High-solid-content interior and exterior crosslinked type water-in-water colorful granite paint and preparation method thereof

Abstract

The invention discloses high-solid-content exterior crosslinked type water-in-water colorful granite paint. The paint comprises a dispersing phase, a dispersing medium and a suspension emulsion, wherein the weight ratio of the dispersing phase to the dispersing medium to the suspension emulsion is (50-60): (20-25): (20-25); the dispersing phase comprises deionized water, bentonite, alkali-tackified aqueous polyurethane resin, a wetting agent, a dispersing agent, a defoaming agent, a filling material, ceramic pigment, a mould proof and antiseptic agent, a film-forming aid and an aqueous isocyanate and an association type rheological agent; the dispersing medium comprises a bentonite solution and alkaline inorganic sol; and the suspension emulsion comprises a PUA (polyurethane acrylate) polyurethane water dispersion or aqueous silicon resin, an association type rheological agent, a mould proof and antiseptic agent and deionized water. The high-solid-content interior and exterior crosslinked type water-in-water colorful granite paint disclosed by the invention is a high-solid-content full-aqueous product obtained by adopting an interior and exterior crosslinking technique and is an environmentally-friendly decoration material having extremely good stability and high coating rate, has the service life more than 10 years and is an idea substitute of marble, granite, rock true mineral varnish and the like.

Description

technical field [0001] The invention relates to a water-in-water multicolored granite paint with high solid content internally and externally linked, and also relates to a preparation method of the colorful granite paint. Background technique [0002] Natural granite is widely used in high-end exterior wall decoration projects because of its excellent durability, hard texture, rich texture, and good durability. After polishing, it is as bright as a mirror and has gorgeous and noble decorative and protective effects. However, as a brittle material, natural stone has poor material uniformity and large dispersion of bending strength. It is inevitable that some slight and difficult-to-find internal injuries will occur in the process of generation, mining and processing. Moreover, excessive mining will cause soil erosion, which is not conducive to the protection of the ecological environment. Although stone does not bear the load of the three-dimensional structure in the process...

AI Technical Summary

Problems solved by technology

[0004] At present, there are also all-water-based colorful granite paints for interior and exterior walls on the market, but due to the simple physical coating used in its production, or the use of anion and cation external gel technology or colloidal polar substances and base paint gels (color particle surface heterosexual metal ions) external gel technology, the gel reaction time is long (2-3 hours) and the color particles of the product are not stable enough, easy to bleed and cross-color during storage, because the concentration of ions and the amount of addition will affect the color particles The lower the concentration of metal ions, the smaller the color particles, and the softer the coating film formed by the gel, which is prone to bleeding of color particles to the continuous phase and turbidity of the continuous phase; at the same time, the concentration of metal ions in the gelling agent Or the amount of addition should not be too high, otherwise the gel will be excessive, the particles will be too hard, and the fusion between the monochromatic particles will be poor after spraying, and the surface will have similar small crusts, and the appearance will not be like natural granite.

In the end, the texture of the stone is poor, and the resulting coating has low solid content, low coating amount, and high construction cost, and has not really formed commercialization and industrialization.

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