Quick-drying stone-like paint, quick-drying thick stone-like paint stone-like sheet and preparation method thereof

Abstract

The invention provides quick-drying stone-like paint, a quick-drying thick stone-like paint stone-like sheet and a preparation method thereof. The quick-drying stone-like paint is prepared from mixedemulsion and natural color sand or sintered color sand, wherein the weight ratio of the mixed emulsion to the natural color sand or sintered color sand is 1 : (2 to 4); the mixed solution is preparedfrom 55 to 65 percent of film-forming resin, 15 to 25 percent of a low-viscosity hydroxyethyl cellulose ether water solution, 1 to 1.5 percent of a thickener, 0.3 to 0.5 percent of a PH (Potential ofHydrogen) regulator, 10 to 25 percent of water and the balance of an assistant; the film-forming resin is a mixture of thermosetting acrylic resin, water-borne thermosetting amino resin and thermoplastic acrylic resin of which the glass transition temperature is smaller than or equal to 5 DEG C; the thickener is one or a mixture of several of an alkali swelling thickener or a polyurethanes thickener. According to the quick-drying stone-like paint provided by the invention, the thermosetting acrylic resin and the water-borne thermosetting amino resin are capable of enabling bubbling not to appear in a coating layer and air holes not to be form in the surface of the coating layer while the coating layer is quickly cured and dried at high temperature, so that defects of the prior art are overcome.

Description

technical field [0001] The present invention relates to the technical field of painting, more specifically, to a quick-drying real stone paint, a quick-drying thick real stone paint imitation stone sheet prepared by using the quick-drying real stone paint and the quick-drying thick real stone The invention discloses a preparation method of a lacquered imitation stone sheet. Background technique [0002] Real stone paint, as a coating that can form a relatively rough stone-like effect, can simulate the effects of various natural stones such as marble, granite, and sandstone, and is widely used. In the ultimate pursuit of the effect of natural stone, in recent years, various real stone paints and coatings with imitation stone effects have emerged in an endless stream. In particular, the method of using real stone paint / colored slurry to prepare stone-like flexible stone sheets by using various forming molds has become popular in recent years. The flexible stone sheet prepare...

AI Technical Summary

Problems solved by technology

However, after the latex particle layer forms a surface conjunctiva, the volatilization rate of the lower layer of water is greatly reduced, and the actual drying speed of the existing real stone paint is very slow. Under standard conditions, the real stone paint coating with a thickness of more than 2.5mm can be dried within 24h to 72h. time, and affected by the value of emulsion Tg (Tg refers to the glass transition temperature of emulsion), ambient temperature / humidity, surface air volume, etc., if the real stone paint film is forced to dry, it is easy to form bulges on the real stone paint film layer (that is, empty drum), or a large number of pores are formed when water vapor volatilizes, resulting in increased surface porosity of the coating, color change and poor shockproof effect, etc.

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