WO2017028471A1 - Water-based reflective heat-insulating faux stone texture coating system for construction and preparation method thereof - Google Patents

Abstract

A water-based reflective heat-insulating faux stone texture coating system for construction comprises a base coating, an intermediate coating, a surface coating and a masking varnish. The surface coating comprises stone texture particles obtained by mixing water, a paint, a heat insulating filling, a latex paint, an additive, and a protective colloid, and granulating a mixture thereof.

Description

Water-based reflective heat insulation imitation stone rock color coating system for building and preparation method thereof Technical field

The invention relates to a coating, in particular to a reflective heat-insulating stone-like color paint for building and a preparation method thereof.

Background technique

In modern society, people's requirements for architectural painting not only pay attention to the appearance of beauty, but also pay more and more attention to the green and low-carbon energy conservation of buildings, so-called green buildings. At present, building energy consumption accounts for 30% of the total energy consumption of the whole society, and the proportion is huge. Energy conservation and emission reduction has become one of the important tasks of the construction industry. Therefore, promoting the integration of building energy-saving decoration has important social and economic significance.

In terms of decoration, water-based imitation stone rock paint is a new type of environmentally-friendly architectural paint. It has both natural granite patterns and colors, as well as humanized and personalized patterns that transcend nature and return to nature. The decoration of the external wall can replace the rare stone with high price, and at the same time reduce the load-bearing capacity of the building, which has made a significant contribution to reducing engineering cost and beautiful environment. In principle, the water-based imitation stone color paint is suspended in an aqueous medium by a water-in-water process, and is sprayed to produce a plurality of colors for the exterior wall of the building. Single component coating. It is a water-based building stone rock color paint which is made of acrylic resin emulsion as a base material, combined with high-quality inorganic pigments and high-performance additives.

In terms of energy efficiency, brushing reflective thermal insulation coating is the easiest and most effective way to improve the thermal insulation of exterior walls and roofing, because it can improve the surface reflectance and emissivity of buildings. According to the composition of the solar radiation energy light, the visible light reflectance and the near-infrared light reflectance are maximized, and the performance of the building reflective heat-insulating coating can be maximized. The higher the total reflectance of the outer surface coating film, the more solar radiation heat reflected from the outer surface, and the less heat absorbed by the solar radiation. In other words, the less heat is conducted into the room, and the lower the air conditioning load in summer. At present, reflective heat-insulating coatings have been successfully applied in the fields of construction, petrochemical, industrial, etc., and their energy-saving effects are remarkable, which has been widely recognized by the industry.

Therefore, the water-based imitation stone rock color paint and the reflective heat-insulating paint are scientifically combined to prepare a water-based building reflective heat-insulating stone rock color paint. It not only has the beautiful decorative effect of water-based imitation stone color paint, but also has the green energy-saving features of reflective heat-insulating paint, which satisfies the modern building decoration. The requirements for energy-saving integration are of great significance.

Summary of the invention

The purpose of the invention is to select suitable low-cost and beautiful pigments, heat-insulating pigments and fillers to form a stone-like color paint with heat-reflecting and heat-insulating function, and to give the stone-like color paint better energy-saving.

The object of the present invention can be achieved by the following technical solutions: a reflective heat-insulating stone-like color paint for building, the base paint is a colorless and transparent closed primer, and its composition and weight fraction:

The emulsion described in the primer is selected from one or more of a styrene-acrylic emulsion, a pure acrylic emulsion, such as BASF's Acronal JC 7043 emulsion.

The water is distilled water or deionized water.

The auxiliary agent is a mineral oil defoaming agent, a silicone oil defoaming agent, a polyurethane thickener or an alkali swellable thickener;

The film forming aid is a high boiling point solvent such as ethylene glycol butyl ether, DBE, dodecyl alcohol or the like.

A reflective heat-insulating imitation stone rock color coating for building, the intermediate paint is a reflective and heat-insulating water-based intermediate paint, and its component and weight content:

The emulsion described in the intermediate coating is selected from one or more of a styrene-acrylic emulsion, a pure acrylic emulsion, a silicone-acrylic emulsion, etc., and the emulsion may have elasticity or inelasticity, such as the AP 5085 emulsion of Zhaori Chemical.

The coloring pigment is selected from one or more of titanium dioxide, iron oxide, ultramarine blue, organic pigment, etc., and the coloring pigment has a particle size controlled at 400-1500 nm, and at the same time, removes a pigment having strong solar absorption ability such as carbon black;

The heat insulating pigment filler is selected from the group consisting of oxides having a reflective function, such as nano titanium dioxide, zirconium silicate, inorganic ceramic pigment, zirconia, talc, ceramic powder, aluminum silicate, potassium titanate ;

The water is distilled water or deionized water.

The auxiliary agent is a mineral oil defoaming agent, a silicone oil defoaming agent, a polyurethane thickener or an alkali swellable thickener;

The film forming aid is a high boiling point solvent such as ethylene glycol butyl ether, DBE, dodecyl alcohol or the like.

The utility model relates to a water-based reflective and heat-insulating imitation stone rock color paint for building, and the surface coating material is a water-in-water imitation stone rock color paint with reflection heat insulation, the component and the weight content thereof:

1: protective glue solution:

Water: 85.0-93.0

Protective glue: 7.0-15.0

2: Granulation base paint:

3: Rock particles:

Granulation base paint: 50.0-60.0

Protective glue solution: 40.0-50.0

4: Finished surface coating:

The emulsion described in the topcoat is selected from one or more of a styrene-acrylic emulsion, a pure acrylic emulsion, a silicone-acrylic emulsion, and the like, and the emulsion may have elasticity or inelasticity, such as the SLX-1048-3 emulsion of Zhaori Chemical.

The coloring pigment is selected from one or more of titanium dioxide, iron oxide, ultramarine blue, organic pigment, etc., and the coloring pigment has a particle diameter controlled at 400-1500 nm, and at the same time, removes a pigment having strong absorption ability for sunlight;

The heat insulating pigment filler is selected from the group consisting of oxides having a reflective function, such as one or more of nano titanium dioxide, zirconium silicate, inorganic ceramic pigment, zirconia, talc, ceramic powder, aluminum silicate, and potassium titanate. ;

The water is distilled water or deionized water.

The auxiliary agent is a mineral oil defoaming agent, a silicone oil defoaming agent, a polyurethane thickener or an alkali swellable thickener;

The film forming aid is a high boiling point solvent such as ethylene glycol butyl ether, DBE, dodecyl alcohol or the like.

The utility model relates to a water-based reflective heat-insulating imitation stone rock color paint for building, and the cover varnish is a colorless transparent anti-staining excellent finish varnish, the composition and the weight content thereof:

The emulsion described in the overcoat varnish is selected from one or more of a pure acrylic emulsion, a silicone-acrylic emulsion or a two-component polyurethane, such as the TD-661 emulsion of Sunrise.

The water is distilled water or deionized water.

The auxiliary agent is a mineral oil defoaming agent, a silicone oil defoaming agent, a polyurethane thickener or an alkali swellable thickener;

The film forming aid is a high boiling point solvent such as ethylene glycol butyl ether, DBE, dodecyl alcohol or the like.

A method for preparing a water-based reflective heat-insulating rock-rock color coating system for a building, characterized in that the method comprises the following steps:

1) Preparation of primer

(a) After putting the emulsion into the stirred tank, add distilled water and mix well:

(b) adding the auxiliary agent in proportion and stirring evenly;

(c) adding a film-forming auxiliary agent in proportion and stirring for 0.5-1 hour until the dispersion is uniform to obtain a product;

2) Preparation of intermediate coating

(a) After the distilled water is first put into the stirred tank, various additives are added in sequence, and the mixture is uniformly stirred;

(b) proportionally adding the pigment and the reflective heat insulating filler, and stirring uniformly, adding the above slurry to a sand mill for grinding to a fineness of 20-25 μm;

(c) Add the emulsion in proportion and stir for 0.5-1 hours until the dispersion is uniform:

(d) Add the film-forming aid in proportion, stir for 0.5-1 hour, and mix well:

(e) Adjust the viscosity and stir evenly to obtain the product.

3) Preparation of top coat

(a) After the distilled water is first introduced into the stirred tank, the protective rubber powder is added, and the mixture is stirred and dissolved to obtain a protective gum solution;

(b) After the distilled water is put into the stirred tank, the additives are added in sequence, and the mixture is evenly mixed; the pigment and the reflective heat insulating filler are added in proportion, and the mixture is uniformly stirred, and the slurry is added to the sand mill for grinding to fineness. Up to 20-25 microns; add the emulsion in proportion, stir for 0.5-1 hours until the dispersion is uniform; add the protective rubber solution in proportion, stir for 0.5-1 hour; add the film forming aid in proportion, stir for 0.5-1 hour, adjust the viscosity The mixture is evenly stirred to obtain a granulated base paint.

(c) After the protective gum solution is first put into the stirred tank, the above-mentioned base paints are added in proportion, stabilized for 1-2 hours, and granulated to obtain rock colored particles.

(d) After the distilled water is first put into the stirred tank, various additives are added in sequence, and the mixture is uniformly stirred; the emulsion is added in proportion, stirred for 0.5-1 hour until the dispersion is uniform; the film-forming auxiliary agent is added in proportion, and stirred for 0.5-1 hour. Stir well; add the rock particles according to the proportion, stir for 0.5-1 hour, stir evenly to obtain the top coating;

4) Preparation of overcoat varnish

(a) After the distilled water is first put into the stirred tank, various additives are added in sequence, and the mixture is uniformly stirred;

(b) adding the emulsion in proportion and stirring for 0.5-1 hour until the dispersion is uniform;

(c) Adding a film-forming auxiliary agent in proportion, stirring for 0.5-1 hour. Stirring uniformly, the product is obtained.

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

(1) The water-based building reflection heat insulation imitation stone rock color paint has excellent reflection and heat insulation effect, energy saving and decoration integration.

(2) More excellent weather resistance, water resistance and stain resistance.

(3) The scope of application is wider.

(4) The water-based building reflective heat-insulating imitation stone rock color paint has long-term reflection and heat insulation performance.

detailed description

The present invention will be further described below in conjunction with specific embodiments, which are merely for further The features and advantages of the invention are set forth in the description and not in the claims.

Example 1

A water-based reflective heat-insulating imitation stone rock color coating system for building and a preparation method thereof, the group distribution ratio and preparation method of the coating are as follows:

(1) primer

Component name	Parts by weight
Acronal JC 7043 styrene-acrylic emulsion	40.0
Distilled water	10.0
Polyurethane thickener	0.2
NXZ defoamer	0.1
Dodecyl alcohol	3.0
PH regulator	0.1
Propylene glycol antifreeze	0.2
LXE fungicide	0.1

(2) Medium coating

Component name	Parts by weight
AP 5085 Elastic Emulsion	35.0
Distilled water	10.0
Polyurethane thickener	0.5
NXZ defoamer	0.2
Dodecyl alcohol	1.0
PH regulator	0.1
antifreeze	0.2
Fungicide	0.1
5040 dispersant	2.0
Titanium dioxide	10.0
Ceramic powder	10.0

Hollow glass beads

12.0

(3) Topcoat

(4) Cover varnish

Component name	Parts by weight
TD-661 Silicone Acrylic Emulsion	55.0
Distilled water	40.0
Polyurethane thickener	0.4
NXZ defoamer	0.2
Dodecyl alcohol	3.0
PH regulator	0.2
Propylene glycol antifreeze	1.0
LXE fungicide	0.2

The coating preparation process;

(1) Preparation of primer:

After putting 40.0 parts of styrene-acrylic emulsion into the stirred tank, add 10.0 parts of distilled water, stir evenly, add 0.1 part of NXZ defoamer, 0.2 part of polyurethane thickener, 3.0 parts of dodecyl alcohol, 0.1 part of LXE fungicide, 0.1 A portion of the pH adjuster and 0.2 parts of the propylene glycol antifreeze are stirred to obtain a primer.

(2) Preparation of medium coating:

After putting 10.0 parts of distilled water into the stirred tank, add 2.0 parts of 5040 dispersant and add 0.2. NXZ defoamer, 0.1 part LXE bactericide, 0.1 part PH adjuster and 0.2 part propylene glycol antifreeze, stir evenly; add 10.0 parts of titanium dioxide pigment and 10.0 parts of ceramic powder in sequence, stir at 2000-3000RPM 4 hours, until the dispersion is uniform, fineness ≤ 30 μm; 35.0 parts of AP5085 acrylate elastic emulsion is added to the above slurry, uniformly dispersed, then 1.0 part of dodecyl alcohol is added, and 12.0 parts of glass hollow microbeads are sequentially added, and 0.5 is used. The polyurethane thickener adjusts the viscosity; after passing the test, the package is quantitatively prepared.

(3) Preparation of top coat:

(a) After putting 90.0 parts of distilled water into the stirred tank, adding 7.0 parts of the protective rubber powder, stirring and dissolving uniformly, thereby obtaining a protective gum solution;

(b) After putting 40.0 distilled water into the stirred tank, add 0.3 parts of NXZ defoamer, 0.2 part of polyurethane thickener, 0.2 part of LXE bactericide, 0.2 part of pH adjuster and 1.0 part of propylene glycol antifreeze, and stir evenly; Add 5 parts of titanium dioxide and stir evenly. Add the above paddle to the sander and grind it to a fineness of 20-25 microns. Add 40.0 parts of SLX-1048-3 emulsion in proportion and stir for 0.5-1 hour until dispersed. Uniformly; 15.0 parts of protective glue solution is added in proportion, mixed for 0.5-1 hour; 3.0 parts of film-forming auxiliary agent is added in proportion, stirred for 0.5-1 hour, and stirred uniformly; proportionally added reflective heat-insulating pigment filler, stirring 0.5-1 In the hour, the viscosity is adjusted and the mixture is evenly stirred to obtain a granulated base paint.

(c) After 40.0 parts of the protective gum solution is first put into the stirred tank, 50.0 parts of the above-mentioned base paints are added in proportion, stabilized for 1-2 hours, and granulated to obtain rock color particles.

(d) After 20.0 parts of distilled water is first put into the stirred tank, 0.2 parts of NXZ defoamer, 0.4 parts of polyurethane thickener, 0.2 parts of LXE fungicide and 1.5 parts of propylene glycol antifreeze are added in sequence, and stirred uniformly; 25.0 parts are added in proportion. SLX-1048-3 emulsion, stirring for 0.5-1 hours until uniform dispersion; adding 2.0 parts of film-forming auxiliary, stirring for 0.5-1 hour, stirring evenly; adding 50.0 parts of rock color particles, stirring for 0.5-1 hours, stirring evenly, That is, a top coat is obtained.

(3) Preparation of overcoat varnish

After 40.0 parts of distilled water was first put into the stirred tank, 0.2 part of NXZ defoaming agent, 0.4 part of polyurethane thickener, 0.2 part of LXE bactericide, 0.2 part of pH adjuster and 1.0 part of propylene glycol antifreeze were added and stirred uniformly. Add 55.0 parts of TD-661 silicone-acrylic emulsion, stir for 0.5-1 hour until uniform dispersion; add 3.0 parts of film-forming auxiliary, stir for 0.5-1 hour, stir evenly and evenly, then get Cover varnish.

Example 2

A water-based reflective heat-insulating imitation stone rock color coating system for building and a preparation method thereof, the group distribution ratio and preparation method of the coating are as follows:

(1) primer

Component name	Parts by weight
Acronal JC 7043 styrene-acrylic emulsion	30.0
Distilled water	10.0
Polyurethane thickener	0.2
NXZ defoamer	0.1
Dodecyl alcohol	3.0
PH regulator	0.1
Propylene glycol antifreeze	0.2
LXE fungicide	0.1

(2) Medium coating

Component name	Parts by weight
AP 5085 Elastic Emulsion	30.0
Distilled water	10.0
Polyurethane thickener	0.5
NXZ defoamer	0.2
Dodecyl alcohol	1.0
PH regulator	0.1
antifreeze	0.2
Fungicide	0.1
5040 dispersant	2.0
Titanium dioxide	10.0

Ceramic powder	10.0
Hollow glass beads	12.0

(3) Topcoat

(4) Cover varnish

Component name	Parts by weight
TD-661 Silicone Acrylic Emulsion	50.0
Distilled water	40.0
Polyurethane thickener	0.4
NXZ defoamer	0.2
Dodecyl alcohol	3.0
PH regulator	0.2
Propylene glycol antifreeze	1.0
LXE fungicide	0.2

The coating preparation process:

(1) Preparation of primer:

After putting 30.0 parts of styrene-acrylic emulsion into the stirred tank, add 10.0 parts of distilled water, stir evenly, add 0.1 part of NXZ defoamer, 0.2 part of polyurethane thickener, 3.0 parts of dodecyl alcohol, 0.1 part of LXE fungicide, 0.1 A portion of the pH adjuster and 0.2 parts of the propylene glycol antifreeze are stirred to obtain a primer.

(2) Preparation of medium coating:

After putting 10.0 parts of distilled water into the stirred tank, add 2.0 parts of 5040 dispersant, add 0.2 parts of NXZ defoamer, 0.1 part of LXE bactericide, 0.1 part of pH adjuster and 0.2 part of propylene glycol antifreeze, stir evenly; add 10.0 parts in order Titanium dioxide pigment and 12.0 parts of ceramic micropowder, stirred at 2000-3000RPM for 3-4 hours until uniform dispersion, fineness ≤ 30μm; add 30.0 parts of AP5085 acrylate elastic emulsion to the above slurry, evenly disperse and add 1.0 The dodecyl alcohol was added, and 15.0 parts of glass hollow microbeads were sequentially added, and the viscosity was adjusted with 0.5 part of a polyurethane thickener; after passing the test, the package was quantitatively prepared.

(3) Preparation of top coat:

(a) After 100.0 parts of distilled water is first put into the stirred tank, 7.0 parts of the protective rubber powder is added, and the mixture is stirred and dissolved to obtain a protective gum solution;

(b) After putting 40.0 distilled water into the stirred tank, add 0.3 parts of NXZ defoamer, 0.2 part of polyurethane thickener, 0.2 part of LXE bactericide, 0.2 part of pH adjuster and 1.0 part of propylene glycol antifreeze. Stir well: proportional Add 5 parts of titanium dioxide and stir evenly. Add the above slurry to the sander and grind it to a fineness of 20-25 microns: add 35.0 parts of SLX-1048-3 emulsion in proportion and stir for 0.5-1 hour until dispersed. Uniform; proportionally add 15.0 parts of protective rubber solution, stir for 0.5-1 hours: add 3.0 parts of film-forming auxiliary agent in proportion, stir for 0.5-1 hour, stir evenly; add reflective heat-insulating pigment filler in proportion, stir for 0.5-1 hour The viscosity is adjusted and the mixture is evenly stirred to obtain a granulated base paint.

(c) After 40.0 parts of the protective gum solution is first put into the stirred tank, 50.0 parts of the above-mentioned base paints are added in proportion, stabilized for 1-2 hours, and granulated to obtain rock color particles.

(d) After putting 20.0 parts of distilled water into the stirred tank, add 0.2 parts of NXZ defoamer, 0.4 parts of polyurethane thickener, 0.2 parts of LXE fungicide and 1.5 parts of propylene glycol antifreeze, and mix well, and add 25.0 parts in proportion. SLX-1048-3 emulsion, stirring for 0.5-1 hours until uniform dispersion; adding 2.0 parts of film-forming auxiliary, stirring for 0.5-1 hour, stirring evenly; adding 50.0 parts of rock color particles, stirring for 0.5-1 hours, stirring evenly, That is, a top coat is obtained.

(3) Preparation of overcoat varnish

After 40.0 parts of distilled water was first put into the stirred tank, 0.2 part of NXZ defoaming agent, 0.4 part of polyurethane thickener, 0.2 part of LXE bactericide, 0.2 part of pH adjuster and 1.0 part of propylene glycol antifreeze were added and stirred uniformly. Add 50.0 parts of TD-661 silicone-acrylic emulsion and stir for 0.5-1 hour until dispersed Uniform; add 3.0 parts of film-forming auxiliary, stir for 0.5-1 hour, stir evenly and evenly to obtain the cover varnish.

Example 3

A water-based reflective heat-insulating imitation stone rock color coating system for building and a preparation method thereof, the group distribution ratio and preparation method of the coating are as follows:

(1) primer

Component name	Parts by weight
Acronal JC 7043 styrene-acrylic emulsion	45.0
Distilled water	10.0
Polyurethane thickener	0.2
NXZ defoamer	0.1
Dodecyl alcohol	3.0
PH regulator	0.1
Propylene glycol antifreeze	0.2
LXE fungicide	0.1

(2) Medium coating

Component name	Parts by weight
AP 5085 Elastic Emulsion	40.0
Distilled water	10.0
Polyurethane thickener	0.5
NXZ defoamer	0.2
Dodecyl alcohol	1.0
PH regulator	0.1
antifreeze	0.2
Fungicide	0.1
5040 dispersant	2.0
Titanium dioxide	10.0

Ceramic powder	9.0
Hollow glass beads	15.0

(3) Topcoat

(4) Cover varnish

Component name	Parts by weight
TD-661 Silicone Acrylic Emulsion	60.0
Distilled water	40.0
Polyurethane thickener	0.4
NXZ defoamer	0.2
Dodecyl alcohol	3.0
PH regulator	0.2
Propylene glycol antifreeze	1.0
LXE fungicide	0.2

The coating preparation process:

(1) Preparation of primer:

After putting 45.0 parts of styrene-acrylic emulsion into the stirred tank, add 10.0 parts of distilled water, stir evenly, add 0.1 part of NXZ defoamer, 0.2 part of polyurethane thickener, 3.0 parts of dodecyl alcohol, 0.1 part of LXE fungicide, 0.1 A portion of the pH adjuster and 0.2 parts of the propylene glycol antifreeze are stirred to obtain a primer.

(2) Preparation of medium coating:

After putting 10.0 parts of distilled water into the stirred tank, add 2.0 parts of 5040 dispersant, add 0.2 parts of NXZ defoamer, 0.1 part of LXE bactericide, 0.1 part of pH adjuster and 0.2 part of propylene glycol antifreeze, stir evenly; add 10.0 parts in order Titanium dioxide pigment and 9.0 parts of ceramic micropowder are stirred at 2000-3000RPM for 3-4 hours until uniform dispersion, fineness ≤30μm; 40.0 parts of AP5085 acrylate elastic emulsion is added to the above slurry, and evenly dispersed, 1.0 is added. The dodecyl alcohol was added, and 15.0 parts of glass hollow microbeads were sequentially added, and the viscosity was adjusted with 0.5 part of a polyurethane thickener; after passing the test, the package was quantitatively prepared.

(3) Preparation of top coat:

(a) After putting 105.0 parts of distilled water into the stirred tank, adding 7.0 parts of the protective rubber powder, stirring and dissolving uniformly, thereby obtaining a protective gum solution;

(b) After putting 40.0 distilled water into the stirred tank, add 0.3 parts of NXZ defoamer, 0.2 part of polyurethane thickener, 0.2 part of LXE bactericide, 0.2 part of pH adjuster and 1.0 part of propylene glycol antifreeze, and stir evenly; Add 5 parts of titanium dioxide and stir evenly, add the above slurry to the sand mill, grind it to a fineness of 20-25 microns; add 40.0 parts of SLX-1048-3 emulsion in proportion, stir for 0.5-1 hour, until dispersed Uniformly; 15.0 parts of protective rubber solution is added in proportion, stirred for 0.5-1 hour; 3.0 parts of film-forming auxiliary agent is added in proportion, stirred for 0.5-1 hour, and stirred uniformly; reflective heat-insulating pigment filler is added in proportion, and stirred for 0.5-1 hour The viscosity is adjusted and the mixture is evenly stirred to obtain a granulated base paint.

(c) After 40.0 parts of the protective gum solution is first put into the stirred tank, 50.0 parts of the above-mentioned base paints are added in proportion, stabilized for 1-2 hours, and granulated to obtain rock color particles.

(d) After 20.0 parts of distilled water is first put into the stirred tank, 0.2 parts of NXZ defoamer, 0.4 parts of polyurethane thickener, 0.2 parts of LXE fungicide and 1.5 parts of propylene glycol antifreeze are added in sequence, and stirred uniformly; 25.0 parts are added in proportion. SLX-1048-3 emulsion, stirring for 0.5-1 hours until uniform dispersion; adding 2.0 parts of film-forming auxiliary, stirring for 0.5-1 hour, stirring evenly; adding 50.0 parts of rock color particles, stirring for 0.5-1 hours, stirring evenly, That is, a top coat is obtained.

(3) Preparation of overcoat varnish

After 40.0 parts of distilled water was first put into the stirred tank, 0.2 part of NXZ defoaming agent, 0.4 part of polyurethane thickener, 0.2 part of LXE bactericide, 0.2 part of pH adjuster and 1.0 part of propylene glycol antifreeze were added and stirred uniformly. Add 60.0 parts of TD-661 silicone-acrylic emulsion and stir for 0.5-1 hour until dispersed Uniform; add 3.0 parts of film-forming auxiliary, stir for 0.5-1 hour, stir evenly and evenly to obtain the cover varnish.

All of the components of the compositions in the above examples are commercially available.

The above-described embodiments are only intended to be illustrative of the invention, and are not to be construed as limiting the scope of the invention.

Claims (5)

1. A water-based reflective and heat-insulating imitation stone rock color coating system for building, comprising a base paint, an intermediate paint, a top coat and a cover varnish, characterized in that:

   The primer is a colorless and transparent sealing primer whose components and parts by weight are:

   

   The intermediate coating is a reflective, thermally insulating aqueous intermediate coating whose composition and parts by weight are:

   

   The top coat is a water-in-water imitation stone rock paint with reflection insulation. The composition and weight fraction are:

   

   

   The composition and weight of the finish varnish are:

   
2. An architectural water-based reflective and thermal insulation rock stone color coating system according to claim 1, wherein:

   The composition and component parts of the top coat are:

   Granulation base paint: 50.0-60.0

   Protective glue solution: 40.0-50.0;

   The components and parts by weight of the granulation base paint and the protective gum solution are:

   Protective glue solution:

   Water: 85.0-93.0

   Protective adhesive: 7.0-15.0

   Granulation base paint:

   

   
3. An architectural water-based reflective and thermal insulation rock stone color coating system according to claim 1, wherein:

   The emulsion described in the primer is selected from the group consisting of a styrene-acrylic emulsion, a pure acrylic emulsion, or a mixture of two or more;

   The water described in the primer is distilled water or deionized water;

   The auxiliary agent described in the primer is one or a mixture of two or more of a mineral oil defoaming agent, a silicone oil defoaming agent, a polyurethane thickener or an alkali swellable thickener;

   The film forming aid described in the primer is a high boiling point solvent;

   The emulsion described in the intermediate coating is selected from one or a mixture of two or more of a styrene-acrylic emulsion, a pure acrylic emulsion, a silicone-acrylic emulsion, and the like;

   The coloring pigment in the intermediate coating is selected from titanium oxide, iron oxide, ultramarine blue, organic pigment, etc.; or a mixture of two or more; the color pigment particle size is controlled at 400-1500 nm;

   The heat insulating pigment filler in the intermediate coating is selected from the group consisting of oxides having a reflective function;

   The water in the intermediate coating is distilled water or deionized water;

   The auxiliary agent described in the intermediate coating is one or a mixture of two or more of a mineral oil defoaming agent, a silicone oil defoaming agent, a polyurethane thickener or an alkali swellable thickener;

   The film forming aid described in the intermediate coating is a high boiling point solvent;

   The emulsion described in the top coat is selected from one or a mixture of two or more of a styrene-acrylic emulsion, a pure acrylic emulsion, a silicone-acrylic emulsion, and the like;

   The coloring pigment in the top coating is one or two selected from the group consisting of titanium dioxide, iron oxide, ultramarine blue, organic pigment, and the like. a mixture of the above; the color pigment has a particle size controlled at 400-1500 nm;

   The heat insulating pigment filler in the top coating is selected from the group consisting of oxides having a reflective function;

   The water described in the topcoat is distilled water or deionized water;

   The auxiliary agent described in the top coat is one or a mixture of two or more of a mineral oil antifoaming agent, a silicone oil defoaming agent, a polyurethane thickener or an alkali swellable thickener;

   The film forming aid is a high boiling point solvent;

   The emulsion described in the finish varnish is selected from the group consisting of pure acrylic emulsion, silicone acrylic emulsion or two-component polyurethane, or a mixture of two or more;

   The water described in the finish varnish is distilled water or deionized water;

   The auxiliary agent described in the overcoat varnish is one or a mixture of two or more of a mineral oil defoaming agent, a silicone oil defoaming agent, a polyurethane thickener or an alkali swellable thickener;

   The film forming aid is a high boiling point solvent.
4. An architectural water-based reflective and thermal insulation rock stone color coating system according to claim 3, characterized in that;

   The film forming aid is one or a mixture of two or more of ethylene glycol butyl ether, DBE, and dodecyl alcohol;

   The heat insulating pigment filler is one or a mixture of two or more of nano titanium dioxide, zirconium silicate, inorganic ceramic pigment, zirconia, talc, ceramic powder, aluminum silicate, and potassium titanate.
5. A method for preparing a water-based reflective heat insulation rock stone color coating system for building, characterized in that the method comprises the following steps;

   Step one, preparation of primer

   (a) After the emulsion is first put into the stirred tank, distilled water is added and stirred uniformly;

   (b) adding the auxiliary agent in proportion and stirring evenly;

   (c) adding a film-forming auxiliary agent in proportion, stirring for 0.5-1 hour, until the dispersion is uniform, to obtain a primer;

   Step 2, preparation of intermediate coating

   (a) After the distilled water is first put into the stirred tank, various additives are added in sequence, and the mixture is uniformly stirred;

   (b) proportionally adding the pigment and the reflective heat insulating filler, and stirring uniformly, adding the above slurry to a sand mill for grinding to a fineness of 20-25 μm;

   (c) adding the emulsion in proportion and stirring for 0.5-1 hour until the dispersion is uniform;

   (d) adding a film-forming auxiliary agent in proportion, stirring for 0.5-1 hour, and stirring uniformly;

   (e) Adjust the viscosity and stir evenly to obtain an intermediate coating.

   Step three, preparation of the surface coating

   (a) After the distilled water is first introduced into the stirred tank, the protective rubber powder is added, and the mixture is stirred and dissolved to obtain a protective gum solution;

   (b) After the distilled water is put into the stirred tank, the additives are added in sequence, and the mixture is evenly mixed; the pigment and the reflective heat insulating filler are added in proportion, and the mixture is uniformly stirred, and the slurry is added to the sand mill for grinding to fineness. Up to 20-25 microns; add the emulsion in proportion, stir for 0.5-1 hours until the dispersion is uniform; add the protective rubber solution in proportion, stir for 0.5-1 hour; add the film forming aid in proportion, stir for 0.5-1 hour, adjust the viscosity , stirring evenly, that is, obtaining a granulation base paint;

   (c) After the protective gum solution is first put into the stirred tank, the above-mentioned base paints are added in proportion, stabilized for 1-2 hours, and granulated to obtain rock colored particles.

   (d) After the distilled water is first put into the stirred tank, various additives are added in sequence, and the mixture is uniformly stirred; the emulsion is added in proportion, stirred for 0.5-1 hour until the dispersion is uniform; the film-forming auxiliary agent is added in proportion, and stirred for 0.5-1 hour. Stir well; add the rock particles according to the proportion, stir for 0.5-1 hour, stir evenly to obtain the top coating;

   Step 4, preparation of the cover varnish

   (a) After the distilled water is first put into the stirred tank, various additives are added in sequence, and the mixture is uniformly stirred;

   (b) adding the emulsion in proportion and stirring for 0.5-1 hour until the dispersion is uniform;

   (c) Adding a film-forming auxiliary agent in proportion, stirring for 0.5-1 hour, and stirring uniformly to obtain a finish varnish.