CN112724721A

CN112724721A - Inorganic real stone paint and preparation method thereof

Info

Publication number: CN112724721A
Application number: CN202011566376.0A
Authority: CN
Inventors: 丁欣
Original assignee: Sankeshu Shanghai New Material Research Co ltd
Current assignee: Sankeshu Shanghai New Material Research Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-04-30

Abstract

The invention relates to an inorganic real stone paint which is prepared from the following components in parts by mass: 8-10 parts of deionized water, 0.2-0.3 part of cellulose, 0.2-0.3 part of bactericide, 0.2-0.3 part of pH regulator, 4-5 parts of pure acrylic emulsion, 8-10 parts of inorganic material, 0.4-0.5 part of antifreezing agent, 0.2-0.3 part of film-forming additive, 0.1-0.2 part of defoaming agent, 0.05-0.1 part of waterproofing agent, 0.1-0.3 part of thickening agent, 0.1-1 part of monoalkoxy pyrophosphate and 70-80 parts of natural colored sand. The VOC content of the paint liquid is reduced by adding the components of the inorganic material, so that the paint liquid is more environment-friendly; the inorganic coating system has better weather resistance and is not easy to whiten when meeting water.

Description

Inorganic real stone paint and preparation method thereof

Technical Field

The invention relates to an inorganic real stone paint and a preparation method thereof.

Background

The real stone paint can make three-dimensional textures, can imitate the texture and the effect of stone materials and is distinguished from the traditional latex paint, so that the original paint is taken into the three-dimensional coating from the flat coating of the latex paint.

The development of the stone-like paint has been advanced greatly on applicability and modeling types, compared with the traditional paint, the stone-like paint is more three-dimensional in decorative effect and better in air permeability, can be constructed on various modeling base surfaces such as brick shapes, cylindrical shapes, vertical surface shapes, gourd shapes and the like, and shows unique personalized charm.

But simultaneously has certain disadvantages: firstly, the stone-like paint is widely used for exterior walls, the prepared raw materials are emulsion, and the emulsion has poor weather resistance to pollutant acid and the like in the modern industrial society; secondly, after being wetted by rainwater, the paint surface is whitened due to the fact that emulsion particles absorb water and hydrophilic substances such as cellulose and the like; organic matters have higher VOC emission and can affect the environment and human health; the natural colored sand accounts for about 70-80% of the components in the stone-like paint, and the high-content colored sand makes the paint not compact in film forming, deposits on the surface of the paint after being infected by dust and the like in the environment, makes the paint film easy to become dirty and old, and can permeate the dust into the paint after meeting rain water to cause hair and rain marks.

Disclosure of Invention

The invention provides an inorganic stone-like paint and a preparation method thereof, wherein the colored sand in the inorganic stone-like paint and the paint form a film tightly, so that the film is not easy to become dirty and old, and is not easy to cause flower and rain marks after meeting rain.

The invention is realized by the following technical scheme:

the inorganic real stone paint is prepared from the following components in parts by mass:

8-10 parts of deionized water, 0.2-0.3 part of cellulose, 0.2-0.3 part of bactericide, 0.2-0.3 part of pH regulator, 4-5 parts of pure acrylic emulsion, 8-10 parts of inorganic material, 0.4-0.5 part of antifreezing agent, 0.2-0.3 part of film-forming additive, 0.1-0.2 part of defoaming agent, 0.05-0.1 part of waterproofing agent, 0.1-0.3 part of thickening agent, 0.1-1 part of monoalkoxy pyrophosphate and 70-80 parts of natural colored sand.

Further, the inorganic material is formed by mixing potassium silicate and silica sol according to the mass ratio of 3-7: 3-5.

Further, the antifreezing agent is propylene glycol (produced by the ocean chemical industry).

Furthermore, the film-forming additive is formed by mixing alcohol ester twelve and ethylene glycol monobutyl ether according to the mass ratio of 0.1-0.15: 0.1-0.2.

Further, the monoalkoxy pyrophosphate is isopropyl tri (dioctyl pyrophosphato acyloxy) titanate.

Further, the natural colored sand is prepared by mixing 40-80 meshes of colored sand and 80-120 meshes of colored sand according to the mass ratio of 1: 1-2.

Furthermore, the pure acrylic emulsion is one of pure acrylic emulsion Japanese Showa AP-4765 and Pasteur Acronal7671 or is mixed according to the mass ratio of 3-4: 1-2.

A preparation method of inorganic real stone paint comprises the steps of firstly adding deionized water into a container, then adding cellulose at the stirring speed of 300-500rpm, and continuing stirring for 1-2 min;

then adding the bactericide and the Ph regulator at the stirring speed of 800-;

then reducing the rotating speed to 600-800rpm, then adding the emulsion, the potassium silicate and the silica sol, and then continuing to stir for 3-5 min;

then keeping the rotating speed at 600-800rpm, adding an antifreezing agent, a film forming aid, a defoaming agent, a waterproof agent, monoalkoxy pyrophosphate and a thickening agent, and then continuing stirring for 3-5 min;

finally, adding the natural colored sand at the stirring speed of 200-300rpm, and continuing stirring for 8-10 min.

Compared with the prior art, the invention has the following advantages:

(1) the VOC content of the paint liquid is reduced by adding the components of the inorganic material, so that the paint liquid is more environment-friendly;

(2) the inorganic coating system has better weather resistance and is not easy to whiten when meeting water;

(3) the added inorganic substances of potassium silicate and silica sol can better bond natural color sand in the paint liquid, so that the natural color sand has higher strength and weather resistance after film forming, the monoalkoxyl group can react with quartz sand and hydroxyl on the surface of wall concrete to form a chemical bond, and the pyrophosphate can be decomposed to form phosphate ester group and combined with emulsion particles to strengthen the interlayer cohesion;

(4) through screening the emulsion, the pure acrylic emulsion capable of being rapidly associated with the cellulose is found, and the internal bonding force and strength of a paint film are further enhanced;

(5) the used natural color sand is obtained by crushing quartz blocks, has extremely high strength, is widely applied to garage floor coating, has the thickness of a paint film of about 1-2mm after being mixed with a plurality of items to prepare paint liquid, has stretching and inhibiting effects on wall cracks due to high strength and high thickness of a paint surface in wall decoration, and better decorates a wall surface;

(6) the addition of the stain-resistant emulsion and the waterproof auxiliary agent effectively prevents environmental pollution and keeps the coating bright and beautiful as new.

Detailed Description

The invention is further illustrated below with reference to specific embodiments and specific examples:

detailed description of the preferred embodiments

The inorganic material is formed by mixing potassium silicate and silica sol according to the mass ratio of 3-7: 3-5.

The antifreezing agent is propylene glycol (produced by ocean chemical industry).

The film-forming additive is formed by mixing alcohol ester twelve and ethylene glycol monobutyl ether according to the mass ratio of 0.1-0.15: 0.1-0.2.

The monoalkoxy pyrophosphate is isopropyl tri (dioctyl pyrophosphate acyloxy) titanate.

The natural colored sand is formed by mixing 40-80 meshes of colored sand and 80-120 meshes of colored sand according to a mass ratio.

then adding the bactericide and the Ph regulator at the stirring speed of 800-;

Example 1

The formulation of each component of this example is shown in table 1, and the preparation method of the inorganic real stone paint of this example is as follows:

adding deionized water into a container, adding cellulose at the stirring speed of 300rpm, and continuing stirring for 1 min;

then adding the bactericide and the pH regulator at the stirring speed of 800rpm, increasing the rotation speed to 1200rpm, and continuing stirring for 10 min;

then reducing the rotating speed to 600rpm, then adding the emulsion, potassium silicate and silica sol, and then continuing to stir for 3-5 min;

then keeping the rotating speed at 600rpm, adding an antifreezing agent, a film forming aid, a defoaming agent, a waterproof agent, monoalkoxy pyrophosphate and a thickening agent, and then continuing to stir for 3 min;

and finally adding the natural colored sand at the stirring speed of 200rpm, and continuing stirring for 8 min.

Table 1 formulation of inorganic real stone paint of example 1

Example 2

The formulation of each component of this example is shown in table 2, and the preparation method of the inorganic real stone paint of this example is as follows:

adding deionized water into a container, adding cellulose at a stirring speed of 500rpm, and continuously stirring for 2 min;

then adding a bactericide and a Ph regulator at a stirring speed of 1000rpm, increasing the rotation speed to 1500rpm, and continuing stirring for 20 min;

then reducing the rotating speed to 800rpm, then adding the emulsion, potassium silicate and silica sol, and then continuing stirring for 5 min;

then keeping the rotating speed at 800rpm, adding an antifreezing agent, a film forming aid, a defoaming agent, a waterproof agent, monoalkoxy pyrophosphate and a thickening agent, and then continuing to stir for 5 min;

and finally adding the natural colored sand at the stirring speed of 300rpm, and continuing stirring for 10 min.

Table 2 formulation of inorganic real stone paint of example 2

Example 3

The formulation of each component of this example is shown in table 3, and the preparation method of the inorganic real stone paint of this example is as follows:

adding deionized water into a container, adding cellulose at the stirring speed of 400rpm, and continuing stirring for 1.5 min;

then adding a bactericide and a Ph regulator at the stirring speed of 900rpm, increasing the rotation speed to 1300rpm, and continuing stirring for 15 min;

then reducing the rotating speed to 700rpm, then adding the emulsion, potassium silicate and silica sol, and then continuing to stir for 4 min;

then keeping the rotating speed at 700rpm, adding an antifreezing agent, a film forming aid, a defoaming agent, a waterproof agent, monoalkoxy pyrophosphate and a thickening agent, and then continuing to stir for 4 min;

and finally adding the natural colored sand at the stirring speed of 250rpm, and continuing stirring for 9 min.

Table 3 formulation of inorganic real stone paint of example 3

Comparative example 1

This comparative example used an organic emulsion for the preparation of a paint liquid, in which inorganic materials, water repellent and monoalkoxy pyrophosphate were not used.

The cellulose in each example is prepared by mixing 250HBR of hydroxyethyl cellulose and EHM500 of associated ethyl hydroxyethyl cellulose according to a certain proportion, and the components in the tables of each example are shown in detail.

The bactericide of each of the above examples is MERGAL K9N a broad-spectrum in-can bactericide, and does not contain solvent and formaldehyde.

The pH regulator is AMP-95 of the Dow chemical or Butylethanolamine of the Epimedium.

The pure acrylic emulsion is one of pure acrylic emulsion Japanese Showa AP-4765 and Pasteur Acronal7671 or is mixed according to the mass ratio of 3-4:1-2, and the specific data are shown in the table of each example.

The defoaming agent is BYK-028.

The waterproof agent is SILRES BS 290.

The thickener is RM-8W, and is a hydrophobic modified polyurethane associative thickener.

The natural colored sand is 40-80 meshes and 80-120 meshes according to the mass ratio of 1:1 or 1: 2, mixing the components.

TABLE 4 Properties of the examples

As shown in Table 4, examples 1 to 3 of the present invention are excellent in water resistance and alkali resistance, high in VOC content, high in adhesive strength, and excellent in both rain mark resistance and artificial aging resistance.

The above description is only an embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.

Claims

1. An inorganic real stone paint is characterized in that: the composition is prepared from the following components in parts by mass:

2. The inorganic real stone paint as claimed in claim 1, wherein: the inorganic material is formed by mixing potassium silicate and silica sol according to the mass ratio of 3-7: 3-5.

3. The inorganic real stone paint as claimed in claim 1, wherein: the antifreezing agent is propylene glycol.

4. The inorganic real stone paint as claimed in claim 1, wherein: the film-forming additive is prepared by mixing alcohol ester twelve and ethylene glycol monobutyl ether according to the mass ratio of 0.1-0.15: 0.1-0.2.

5. The inorganic real stone paint as claimed in claim 1, wherein: the monoalkoxy pyrophosphate is isopropyl tri (dioctyl pyrophosphate acyloxy) titanate.

6. The inorganic real stone paint as claimed in claim 1, wherein: the natural colored sand is prepared by mixing 40-80 meshes of colored sand and 80-120 meshes of colored sand according to the mass ratio of 1: 1-2.

7. The inorganic real stone paint as claimed in claim 1, wherein: the pure acrylic emulsion is one of pure acrylic emulsion Japanese Showa AP-4765 and Pasteur Acronal7671 or is mixed according to the mass ratio of 3-4: 1-2.

8. A method for preparing the inorganic real stone paint of any one of claims 1 to 7, characterized in that: adding deionized water into a container, adding cellulose at the stirring speed of 300-500rpm, and continuously stirring for 1-2 min;

then adding the bactericide and the pH regulator at the stirring speed of 800-;

then reducing the rotation speed to 600-800rpm, then adding the emulsion and the inorganic material, and then continuing stirring for 3-5 min;