Self-cleaning aqueous fluorocarbon building coating and preparation method thereof

Abstract

The invention provides a self-cleaning aqueous fluorocarbon building coating and a preparation method thereof. The method comprises the following steps: a nano silica water adhesive solution, a silanecoupling agent, alcohol, a surfactant, and aluminum hydroxide colloid are mixed to prepare a nano silica emulsion A, hydroxyethyl cellulose is dissolved in water to prepare a solution B. a wetting dispersing agent and the emulsion A are mixed to prepare a solution C, the solution B, the solution C, an inorganic pigment and water are mixed, and a mixture is added to the inorganic filler to prepare a slurry D, and the slurry D is uniformly mixed with the wetting dispersing agent, a defoaming agent, a bactericide, a water-based fluorocarbon emulsion, a film-forming auxiliary agent, a thickenerand water to obtain the self-cleaning aqueous fluorocarbon building coating. The method is characterized in that the hydrophobic particles are dispersed in water by coating with a surfactant, and combined with the aqueous fluorocarbon coating, so that the optical properties, anti-aging properties and washing performance of the fluorocarbon coating are greatly improved, the hydrophilicity is good,and the self-cleaning performance is excellent.

Description

technical field [0001] The invention relates to the field of coatings, in particular to the preparation of water-based coatings, in particular to a self-cleaning water-based fluorocarbon architectural coating and a preparation method. Background technique [0002] Traditional solvent-based coatings contain a large amount of volatile organic compounds (VOC for short) during their manufacture and use, which has brought more or less pollution and damage to the environment and caused damage to the human body. While the development of coatings is constantly improving human material production and living needs, it also rapidly deteriorates the environment. The resin used in water-based coatings is synthesized with water as the carrier. At present, water-based acrylic coatings and water-based polyurethane coatings are widely used. Compared with solvent-based coatings, its biggest advantages are lower VOC content, no odor, no burning and low toxicity, but it also has poor water res...

AI Technical Summary

Problems solved by technology

[0009] Aiming at the defects that the currently widely used water-based fluorocarbon coatings have no self-cleaning function, poor stain resistance and antibacterial properties, poor abrasion resistance of the formed paint film, and the toxic solvent components contained in the coating will cause damage to the human environment , the present invention proposes a self-cleaning water-based fluorocarbon architectural coating and its preparation method, thereby significantly improving the optical properties, anti-aging performance, and washability of the fluorocarbon coating, and has excellent self-cleaning function

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