TWI645004B - Solar light heat reflection heat insulation water-filled sand colorful environmental protection paint and preparation method thereof - Google Patents

Abstract

The invention discloses a solar thermal reflection heat insulation water-sand sand colorful environmental protection paint and a preparation method thereof, and the water-sand sand colorful environmental protection paint is formed by four stages of a colloid solution, a gel solution, a granulation base paint and a finished paint, and the water-based acrylic acid is used. The copolymer dispersion is the main body, and after being naturally dried to form a paint film, it has good weather resistance, stain resistance, water resistance, chemical resistance, self-cleaning property, safety and environmental protection, and wide application range; gel agent The addition effectively improves the workability, agitation, transportability, anti-settling property, particle crush resistance and overall storage stability of the paint itself; ceramic hollow beads are added to the paint to further block the sunlight remaining in the wall. The radiant energy itself is a single hollow sphere with a thin wall, similar to the double-layer glass effect, and has heat-reflecting thermal insulation properties, which greatly improves the thermal insulation performance of the coating.

Description

Solar light heat reflection heat insulation water-filled sand colorful environmental protection paint and preparation method thereof

The invention relates to the technical field of thermal insulation coatings for buildings, in particular to a solar thermal reflection heat insulation water-sand sand colorful environmental protection coating and a preparation method thereof.

Building energy conservation is one of the key points of energy conservation work, and external wall insulation has become the main product of building energy conservation. For the thermal design, the colder areas are mainly used, such as the cold and cold areas, the external thermal insulation is not only appropriate, but also better development.

Coatings that can be used for thermal insulation on the surface to be coated are called thermal insulation coatings. They are classified into transparent thermal insulation coatings and non-transparent thermal insulation coatings according to different occasions. According to the thermal insulation mechanism, insulation can be applied. Insulation coatings are divided into three types: barrier thermal insulation coatings, reflective thermal insulation coatings and radiant thermal insulation coatings.

Cangzhou Sandeli Paint & Coating Co., Ltd. has disclosed the solar thermal reflection heat-insulating water-in-water colorful environmental protection coating and its production method in Chinese Patent No. CN104177940A. The coating is made of colloidal solution, granulation base paint and latex finished paint. The stage is formed, the specific components and parts of each part are as follows: 1. Colloidal solution: 90-100 parts of tap water, 2 parts of cross-linking stabilizer, 7-8 parts of protective rubber powder; 2. Granulation base paint: tap water 400- 450 parts, 6-10 parts of wetting and dispersing agent, 4-9 parts of antifoaming agent, 5-8 parts of film forming agent, 10-15 parts of propylene glycol, 80-100 parts of heat insulating powder, 5-10 parts of cellulose, help 13-16 parts, 100-150 parts of colloidal solution, 250-300 parts of elastic polymer emulsion, 40-50 parts of infrared reflective pigment; 3. Finished latex paint: 200-220 parts of elastic polymer emulsion, 250-290 parts of tap water , 10-14 parts of film forming agent, 8-10 parts of propylene glycol, 0.5-1 part of antifoaming agent, 480-510 parts of granule paint, 3-5 parts of auxiliary agent; wherein the particle lacquer described in the finished latex paint is The lacquer obtained after granulation of the granulation base paint. The coating is capable of thermally reflecting sunlight and is capable of insulating. However, the type is still a "water-in-water" coating, and it is difficult to form a three-dimensional decorative surface.

In order to meet the increasing requirements for interior and exterior wall coatings, “water-in-sand” coatings are constantly emerging. Chinese Patent No. CN 106590425A discloses a colorful coating of lichen-coated water-sand sand and a preparation method thereof and application on the thermal insulation board, including the following components: colorful base material, aqueous rheological auxiliary solution, wrapped glaze and quartz sand The weight ratio of the colorful base material, the aqueous rheological auxiliary solution, the wrapped glaze and the quartz sand is 3:2:3:2, and the water-sand sand colorful paint has strong sand-binding ability, good stereoscopic effect, texture Good features. Chinese Patent No. CN107163721A discloses a water-in-sand stone stone paint, water-sand sand wall paint material composition: water, cellulose, dispersant, defoamer, ethylene glycol, bactericide, titanium dioxide, sulfuric acid钡, multi-functional auxiliaries, film-forming auxiliaries, acrylic emulsions, natural sands, tourmaline powders are mixed in proportion to make water-sand sand-type paints. The water-in-sand wall paint made according to the solution of the present invention has a natural sand texture effect and is capable of releasing negative ions. Chinese Patent No. CN107056146A discloses a water-sand sand colorful paint with low cost, simple operation and stable viscosity, including a protective glue solution, a water-sand sand colorful paint white base paint, a basic color paint, a water-sand sand colorful paint continuous phase, Water-filled sand colorful paint preparation steps.

However, the above patented technology has the following problems: First, the production method is to prepare a 5-10% concentration of the protective glue solution, and then prepare a white sand-containing base paint, and then add the color paste according to the design requirements, and finally color. The granulation of the paint is complicated, and the stirring and dispersing equipment used in the granulation causes the particle size to be not uniform enough during granulation, which affects the appearance of the coating film and the construction performance. Secondly, the paint uses only a few reflective pigments to reflect its reflective heat insulation function, and it is impossible to diversify the color. The sand used is ordinary white sand, which makes it less effective in blocking residual solar radiation energy, and can not further block the residual solar radiation energy penetrating into the wall, greatly reducing the effect of reflection and heat insulation of the paint, and Does not have insulation function.

The object of the present invention is to provide a decorative surface with a three-dimensional effect, a solar energy heat-insulating heat-insulating water-filled sand colorful environmental protection paint with solar radiation heat insulation, high-efficiency heat preservation and simple production process.

Another object of the present invention is to provide a method for preparing a solar energy heat-reflecting heat-insulating water-sand sand colorful environmentally-friendly paint, which has a simple production process and can be mass-produced industrially, and the product can form a three-dimensional decorative surface with solar emission. Insulation, efficient insulation.

The invention provides a solar energy heat reflective heat insulation water-sand sand colorful environmental protection paint, which is formed by four stages of a colloid solution, a gel solution, a granulation base paint and a finished paint. The specific components and weight parts of each part are as follows: 1. Colloid Solution: 90-100 parts of tap water, 2 parts of cross-linking stabilizer, 7-8 parts of protective rubber powder; 2. Gel solution: 90-100 parts of tap water, 2-3 parts of gelling agent; 3. Granulation base paint: 200-250 parts of tap water, 2-3 parts of inorganic thickener, 6-10 parts of wetting and dispersing agent, 4-9 parts of antifoaming agent, 3-5 parts of film forming agent, 60-80 parts of heat insulating powder, modified 5-10 parts of bentonite, 9-12 parts of auxiliary agent, 250-300 parts of aqueous acrylic copolymer dispersion, 50-80 parts of natural colored sand, 90-120 parts of ceramic hollow microspheres, nano-infrared reflective pigment CICP 40- 50 parts, 100-150 parts of colloidal solution, 80-100 parts of gel solution; Fourth, finished paint: 200-220 parts by weight of aqueous acrylic polymer dispersion, 100-150 parts by weight of tap water, 10-14 parts by weight of film former , propylene glycol 12-16 parts by weight, antifoaming agent 0.5-1 part, preservative 2-3 parts by weight, thickener 3-5 parts by weight, particle lacquer 600-650 parts by weight, in the finished paint That is made of granulated particles of said paint after paint base paint pelletized.

Preferably, the crosslinking stabilizer is sodium pyrophosphate, which ensures the fluidity of the colloid; the protective rubber powder is lithium magnesium niobate, which can improve the suspension, thixotropic and chemical stability of the colloid.

Preferably, the gelling agent is an emulsion type gelling agent which is processed by using natural biopolymerization technology using natural, semi-synthetic and synthetic polymer materials, and is commonly used as a polyacrylic cellulose derivative. Preferably, it is NJ-1 high-strength structural adhesive of Jinan Baishiduo Polymer Chemical Technology Co., Ltd.

The gelling agent is a natural biological activity, a water-retaining and oil-retaining auxiliary agent, which can effectively improve the workability, agitation, transportation, anti-settling property, particle crushing resistance and overall storage stability of the coating itself, and can also be improved. The elasticity and flexibility of the coating. The natural color sand is added to the paint. Due to its inherent weight and hardness, the sand is easy to sink in the paint and the sand particles are easily collided during construction, transportation and mixing. They are broken or broken by collision with each other. The gel solution is used to make the gel solution to improve the anti-sinking property of the paint and the crush resistance of the particles, but directly add the gelling agent to the granulation base paint. The effect of the invention is not obvious, and the invention is verified by the experimental performance effect, the gel solution is separately prepared, and then added to the granulation base paint, and the anti-sinking property of the coating and the anti-crushing effect of the particles are excellent.

Preferably, the inorganic thickener is a modified smectite thickener, which is a kind of gel mineral which swells by water to form a thixotropic property, and has a fine particle size, and can be easily used by a conventional high-speed dispersing device. It is dispersed in an aqueous system, and its special gel network structure enhances coating performance, excellent sag resistance, excellent suspension and alignment properties, and excellent moisture resistance compared with hydroxyethyl cellulose. Sexual and thixotropic lubricity, used to replace hydroxyethyl cellulose, with thickening, water retention, suspension, lubrication, alignment, and overcome the shortcomings of cellulose mildew, degradation, water resistance, etc. Changing and reducing the viscosity change of the coating due to temperature makes the product's workability, lubricity and storage stability significantly better than the use of cellulose; preferably Jinan Baishiduo BS-868.

Preferably, the wetting and dispersing agent is selected from any one or more selected from the group consisting of sodium polyacrylate, trisodium phosphate, decanoate, alkylphenol ethoxylate, and alkylaryl sulfonate, which have The surface of the parental molecule structure is qualitatively adsorbed in the interface direction to reduce the surface tension of the liquid, and the effect is to disperse the fine pigment and the filler in the base material.

The antifoaming agent is selected from any one or two or more selected from the group consisting of modified polyoxyalkylene oxides and organic alcohol compounds.

The film forming agent is selected from any one or more of polyester alcohol, polyvinyl alcohol, sodium alginate and xanthan gum, and is also called a coalescing auxiliary agent, which can promote plastic flow and elastic deformation of the polymer compound, and improve the polymerization. The performance of the coating, which enables the coating to form a film hardening over a wide range of application temperatures.

Preferably, the heat insulating powder is a combination of any one or more of alumina, magnesia, titania, and zinc oxide. It has the characteristics of low tinting strength, high solar reflectance, etc., and it has little influence on the original color in the color system, and improves the reflection and heat insulation effect of sunlight.

Preferably, the modified bentonite is modified by using 8-hydroxyquinoline as a modifier, and the modified bentonite and bentonite modified deep processed product are prepared to form a new hydrophobic oleophilic oil. The organic bentonite complex makes the particles in the coating hydrophobic and no longer soluble.

Preferably, the auxiliary agent is a combination of any one or more of a multifunctional pH adjuster, a preservative, and an antifreeze stabilizer. Wherein, the thickener is an emulsion type thickener of a hydrophobically modified acrylate crosslinked copolymer, and has the dual advantages of water-soluble macromolecules and formation of an association network, high thickening ratio, and appropriate Rheological property has excellent thickening effect on various emulsion copolymer dispersions and aqueous solution systems, preferably AT-51 of Fuzhou Edit Chemical Technology Co., Ltd.

Adding a thickener to the granulation base paint and the finished paint separately has different effects and protective protective materials. The inorganic thickener is added to the granulation base paint to protect the particles themselves. Protection, increase its own stability, make the particle function better; the thickening agent added to the finished latex paint is for the protection of the appearance of the coating film, so that the appearance of the coating film function is better; the two-way targeted addition can be better The entire system of the coating is protected.

Preferably, the preservative refers to a natural or synthetic chemical component which delays the corrosion of the coating due to microbial growth or chemical changes caused by external factors; it may be benzoic acid and its salts, benzyl alcohol, hydroxyphenyl esters, sorbus Any one or two or more of acid and p-chloroxylenol. The antifreeze stabilizer can provide anti-frost and storage stability effects, preferably propylene glycol.

Preferably, the aqueous acrylic copolymer dispersion is an anionic resin, and is also a high hardness and high weather resistant self-crosslinking acrylic copolymer dispersion, which has excellent weather resistance, chemical resistance, heat resistance and high Hardness and superior adhesion. Since the water-based sand colorful environmentally-friendly coating adopts the above-mentioned aqueous acrylic copolymer dispersion as the main film-forming substance, the overall performance of the final finished paint can be greatly improved.

Preferably, the natural colored sand is processed by a plurality of processes such as selection, crushing, crushing, grading and packaging of ores such as marble or granite, and has strong wear resistance, waterproof, anticorrosive, non-toxic, strong bonding force and color. Beautiful features such as beautiful.

Preferably, the ceramic hollow microspheres are prepared from a titanium-borate product having an average particle size of 16-20 um, a bulk density of >180 Kg/m3, a sphericity of >95%, and a compressive strength. 500kPa. The preparation procedure is specifically: first preparing a ceramic precursor water or slurry containing a surfactant and a foaming agent, and then changing the water liquid or the slurry into droplets, and the droplets form a hollow by the action of the surfactant and the foaming agent. After drying, it is heated to form ceramic hollow microspheres which are high strength, inert and hard. Fine spherical particles, belonging to lightweight non-metallic multifunctional materials, standard spherical, loose, fluid, hollow, hard outer shell, which can be directly added to the coating system by means of fillers, very easy to disperse in aqueous material system The coating film formed by curing the coating has heat-reflecting heat insulation and sound insulation properties. The utility model has the advantages of light weight, small density, low thermal conductivity, thermal insulation performance, small specific area, high compressive strength, high melting point, high heat reflectivity, small heat transfer coefficient and thermal contraction coefficient, and good chemical stability; the material also has Excellent thermal insulation and sound insulation, non-toxic, self-lubricating, high dispersion and so on. It can improve the comprehensive performance of finished paint and improve the mechanical processing performance of finished paint.

Preferably, the nano-scale infrared reflective pigment is any one or two or more of rutile-type titanium dioxide or pebbly nano-composite inorganic pigment CICP.

More preferably, the Pemont nano-composite inorganic pigment CICP is selected from YE608/YE607 titanium nickel yellow, BR602/BR604 titanium chrome yellow, BU612/BU614/BU616 cobalt blue, BU716 manufactured by Nanjing Peimont Technology Co., Ltd. Any one or two or more of cobalt blue, GC705 cobalt green, GT700 titanium cobalt green, YB626 titanium manganese brown, BF611 iron manganese black, BK711 copper chrome black, BC812 ferrochrome black, BR402 chrome iron brown.

The above-mentioned Pember nano-composite inorganic pigment CICP is a pigment formed by high-temperature simmering, air convection pulverization and dicing, and is a high-performance and environmentally-friendly composite inorganic pigment with excellent weather resistance and chemical resistance. Product performance, high temperature resistance, easy dispersion, strong thermal stability, excellent tinting strength and hiding power. And after SGS testing, lead, cadmium, mercury, hexavalent chromium indicators meet the EU ROHS directive, in line with Japan's SONY environmental standards. It can also effectively improve the solar light heat reflection efficiency. It can reduce the surface temperature of the system by using it in coatings, and it can achieve the effects of heat insulation, environmental protection and energy saving, improve the thermal comfort of the environment and save energy.

The solar thermal reflection heat insulation water-sand sand colorful environmental protection coating of the invention adopts the aqueous acrylic copolymer dispersion as the main body, and forms a paint film after being naturally dried, and has good weather resistance, stain resistance, water resistance and chemical resistance. , the ability to maintain color performance; the addition of functional additives can Further improve the performance of the coating, such as storage stability, construction performance, flexibility, paint color durability. Secondly, a new type of nano-level infrared reflective pigment CICP and heat-insulating powder are added to the coating to make the coating have the ability of solar light reflection, which can effectively control the surface temperature of the coating system and play the role of reflection heat insulation, environmental protection and energy saving. . Third, ceramic hollow microspheres are used in the coating, which are thin single hollow spheres, similar to double-layer glass effect, with heat-reflecting thermal insulation properties, which can further block the residual solar radiation energy that penetrates into the wall and can Insulation greatly improves the thermal insulation performance of the coating, improves the thermal comfort of the environment, and saves energy. Fourth, the different metals in the nano-level infrared reflective pigment CICP can be formed into different colors after being melted at different temperatures in different proportions, and the water-coated sand environmental protection coating with color heat-reflecting heat insulation can be prepared to meet the colorful demands of the market and improve the decorative effect. Finally, the three-dimensional decorative effect of the paint of the invention is good, the paint film has good sensory appearance and the color is colorful and vivid.

The invention also finds that the raw material adopts the formula of aqueous acrylic copolymer dispersion, nano infrared reflective pigment CICP, heat insulating powder, modified bentonite, ceramic hollow microbead and natural colored sand, and has synergistic effect, aqueous acrylic copolymer dispersion In addition to improving the overall performance of the final coating, it can also interact with heat-insulating powder, nano-infrared reflective pigment CICP, ceramic hollow micro-beads and natural colored sand during granulation to make the particles bulge outward. Similar to the "double-glazed" space effect, combined with the ceramic hollow micro-bead itself is a thin wall of a single hollow sphere, with heat-reflecting thermal insulation properties, thereby further improving the coating's reflective thermal insulation effect, and has a good three-dimensional Sense, the paint film is good. Secondly, when the sunlight is irradiated on the coating, the nano-infrared reflective pigment CICP and the heat-insulating powder in the coating have the function of reflecting heat insulation, which can improve the heat-insulating heat-insulating efficiency of the sunlight, reduce the surface temperature of the coated system, and weaken The heat absorbed by the coated object, together with the ceramic hollow microspheres, can further block the residual solar radiation energy penetrating into the wall, so that the coating further reduces the heat buildup, and the coated object is emitted to the surrounding ring. The heat in the environment is greatly reduced, the heat insulation effect is more obvious, the air conditioner usage rate is fundamentally reduced, and the heat insulation can be maintained in the winter, which reduces the use of the heat source and greatly reduces the energy consumption.

In addition, the solar thermal reflection heat insulation water-sand sand colorful environmental protection paint of the invention can be used with water-based architectural paints, such as interior and exterior wall putty, crack-resistant mortar, interior and exterior wall primer, interior and exterior wall paint, etc., if further want to block residual Radiant energy and enhanced reflection insulation effect can be used with reflective thermal insulation coatings such as external thermal insulation and putty.

The invention also provides a method for producing the above solar thermal reflection heat insulation water-sand sand colorful environmental protection coating, comprising the following steps:

1. Preparation of colloidal solution: 90-100 parts by weight of tap water and 2 parts by weight of crosslinking stabilizer are added to the first mixing vessel under stirring. After the crosslinking stabilizer is completely dissolved in tap water, the protective rubber powder is added 7-8. The parts by weight are stirred until the aqueous solution is sufficiently dissolved to a transparent and clear form; after the preparation, the solution is preferably used after being left in a dry place at room temperature for 24 hours.

2. Preparation of gel solution: 90-100 parts by weight of tap water and 2-3 parts by weight of a gelling agent are added to the second mixing vessel under stirring, and stirred until the aqueous solution is sufficiently dissolved.

3. Preparation of granulation base paint: 200-250 parts by weight of tap water is added to the third mixing container, and 2-3 parts by weight of the inorganic thickener is added to the dispersion without disintegration, and then the wetting dispersing agent 6-10 is sequentially added. Parts by weight, 4-9 parts by weight of the antifoaming agent, 3-5 parts by weight of the film forming agent, 13-16 parts by weight of the auxiliary agent, and 5-10 parts by weight of the modified bentonite and 60-80 parts by weight of the heat insulating powder are added after stirring. , nano-level infrared reflective pigment CICP40-50 parts by weight, stir evenly, after high-speed dispersion to a predetermined fineness, add 50-80 parts by weight of natural colored sand, 90-120 parts by weight of ceramic hollow microspheres, aqueous acrylic copolymer The dispersion is 250-300 parts by weight, and is completely dispersed and then shut down.

4. Granulation process: 100-150 parts by weight of colloidal solution, 30-50 parts by weight of tap water, and 400-500 parts by weight of granulation base paint are put into the third mixing container, and then uniformly granulated after standing for 10-15 minutes. And then adding 80-100 parts by weight of the gel solution to be uniformly wrapped by the gel solution;

5. Preparation of finished paint: 100-150 parts by weight of tap water is added to the fourth mixing container, 200-220 parts by weight of the aqueous acrylic copolymer dispersion is added under stirring, and 10-14 parts by weight of the film forming agent and defoaming agent are added. 0.5-1 part by weight, propylene glycol 10-13 parts by weight, preservative 2-3 parts by weight, after stirring evenly, add 600-650 parts by weight of the granule paint, and finally 3-5 parts by weight of the thickener to adjust the viscosity of the system. Adjust to 70ku-85ku.

Preferably, the mixing container is a paint tank, and the stirring is performed by a 11-15 KW high-speed variable frequency mixer. When the colloidal solution is prepared, the stirring speed is 1500-2000 rpm; the stirring time after adding the protective rubber powder is 15-20 min; When the gel solution is prepared, the stirring speed is 1500-2000 rpm, and the stirring time is 10-15 min.

Preferably, when preparing the granulation base paint, the stirring speed of the tap water and the inorganic thickener is 1000-1500 rpm, and the dispersion is 5-8 min until no granules are added. After the powder is added, the stirring speed is increased to 2000-2500 rpm. High speed dispersion to a predetermined fineness 30 μm, stirring time is 25-30 min, the speed of the aqueous acrylic copolymer dispersion is 800-1000 rpm, and then stirred for 20-25 min.

Preferably, the granulation process is granulated with different meshes according to the size of the desired color granules, and the gel solution is added to stand until the particles are completely wrapped by the gel solution for 20-30 min.

Preferably, when preparing the finished lacquer, the stirring speed is 600-800 rpm; after the mixing is uniform, the dispersing disc is used, and more preferably, the shearing force is low, such as a stick type or a paddle type dispersing disc, and the dispersing disc is Reference may be made to the utility model patent technology of the applicant's prior Chinese Patent Application No. CN201420861869.0 and No. CN201420862077.5.

The above-mentioned solar light heat reflective thermal insulation water-filled sand colorful environmental protection coating construction method comprises the following steps: 1. Preparation: solar heat reflection heat insulation water-filled sand colorful environmental protection paint without water addition, direct spraying construction, air spraying First of all, the paint should have a corresponding primer as a matching before spraying, such as closed primer, putty, water-based engineering primer, etc.; if there are oil stains, dust and other debris on the painted surface, first use a wire brush or sandpaper. Removal, such as honeycomb, cracks, hollow drum depression and other uneven phenomena, should be repaired with external wall putty first, dry before construction. Secondly, the window sill, door edge, trees and certain grounds should be covered with plastic film before construction. 2. Spray the paint: spray the paint evenly with a special spray gun (one shot is colorful); Attention should be paid to the matching of the air pressure and the nozzle diameter so that it can be evenly coated. It is necessary to first test the appearance of the coating film on the caliber of the spray gun, air pressure, etc., and then spray a large amount. The spray gun should be operated at a certain speed, a certain distance, and the nozzle and spray surface should be kept parallel. The finishing position of the spraying should be at the jointing point. When spraying, it must be sprayed when it is not dry. If it is dried and then sprayed, it will easily produce fine particle overlap, which will affect the appearance. The same size and area is best to be sprayed once. Try to make the base surface spray once when it is not dry.

In addition, it should be noted that the paint should not be stirred vigorously, and should not be mixed with other substances. It should not be diluted with water. The paint after opening can be used up as soon as possible. After one day of construction, remove the protective cover plastic film, clean and clean the relevant parts. With the ground; completely hardened and naturally dried for seven days.

The beneficial effects of the invention are:

1. Using water-based acrylic copolymer dispersion as the main body, after natural drying to form a paint film, it has good weather resistance, stain resistance, water resistance, chemical resistance, self-cleaning, safety and environmental protection, and wide application range. The addition of functional additives can further improve the performance of the coating, such as storage stability, workability, flexibility, paint color durability.

The new nano-level infrared reflective pigment CICP and thermal insulation powder are added to the coating to make the coating have the ability of solar light to reflect, which can effectively control the surface temperature of the coating system, weaken the heat absorption of the coated object, and provide a reflection and heat insulation effect. The ceramic hollow microbeads are added to the coating to further block the residual solar radiant energy that penetrates into the wall. It is a thin single hollow sphere, which is similar to the double-layer glass effect and has heat-reflecting thermal insulation properties. The layer further reduces the heat buildup, the heat of the coated object is greatly reduced to the surrounding environment, the heat insulation performance of the paint is greatly improved, and the overall heat insulation effect of the paint is more obvious.

2. The addition of gelling agent can effectively improve the workability, agitation, transportability, anti-sinking property, particle crushing resistance and overall storage stability of the coating itself, and can also greatly improve the elasticity and flexibility of the coating.

3. The combination of water-based acrylic copolymer dispersion, nano-infrared reflective pigment CICP, heat-insulating powder, modified bentonite, ceramic hollow micro-beads and natural colored sand has a synergistic effect, and the aqueous acrylic copolymer dispersion can be In addition to improving the overall performance of the final coating, it can also interact with heat-insulating powder, modified bentonite, nano-infrared reflective pigment CICP, ceramic hollow micro-beads, natural colored sand and functional additives during granulation. The particles bulge outward to form a space effect similar to "double glazing", thereby improving the reflection heat insulation effect of the coating.

The invention is further clarified by the specific examples and comparative examples of the invention mentioned below, but they are not intended to limit the invention. Portions of the specific embodiments and comparative examples that are not described in detail are obtained using prior art, conventional techniques, and industry standards.

Unless otherwise indicated, the technical means employed in the examples are conventional means well known to those of ordinary skill in the art, and the reagents and products employed are also commercially available. The source and trade name of the reagents used are listed on the first appearance when they are necessary to list their constituents.

The percentages used in the present invention are by weight unless otherwise indicated.

Example 1

Solar light heat reflection insulation water-filled sand colorful environmentally friendly coating formula: The gel solution comprises a gel solution, a gel solution, a granulation base paint and a finished paint. The colloidal solution comprises the following components by weight: 100 parts by weight of tap water, 2 parts by weight of a crosslinking stabilizer, and a protective rubber powder 8 Parts by weight; the gel solution comprises the following components by weight: 98 parts by weight of tap water, 2 parts by weight of a gelling agent; the granulation base lacquer comprises the following components by weight: 200 parts by weight of tap water 2 parts by weight of the inorganic thickener, 8 parts by weight of the wetting and dispersing agent, 6 parts by weight of the antifoaming agent, 4 parts by weight of the film forming agent, 70 parts by weight of the heat insulating powder, 30 parts by weight of the nano-sized CICP pigment, and titanium white powder 10 Parts by weight, modified bentonite 6 parts by weight, pH adjuster 1 part by weight, preservative 2 parts by weight, antifreeze stabilizer 5 parts by weight, aqueous acrylic copolymer dispersion (HX2802) 280 parts by weight, natural colored sand 60 parts by weight 100 parts by weight of the ceramic hollow microspheres, 120 parts by weight of the colloidal solution, 90 parts by weight of the gel solution; the finished lacquer comprises the following components by weight: 200 parts by weight of the aqueous acrylic copolymer dispersion (HX2802), 100 parts by weight of water, 12 parts by weight of a film-forming agent, 13 parts by weight of propylene glycol, 0.5 parts by weight of an antifoaming agent, 600 parts by weight of a particle varnish (each color), 2 parts by weight of a preservative, and 3 parts by weight of a thickener.

Solar light heat reflection insulation water-filled sand colorful environmentally friendly paint production method, including the following steps: 1, colloidal solution preparation: 100 parts by weight of tap water and 2 parts by weight of crosslinking stabilizer in the paint tank, while stirring Stirring with 11kw high-speed variable frequency mixer, the speed of the mixer is 1500 rpm, stirring until completely dissolved in tap water, adding 8 parts by weight of protective rubber powder, stirring at the same speed until the aqueous solution is fully dissolved to a transparent and clear shape, stirring for about 20 minutes. 2; gel solution preparation: 100 parts by weight of tap water and 2 parts by weight of gelling agent in another paint tank, while stirring, the speed of the mixer is 1600 rpm, stirring until the aqueous solution is fully dissolved, about 12 3 minutes, granulation base paint preparation: 200 parts by weight of tap water in a new paint tank, 1200 rpm with a high-frequency mixer, 2 parts by weight of inorganic thickener, and dispersed until no The granules were stirred for about 6 minutes, and then 8 parts by weight of the dispersing agent, 6 parts by weight of the antifoaming agent, 4 parts by weight of the film forming agent, 2 parts by weight of the sterilizing agent, 1 part by weight of the pH adjusting agent, and the like. 2 parts by weight of the humic agent, 5 parts by weight of the antifreeze stabilizer, and then added 6 parts by weight of the modified bentonite, 70 parts by weight of the heat insulating powder, 30 parts by weight of the nano-sized CICP pigment, and 10 parts by weight of the titanium white powder. The stirring speed is increased to 2200 rpm and the high speed is dispersed to fineness. 30 um, the stirring time is about 25 minutes, and then 60 parts by weight of natural colored sand, 100 parts by weight of ceramic hollow microspheres, and 280 parts by weight of aqueous acrylic copolymer dispersion (HX2802) are added while stirring, and then the stirring speed will be 900 rpm. Minutes until uniform dispersion, about 20 minutes of stirring; 4. Granulation process: 100 parts by weight of 1 part of colloidal solution is put into a new paint-making tank, and then 400 parts by weight of 3 parts of granulation base paint is put, and after standing for 10 minutes, according to The size of the desired color granules is uniformly granulated by a mesh of different meshes, and then 90 parts by weight of the gel solution is added, and the particles are completely wrapped by the gel solution for 25 minutes; 5. Finished paint Preparation: 100 parts by weight of tap water is put into a new paint tank, the speed of the mixer is 600 rpm, 12 parts by weight of a film-forming agent, 13 parts by weight of propylene glycol, 0.5 parts by weight of antifoaming agent, and 2 parts by weight of preservative are added with stirring. 200 parts by weight of aqueous acrylic copolymer dispersion (HX2802), after mixing evenly, use special dispersing disc (dispersion disc with low shear force, such as stick type or paddle type), and then add various desired colors to make particle paint 600 Parts by weight Then, using 3 parts by weight of the thickener to adjust the viscosity to 70 ku, the package can be discharged.

The construction method of solar light heat reflection heat insulation water-filled sand colorful environmental protection paint is as follows: 1. Preparation: Sunlight heat reflection heat insulation water-filled sand colorful environmental protection paint does not need to add water, can be sprayed directly, using air spray method; firstly the paint Before spraying, there should be a corresponding primer as a matching, such as closed primer, putty, water-based engineering primer, etc.; if there are oil stains, dust and dirt on the painted surface, it must be removed with wire brush or sandpaper first, if there is honeycomb Unevenness such as cracks, hollow drums, etc. should be repaired with external wall putty first, and then dried before construction. Secondly, the window sill, door edge, trees and certain grounds should be covered with plastic film before construction. 2. Spray the paint: spray the paint evenly with a special spray gun (one shot is colorful); Attention should be paid to the matching of the air pressure and the nozzle diameter so that it can be evenly coated. It is necessary to first test the appearance of the coating film on the caliber of the spray gun, air pressure, etc., and then spray a large amount. The spray gun should be kept at a certain speed when spraying. Degree, a certain distance, nozzle and spray surface should be parallel. The finishing position of the spraying should be at the jointing point. When spraying, it must be sprayed when it is not dry. If it is dried and then sprayed, it will easily produce fine particle overlap, which will affect the appearance. The same size and area is best to be sprayed once. Try to make the base surface spray once when it is not dry.

Example 2

The process of this embodiment is basically the same as that of Embodiment 1, and the adjustment of the formulation is shown in Table 1.

Example 3

The process of this embodiment is basically the same as that of Embodiment 1, and the adjustment of the formulation is shown in Table 1.

Comparative example 1

The formulation ratio of this comparative example was substantially the same as that of Example 1, but the preparation method did not have a step of preparing a "gel solution", but directly added 3 parts by weight of a gelling agent to the granulation base paint.

Comparative example 2

The process of this comparative example is basically the same as that of the first embodiment. The adjustment of the formulation ratio is shown in Table 1, and the major difference is that no thickener is added to the finished paint.

Comparative example 3

The process of this comparative example is basically the same as that of Comparative Example 1, and the adjustment of the formulation ratio is shown in Table 1.

Table 2 shows the performance test results obtained in Examples 1 to 3 and Comparative Examples 1 to 3; For the test basis and standard of each item, please refer to Table 3.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and thus the equivalent changes made by the scope of the present invention remain within the scope of the present invention.

Claims (10)

The utility model relates to a solar energy heat reflecting heat insulation water-sand sand colorful environmental protection paint, which is formed by four stages of a colloid solution, a gel solution, a granulation base paint and a finished paint. The specific components and weight parts of each part are as follows: 1. Colloidal solution : 90-100 parts of tap water, 2 parts of cross-linking stabilizer, and 7-8 parts of protective rubber powder; 2. Gel solution: 90-100 parts of tap water and 2-3 parts of gelling agent; 3. Granulation base paint: 200-250 parts of tap water, 2-3 parts of inorganic thickener, 6-10 parts of wetting and dispersing agent, 4-9 parts of antifoaming agent, 3-5 parts of film forming agent, 60-80 parts of heat insulating powder, modified 5-10 parts of bentonite, 9-12 parts of auxiliary agent, 250-300 parts of aqueous acrylic copolymer dispersion, 50-80 parts of natural colored sand, 90-120 parts of ceramic hollow microspheres, nano-infrared reflective pigment CICP 40- 50 parts, 100-150 parts of colloidal solution, and 80-100 parts of gel solution; and 4. Finished paint: 200-220 parts by weight of aqueous acrylic polymer dispersion, 100-150 parts by weight of tap water, film-forming agent 10-14 Parts by weight, 12-16 parts by weight of propylene glycol, 0.5-1 part by weight of antifoaming agent, 2-3 parts by weight of preservative, 3-5 parts by weight of thickener, and 600-650 parts by weight of granules, of which finished product The particles are made of lacquer paint for the base paint after granulation by granulation. The solar thermal reflection heat insulation water-sand sand colorful environmental protection coating according to claim 1, wherein the crosslinking stabilizer is sodium pyrophosphate. The solar thermal reflection heat insulation water-sand sand colorful environmental protection coating according to claim 1, wherein the gelling agent is a polyacrylic cellulose derivative. The solar thermal reflection heat insulation water-sand sand colorful environmental protection coating according to the first aspect of the patent application, wherein the inorganic thickener is a modified montmorillonite thickener. Solar thermal reflection heat insulation water-filled sand colorful ring as described in claim 1 a protective coating, wherein the wetting and dispersing agent is selected from any one or more selected from the group consisting of sodium polyacrylate, trisodium phosphate, decanoate, alkylphenol ethoxylate, and alkyl aryl sulfonate; The foaming agent is selected from any one or more of a modified polysiloxane and an organic alcohol compound; and the film forming agent is selected from the group consisting of polyester alcohol, polyvinyl alcohol, sodium alginate, and xanthan gum. One or two or more. The solar thermal reflection heat insulation water-sand sand colorful environmental protection coating according to claim 1, wherein the heat insulation powder is a combination of any one or more of alumina, magnesia, titanium oxide, and zinc oxide; The modified bentonite is modified by modifying the calcium-based bentonite with 8-hydroxyquinoline as a modifier, and preparing the modified bentonite; and the auxiliary agent is a multifunctional pH regulator, a preservative and a frost-resistant stabilizer. Any combination of one or more. The solar thermal reflection heat insulation water-sand sand colorful environmental protection coating according to claim 1, wherein the ceramic hollow microsphere is prepared from a titanium-boron silicate raw material, and the average particle diameter is 16-20 um. The bulk density is >180 Kg/m ³ , the sphericity is >95%, and the compressive strength is >500 kPa. For example, the solar thermal reflection heat insulation water-sand sand colorful environmental protection coating according to the first aspect of the patent application, wherein the nano-level infrared reflective pigment CICP is rutile titanium dioxide or pemont nano-composite inorganic pigment CICP Any one or two or more. The invention relates to a method for producing a solar thermal reflection heat insulation water-sand sand colorful environmental protection paint according to any one of claims 1 to 8, which comprises the following steps: preparation of a colloidal solution: stirring under one Add 90-100 tap water to the first mixing vessel 2 parts by weight of the crosslinking agent and the crosslinking stabilizer. After the crosslinking agent is completely dissolved in the tap water, 7-8 parts by weight of the protective rubber powder is added, and the mixture is stirred until the aqueous solution is sufficiently dissolved to a transparent and clear state; preparation of the gel solution: stirring Adding 90-100 parts by weight of tap water and 2-3 parts by weight of gelling agent in a second mixing container, stirring until the aqueous solution is fully dissolved; preparation of granulation base paint: adding tap water 200-250 in a third mixing container重量份份。 Adding 2-3 parts by weight of the inorganic thickener to the particles without stirring, and then adding 6-10 parts by weight of the wetting dispersing agent, 4-9 parts by weight of the antifoaming agent, and 3-5 parts by weight of the film forming agent. And 13-16 parts by weight of the auxiliary agent, adding 5-10 parts by weight of modified bentonite, 60-80 parts by weight of heat-insulating powder, and 50 parts by weight of nano-infrared reflective pigment CICP40-50, stirring uniformly, and dispersing at high speed After the predetermined fineness, 50-80 parts by weight of natural colored sand, 90-120 parts by weight of ceramic hollow microspheres, and 250-300 parts by weight of aqueous acrylic copolymer dispersion are added under stirring, and the mixture is uniformly dispersed and stopped; granulation Process: adding a colloidal solution 10 to the third mixing vessel 0-150 parts by weight and 30-50 parts by weight of tap water, and then put into 400-500 parts by weight of the granulation base paint, and after standing for 10-15 minutes, uniform granulation is carried out, and then 80-100 parts by weight of the gel solution is added to the particles. Uniformly wrapped by the gel solution; and preparation of the finished lacquer: 100-150 parts by weight of tap water is added to a fourth mixing vessel, 200-220 parts by weight of the aqueous acrylic copolymer dispersion is added under stirring, and then a film forming agent 10- 14 parts by weight, 0.5-1 part by weight of antifoaming agent, 10-13 parts by weight of propylene glycol, and 2-3 parts by weight of preservative, after stirring uniformly, 600-650 parts by weight of granule varnish is added, and finally thickener 3 is used. -5 parts by weight adjusted the viscosity of the system to 70 ku-85 ku. The production method of the solar thermal reflection heat insulation water-sand sand colorful environmental protection coating according to claim 9 of the patent scope, wherein the mixing container is a paint tank, and the stirring is performed by using a 11-15 KW high-speed frequency conversion mixer, and when the colloidal solution is prepared, The stirring speed is 1500-2000 rpm; the stirring time after adding the protective rubber powder is 15-20 min; when the gel solution is prepared, the stirring speed is 1500-2000 rpm, the stirring time is 10-15 min; or, the granulation basis is prepared. When lacquering, the stirring speed of tap water and inorganic thickener is 1000-1500 rpm, dispersion is 5-8 min until no granules, and the stirring speed is increased to 2000 after adding modified bentonite, heat-insulating powder and nano-infrared reflective pigment CICP. -2500 rpm, high speed dispersion to a predetermined fineness 30 μm, stirring time is 25-30 min, the speed of the aqueous acrylic copolymer dispersion is 800-1000 rpm, and then stirred for 20-25 min.