CN105131755B - A kind of preparation method of the self-crosslinking true mineral varnish of liquid sliver - Google Patents

Abstract

The invention relates to a preparation method of self-crosslinking liquid rock chip real stone paint. The purpose is that the preparation method provided has the characteristics of simple process, low energy consumption, environmental friendliness and easy operation. The technical solution is: a preparation method of self-crosslinking liquid rock flake real stone paint, which is carried out according to the following steps: 1) the self-crosslinking liquid rock flake real stone paint uses organic silicon modified emulsion as a film-forming substance, and self-crosslinking liquid rock flake as a film-forming substance. Colored decorative material, using natural colored sand as imitation stone filler; 2) stirring the raw materials in step 1) evenly to obtain the finished product of crosslinked liquid rock flake real stone paint; the preparation method of the self-crosslinking liquid rock flake solution is: (1) self-crosslinking liquid rock flake solution Preparation of crosslinked liquid rock slice base paint; (2) preparation of self-crosslinking liquid rock slice continuous phase; (3) preparation of self-crosslinking liquid rock slice solution.

Description

A kind of preparation method of self-crosslinking liquid rock chip real stone paint

technical field

The invention relates to the technical field of chemical engineering, in particular to a preparation method of self-crosslinking liquid rock flake genuine stone paint in decorative coatings for exterior wall construction.

technical background

As we all know, the application of natural stone in architecture makes people feel elegant, solemn and luxurious; but in the actual decoration application process, there are many safety hazards, and the energy consumption is too large, which is not conducive to environmental protection. Based on these deficiencies, the engineering exterior wall coating industry is committed to developing various imitation stone coatings, in order to achieve natural stone decorative effects with natural colors, thick textures, realistic textures, and hard stones; for example: water-based colorful paint, water-based water-based sand paint , rock flake real stone paint, real stone paint, etc., all have a strong imitation stone effect, achieving a wonderful workmanship effect.

However, the rock flakes used in the rock flake real stone paint are basically solid artificial rock flakes, which have the disadvantages of single color, fragility, and large pieces are not easy to spray out; in addition, the rock flakes are easy to float on the surface of the real stone paint during the spraying process, affecting the overall quality In addition, the process of making artificial rock slices is complex and energy-consuming, which is not conducive to environmental protection.

Contents of the invention

The object of the present invention is to provide a preparation method of imitation stone coating with simple process, low energy consumption, environmental friendliness and easy operation.

The technical scheme of the present invention is,

A preparation method of self-crosslinking liquid rock chip real stone paint, carried out according to the following steps:

1) Self-crosslinking liquid rock flake real stone paint uses silicone-modified emulsion as film-forming material, self-crosslinking liquid rock flake as color decoration material, and natural colored sand as imitation stone filler; the raw materials and corresponding parts by weight are: Silicone modified acrylate elastic emulsion 30-40, self-crosslinking liquid rock chip solution 20-30, natural colored sand 55-65, mixing aid 1-10;

2) Stir the raw materials in step 1) evenly to obtain the finished product of cross-linked liquid rock flake real stone paint;

The preparation method of the self-crosslinking liquid rock chip solution is:

(1) Preparation of self-crosslinking liquid rock chip base paint

Silicone-modified elastic emulsion is used as film-forming material, rutile titanium dioxide and calcined kaolin are used as fillers; cellulose and modified bentonite are used as cross-linking agents and flocculants, and various additives and deionized water are used as carriers. Dispersed by machine to form a base paint with high surface gloss and good continuity: according to the vividness of natural stone, select the color paste to adjust to the required color; the raw materials and corresponding parts by weight are: silicone modified acrylate elastic emulsion 25- 35. Hydroxyethyl cellulose 1-10, rutile titanium dioxide 10-15, calcined kaolin 15-25, crosslinking agent 1-6, flocculant 1-8, wetting agent 0.3-4, dispersant 0.3-4 , Defoamer 0.3-4, tap water or deionized water 20-30, appropriate amount of pigment;

After dispersing the above raw materials with a disperser, the cross-linked liquid rock chip base paint is obtained;

(2) Preparation of continuous phase of self-crosslinking liquid rock slice

Using deionized water as the continuous phase, silicate and alginate as the dispersed phase; wherein the raw materials and corresponding parts by weight are: deionized water 70-90, silicate 1-10, alginate 1-10; The disperser disperses into a semi-suspended mixture, that is, the continuous phase obtained from the cross-linked liquid rock slice;

(3) Preparation of self-crosslinking liquid rock chip solution

Add 70-80 parts by weight of self-crosslinking liquid rock chip base paint to 20-30 parts by weight of self-crosslinking liquid rock chip continuous phase, and then use a disperser to disperse into colored particles of the required size, and complete crosslinking after standing for 24 hours , the hardness, toughness and glossiness of the particles in the solution are up to standard;

The mixing aid in the step 1) includes wetting agent, dispersant and defoamer in the same proportion.

The flocculant is one of aluminum sulfate, aluminum chloride, ferric sulfate and ferric chloride.

The wetting agent is one of ethanol, propylene glycol and glycerin.

The dispersant is one of barium stearate, zinc stearate, calcium stearate, polypropylene, polystyrene and polyethylene glycol.

The defoamer is one of corn oil, propylene oxide, ethylene oxide and polydimethylsiloxane.

The preparation method adopted in the present invention can obtain real stone paint products with realistic imitation stone effects, which can significantly improve the architectural decoration effect when applied to buildings; after replacing conventional solid rock slices with liquid rock slices prepared by self-crosslinking technology, the production process is greatly shortened. At the same time, the viscosity of the finished product is suitable and the workability is good, which reduces the difficulty of construction to a certain extent; after the film is formed, a dense and continuous protective film is formed, which improves the weather resistance of the paint film; at the same time, it has a good combination with the base layer , to avoid defects such as paint film peeling off.

detailed description

All the raw materials of the present invention are purchased from outside; wherein the silicone-modified acrylic elastic emulsion is purchased from Guangdong Bardford Company.

Further description below in conjunction with specific examples.

Example 1

1. Preparation of self-crosslinking liquid rock slices

(1) Preparation of self-crosslinking liquid rock slice base paint

The following raw materials are taken in parts by weight: 30 parts by weight of silicone modified acrylate elastic emulsion; 5 parts of hydroxyethyl cellulose; 12 parts of rutile titanium dioxide; ) is 5; wetting agent (ethanol) 2, dispersant (zinc stearate) 2, defoamer (corn oil) 2, tap water or deionized water 25;

Add the above raw materials into the disperser to disperse into a base paint with high surface gloss and good continuity, and then adjust the color of the base paint according to the natural stone until it is adjusted to one or more colors required for use;

(2) Preparation of continuous phase of self-crosslinking liquid rock slice

Take the following raw materials in parts by weight: water 70, silicate 10, alginate 1;

Put the above raw materials into a multifunctional disperser and disperse for 20 minutes to form a semi-suspended milky white mixture, which is ready for use;

(3) Preparation of self-crosslinking liquid rock slices

Add 75 parts by weight of the self-crosslinking liquid rock chip base paint to 25 parts by weight of the self-crosslinking liquid rock chip continuous phase, disperse with a multi-functional disperser to obtain various color particles of 2-3 mm in size, and complete the crosslinking after standing for 24 hours ,stand-by;

Two, the preparation of self-crosslinking liquid rock flake real stone paint finished product (the ingredients are parts by weight)

Silicone-modified acrylate elastic emulsion 30, self-crosslinking liquid rock chip solution 10, natural colored sand 65, wetting agent (ethanol) 0.3, dispersant dispersant (zinc stearate) 4, defoamer (corn oil) 0.3, stir evenly with a mixing mixer to get the finished product of cross-linked liquid rock flake real stone paint.

Example 2

1. Preparation of self-crosslinking liquid rock slices

(1) Preparation of self-crosslinking liquid rock slice base paint

Take the following raw materials in parts by weight: silicone modified acrylate elastic emulsion 35; hydroxyethyl cellulose 1; rutile titanium dioxide 15, calcined kaolin: 15; crosslinking agent (polyol) 6, flocculant (ferric chloride) 1; wetting agent (glycerin) 4, dispersant (polystyrene) 0.3, defoamer (polydimethylsiloxane) 4, tap water or deionized water 20;

Add the above raw materials into the disperser to disperse into a base paint with high surface gloss and good continuity, and then adjust the color of the base paint according to the natural stone until it is adjusted to one or more colors required for use;

(2) Preparation of continuous phase of self-crosslinking liquid rock slice

Take the following raw materials in parts by weight: water 90, silicate 1, alginate 10;

Put the above raw materials into a disperser and disperse for 20 minutes to form a semi-suspended milky white mixture for use;

(3) Preparation of self-crosslinking liquid rock slices

Add 70 parts by weight of self-crosslinking liquid rock chip base paint to 30 parts by weight of self-crosslinking liquid rock chip continuous phase, disperse with a disperser to obtain various color particles of 4-5 mm in size, and complete crosslinking after standing for 24 hours. use;

Two, the preparation of self-crosslinking liquid rock flake real stone paint finished product (the ingredients are parts by weight)

Silicone-modified acrylate elastic emulsion 25, self-crosslinking liquid rock chip solution 15, natural colored sand 60, wetting agent (glycerin) 2, dispersant (polystyrene) 2, defoamer 2, stir evenly with a mixer , that is, the finished product of cross-linked liquid rock flake real stone paint.

Example 3

1. Preparation of self-crosslinking liquid rock slices

(1) Preparation of self-crosslinking liquid rock chip base paint

Take the following raw materials in parts by weight: silicone modified acrylate elastic emulsion 25; hydroxyethyl cellulose 10; rutile titanium dioxide 10, calcined kaolin: 25; crosslinking agent (polyol) 1, flocculant (ferric sulfate) is 8; Wetting agent (propylene glycol) 0.3, dispersant (polypropylene) 4, defoamer (propylene oxide) 0.3, tap water or deionized water 30;

Add the above raw materials into the disperser to disperse into a base paint with high surface gloss and good continuity, and then adjust the color of the base paint according to the natural stone until it is adjusted to one or more colors required for use;

(2) Preparation of continuous phase of self-crosslinking liquid rock slice

Take the following raw materials in parts by weight: water 80, silicate 5, alginate 5;

Put the above raw materials into a disperser and disperse for 20 minutes to form a semi-suspended milky white mixture for use;

(3) Preparation of self-crosslinking liquid rock slices

Add 80 parts by weight of the self-crosslinking liquid rock chip base paint to 20 parts by weight of the self-crosslinking liquid rock chip continuous phase, disperse with a disperser to obtain various color particles of 7-8 mm in size, and complete the crosslinking after standing for 24 hours. use;

Two, the preparation of self-crosslinking liquid rock flake real stone paint finished product (the ingredients are parts by weight)

Silicone modified acrylate elastic emulsion 20, self-crosslinking liquid rock chip solution 20, natural colored sand 55, wetting agent (propylene glycol) 4, dispersant (polypropylene) 0.3, defoamer (propylene oxide) 4, use Stir evenly with a mixer to get the finished product of cross-linked liquid rock flake real stone paint.

Spray inspection

Spray according to the texture of natural stone to achieve the appearance of natural stone, and the construction performance is good.

The test conforms to the standard, and the test results are shown in the table below:

Claims (6)

1. A preparation method of self-crosslinking liquid rock chip real stone paint, carried out according to the following steps: 1) Raw materials and corresponding parts by weight are: silicone modified acrylate elastic emulsion 30-40, self-crosslinking liquid rock chip solution 20-30, natural colored sand 55-65, mixing aid 1-10; 2) Stir the raw materials in step 1) evenly to obtain the finished product of cross-linked liquid rock flake real stone paint; The preparation method of the self-crosslinking liquid rock chip solution is: (1) Preparation of self-crosslinking liquid rock chip base paint Raw materials and corresponding parts by weight are: silicone modified acrylate elastic emulsion 25-35, hydroxyethyl cellulose 1-10, rutile titanium dioxide 10-15, calcined kaolin 15-25, crosslinking agent 1-6, flocculation Agent 1-8, wetting agent 0.3-4, dispersant 0.3-4, defoamer 0.3-4, tap water or deionized water 20-30, appropriate amount of pigment; After dispersing the above raw materials with a disperser, the cross-linked liquid rock chip base paint is obtained; (2) Preparation of continuous phase of self-crosslinking liquid rock slice Using deionized water as the continuous phase, silicate and alginate as the dispersed phase; wherein the raw materials and corresponding parts by weight are: deionized water 70-90, silicate 1-10, alginate 1-10; The disperser disperses into a semi-suspended mixture, that is, the continuous phase obtained from the cross-linked liquid rock slice; (3) Preparation of self-crosslinking liquid rock chip solution Add 70-80 parts by weight of self-crosslinking liquid rock chip base paint to 20-30 parts by weight of self-crosslinking liquid rock chip continuous phase, then use a disperser to disperse into colored particles of required specifications, and complete crosslinking after standing for 24 hours . 2. The preparation method of self-crosslinking liquid rock flake real stone paint according to claim 1, characterized in that: the mixing aid in the step 1) includes a wetting agent, a dispersant and a defoamer in the same proportion. 3. The preparation method of self-crosslinking liquid rock flake real stone paint according to claim 1, characterized in that: the flocculant is one of aluminum sulfate, aluminum chloride, ferric sulfate and ferric chloride. 4. The preparation method of self-crosslinking liquid rock chip real stone paint according to claim 1, characterized in that: the wetting agent is one of ethanol, propylene glycol and glycerin. 5. the preparation method of self-crosslinking liquid rock chip real stone paint according to claim 1 is characterized in that: described dispersant is barium stearate, zinc stearate, calcium stearate, polypropylene, polystyrene and one of polyethylene glycols. 6. according to the preparation method of claim 1 or 2 or 3 or 4 or 5 described self-crosslinking liquid rock chip real stone paints, it is characterized in that: described defoamer is corn oil, propylene oxide, ethylene oxide and One of polydimethylsiloxane.