Aqueous environment-friendly interior-wall nano-elastic architectural paint and preparation method

Abstract

The invention discloses an aqueous environment-friendly interior-wall nano-elastic architectural paint and a preparation method. The paint is composed of the following components, by weight, 10-13% of water, 17-21% of an high-elasticity nano-emulsion, 10-14% of a SD-688 nano-pure acrylic emulsion, 7-11% of CM-101 carbon / carbon, 15-17% of nano-anatase titanium dioxide, 5-8% of nano-talcum powder, 12-16% of nano-calcium carbonate, 5-7% of nano-bentonite, 2-6% of an auxiliary agent, 0.1-0.3% of a BEK-500 bactericide, 0.1-0.4% of a S-220 antifoaming agent, 0.1-0.3% of a thickening agent and 0.1-0.3% of a dispersant. The paint provided by the invention has high weatherability, high chemical corrosion resistance, water resistance, scrubbing resistance and good artificial aging resistance, and has advantages of rich expressive force, strong stereo perception, flexibility, high plasticity, high adhesive force, acid and alkali resistance, fastness, non-scale, non-cracking and easy recoating during maintenance. The preparation method has advantages of simple technology, low cost and good benefit.

Description

technical field [0001] The invention belongs to the technical field of coatings, and relates to an architectural coating, more specifically, to a water-based environment-friendly nano-elastic architectural coating for interior walls and a preparation method thereof, which is mainly used for architectural coatings for interior walls. Background technique [0002] At present, most buildings in my country use cement mortar plaster as the base layer. However, due to the inherent characteristics of cement-based materials, cracks often occur when affected by environmental factors such as temperature changes, alternating wet and dry cycles, and freeze-thaw cycles. If its surface is made of ordinary Inside wall paint Decoration, with the generation and expansion of cracks in the base layer, the coating will also crack; with the prolongation of time and the accumulation of the above-mentioned damage factors, the cracks will further increase and deepen, which will adversely affect ...

AI Technical Summary

Problems solved by technology

However, due to the inherent characteristics of cement-based materials, cracks often occur when affected by environmental factors such as temperature changes, alternating wet and dry cycles, and freeze-thaw cycles.

If its surface is made of ordinary Inside wall paint Decoration, with the generation and expansion of cracks in the base layer, the coating will also crack; with the prolongation of time and the accumulation of the above-mentioned damage factors, the cracks will further increase and deepen, which will adversely affect or even harm the building; when exposed to moisture During erosion, water will penetrate into the cracks and further penetrate into the interior; in addition to further expansion of cracks due to the alternating action of dry and wet, it may also cause corrosion of steel bars inside the concrete, and even affect the use of buildings; when exposed to carbon dioxide in the atmosphere, etc. When acid gas and other corrosive gases attack, these corrosive gases will corrode the coating, internal cement mortar and concrete, carbonize the concrete, and may also affect the internal steel bars of the structure

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