CN102399483A - Organic/inorganic composite thermal insulation water-based architectural coating and preparation method thereof - Google Patents

Abstract

The invention discloses an organic/inorganic composite heat-insulating water-based building coating and a preparation method thereof, wherein the coating comprises the following components: the coating comprises organic polymer emulsion, silica sol, infrared ceramic powder, titanium dioxide, hollow glass microspheres, ceramic microspheres, wood fibers, talcum powder, kaolin, a wetting agent, a dispersing agent, a film-forming auxiliary agent, an antifreezing agent, a silane coupling agent, a fluorine-containing auxiliary agent, a thickening agent, a sterilization mildew-proof agent, a defoaming agent, a pH regulator and deionized water. The invention utilizes the reflection action of the ceramic microspheres and the hollow glass microspheres and the low heat conductivity coefficient and the low absorbance of the silica sol, so that the coating has high sunlight reflectivity, high hemispherical emissivity and excellent heat-insulating property, and also has excellent weather resistance, water resistance and stain resistance, thereby being widely applied to heat-insulating coating of buildings, vehicles and oil storage tanks.

Description

Organic/inorganic composite thermal insulation water-based architectural coating and preparation method thereof

technical field

The invention belongs to the field of architectural coatings, and in particular relates to an organic/inorganic composite heat-insulating water-based architectural coating and a preparation method thereof.

Background technique

After the 1970s, the world's climate became warmer, and the earth's energy sources were increasingly exhausted. In my country's energy consumption, building energy consumption accounts for 30-40% of human energy consumption. Improving the thermal insulation performance of buildings is an important way to save energy and improve the function of buildings. Applying thermal insulation coatings to the surface of buildings can effectively reduce the temperature on the surface and inside of buildings. In recent years, with the popularization of building energy conservation, thermal insulation coatings have attracted more and more attention due to their advantages of economy, convenience and good thermal insulation effect. Therefore, the research and development of new and composite thermal insulation coatings has great practical significance to the daily life of human beings.

Existing heat insulation coatings mainly use heat insulation pigments and fillers such as organic polymer emulsion, hollow microspheres, porous fillers and heat reflective materials to achieve heat insulation, waterproof and antifouling purposes, such as a Chinese patent ZL99114454.6 disclosed An anti-radiation heat-insulating coating, a water-based elastic heat-insulating coating disclosed in ZL200710075800.X and its preparation method, a heat-insulating coating disclosed in ZL200910061883.6, a heat-insulating coating disclosed in ZL200510000149.0 and its use, ZL200710035834 .6 A heat-insulating coating that reflects solar heat rays, etc. disclosed. Among them, patent ZL200710035834.6 discloses a thermal insulation coating that reflects solar heat rays, which is composed of a primer coating and a top coating. The surface is covered with heat-reflecting composite materials, heat-reflecting materials and polymer resins. Because organic polymers contain a large number of light-absorbing groups such as -C=O, -C-O-C, and -OH, the degree of absorption of sunlight is higher than that of Inorganic pigments and fillers, so when the amount of organic polymer emulsion added is larger, the absorption of sunlight by the coating film will also be greater, and the thermal conductivity of the coating film will also increase accordingly, which will reduce the heat insulation effect of the coating. In order to meet the basic physical and chemical performance requirements of common exterior wall coatings, this type of existing traditional thermal insulation coatings must ensure a relatively high addition of organic polymer emulsions in the coatings, resulting in unsatisfactory thermal insulation effects.

Contents of the invention

The purpose of the present invention is to provide an organic/inorganic composite thermal insulation water-based architectural coating with high reflectivity, high hemispherical emissivity, weather resistance and stain resistance and a preparation method thereof.

The invention adopts the method of compounding the polymer emulsion and the silica sol to improve the basic performance of the coating, including weather resistance, scrub resistance, water resistance and stain resistance. Since the silica sol forms a Si-O-Si inorganic polymer network structure, the degree of absorption of sunlight is lower than that of organic polymers; at the same time, because the silica sol film can improve the stain resistance of the composite coating It is beneficial to reduce the attenuation of thermal insulation temperature difference of thermal insulation coatings and improve the thermal insulation performance of the coating; in addition, since the film formation process of silica sol does not require film-forming additives, the compounding of silica sol and organic polymer The volatile organic compound (abbreviation: VOC) content of the formulated coating is lower than that of the pure organic polymer. Therefore, the composite thermal insulation coating obtained in the present invention not only has excellent thermal insulation performance, but also has excellent physical and chemical properties, and its VOC content is low.

In order to achieve the above object, the present invention adopts the following technical solutions:

Organic/inorganic composite heat-insulating water-based architectural paint, in weight percentage, its formula is as follows:

Organic polymer emulsion 9.5～15%;

Silica sol 15～22%;

Far-infrared ceramic powder 5～15%;

Titanium dioxide 15-25%;

Hollow glass microspheres 0～5%;

Ceramic microspheres 0～10%;

Wood fiber 0～1%;

Talc powder 4～15%;

Kaolin 0～10%;

Wetting agent 0.1～0.5%;

Dispersant 0.2～1.0%;

Coalescing agent 0～1.5%;

Antifreeze 0.5～1.5%;

Silane coupling agent 0.2～0.5%;

Fluorinated additives 0.2～0.5%;

Thickener 0.5～2.0%;

Bactericide and antifungal agent 0.2～0.4%;

Defoamer 0.2～0.5%;

pH adjuster 0.1～0.5%;

Deionized water 18-30%.

The organic polymer emulsion of the present invention is one or more of poly(styrene-acrylate) copolymer emulsion, polyacrylate emulsion or silicone-modified polyacrylate emulsion; the organic polymer emulsion The glass flower temperature is 0-20°C, and the mass percentage of carboxyl groups is 0.5-1.0%.

The average particle diameter of the silica sol in the present invention is 7-30nm.

The far-infrared ceramic powder of the present invention is ceramic micropowder, the infrared emissivity of the far-infrared ceramic powder at normal temperature is 0.85-0.92, and the average particle diameter of the far-infrared ceramic powder is 325-3000 mesh.

The average particle size of the ceramic microspheres in the present invention is 1-40 μm.

The wood fiber of the present invention has an average particle diameter of 500-1000 mesh.

The silane coupling agent of the present invention is organosiloxane, including γ-aminopropyltriethoxysilane, octyltriethoxysilane, amino-methoxy functional silane, γ-glycidyl etheroxypropyl One or more mixtures of trimethoxysilane.

The fluorine-containing auxiliary agent described in the present invention is ethoxylated nonionic fluorocarbon surfactant, water-soluble phosphate anionic fluorocarbon surfactant or polyoxyethylene ether nonionic fluorocarbon surfactant one or a mixture of two or more.

The wetting agent of the present invention is an alkylphenol polyoxyethylene ether nonionic surfactant and/or a polyether modified polysiloxane wetting agent; the dispersing agent is a polycarboxylate sodium salt dispersant, poly One or more of carboxylate ammonium salt dispersant or sodium hexametaphosphate; the coalescent is propylene glycol methyl ether, propylene glycol butyl ether, dipropylene glycol methyl ether, diethylene glycol butyl ether or 2,2, One or more of 4-trimethyl-1,3-pentanediol monoisobutyrate; the antifreeze is one or two of ethylene glycol or propylene glycol; the titanium dioxide is Rutile titanium dioxide; the average particle diameter of the talcum powder is 1250 mesh, and the average particle diameter of kaolin is 4000 mesh; the thickener is hydroxyethyl cellulose, hydroxypropyl cellulose, polyurethane thickener or One or more than two kinds of alkali-swellable thickeners; the bactericidal and antifungal agents are pentachlorophenol, 5-chloro-2-methyl-4-isothiazoline-3-ketone, 2-methyl-4-isothiazole One or more of lin-3 ketone, benzothiazolinone, iodopropynyl butylcarbamate, salicylanilide; the defoamer is a silicone defoamer, polyether modified One or more of silicone defoamers and mineral oil defoamers, wherein the main components of silicone defoamers are polydimethylsiloxane, emulsifiers, dispersants and surfactants; mineral oil The main components of the defoamer are metal stearate soap, emulsifier, dispersant and surfactant; the main components of the polyether defoamer are polyoxyethylene oxypropyl glycerin, emulsifier, dispersant and surfactant; The main components of polyether modified silicone defoamer are polyether modified polydimethylsiloxane, emulsifier, dispersant and surfactant; the pH regulator is 2-amino-2-methyl- One or more of 1-propanol, ammonia water, sodium hydroxide, diethanolamine or triethylamine.

The present invention also provides a method for preparing an organic/inorganic composite heat-insulating water-based architectural coating, comprising the following steps:

(1) Add film-forming aids, antifreeze agents, wetting agents, dispersants, defoamers, silane coupling agents, thickeners and silica sols to 13~18 parts of deionized water according to the formula amount, at 300~ Stir at a speed of 500r/min for 3-10min to obtain the mixture;

(2) Add the formulated amount of titanium dioxide, far-infrared ceramic powder, ceramic microspheres, wood fiber, talcum powder and kaolin to the mixture obtained in step (1), and disperse at a speed of 1000-2000r/min for 15-60min to obtain Mixed system with fineness≤60μm;

(3) At a rotational speed of 300-600r/min, sequentially add 5-12 parts of bactericide and anti-fungal agent, organic polymer emulsion, hollow glass microspheres, defoamer, and Stir the deionized water, pH regulator and thickener evenly, adjust the viscosity of the mixed system to 11000~13000mpa/s, stop stirring, let it stand, and filter to obtain an organic/inorganic composite thermal insulation water-based architectural coating.

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

(1) The present invention uses ceramic microspheres and hollow glass microspheres, whose solar reflectance is higher than other common fillers, and they have a synergistic effect, so that the coating of the present invention has a high solar reflectance, Hemispherical emissivity is high; Hollow glass microsphere is a kind of hollow, thin-walled, hard, lightweight sphere, has extremely low thermal conductivity, can reduce the thermal conductivity of coating, the sunlight reflectance of coating of the present invention≧ 0.85, hemispherical emissivity≧0.85, insulation temperature difference≧12℃, insulation temperature difference attenuation≦12℃;

(2) In the present invention, a large amount of silica sol is added to the base material to replace the organic polymer emulsion, and the combination of organic polymer and silica sol not only improves the basic physical, chemical and chemical properties of the coating, but also because the organic/inorganic composite emulsion has excellent Excellent film-forming performance, the coating film has both flexibility and hardness, which not only improves the heat insulation effect of the coating, but also endows the coating with excellent weather resistance, scrub resistance and water resistance, and its scrub resistance ≧ 10,000 times;

(3) The present invention adds fluorine-containing additives, which further improves the hydrophobicity and oleophobicity of the coating, and endows the coating with better weather resistance, water resistance and stain resistance;

(4) The present invention reduces the content of organic polymers in the paint through organic/inorganic compounding, thereby reducing the amount of film-forming aids used in the paint, which not only reduces the VOC content of the paint, but also reduces the cost of the paint;

(5) The present invention uses far-infrared ceramic powder with high infrared emissivity at room temperature. This far-infrared functional material not only has good heat insulation effect, but also can play a certain role in medical care.

Detailed ways

The present invention will be further explained below in conjunction with specific examples, but the protection scope of the present invention is not limited thereto.

Example 1

(1) In terms of mass percentage, first add 15 parts of deionized water, 1.5 parts of ethylene glycol, 0.1 part of nonylphenol polyoxyethylene ether wetting agent, 0.5 part of polycarboxylate sodium salt dispersant, and 0.1 part of poly Methylsiloxane defoamer, 0.3 parts of γ-glycidyl etheroxypropyltrimethoxysilane, 15.7 parts of silica sol, stirred at 500r/min for 5min, then added 0.3 parts of hydroxyethyl cellulose Thickener, stirring for 5 minutes at a speed of 500r/min;

(2) Add 20 parts of rutile titanium dioxide, 15 parts of 3000-mesh far-infrared ceramic powder, 8 parts of ceramic microspheres, 0.3 parts of wood fiber, and 4 parts of talcum powder to (1), at 1500r/min Disperse at a high speed for 20 minutes to a fineness of 60 μm;

(3) Add 0.2 parts of iodopropynyl butyl carbamate, 0.2 parts of pentachlorophenol, 0.2 parts of hydroxyethyl cellulose thickener, 8.5 parts Deionized water, 10.4 parts of polyacrylate emulsion, 0.3 part of fluorine additive ethoxylated non-ionic fluorocarbon surfactant, 0.1 part of stearic acid metal soap defoamer, and 0.3 part of 2-amino-2 -Methyl-1-propanol to adjust the pH value, stir evenly, adjust the viscosity to 12000mpa/s, let it stand, and filter to obtain an organic/inorganic composite heat-insulating water-based architectural coating.

The organic/inorganic composite heat-insulation water-based architectural paint that embodiment 1 makes is carried out performance test, and result is as shown in table 1:

Table 1

                                                 

Example 2

(1) In terms of weight percentage, first add 16 parts of deionized water, 1.0 parts of ethylene glycol, 0.2 parts of nonylphenol polyoxyethylene ether wetting agent, 0.5 parts of polycarboxylate sodium salt dispersant, 0.2 parts of poly Methylsiloxane antifoaming agent, 0.2 parts of γ-glycidyl etheroxypropyl trimethoxysilane, 16 parts of silica sol, stirred at a speed of 400r/min for 5min, and then added 0.3 parts of hydroxyethyl cellulose Thickener, stirred at a speed of 500r/min for 5min.

(2) Add 22 parts of rutile titanium dioxide, 9 parts of 3000-mesh far-infrared ceramic powder, 6 parts of ceramic microspheres, 0.1 part of wood fiber, 4 parts of talcum powder, and 5 parts of mica to (1). Powder, disperse at a high speed of 2000r/min for 20min to a fineness of 60μm.

(3) Add 0.2 parts of 5-chloro-2methyl-4-isothiazolin-3-ketone and 0.2 parts of 2-methyl-4-isothiazoline-3 to (2) successively under stirring at a speed of 500r/min Ketone, 0.2 parts of hydroxyethyl cellulose thickener, 8 parts of deionized water, 10 parts of polyacrylate emulsion, 0.3 parts of fluorine additive ethoxylated non-ionic fluorocarbon surfactant, 0.3 parts of stearic acid metal soap defoamer and 0.3 parts of 2-amino-2-methyl-1-propanol to adjust the pH value, stir evenly, adjust the viscosity to 13000mpa/s, let it stand, and filter to obtain organic/inorganic composite insulation Thermally insulating waterborne architectural coatings.

The organic/inorganic composite type thermal insulation water-based architectural paint that embodiment 2 makes is carried out performance test, and result is as shown in table 2:

Table 2

 

Example 3

(1) In terms of weight percentage, first add 13 parts of deionized water, 0.1 parts of ethylene glycol, 0.5 parts of octylphenol polyoxyethylene ether wetting agent, 0.2 parts of polycarboxylate sodium salt dispersant, and 0.1 part of hexadecimal Sodium phosphate, 0.15 parts of polyoxyethylene oxypropyl glycerin defoamer, 0.3 parts of γ-aminopropyltriethoxysilane, 22 parts of silica sol, stirred at a speed of 300r/min for 5min, and then added 0.4 Part of hydroxyethyl cellulose thickener, stirred at a speed of 500r/min for 5min.

(2) Add 17 parts of rutile titanium dioxide, 5 parts of 800 mesh far-infrared ceramic powder, 8 parts of kaolin, and 10 parts of talcum powder to (1), and disperse at a speed of 2000r/min for 15 minutes to fineness 60 μm.

(3) Add 0.15 parts of benzothiazolinone, 0.15 parts of salicylanilide, 5.4 parts of deionized water, and 12 parts of phenylacrylic acid to (2) sequentially under stirring at a speed of 700r/min. Ester emulsion, 3 parts of hollow glass microspheres, 0.3 part of fluorine additive ethoxylated non-ionic fluorocarbon surfactant, 0.15 part of stearic acid metal soap defoamer, 0.2 part of polyurethane thickener and 0.1 part 1 part ammonia water to adjust the pH value, and stir evenly. Adjust the viscosity to 13000mpa/s, let it stand, and filter to obtain an organic/inorganic composite heat-insulating water-based architectural coating.

The organic/inorganic composite type thermal insulation water-based architectural paint that embodiment 3 makes is carried out performance test, and result is as shown in table 3:

table 3

Example 4

(1) In terms of weight percentage, first add 18 parts of deionized water, 1.2 parts of propylene glycol, 0.5 parts of dipropylene glycol methyl ether, 0.2 parts of octylphenol polyoxyethylene ether wetting agent, 1.0 parts of polycarboxylate ammonium salt dispersant, 0.15 parts of polyether modified polydimethylsiloxane defoamer, 0.2 parts of octyltriethoxysilane, 17.5 parts of silica sol, stirred at a speed of 500r/min for 4min, and then added 0.5 parts of hydroxyl Ethyl cellulose thickener, stirred at a speed of 500r/min for 4min.

(2) Add 17 parts of rutile titanium dioxide, 5 parts of 325-mesh far-infrared ceramic powder, 8 parts of ceramic microspheres, 0.5 parts of wood fiber, and 8 parts of talcum powder to (1), at 1000r/min Disperse at a high speed for 20 minutes to a fineness of 60 μm.

(3) Add 0.2 parts of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 0.2 parts of 2-methyl-4-isothiazoline-3 to (2) sequentially under stirring at a speed of 800r/min Ketone, 10.5 parts of deionized water, 9.5 parts of styrene-acrylic acrylate emulsion, 0.1 part of water-soluble phosphate anionic fluorocarbon surfactant, 0.15 part of stearic acid metal soap defoamer, 0.5 part of hydroxyethyl Cellulose thickener, and 0.1 part of ammonia water to adjust the pH value, and stir well. Adjust the viscosity to 12000mpa/s, let it stand, and filter to obtain an organic/inorganic composite heat-insulating water-based architectural coating.

The organic/inorganic composite type thermal insulation water-based architectural paint that embodiment 4 makes is carried out performance test, and result is as shown in table 4:

Table 4

Example 5

(1) In terms of weight percentage, first add 18 parts of deionized water, 1.2 parts of propylene glycol, 1.5 parts of diethylene glycol butyl ether, 0.1 part of polyether modified polysiloxane wetting agent, 0.5 parts Polycarboxylate sodium salt dispersant, 0.15 parts of stearic acid metal soap defoamer, 0.2 parts of γ-glycidyl etheroxypropyltrimethoxysilane, 17.5 parts of silica sol, stirred at a speed of 500r/min for 5min , and then add 0.5 parts of hydroxyethyl cellulose thickener, and stir for 3 minutes at a speed of 500 r/min.

(2) Add 15 parts of rutile titanium dioxide, 12 parts of 1000 mesh far-infrared ceramic powder, 4 parts of ceramic microspheres, 1.0 part of wood fiber, 5 parts of talcum powder, and 5 parts of kaolin to (1), Disperse at a high speed of 1500r/min for 20min to a fineness of 60μm.

(3) Add 0.2 parts of iodopropynyl butylcarbamate, 0.2 parts of salicylanilide, 7.2 parts of deionized water, and 9.5 parts of silicon acrylic acid to (2) sequentially under stirring at a speed of 700r/min Ester emulsion, 0.4 part of fluorine additive water-soluble phosphoric acid ester anionic fluorocarbon surfactant, 0.15 part of polyether modified polydimethylsiloxane defoamer, 0.2 part of alkali swelling thickener and 0.2 parts of 2-amino-2-methyl-1-propanol to adjust the pH value, and stir well. Adjust the viscosity to 11500mpa/s, let it stand still, and filter to obtain an organic/inorganic composite heat-insulating water-based architectural coating.

The organic/inorganic composite type thermal insulation water-based architectural paint that embodiment 5 makes is carried out performance test, and result is as shown in table 5:

table 5

Example 6

(1) In terms of weight percentage, first add 15 parts of deionized water, 1.2 parts of propylene glycol, 1.0 parts of propylene glycol methyl ether, 0.2 parts of octylphenol polyoxyethylene ether wetting agent, 0.2 parts of polycarboxylate sodium salt dispersant, 0.1 parts of sodium hexametaphosphate, 0.15 parts of polydimethylsiloxane defoamer, 1.0 parts of amino-methoxy functional silane, 15.5 parts of silica sol, stirred at a speed of 500r/min for 5min, then added 0.4 parts of hydroxyethyl cellulose thickener, stirred at a speed of 500r/min for 5min.

(2) Add 25 parts of rutile titanium dioxide, 5 parts of 800-mesh far-infrared ceramic powder, 5 parts of hollow glass microspheres, 0.2 parts of wood fiber, and 12 parts of talcum powder to (1), at 1500r/min Disperse at a high speed for 18 minutes to a fineness of 60 μm.

(3) Add 0.15 parts of benzothiazolinone, 0.15 parts of salicylanilide, 6 parts of deionized water, 10.5 parts of phenylacrylic acrylate emulsion, 5 Part of hollow glass microspheres, 0.2 part of fluorine additive water-soluble phosphate anionic fluorocarbon surfactant, 0.1 part of polyoxyethylene oxypropyl glycerin defoamer, 0.2 part of alkali-swellable thickener and 0.5 part part of diethanolamine to adjust the pH value, and stir evenly. Adjust the viscosity to 12500mpa/s, let it stand still, and filter to obtain an organic/inorganic composite heat-insulating water-based architectural coating.

The organic/inorganic composite heat-insulating water-based architectural paint that embodiment 6 makes is carried out performance test, and result is as shown in table 6:

Table 6

Example 7

(1) In terms of weight percentage, first add 13 parts of deionized water, 1.0 parts of propylene glycol, 1.5 parts of propylene glycol butyl ether, 0.5 parts of polyether modified polysiloxane wetting agent, 0.8 parts of polycarboxylate Acid sodium salt dispersant, 0.15 parts of stearic acid metal soap defoamer, 0.3 parts of γ-glycidyl etheroxypropyltrimethoxysilane, 15 parts of silica sol, stirred at a speed of 500r/min for 5min, and then Add 0.4 parts of hydroxyethyl cellulose thickener, and stir for 5 minutes at a speed of 500 r/min.

(2) Add 15 parts of rutile titanium dioxide, 5 parts of 800-mesh far-infrared ceramic powder, 0.3 parts of wood fiber, 15 parts of talcum powder, and 8 parts of kaolin to (1), at a speed of 2000r/min Disperse at high speed for 15 minutes to a fineness of 60 μm.

(3) Add 0.1 parts of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 0.1 parts of 2-methyl-4-isothiazoline-3 to (2) sequentially under stirring at a speed of 500r/min Ketone, 5 parts of deionized water, 0.4 parts of hydroxyethyl cellulose thickener, 15 parts of styrene-acrylic acrylate emulsion, 3 parts of hollow glass microspheres, 0.4 parts of fluorine additive polyoxyethylene ether non-ionic Type fluorocarbon surfactant, 0.1 part of polydimethylsiloxane defoamer and 0.5 part of diethanolamine to adjust the pH value, and stir evenly. Adjust the viscosity to 11000mpa/s, let it stand still, and filter to obtain an organic/inorganic composite heat-insulating water-based architectural coating.

The organic/inorganic composite heat-insulation water-based architectural paint that embodiment 7 makes is carried out performance test, and result is as shown in table 7:

Table 7

Example 8

(1) In terms of weight percentage, first add 15 parts of deionized water, 1.0 parts of ethylene glycol, 0.7 parts of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, 0.5 Part nonylphenol polyoxyethylene ether wetting agent, 0.1 part polycarboxylate sodium salt dispersant, 0.1 part sodium hexametaphosphate, 0.1 part polyoxyethylene oxypropyl glycerin defoamer, 0.3 part octyl triethoxy base silane, 15 parts of silica sol, stirred at a speed of 500r/min for 5 minutes, then added 0.8 parts of hydroxypropyl cellulose thickener, and stirred at a speed of 500r/min for 5 minutes.

(2) Add 15 parts of rutile titanium dioxide, 5 parts of 1000-mesh far-infrared ceramic powder, 12 parts of talc powder, and 10 parts of kaolin to (1), and disperse at a speed of 1500r/min for 18min to a fineness of 60μm.

(3) Add 0.2 parts of benzothiazolinone, 0.15 parts of iodopropynyl butyl carbamate, 5 parts of deionized water, and 15 parts of Styrene acrylate emulsion, 0.15 parts of stearic acid metal soap defoamer, 4 parts of hollow glass microspheres, 0.4 part of fluorine additive polyoxyethylene ether non-ionic fluorocarbon surfactant, 0.4 part of polyurethane enhancer thickener, and 0.15 parts of triethylamine to adjust the pH value, and stir evenly. Adjust the viscosity to 12400mpa/s, let it stand, and filter to obtain an organic/inorganic composite heat-insulating water-based architectural coating.

The organic/inorganic composite heat-insulation water-based architectural paint that embodiment 8 makes is carried out performance test, and result is as shown in table 8:

Table 8

Example 9

(1) In terms of weight percentage, first add 13 parts of deionized water, 1.0 parts of ethylene glycol, 1.0 parts of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, 0.5 parts Polyether modified polysiloxane wetting agent Wetting agent, 0.5 part polycarboxylate ammonium salt dispersant, 0.15 part polydimethylsiloxane defoamer, 0.3 part γ-aminopropyltriethoxysilane 15 parts of silica sol, stirred at a speed of 500r/min for 5 minutes, then added 0.4 parts of hydroxyethyl cellulose thickener, and stirred at a speed of 500r/min for 5 minutes.

(2) Add 15 parts of rutile titanium dioxide, 5 parts of 325 mesh far-infrared ceramic powder, 15 parts of talc powder, and 8 parts of kaolin to (1), and disperse at a high speed of 1500r/min for 20min to a fineness of 60μm.

(3) Add 0.3 parts of benzothiazolinone, 5.5 parts of deionized water, 15 parts of styrene-acrylic acrylate emulsion, and 0.15 parts of stearic acid metal soap to (2) successively under stirring at a speed of 700r/min. Foaming agent, 4 parts of hollow glass microspheres, 0.1 part of fluorine additive polyoxyethylene ether nonionic fluorocarbon surfactant, 0.5 part of polyurethane thickener and 0.1 part of ammonia water to adjust the pH value, and stir evenly. Adjust the viscosity to 11700mpa/s, let it stand, and filter to obtain an organic/inorganic composite heat-insulating water-based architectural coating.

The organic/inorganic composite heat-insulating water-based architectural paint that embodiment 9 makes is carried out performance test, and result is as shown in table 9:

Table 9

Example 10

(1) In terms of weight percentage, first add 15 parts of deionized water, 1.0 parts of propylene glycol, 0.2 parts of nonylphenol polyoxyethylene ether wetting agent, 1.0 parts of polycarboxylate ammonium salt dispersant, and 0.15 parts of polydimethyl Silicone defoamer, 0.3 parts of γ-aminopropyltriethoxysilane, 18 parts of silica sol, stirred at a speed of 500r/min for 5min, then added 1.0 part of hydroxypropyl cellulose thickener, Stir for 5 min at a speed of 500 r/min.

(2) Add 18 parts of rutile titanium dioxide, 5 parts of 3000 mesh far-infrared ceramic powder, 10 parts of ceramic microspheres, 0.2 parts of wood fiber, 5 parts of talcum powder, and 6 parts of kaolin to (1) in sequence , Disperse at a high speed of 1500r/min for 20min to a fineness of 60μm.

(3) Add 0.2 parts of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 0.2 parts of 2-methyl-4-isothiazoline-3 to (2) successively under stirring at a speed of 700r/min Ketone, 5.8 parts of deionized water, 12 parts of styrene-acrylic acrylate emulsion, 0.1 part of fluorine additive water-soluble phosphoric acid ester anionic fluorocarbon surfactant, 0.15 part of polyether modified polydimethylsiloxane Antifoaming agent, 1.0 part of hydroxypropyl cellulose thickener and 0.3 part of triethylamine to adjust the pH value, and stir well. Adjust the viscosity to 11600mpa/s, let it stand, and filter to obtain an organic/inorganic composite heat-insulating water-based architectural coating.

The organic/inorganic composite heat-insulating water-based architectural paint that embodiment 10 makes is carried out performance test, and the result is as shown in table 10:

Table 10

Claims (10)

1. the compound heat-insulation and heat-preservation aqueous architectural coating of organic/inorganic is characterized in that, by weight percentage, the prescription of said trade sales coating is following:

Organic polymer emulsion 9.5～15%;

Silicon sol 15～22%;

Far infrared ceramic powder 5～15%;

White titanium pigment 15～25%;

Hollow glass micropearl 0～5%;

Ceramic microsphere 0～10%;

Wood fibre 0～1%;

Talcum powder 4～15%;

Kaolin 0～10%;

Wetting agent 0.1～0.5%;

Dispersion agent 0.2～1.0%;

Film coalescence aid 0～1.5%;

Frostproofer 0.5～1.5%;

Silane coupling agent 0.2～0.5%;

Fluorine-containing auxiliary agent 0.2～0.5%;

Thickening material 0.5～1.0%;

Biocide mildewcide 0.2～0.4%;

Skimmer 0.2～0.5%;

PH regulator agent 0.1～0.5%;

Deionized water 18～30%.

2. the compound heat-insulation and heat-preservation aqueous architectural coating of organic/inorganic according to claim 1; It is characterized in that said organic polymer emulsion is for gathering in (cinnamic acrylic ester) copolymer emulsion, polyacrylate emulsion or the silicone-modified polyacrylate emulsion one or more;

The second-order transition temperature of said organic polymer emulsion is 0 ~ 20 ℃, and the carboxyl mass percent is 0.5 ~ 1.0%.

3. the compound heat-insulation and heat-preservation aqueous architectural coating of organic/inorganic according to claim 2 is characterized in that the median size of said silicon sol is 7 ~ 30nm.

4. the compound heat-insulation and heat-preservation aqueous architectural coating of organic/inorganic according to claim 3; It is characterized in that; Said far infrared ceramic powder is a ceramic; Said far infrared ceramic powder infrared rate at normal temperatures is 0.85 ~ 0.92, and the median size of said far infrared ceramic powder is 325 ~ 3000 orders.

5. the compound heat-insulation and heat-preservation aqueous architectural coating of organic/inorganic according to claim 4 is characterized in that, the median size of said ceramic microsphere is 1～40 μ m.

6. the compound heat-insulation and heat-preservation aqueous architectural coating of organic/inorganic according to claim 5 is characterized in that the median size of said wood fibre is 500 ~ 1000 orders.

7. the compound heat-insulation and heat-preservation aqueous architectural coating of organic/inorganic according to claim 6; It is characterized in that said silane coupling agent is one or more mixtures in γ-An Bingjisanyiyangjiguiwan, octyltri-ethoxysilane, amino-methoxy functional silane, the γ-glycidyl ether oxygen propyl trimethoxy silicane.

8. the compound heat-insulation and heat-preservation aqueous architectural coating of organic/inorganic according to claim 7; It is characterized in that said fluorine-containing auxiliary agent is one or more in ethoxy base class non-ionic type fluorocarbon surfactant, water-soluble phosphate anionoid type fluorocarbon surfactant or the polyoxyethylene groups ethers non-ionic type fluorocarbon surfactant.

9. the compound heat-insulation and heat-preservation aqueous architectural coating of organic/inorganic according to claim 8 is characterized in that, said wetting agent is TX10 class nonionogenic tenside and/or polyether-modified ZGK 5 wetting agent; Said dispersion agent is one or more in polycarboxylate sodium's dispersion agent, poly carboxylic acid ammonium salt dispersion agent or the Sodium hexametaphosphate 99; Said film coalescence aid is propylene glycol monomethyl ether, Ucar 35 butyl ether, dipropylene glycol methyl ether, Diethylene Glycol butyl ether or 2,2,4-trimethylammonium-1, one or more in the 3-pentanediol mono isobutyrate; Said frostproofer is one or both in terepthaloyl moietie or the Ucar 35; Said white titanium pigment is a Rutile type Titanium Dioxide; Said talcous median size is 1250 orders, and kaolinic median size is 4000 orders; Said thickening material is one or more in Natvosol, hydroxypropylcellulose, polyurethanes thickening material or the alkali swelling type thickening material; Said biocide mildewcide is one or more in pentachlorophenol, 5-chloro-2 methyl-4 isothiazoline-3 ketone, 2-methyl-4 isothiazoline-3 ketone, benzothiazolinone, iodo propinyl butyl carbamate, the Salicylanlide; Said skimmer is a silicone antifoam agent, one or more in organic silicon modified by polyether skimmer and the mineral oil antifoam agent, and wherein the staple of silicone antifoam agent is YSR 3286, emulsifying agent, dispersion agent and tensio-active agent; The staple of mineral oil antifoam agent is metallic soap of stearic acid, emulsifying agent, dispersion agent and tensio-active agent; The staple of polyether antifoam agent is T 46155 oxygen propyl group glycerine, emulsifying agent, dispersion agent and tensio-active agent; The staple of organic silicon modified by polyether skimmer is polyether-modified YSR 3286, emulsifying agent, dispersion agent and tensio-active agent; Said pH regulator agent is one or more in 2-amino-2-methyl-1-propanol, ammoniacal liquor, sodium hydroxide, diethylolamine or the triethylamine.

10. the preparation method of the compound heat-insulation and heat-preservation aqueous architectural coating of the described organic/inorganic of one of claim 1 ~ 9 is characterized in that, may further comprise the steps:

(1) according to formula ratio film coalescence aid, frostproofer, wetting agent, dispersion agent, skimmer, silane coupling agent, thickening material and silicon sol are joined in 13 ~ 18 parts of deionized waters, under the rotating speed of 300～500r/min, stir 3～10min and obtain mixture;

(2) white titanium pigment, far infrared ceramic powder, ceramic microsphere, wood fibre, talcum powder and the kaolin of adding formula ratio in the mixture that step (1) obtains disperse 15 ~ 60min to obtain the mixed system that fineness is 40 ~ 60 μ m under the rotating speed of 1000～2000r/min;

(3) under 300～600r/min rotating speed; In the mixed system that step (2) obtains, add biocide mildewcide, organic polymer emulsion, hollow glass micropearl, skimmer, 5 ~ 12 parts of deionized waters, pH regulator agent and thickening materials of formula ratio successively, stir, obtain the mixed system that viscosity is 11000 ~ 13000mpa/s; Stop to stir; Leave standstill, filter, obtain the compound heat-insulation and heat-preservation aqueous architectural coating of organic/inorganic.