate to an airgel thermal insulation paint and a preparation method thereof. Background technique [0002] Airgel is a solid form of matter, one of the smallest solids in the world. The density is 3 kilograms per cubic meter. Because of the extremely low density, the lightest aerogel at present is only 0.16 mg per cubic centimeter, which is slightly lower than air density, so it is also called "frozen smoke" or "blue smoke". Because the particles inside are very small (nanoscale), visible light is less scattered when it passes through it (Rayleigh scattering), just like sunlight passing through air. Therefore, it also looks blue like the sky (if nothing else is in it), and looks a little reddish when held up to the light. (The sky is blue, while the evening sky is red). Because generally more than 80% of airgel is air, it has a very good heat in...

AI Technical Summary

Problems solved by technology

[0004] The thermal insulation coating in the prior art has large heat conduction, low thermal insulation inhibition rate, and poor thermal insulation effect

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