A kind of elastic exterior wall paint and preparation method thereof

Abstract

The invention relates to an elastic exterior wall paint and a preparation method thereof, belonging to the technical field of polymer materials. The elastic exterior wall coating of the present invention comprises the following raw materials in parts by weight: 40-60 parts of acrylic latex, 10-20 parts of acrylic elastic latex, 1-5 parts of acrylic dispersant, 0.5-1.0 part of defoamer, titanium dioxide 20-30 parts, 10-20 parts of polyvinyl alcohol, 2-18 parts of carboxymethyl cellulose, 30-40 parts of calcium carbonate, 15-30 parts of barium sulfate, 1-5 parts of tributyl phosphate, 5-10 parts of pigment 50‑100 parts of water. The exterior wall paint of the invention effectively increases the elasticity and toughness of the paint coating, makes the coating have certain elasticity, and improves the service life of the paint while not damaging the effective strength of the coating.

Description

technical field [0001] The invention relates to an exterior wall paint and a preparation method thereof. More specifically, the invention relates to an elastic exterior wall paint and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] At present, polyacrylic acid latex is widely used as the main raw material of pure acrylic exterior wall coatings. Due to its excellent weather resistance, better coating appearance, and better compound processing performance, it has a very important role in the preparation of acrylic exterior wall coatings. important application. However, because the exterior wall paint coating prepared by commercially available acrylic latex is relatively hard, the coating has a certain brittleness when more fillers are added, which seriously affects the service life of the coating. [0003] The State Intellectual Property Office published an invention patent with the publication number CN103351...

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Problems solved by technology

[0004] Although the exterior wall coating in the above-mentioned patent is a nano-exterior wall coating, which has the properties and advantages of many nano-materials, it still has the problem that the coating formed after using this coating on the exterior wall is relatively brittle and its service life is reduced due to the large amount of fillers.