Nanometer high-weatherability colorful eco-friendly paint and preparation method thereof

Abstract

The invention relates to nanometer high-weatherability colorful eco-friendly paint. The nanometer high-weatherability colorful eco-friendly paint comprises a pigment component, a disperse medium and varnish. The pigment component comprises RO water cellulose, an emulsion, a dispersant, pigment and filling materials, a nanometer anti-aging agent, an antifoaming agent, a nanometer stain-resistant agent, a film forming auxiliary agent, an antifreezing agent, an inorganic protection glue solution, a pH adjustment agent, a bactericide and a first thickening agent. The disperse medium comprises RO water, a film forming auxiliary agent, a rheological agent, an emulsion, an organic protection glue solution, an antifoaming agent, an inorganic protection glue solution and a coupling agent. The varnish comprises RO water, an emulsion, a nanometer anti-aging agent, a pH adjustment agent, a bactericide, an antifoaming agent, a film forming auxiliary agent, an antifreezing agent and 0.3-1 part of a second thickening agent. Compared with the prior art, the preparation method utilizes the nanometer stain-resistant agent to reduce air organic dust adsorption, realize good coating film self-cleanliness and improve paint stain resistance and utilizes the nanometer anti-aging assistant to improve aging resistance of the aqueous colorful paint.

Description

technical field [0001] The invention relates to a coating, in particular to a nanometer high weather resistance colorful environmental protection coating and a preparation method thereof. Background technique [0002] The use of natural granite as decorative materials for building interior and exterior facades is gradually being eliminated due to the lack of mining of natural stone, the damage to the natural environment and pollution of the environment, the natural color difference of stone source mines, and the poor safety of steel hanging stones, etc. Factors, the color effect of replacing natural granite in the form of paint arises spontaneously. [0003] Water-based colorful paint is a hot product used in the field of decorative paint for interior and exterior walls in recent years. The decorative effect is outstanding. The product is sprayed on the surface of latex paint or quartz sand paint by one-time spraying. After drying, it can present a variety of color patterns ...

AI Technical Summary

Problems solved by technology

[0004] Most of the fluorocarbon and silicone-acrylic colorful paints in the existing paints are modified by styrene-acrylic emulsion as water-based colorful paints for exterior walls. These paints only focus on appearance effects and engineering costs, while ignoring the overall weather resistance and anti-natural factors of the paint Influence, the performance of the paint film of the exterior facade coating layer is poor, and some paints will appear efflorescence on the wall soon after use. The wall paint film is easy to crack and fade, which will eventually affect the structural damage of the building, causing water seepage and humidity in the house. There are security risks

The product is impacted by the natural environment, and the paint film is seriously stained and discolored. Due to the film-forming mechanism, the water-based fluorocarbon cannot really achieve the high contact angle (>150°) of the oil-based fluorocarbon, although the water-based fluorocarbon has high durability. (anti-chalking), but due to the inability to achieve a high contact angle, hydrophilic and lipophilic stains are easy to adhere to the surface of the paint film in the natural environment, resulting in the aging and discoloration of the coating layer over time

Water-based fluorocarbon emulsions with weather resistance and fluorine content on the market have a large contact angle with water (>100°) due to the low surface tension of fluorine elements. Although they are hydrophobic, they are not as good as oily fluorocarbon emulsions (large contact angles >100°) ) has good hydrophobicity, so the stain resistance is worse than oily fluorocarbon

Images