CN113817372A - Water-based reflective heat-insulation marble-imitated coating and preparation method thereof - Google Patents

Abstract

The water-based reflective heat-insulation marble-imitated coating is formed by mixing a colored-point base paint, a continuous phase and a protective glue solution, wherein the ratio of the colored-point base paint to the continuous phase to the protective glue solution is 4-8:1-3:1-3, and the colored-point base paint comprises the following components in parts by weight: 25-35 parts of water, 0.2-0.4 part of preservative, 0.6-1 part of hydroxyethyl cellulose, 0.1-0.3 part of dispersant, 0.05-0.1 part of wetting agent, 0.2-0.3 part of defoamer, 0.5-8 parts of protective rubber powder, 1-5 parts of pigment, 5-10 parts of filler, 0.1-0.2 part of multifunctional additive, 0.7-1 part of antifreeze, 0.5-1 part of film-forming additive, 0.2-0.4 part of mildew inhibitor, 10-20 parts of emulsion and 30-45 parts of quartz sand; the continuous phase comprises the following components in parts by weight: 30-50 parts of water, 0.2-0.4 part of preservative, 0.1-0.3 part of defoaming agent, 0.1-0.2 part of multifunctional additive, 0.5-1 part of film-forming additive, 0.7-1 part of anti-freezing agent, 50-70 parts of emulsion and 0.5-1.5 parts of thickening agent; the protective glue solution comprises the following components in parts by weight: 80-95 parts of water, 3-10 parts of protective rubber powder, 0.5-8 parts of separant and 0.1-0.2 part of preservative.

Description

Water-based reflective heat-insulation marble-imitated coating and preparation method thereof

Technical Field

The invention relates to an architectural coating, in particular to a water-based reflective heat-insulation marble-imitated coating and a preparation method thereof.

Background

Along with the increasing living standard of people, the requirements on the building outer wall decoration material are higher and higher, and the building outer wall decoration material has good decoration effect and heat preservation effect. The traditional method is to manufacture a heat insulation layer and manufacture an outer wall decoration material on the heat insulation layer. The traditional method is not only complicated in construction process, but also long in construction period; in the aspect of materials, the heat insulation material is very expensive in cost, and most of the traditional heat insulation materials mainly use plates, so that the potential fire hazard exists, the water absorption is easy, the occupied space is large, the falling is easy, and the potential safety hazard is large.

The natural marble has good decorative effect and is popular with the masses, but the natural marble as a non-renewable resource can cause water and soil loss due to excessive mining, destroy ecological balance and be expensive, and secondly, the marble is easy to fall off due to large self weight and has higher potential safety hazard.

The stone-like paint includes water-retaining colorful paint, sand-in-water colorful paint, stone-like paint, etc. The existing stone-like paint such as real stone paint has the problems of high construction difficulty, high requirements on workers, weather, wall surfaces and the like, and easiness in occurrence of problems of blooming, bottom exposure and the like; the conventional marble-imitated coating has the problems of poor water-resistant effect, unstable storage, poor weather resistance and the like.

Disclosure of Invention

The invention aims to solve the technical problem of providing a water-based reflective heat-insulation marble-imitated coating which integrates heat insulation and decoration, is green and environment-friendly, has high sunlight reflectivity, low heat conductivity coefficient, good water resistance, acid and alkali resistance, weather resistance and scrubbing resistance, good stone-imitated effect, rich colors, low construction difficulty, low cost and good stability.

In order to solve the technical problem, the invention adopts the following technical scheme on one hand:

the water-based reflective heat-insulation marble-imitated coating is formed by mixing a colored-dot base paint, a continuous phase and a protective glue solution, wherein the ratio of the colored-dot base paint to the continuous phase to the protective glue solution is 4-8:1-3: 1-3.

Further, the color point base paint comprises the following components in parts by weight: 25-35 parts of water, 0.2-0.4 part of preservative, 0.6-1 part of hydroxyethyl cellulose, 0.1-0.3 part of dispersant, 0.05-0.1 part of wetting agent, 0.2-0.3 part of defoamer, 0.5-8 parts of protective rubber powder, 1-5 parts of pigment, 5-10 parts of filler, 0.1-0.2 part of multifunctional additive, 0.7-1 part of antifreeze, 0.5-1 part of film-forming additive, 0.2-0.4 part of mildew inhibitor, 10-20 parts of emulsion and 30-45 parts of quartz sand.

Further, the continuous phase comprises the following components in parts by weight: 30-50 parts of water, 0.2-0.4 part of preservative, 0.1-0.3 part of defoaming agent, 0.1-0.2 part of multifunctional additive, 0.5-1 part of film-forming additive, 0.7-1 part of antifreezing agent, 50-70 parts of emulsion and 0.5-1.5 parts of thickening agent.

Further, the protective glue solution comprises the following components in parts by weight: 80-95 parts of water, 3-10 parts of protective rubber powder, 0.5-8 parts of separant and 0.1-0.2 part of preservative.

Further, the hydroxyethyl cellulose is a mixture of hydroxyethyl cellulose with the molecular weight of 3 ten thousand and hydroxyethyl cellulose with the molecular weight of 10 ten thousand according to the proportion of 5-7: 2-3; the dispersant is one or a combination of more of an acrylic acid ammonium salt dispersant, a carboxylic acid sodium salt dispersant or a phosphate dispersant; the pigment is titanium dioxide, and the particle size of the titanium dioxide is 400-800 nm; the filler is one or a combination of more of graphene and hollow glass beads, the average particle size of the hollow glass beads is 10-90 mu m, and the thermal conductivity is 0.05-0.06[ W/(m & K) ]; the mildew preventive is one or a combination of 2-octyl-3 (2H) -isothiazolone or 2-methyl-3 (2H) isothiazolone.

Further, the thickening agent is one or a combination of several of hydrophobic modified sodium polyacrylate, hydrophobic modified polyacrylamide or nonionic polyurethane compounds.

Further, the defoaming agent is polydimethylsiloxane solution; the multifunctional additive is one or a combination of several of dimethylethanolamine, ethanolamine, ammonia water or 2-amino-2-methyl-1-propanol; the antifreezing agent is ethylene glycol or propylene glycol; the film-forming auxiliary agent is one or a combination of more of ethylene glycol monobutyl ether, alcohol ester dodeca and dipropylene glycol monobutyl ether; the emulsion is organic silicon modified acrylic emulsion, the solid content of the organic silicon modified acrylic emulsion is 46-48%, and the particle size is 600-800 nm.

Further, the protective rubber powder is a mixture of lithium magnesium silicate, sodium hexametaphosphate and magnesium aluminum silicate according to the proportion of 90-96:3-5: 3-5;

further, the preservative is one or a combination of magnesium dinitrate, 5-chloro-2-methyl-3 (2H) isothiazolone or 2-methyl-3 (2H) isothiazolone copper (II) nitrate.

In order to solve the technical problem, the invention adopts the following technical scheme on one hand:

a water-based reflective heat-insulating marble-imitated coating comprises the following steps;

the method comprises the following steps: preparing a protective glue solution; weighing 80-95 parts of water, 3-10 parts of protective rubber powder, 0.5-1 part of separant and 0.1-0.2 part of preservative in parts by weight, adding the water into a batching barrel, adding the protective rubber powder, the separant and the preservative while stirring, uniformly stirring, and obtaining protective rubber solution when the liquid is transparent and granular;

step two: preparing a color point base paint; weighing 25-35 parts of water, 0.2-0.4 part of preservative, 0.6-1 part of hydroxyethyl cellulose, 0.1-0.3 part of dispersant, 0.05-0.1 part of wetting agent, 0.2-0.3 part of defoamer, 0.5-0.8 part of protective rubber powder, 1-5 parts of pigment, 5-10 parts of filler, 0.1-0.2 part of multifunctional additive, 0.7-1 part of antifreeze, 0.5-1 part of film-forming additive, 0.2-0.4 part of mildew inhibitor, 10-20 parts of emulsion and 30-45 parts of 90-mesh quartz sand in parts by weight;

firstly, adding water into a dispersion cylinder, adding a dispersing agent, 1/2 defoaming agent, 1/2 preservative and wetting agent while stirring, then adding hydroxyethyl cellulose, maintaining the rotating speed of 1000-2000 r/min, dispersing to a transparent state, then adding protective rubber powder, pigment and multifunctional auxiliary agent, maintaining the rotating speed of 1000-2000 r/min, stirring for about 30 min, and waiting for uniform stirring; reducing the rotating speed to 600-800 rpm, adding an antifreezing agent, a film forming aid and a mildew preventive in sequence, and dispersing for 5-10 minutes; then adding the emulsion, stirring uniformly, transferring the part in the dispersion cylinder to a horizontal stirrer, adding quartz sand powder and hollow glass beads, stirring uniformly, and adding the rest defoaming agent and preservative to obtain the color point base paint;

step three: preparing color dots; separately mixing colors of the color point base paint obtained in the step (2) according to the color proportion requirement of the color plate, and obtaining color points;

step four: preparing a continuous phase; weighing 30-50 parts of water, 0.2-0.4 part of preservative, 0.1-0.3 part of defoaming agent, 0.1-0.2 part of multifunctional additive, 0.5-1 part of film-forming additive, 0.7-1 part of antifreezing agent, 50-70 parts of emulsion and 0.5-1.5 parts of thickening agent in parts by weight;

adding water into a dispersion cylinder, adding a preservative, a defoaming agent, a multifunctional additive, a film-forming additive and an anti-freezing agent while stirring, uniformly stirring at the rotation speed of 600-;

step five: preparing a finished product; taking a batching barrel, and then adding the protective glue solution obtained in the step one into a batching pipe; adding the base paint obtained in the step three into the mixing material, weighing according to a proportion, and sequentially adding the base paint in a separated manner from a large amount to a small amount by weight, specifically, pre-cutting the mixing base paint in advance, and then cutting the mixing base paint by using a granulator to obtain color points;

step six: and (4) adding the continuous phase obtained in the step four into the step five, and uniformly stirring to obtain a finished product of the water-based reflective heat-insulation marble-imitated coating.

Compared with the prior art, the invention has the following beneficial effects:

the invention utilizes the principle that the lithium magnesium silicate and the aluminum magnesium silicate solution have negative charges and like charges repel each other, ensures that the color dots are independent from each other and are not fused with each other, and simultaneously the lithium magnesium silicate also has thixotropic thickening property and anti-settling effect, and ensures the suspension stability of the color dots; the nano titanium dioxide enables the coating to have high sunlight reflectivity, the hollow glass microspheres are light, hollow and heat-insulating glass microspheres with extremely low heat conductivity coefficient, so that the thermal resistance of the coating is greatly increased, the graphene enables the coating to have good hardness, the mechanical property of the coating is improved, and the water resistance, acid and alkali resistance and weather resistance of the coating are enhanced; meanwhile, the organic silicon modified acrylic emulsion is used as a cross-linking agent, so that the coating has good weather resistance.

Detailed Description

To make the technical problems, technical solutions and advantages to be solved by the present invention clearer. In the following description, characteristic details such as specific configurations and components are provided only to help the embodiments of the present invention be fully understood. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

It should be noted that the hydroxyethyl cellulose used in the embodiment of the present invention is B30K produced by samsung in korea and HHBR250 produced by clarien chemical (china), the dispersant is polyphosphate, SN5027 produced by clarien chemical (china), the wetting agent is alkylphenol polyoxyethylene ether, BL9 produced by clarien chemical (china), the defoaming agent is ether, NXZ produced by aksu nobel, the protective glue powder is a mixture of lithium magnesium silicate and sodium hexametaphosphate, the type is M800 in engbo chemical, the titanium dioxide is nano titanium dioxide, the hollow glass bead is S15 produced by us 3M, the multifunctional additive is a mixture of 2-amino-2-methyl-1-propanol, the type is AMP95 in hai-hai chemical, the antifreeze agent is ethylene glycol, the film-forming additive is a mixture of alcohol ester twelve, the type is C-12 in iseman, the mildew preventive is chlorophenol, the model is CC-2 of Ranman, Guangdong, the emulsion is water-based silicone-acrylate emulsion,

the raw materials and the auxiliary agents used in the examples of the present invention are not specifically described. Are all obtained by conventional commercial means.

Example one

The water-based reflective heat-insulating marble-imitated coating is prepared by mixing a colored-dot base paint, a continuous phase and a protective glue solution, wherein the ratio of the colored-dot base paint to the continuous phase to the protective glue solution is 4-8:1-3:1-3, wherein,

the continuous phase comprises the following components in parts by weight: 50 parts of water, 0.4 part of preservative, 0.1 part of defoaming agent, 0.2 part of multifunctional additive, 1 part of film-forming additive, 1 part of anti-freezing agent, 50 parts of emulsion and 1 part of thickening agent;

the protective glue solution comprises the following components in parts by weight: 92 parts of water, 8 parts of protective rubber powder, 8 parts of separant and 0.1 part of preservative;

the color point base paint comprises the following components in parts by weight; 32 parts of water, 0.3 part of preservative, 0.8 part of hydroxyethyl cellulose, 0.2 part of dispersant, 0.05 part of wetting agent, 0.2 part of defoamer, 6 parts of protective rubber powder, 5 parts of nano titanium dioxide, 4 parts of hollow glass microsphere, 6 parts of graphene, 0.1 part of multifunctional auxiliary agent, 0.7 part of anti-freezing agent, 0.8 part of film-forming auxiliary agent, 0.2 part of mildew preventive, 15 parts of emulsion and 35 parts of quartz sand; the preparation method comprises the following steps; comprises the following steps;

the method comprises the following steps: preparing a protective glue solution; adding water 92 into a batching barrel, adding the protective rubber powder 8, the separant 8 and the preservative 0.1 while stirring, uniformly stirring, and obtaining protective rubber liquid when the liquid is transparent and has no particles after stirring;

step two: preparing a color point base paint; firstly, adding water 32 into a dispersion cylinder, adding 0.2 dispersant, 0.1 defoaming agent, 0.15 preservative and 0.05 wetting agent while stirring, then adding 0.8 hydroxyethyl cellulose, maintaining the rotating speed of 1000-2000 r/min, dispersing to a transparent state, then adding 0.1 protective rubber powder 6, pigment 5 and multifunctional auxiliary agent, maintaining the rotating speed of 1000-2000 r/min, stirring for about 30 minutes, and waiting for uniform stirring; reducing the rotating speed to 600-800 rpm, sequentially adding 0.7 percent of antifreezing agent, 0.8 percent of film-forming assistant and 0.2 percent of mildew preventive, and dispersing for 5-10 minutes; then adding the emulsion 15, stirring uniformly, transferring the part in the dispersion cylinder to a horizontal stirrer, adding the quartz sand powder 35, the hollow glass beads 4 and the graphene 6, stirring uniformly, and adding the rest defoaming agent and preservative to obtain the color point base paint;

step three: preparing color dots; separately mixing colors of the base paint of the color points obtained in the step two according to the color proportion requirement of the color plate, and obtaining the color points;

step four: preparing a continuous phase; adding 50 parts of water into a dispersion cylinder, adding 0.4 part of preservative, 01 parts of defoaming agent, 0.2 part of multifunctional additive, 1 part of film-forming additive and 1 part of anti-freezing agent while stirring, stirring uniformly at the rotating speed of 600-;

step five: preparing a finished product; taking a batching barrel, and then adding the protective glue solution obtained in the step one into a batching pipe; adding the base paint obtained in the step three into the mixing material, weighing according to a proportion, and sequentially adding the base paint in a separated manner from a large amount to a small amount by weight, specifically, pre-cutting the mixing base paint in advance, and then cutting the mixing base paint by using a granulator to obtain color points;

step six: and (4) adding the continuous phase obtained in the step four into the step five, and uniformly stirring to obtain a finished product of the water-based reflective heat-insulation marble-imitated coating.

Example 2

The water-based reflective heat-insulating marble-imitated coating is formed by mixing a color point base paint, a continuous phase and a protective glue solution, wherein the continuous phase comprises the following components in parts by weight: water 45, preservative 0.4, defoaming agent 0.1, multifunctional additive 0.2, film-forming additive 1, antifreezing agent 1, emulsion 55 and thickening agent 1;

protecting glue solution: water 92, protective rubber powder 8 and separant 8, and preservative 0.1;

base paint: 28 parts of water, 0.3 part of preservative, 0.8 part of hydroxyethyl cellulose, 0.2 part of dispersant, 0.2 part of defoamer, 7 parts of protective rubber powder, 5 parts of nano titanium dioxide, 5 parts of hollow glass beads, 0.05 part of wetting agent, 0.1 part of multifunctional additive, 0.8 part of film-forming additive, 0.2 part of mildew inhibitor, 0.7 part of anti-freezing agent, 18 parts of emulsion and 40 parts of quartz sand; the preparation method comprises the following steps; comprises the following steps;

the method comprises the following steps: preparing a protective glue solution; adding 92 parts by weight of water into a batching barrel, adding the protective rubber powder 8, the isolating agent 8 and the preservative 0.1 while stirring, and uniformly stirring until the liquid is transparent and granular-free when stirred to obtain a protective rubber liquid;

step two: preparing a color point base paint; firstly, adding water 28 into a dispersion cylinder, adding 0.2 dispersant, 0.05 defoaming agent, 0.15 preservative and 0.05 wetting agent while stirring, then adding 0.8 hydroxyethyl cellulose, maintaining the rotating speed of 1000-2000 r/min, dispersing to a transparent state, then adding 0.1 protective rubber powder 7, pigment 5 and multifunctional auxiliary agent, maintaining the rotating speed of 1000-2000 r/min, stirring for about 30 minutes, and waiting for uniform stirring; reducing the rotating speed to 600-800 rpm, sequentially adding 0.7 percent of antifreezing agent, 0.8 percent of film-forming assistant and 0.2 percent of mildew preventive, and dispersing for 5-10 minutes; then adding the emulsion 18, stirring uniformly, transferring part of the dispersion cylinder into a horizontal stirrer, adding the quartz sand powder 40 and the hollow glass beads 5, stirring uniformly, and adding the rest defoaming agent and preservative to obtain the color point base paint;

step three: preparing color dots; separately mixing colors of the base paint of the color points obtained in the step two according to the color proportion requirement of the color plate, and obtaining the color points;

step four: preparing a continuous phase; adding water 45 into a dispersion cylinder, adding 0.4 percent of preservative, 01 percent of defoaming agent, 0.2 percent of multifunctional additive, 1 percent of film-forming additive and 1 percent of antifreezing agent while stirring, stirring uniformly at the rotating speed of 600 plus materials of 800 revolutions per minute, adding 55 percent of emulsion, stirring uniformly, adding 1 percent of thickening agent, and obtaining a continuous phase after the viscosity is stable;

step five: preparing a finished product; taking a batching barrel, and then adding the protective glue solution obtained in the step one into a batching pipe; adding the base paint obtained in the step three into the mixing material, weighing according to a proportion, and sequentially adding the base paint in a separated manner from a large amount to a small amount by weight, specifically, pre-cutting the mixing base paint in advance, and then cutting the mixing base paint by using a granulator to obtain color points;

step six: and (4) adding the continuous phase obtained in the step four into the step five, and uniformly stirring to obtain a finished product of the water-based reflective heat-insulation marble-imitated coating.

Example 3

An aqueous reflective heat-insulating marble-imitated coating, which comprises the following components in parts by weight,

continuous phase: 40 parts of water, 0.4 part of preservative, 0.1 part of defoaming agent, 0.2 part of multifunctional additive, 1 part of film-forming additive, 1 part of anti-freezing agent, 60 parts of emulsion and 1 part of thickening agent;

protecting glue solution: 92 parts of water, 8 parts of protective rubber powder, 8 parts of separant and 0.1 part of preservative;

color point base paint: 26 parts of water, 0.3 part of preservative, 0.9 part of hydroxyethyl cellulose, 0.2 part of dispersant, 0.2 part of defoamer, 0.08 part of wetting agent, 6 parts of protective rubber powder, 5 parts of nano titanium dioxide, 6 parts of hollow glass microsphere, 4 parts of graphene, 0.1 part of multifunctional additive, 0.8 part of anti-freezing agent, 0.8 part of film-forming additive, 0.2 part of mildew preventive, 20 parts of silicone-acrylic emulsion and 45 parts of quartz sand; the preparation method comprises the following steps; comprises the following steps;

the method comprises the following steps: preparing a protective glue solution; adding 92 parts by weight of water into a batching barrel, adding the protective rubber powder 8, the isolating agent 8 and the preservative 0.1 while stirring, and uniformly stirring until the liquid is transparent and granular-free when stirred to obtain a protective rubber liquid;

step two: preparing a color point base paint; firstly, adding water 26 into a dispersion cylinder, adding 0.2 dispersant, 0.1 defoaming agent, 0.15 preservative and 0.08 wetting agent while stirring, then adding 0.9 hydroxyethyl cellulose, maintaining the rotating speed of 1000-2000 r/min, dispersing to a transparent state, then adding 0.1 protective rubber powder 6, pigment 5 and multifunctional auxiliary agent, maintaining the rotating speed of 1000-2000 r/min, stirring for about 30 minutes, and waiting for uniform stirring; reducing the rotating speed to 600-800 rpm, sequentially adding 0.7 percent of antifreezing agent, 0.8 percent of film-forming assistant and 0.2 percent of mildew preventive, and dispersing for 5-10 minutes; then adding the emulsion 18, stirring uniformly, transferring the part in the dispersion tank to a horizontal stirrer, adding quartz sand 45, hollow glass beads 6 and graphene 4, stirring uniformly, and adding the rest defoaming agent and preservative to obtain the colored spot base paint;

step three: preparing color dots; separately mixing colors of the base paint of the color points obtained in the step two according to the color proportion requirement of the color plate, and obtaining the color points;

step four: preparing a continuous phase; adding water 40 into a dispersion cylinder, adding 0.4 percent of preservative, 0.1 percent of defoaming agent, 0.2 percent of multifunctional additive, 1 percent of film-forming additive and 1 percent of antifreezing agent while stirring, stirring uniformly at the rotating speed of 600 plus materials of 800 revolutions per minute, adding 60 percent of emulsion, stirring uniformly, adding 1 percent of thickening agent, and obtaining a continuous phase after the viscosity is stable;

step five: preparing a finished product; taking a batching barrel, and then adding the protective glue solution obtained in the step one into a batching pipe; adding the base paint obtained in the step three into the mixing material, weighing according to a proportion, and sequentially adding the base paint in a separated manner from a large amount to a small amount by weight, specifically, pre-cutting the mixing base paint in advance, and then cutting the mixing base paint by using a granulator to obtain color points;

step six: and (4) adding the continuous phase obtained in the step four into the step five, and uniformly stirring to obtain a finished product of the water-based reflective heat-insulation marble-imitated coating.

Comparative test

The water-based reflective heat-insulating marble-imitated coating prepared by the three embodiments and the marble-imitated coating existing in the prior art are tested, and the test results are shown in the table I.

1. Testing the heat insulation property: according to the requirements of GB 10294-2008 (thermal insulation material steady-state thermal resistance and relative characteristic determination hot plate method), a thermal conductivity analyzer TPS3500 is adopted for testing.

2. And (3) testing water resistance: the procedure is as described in GB/T1733-1993, the substrate being an aluminium plate (dimensions: 50 mm. times.120 mm. times.1 mm-2 mm). And (3) immersing the aluminum plate sample in distilled water, taking out, and visually observing and recording whether the paint film has the abnormal phenomena of foaming, wrinkling, peeling, discoloration and the like.

3. And (3) aging resistance test: the tests were carried out according to the standard GB/T1865-2000 (xenon arc filtered by weathering and artificial radiation exposure of paints and varnishes) using an ultraviolet accelerated ageing test chamber LUV-2.

4. Alkali resistance test: and (3) testing according to a standard test method (testing the alkali resistance of the architectural coating) and requirements, and immediately observing whether the coating has abnormal paint film phenomena such as discoloration, foaming, peeling, pulverization, softening and the like after being taken out.

TABLE 1 characterization of thermal insulation Properties

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the technical solutions of the present invention have been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions described in the foregoing embodiments can be modified or some technical features can be replaced equally; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The water-based reflective heat-insulation marble-imitated coating is characterized by comprising the following components in parts by weight: the color point paint is prepared by mixing color point base paint, a continuous phase and protective glue solution, wherein the ratio of the color point base paint to the continuous phase to the protective glue solution is 4-8:1-3: 1-3.

2. The aqueous reflective thermal insulation marble-imitated coating as claimed in claim 1, wherein: the color point base paint comprises the following components in parts by weight: 25-35 parts of water, 0.2-0.4 part of preservative, 0.6-1 part of hydroxyethyl cellulose, 0.1-0.3 part of dispersant, 0.05-0.1 part of wetting agent, 0.2-0.3 part of defoamer, 0.5-8 parts of protective rubber powder, 1-5 parts of pigment, 5-10 parts of filler, 0.1-0.2 part of multifunctional additive, 0.7-1 part of antifreeze, 0.5-1 part of film-forming additive, 0.2-0.4 part of mildew inhibitor, 10-20 parts of emulsion and 30-45 parts of quartz sand.

3. The aqueous reflective thermal insulation marble-imitated coating as claimed in claim 1, wherein: the continuous phase comprises the following components in parts by weight: 30-50 parts of water, 0.2-0.4 part of preservative, 0.1-0.3 part of defoaming agent, 0.1-0.2 part of multifunctional additive, 0.5-1 part of film-forming additive, 0.7-1 part of antifreezing agent, 50-70 parts of emulsion and 0.5-1.5 parts of thickening agent.

4. The aqueous reflective thermal insulation marble-imitated coating as claimed in claim 1, wherein: the protective glue solution comprises the following components in parts by weight: 80-95 parts of water, 3-10 parts of protective rubber powder, 0.5-8 parts of separant and 0.1-0.2 part of preservative.

5. The aqueous reflective thermal insulation marble-imitated coating as claimed in claim 2, wherein: the hydroxyethyl cellulose is a mixture of hydroxyethyl cellulose with the molecular weight of 3 ten thousand and hydroxyethyl cellulose with the molecular weight of 10 ten thousand according to the proportion of 5-7: 2-3; the dispersant is one or a combination of more of an acrylic acid ammonium salt dispersant, a carboxylic acid sodium salt dispersant or a phosphate dispersant; the pigment is nano titanium dioxide, and the particle size of the nano titanium dioxide is 400-800 nm; the filler is one or a combination of more of graphene and hollow glass beads, the average particle size of the hollow glass beads is 10-90 mu m, and the thermal conductivity is 0.05-0.06[ W/(m & K) ]; the mildew preventive is one or a combination of 2-octyl-3 (2H) -isothiazolone or 2-methyl-3 (2H) isothiazolone.

6. The aqueous reflective thermal insulation marble-imitated coating as claimed in claim 3, wherein: the thickening agent is one or a combination of several of hydrophobic modified sodium polyacrylate, hydrophobic modified polyacrylamide or nonionic polyurethane compounds.

7. The aqueous reflective thermal insulation marble-imitated coating as claimed in claim 2 or 3, wherein: the defoaming agent is polydimethylsiloxane solution; the multifunctional additive is one or a combination of several of dimethylethanolamine, ethanolamine, ammonia water or 2-amino-2-methyl-1-propanol; the antifreezing agent is ethylene glycol or propylene glycol; the film-forming auxiliary agent is one or a combination of more of ethylene glycol monobutyl ether, alcohol ester dodeca and dipropylene glycol monobutyl ether; the emulsion is organic silicon modified acrylic emulsion, the solid content of the organic silicon modified acrylic emulsion is 46-48%, and the particle size is 600-800 nm.

8. The aqueous reflective thermal insulation marble-imitated coating as claimed in claim 2 or 4, wherein: the protective rubber powder is a mixture of lithium magnesium silicate, sodium hexametaphosphate and magnesium aluminum silicate according to the proportion of 90-96:3-5: 3-5.

9. The aqueous reflective thermal insulation marble-imitated coating as claimed in claim 2, 3 or 4, wherein: the preservative is one or a combination of magnesium dinitrate, 5-chlorine-2-methyl-3 (2H) isothiazolone or 2-methyl-3 (2H) isothiazolone copper nitrate (II).

10. The water-based reflective heat-insulation marble-imitated coating is characterized by comprising the following components in parts by weight: comprises the following steps;

the method comprises the following steps: preparing a protective glue solution; weighing 80-95 parts of water, 3-10 parts of protective rubber powder, 0.5-8 parts of separant and 0.1-0.2 part of preservative by weight, adding the water into a batching barrel, adding the protective rubber powder, the separant and the preservative while stirring, uniformly stirring, and obtaining protective rubber solution when the liquid is transparent and granular;

step two: preparing a color point base paint; weighing 25-35 parts of water, 0.2-0.4 part of preservative, 0.6-1 part of hydroxyethyl cellulose, 0.1-0.3 part of dispersant, 0.05-0.1 part of wetting agent, 0.2-0.3 part of defoamer, 0.5-8 parts of protective rubber powder, 1-5 parts of pigment, 5-10 parts of filler, 0.1-0.2 part of multifunctional additive, 0.7-1 part of antifreeze, 0.5-1 part of film-forming additive, 0.2-0.4 part of mildew inhibitor, 10-20 parts of emulsion and 30-45 parts of quartz sand;

firstly, adding water into a dispersion cylinder, adding a dispersing agent, 1/2 defoaming agent, 1/2 preservative and wetting agent while stirring, then adding hydroxyethyl cellulose, maintaining the rotating speed of 1000-2000 r/min, dispersing to a transparent state, then adding protective rubber powder, pigment and multifunctional auxiliary agent, maintaining the rotating speed of 1000-2000 r/min, stirring for about 30 min, and waiting for uniform stirring; reducing the rotating speed to 600-800 rpm, adding an antifreezing agent, a film forming aid and a mildew preventive in sequence, and dispersing for 5-10 minutes; then adding the emulsion, stirring uniformly, transferring the part in the dispersion tank to a horizontal stirrer, adding quartz sand powder and hollow glass beads, stirring uniformly, and adding the rest defoaming agent and preservative to obtain the color point base paint;

step three: preparing color dots; separately mixing colors of the color point base paint obtained in the step (2) according to the color proportion requirement of the color plate, and obtaining color points;

step four: preparing a continuous phase; weighing 30-50 parts of water, 0.2-0.4 part of preservative, 0.1-0.3 part of defoaming agent, 0.1-0.2 part of multifunctional additive, 0.5-1 part of film-forming additive, 0.7-1 part of antifreezing agent, 50-70 parts of emulsion and 0.5-1.5 parts of thickening agent in parts by weight;

adding water into a dispersion cylinder, adding a preservative, a defoaming agent, a multifunctional additive, a film-forming additive and an antifreezing agent while stirring, uniformly stirring at the rotation speed of 600-;

step five: preparing a finished product; taking a batching barrel, and then adding the protective glue solution obtained in the step one into a batching pipe; adding the base paint obtained in the step three into the blending material, weighing according to a proportion, and sequentially adding the base paint in a separated manner from a large amount to a small amount by weight, specifically, firstly, precutting the color-mixed base paint, and then, cutting the base paint by using a granulator to obtain color points;

step six: and (4) adding the continuous phase obtained in the step four into the step five, and uniformly stirring to obtain a finished product of the water-based reflective heat-insulation marble-imitated coating.