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

A real stone paint, quick-drying technology, applied in the field of painting, can solve the problems of lower water volatilization speed, slow drying speed, color change and poor shockproof effect of the lower layer, and achieve simple operation, short process and long preparation cycle Effect

Active Publication Date: 2019-03-29
亚士创能新材料(滁州)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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 t

Method used

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

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preparation example Construction

[0038] Another aspect of the present invention provides a method for preparing the quick-drying thick real stone paint imitation stone sheet described in the above embodiments, comprising the following steps:

[0039] Prepare mixed emulsion: mix thermosetting acrylic resin, water-based thermosetting amino resin and thermoplastic acrylic resin with a glass transition temperature of ≤5°C, and hydroxyethyl fiber with a viscosity of 3000-10000mpa·s and a concentration of 1%-3% Aqueous solution of plain ether, one or more of alkali-swellable thickeners or polyurethane thickeners, deionized water and auxiliary agents are fully dispersed and mixed uniformly to obtain a mixed emulsion for use;

[0040] Preparation of quick-drying real stone paint: Gradually and slowly add natural colored sand or sintered colored sand to the mixed emulsion, the weight ratio of the mixed emulsion to natural colored sand or sintered colored sand is 1: (2-4), after Stir evenly without agglomeration to obt...

Embodiment 1

[0045] 1. Prepare mixed emulsion:

[0046] The mixed emulsion formula is:

[0047]

[0048] Add thermosetting acrylic emulsion, amino resin (the water-based thermosetting amino resin in this example refers to Cymel 325 amino resin) and thermoplastic acrylic resin (Tg is less than or equal to 5°C) in a clean reaction kettle according to the above formula. , and open the disperser at a low speed to stir the three emulsions evenly;

[0049] Then gradually turn on the medium-high speed of the disperser (about 500-700 rpm), and add preservatives in turn [the preservatives are isothiazolinones such as Kathon (5-chloro-2-methyl-4-isothiazoline- 3-ketone), one or more mixtures of BIT (1,2-phenylpropylisothiazolin-3-one)] and 1.5% hydroxyethyl cellulose aqueous solution (the aqueous solution preparation method is: high-speed dispersion in formula water Slowly add the hydroxyethyl cellulose ether powder under the environment, and disperse at a high speed to form an aqueous solution w...

Embodiment 2

[0056] 1. Prepare mixed emulsion:

[0057] The mixed emulsion formula is:

[0058]

[0059] Put thermosetting acrylic emulsion, amino resin, and thermoplastic acrylic resin into a clean reaction kettle according to the formula, and turn on the disperser at a low speed to stir the three emulsions evenly;

[0060] Gradually turn on the high-speed (about 500-700 rpm) of the disperser, add preservatives, 2.5% hydroxyethyl cellulose aqueous solution (the preparation method of this aqueous solution is: slowly add the hydroxyethyl cellulose in the formula water under a high-speed dispersion environment) Base cellulose ether powder, and disperse at a high speed to form an aqueous solution with a concentration of 2.5%. There should be no cellulose agglomeration in the aqueous solution to ensure its uniform state. If necessary, a PH regulator can be added to accelerate the dissolution process) and fully dispersed evenly ;Reduce the speed of the disperser, slowly add the film-forming...

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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...

Claims

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Application Information

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IPC IPC(8): C04B26/28C04B111/54
CPCC04B26/285C04B2111/00267C04B2111/54C04B24/2641C04B24/30C04B2103/44C04B2103/0094C04B2103/61C04B2103/0068C04B22/06C04B14/068C04B18/023C04B24/026C04B24/023
Inventor 温宇莹徐志新李金钟
Owner 亚士创能新材料(滁州)有限公司
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