External-wall elastic coating with reflective insulation effect and preparation method of external-wall elastic coating

Abstract

The invention discloses an external-wall elastic coating with a reflective insulation effect and a preparation method of the external-wall elastic coating. The external-wall elastic coating is prepared from the following components in percentage by weight: 15.0%-25.0% of water, 0.2%-0.3% of cellulose, 0.1%-0.2% of a pH adjustor, 0.2%-0.5% of a defoaming agent, 0.2%-0.3% of a wetting agent, 0.4%-0.6% of a dispersing agent, 1.5%-2.5% of ethylene glycol, 1.0%-1.5% of a film forming aid, 5.0-20.0% of titanium dioxide, 7.0%-10.0% of reflective insulation powder, 15.0%-20.0% of heavy calcium, 30.0%-40.0% of an elastic acrylic emulsion, 4.0%-6.0% of a water repellent, 0.5%-1.0% of a sterilizing agent, 0.3%-0.5% of an alkali swelling and thickening agent and 0.3-0.5% of a polyurethane thickening agent. The external-wall elastic coating is applied to the surface of an external wall of a building, is matched with external-wall thermal insulation putty in use, can meet all standards of conventional elastic coating paint and has the reflective insulation effect and a high dirt resistance. The external-wall elastic coating has important significances to thermal insulation and energy conservation of the external wall and the resistance to base layer cracks and dirt pollution.

Description

technical field [0001] The invention relates to the technical field of architectural coatings, in particular to an elastic coating for exterior walls with reflection and heat insulation effects and a preparation method thereof. Background technique [0002] At present, most of the popular elastic coatings for external walls on the market are made of ordinary elastic emulsion, combined with powder and additives, and there are generally the following problems: first, it is difficult to cooperate with external thermal insulation to meet the requirements of energy saving and environmental protection; second, the paint film is too Soft, low stain resistance, resulting in a lot of dust, bacteria and mold growth, affecting the service life and appearance of the application. At present, many literatures and patents have reported that the elastic wall latex paint has improved the anti-fouling performance in different ways, and has excellent elasticity, high anti-fouling resistance, a...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the popular elastic paints for external walls on the market are made of ordinary elastic emulsion, combined with powder and additives, which generally have the following problems: first, it is difficult to cooperate with external heat preservation to meet the requirements of energy saving and environmental protection; second, the paint film is too Soft, low stain resistance, resulting in a lot of dust, bacteria and mold growth, affecting the service life and appearance of the application

At present, many literatures and patents have reported that the elastic wall latex paint has improved the anti-staining performance in different ways, and has excellent elasticity, high anti-staining, and reflective heat insulation performance. Patent not yet reported

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