Heat insulation coating

Abstract

The invention relates to thermal insulating paint which comprises the following compositions and contents in mass portion: 10.0 to 18.0 portions of water, 0.3 to 1.0 portion of wetting-dispersing agent, 0.3 to 1.0 portion of propanediol, 0.05 to 0.2 portion of a disinfecting agent, 0 to 5.0 portions of French chalk, 2.0 to 10.0 portions of titanium pigment, 1.0 to 5.0 portions of aciform cordierite powder, 5.0 to 15.0 portions of hollow glass bead, 0.1 to 0.2 portion of defoamer, 25.0 to 35.0 portions of modified acrylic acid latex, 0.15 to 0.3 portion of thickening agent, 0.15 to 0.3 portion of a flow agent and 0.1 to 1.0 portion of pH adjusting agent, wherein the modified acrylic acid latex is elastic acrylic acid latex by modifying fluorosilcone monomers and is provided with a core-shell structure and has the silicon fluoride distributed on the surface layer of latex particles. The thermal insulating paint is particularly suitable for forming a decorative surface layer in an external thermal insulating system of an external wall.

Description

technical field [0001] The invention relates to a thermal insulation coating, which is particularly suitable for use as a thermal insulation coating for forming a decorative surface layer in an external thermal insulation system of an exterior wall. Background technique [0002] Building energy consumption accounts for 30% to 40% of human energy consumption, and most of it is used for heating and air conditioning. Improving the thermal insulation performance of buildings is an important way to save energy and improve building functions. External wall insulation technology can obviously achieve the effect of protecting the wall and saving energy. At present, the coating used as the finishing layer in the external thermal insulation system of the building's external wall is a coating with ordinary elastic acrylic emulsion as the film-forming substance. The disadvantage of this kind of coating is: when the temperature difference of the external environment changes greatly, the...

AI Technical Summary

Problems solved by technology

The disadvantage of this kind of coating is: when the temperature difference of the external environment changes greatly, the coating film of the facing layer will crack, which will cause the cracking of the insulation layer, thus affecting the service life of the entire insulation system of the building's outer wall; in addition, ordinary Films formed from elastic acrylic emulsions have poor stain resistance and can also affect the appearance of buildings

Published Chinese patent applications such as CN1037165A, CN1067667A, CN1076943A, CN1148072A, etc. involve thermal insulation coatings, all adopt conventional thermal insulation materials such as sepiolite, expanded perlite, expanded vermiculite, etc. to prepare, because the coating is thicker, It is only suitable for heat insulation of pipelines, kettle bodies or buildings, etc., and is not suitable for building exterior wall finishes; CN1757689A discloses a thin-layer coating type waterproof and thermal insulation coating, although the coating thickness is reduced to about 2mm, but The film-forming material still uses ordinary elastic acrylic emulsion, and the stain resistance and durability of the formed coating film are still poor, and it has no protective effect on the polystyrene board insulation layer of the external wall insulation system of the building.

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