The invention discloses a weather-resistant self-cleaning
coating as well as a preparation method and application thereof, and belongs to the technical field of
coating preparation. The self-cleaning
coating is prepared from 50-70 parts of deionized water, 20-28 parts of protective glue, 20-35 parts of
hydroxyethyl cellulose, 18-25 parts of latex, 5-8 parts of a
preservative, 3-7 parts of a dispersing agent, 4-7 parts of a
wetting agent, 1-2 parts of a defoaming agent, 3-5 parts of
pigment filler, 3-5 parts of a coalescing agent and 2-4 parts of a
thickening agent. The latex is composed of
silicone acrylic latex and pure acrylic latex. By adding the raw materials with nano structures, a concave-convex shape similar to a
lotus leaf is formed in the
drying and film-forming process of the coating, so that
dust particles are attached to the surface of the coating and are in a suspended state, and meanwhile, the
contact angle between water and the surface of the coating is increased, so that water drops can roll down on the surface of the coating. In addition, hydrophobic substances are introduced into the solution, so that the coating is automatically layered in the
drying and film forming process, a hydrophobic layer is enriched on the surface of the coating, it is guaranteed that the adsorbed polluting particles are separated from the surface of the coating under the scouring of wind and rain, and the self-cleaning purpose is achieved.