TW201934678A - Sunlight heat-reflection thermal insulation sand-in-water multi-color eco-friendly paint and preparation method thereof capable of providing a decorative surface with a three-dimensional effect - Google Patents

Abstract

Disclosed are a sunlight heat-reflection thermal insulation sand-in-water multi-color eco-friendly paint and a preparation method thereof. The sand-in-water multi-color eco-friendly paint is formed by four stages including a colloid solution stage, a gel solution stage, a granulation base paint stage and a finished paint stage, and adopts aqueous acrylic copolymer dispersion as the main body for forming a paint film after being naturally dried, which has good weather resistance, stain resistance, water resistance, chemical resistance, self-cleaning property, safety and environmental protection, and wide application range. Furthermore, the addition of gel agent may effectively improve the workability, agitation, transportation, settling prevention, particle crushing resistance and overall storage stability properties of the paint itself. In addition, by adding hollow ceramic microbeads, the paint may further block the residual sunlight radiation energy penetrating into the wall, since the paint itself is a single hollow sphere with a thin wall, which produces an effect similar to a double-layered glass having the heat-reflection thermal insulation property, thereby greatly improving the thermal insulation performance of the paint.

Description

Sunlight, heat reflection, heat insulation, water-in-sand, water-sand-sand colorful environmental protection coating and preparation method thereof

The invention relates to the technical field of thermal insulation coatings for buildings, and particularly discloses a colorful environmentally-friendly paint with sunlight, heat reflection, thermal insulation, water-in-sand and water-sand, and a preparation method thereof.

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

The paint that can be used to insulate heat on the construction surface is called heat insulation paint. It is divided into transparent heat insulation paint and non-transparent heat insulation paint according to the application. According to the heat insulation mechanism, heat insulation can be used. Insulation coatings are divided into three categories: barrier insulation coatings, reflective insulation coatings and radiation insulation coatings.

Zhangzhou Sandeli Paint & Coating Co., Ltd. has disclosed the sun light, heat reflection, heat insulation, water-in-water, colorful environmental protection coating and its production method in Chinese Patent No. CN104177940A. 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, 7-8 parts of protective rubber powder; 2. Granulating base paint: tap water 400- 450 parts, wetting and dispersing agent 6-10 parts, defoaming agent 4-9 parts, film-forming agent 5-8 parts, propylene glycol 10-15 parts, heat insulating powder 80-100 parts, cellulose 5-10 parts, 13-16 parts of agent, 100-150 parts of colloidal solution, 250-300 parts of elastic polymer emulsion, 40-50 parts of infrared reflective pigment; 3. Latex finished paint: 200-220 parts of elastic polymer emulsion, 250-290 parts of tap water 10-10 parts of film-forming agent, 8-10 parts of propylene glycol, 0.5-1 part of defoaming agent, 480-510 parts of particle-forming paint, and 3-5 parts of additive; among them, the particle-forming paint described in latex finished paint is The paint obtained after granulating the base paint. This coating can reflect heat from sunlight and can insulate heat. But its type is still "water-in-water" coating, which is difficult to form a three-dimensional decorative surface.

In order to meet the ever-increasing requirements for interior and exterior wall coatings, "sand-water-in-water" coatings are constantly emerging. Chinese Patent No. CN 106590425A discloses a colorful water-like sand-wrapped coating on lychee surface, its preparation method and application on thermal insulation board, including the following ingredients: colorful base material, water-based rheological additive solution, coated glaze and quartz sand ; The weight ratio of the colorful base material, aqueous rheological additive solution, coated glaze and quartz sand is 3: 2: 3: 2. The sand-in-water colorful coating has strong sand-covering ability, good three-dimensional effect and texture Good features. Chinese Patent No. CN107163721A discloses a water-in-sand sand-like imitation stone paint, which is composed of water, cellulose, dispersant, defoamer, ethylene glycol, fungicide, titanium dioxide, sulfuric acid Barium, multi-functional additives, film-forming additives, acrylic emulsion, natural sand, tourmaline powder are mixed in proportion to make sand-in-water paint. The water-in-sand wall paint made according to the scheme of the invention has the effect of natural sand texture and can release negative ions. Chinese Patent No. CN107056146A discloses a low-cost, simple-to-operate, stable viscosity water-in-sand colorful coating, including protective glue solution, sand-in-water colorful coating, white base paint, basic color paint, continuous phase of sand-in-water colorful paint, Sand-wrapped colorful paint preparation steps.

However, the above-mentioned patent technology has the following problems: first, its production method is to first prepare a 5-10% concentration of a protective gum solution, then prepare a white sand-based base paint, and then add color paste to color according to the design requirements, and finally color The paint is granulated and the manufacturing process is complicated. In addition, the stirring and dispersing equipment used in the granulation causes the particle size to be not uniform during granulation, which affects the appearance and application performance of the coating film. Secondly, the coating uses only a few reflective pigments to reflect its function of reflection and heat insulation. It cannot achieve color diversification. The sand used in the coating is ordinary white sand, which makes it effective in blocking the residual solar radiation. Poor, unable to further block the residual solar radiation energy penetrating into the wall, which greatly reduces the effect of paint reflection and heat insulation, and does not have the function of heat preservation.

The purpose of the present invention is to provide a colorful environmental protection coating which can form a three-dimensional decorative surface, has solar light emission heat insulation, can efficiently maintain heat, and has simple manufacturing procedures.

Another object of the present invention is to provide a method for preparing colorful environmentally-friendly coatings with sunlight, heat reflection, heat insulation, and water-in-sand sand. The manufacturing process is simple, and it can be mass-produced for industrial production. The product can form a three-dimensional decorative surface with solar light emission. Insulation and efficient insulation.

The present invention provides a colorful environmentally-friendly paint with sunlight, heat reflection, heat insulation, water-in-sand, and water, which is formed in four stages: colloid solution, gel solution, granulated base paint, and 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. Granulating 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 defoaming agent, 3-5 parts of film-forming agent, 60-80 parts of heat insulation powder, modified 5-10 parts of bentonite, 9-12 parts of additives, 250-300 parts of water-based acrylic copolymer dispersion, 50-80 parts of natural colored sand, 90-120 parts of ceramic hollow microbeads, nano-scale infrared reflective pigment CICP 40- 50 parts, colloidal solution 100-150 parts, gel solution 80-100 parts; 4. 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-forming agent , 12-16 parts by weight of propylene glycol, 0.5-1 parts of defoaming agent, 2-3 parts by weight of preservatives, 3-5 parts by weight of thickener, 600-650 parts by weight of particle-forming paint, of which the finished product The granulated paint described in the paint is the paint after the granulated base paint is granulated.

Preferably, the crosslinking stabilizer is sodium pyrophosphate, which can ensure that the colloid maintains fluidity; the protective colloidal powder is lithium lithium silicate, which can improve the suspension, thixotropy and chemical stability of the colloid.

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

This kind of gelling agent is a kind of natural biologically active, water and oil retention active additive, which can effectively improve the paint's own workability, agitation, transportability, anti-settling property, particle crush resistance and overall storage stability. The elasticity and flexibility of coatings. Natural colored sand is added to the coating. Due to its inherent weight and hardness, sand particles are easy to sink in the coating and collisions between the sand particles are easy to occur during construction, transportation, and mixing. It collides with each other and breaks or breaks. The use of a gelling agent to make a gel solution is to improve the anti-settling property of the coating and the crush resistance of its particles. However, if the gelling agent is directly added to the granulating base paint, The effect is not obvious. After the experimental performance effect verification of the present invention, the gel solution is separately prepared and then added to the granulating base paint, the coating has excellent anti-settling properties and the anti-crushing effect of the particles.

Preferably, the inorganic thickener is a modified montmorillonite thickener, which is a type of thixotropic gel mineral that swells upon water absorption. Its particle size is fine, and it can be easily removed by conventional high-speed dispersion equipment. It is dispersed in an aqueous system, and its special gel network structure enhances the coating performance, excellent anti-sag resistance, excellent suspension and directional alignment properties. Compared with hydroxyethyl cellulose, it has excellent water resistance. And thixotropic lubricity, used to replace hydroxyethyl cellulose, has the functions of thickening, water retention, suspension, lubrication, orientation, and overcomes the shortcomings of cellulose such as mildew, degradation, poor 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 Besto BS-868.

Preferably, the wetting and dispersing agent is selected from any one or two or more of sodium polyacrylate, trisodium phosphate, silicate, alkylphenol polyoxyethylene ether, and alkylaryl sulfonate. The amphiphilic molecular structure on the surface causes qualitative adsorption in the direction of the interface to reduce the surface tension of the liquid. Its role is to disperse the fine pigment and filler in the base material.

The defoaming agent is selected from any one or two or more of a modified polysiloxane and an organic alcohol compound.

The film-forming agent is selected from any one or two or more of polyester alcohol, polyvinyl alcohol, sodium alginate, and xanthan gum. It is also known as a coalescing aid, which can promote the plastic flow and elastic deformation of polymer compounds and improve the polymerization. Substance that can make the coating film harden in a wide range of application temperature range.

Preferably, the thermal insulation powder is any one or a combination of alumina, magnesia, titania, and zinc oxide. It has the characteristics of low tinting power, high solar reflectance, etc. It has little effect on the original color when applied to a color system, and improves the reflection and heat insulation effect of sunlight.

Preferably, the modified bentonite uses 8-hydroxyquinoline as a modifier to modify calcium-based bentonite to prepare modified bentonite and bentonite-modified deep-processed products, thereby generating a new hydrophobic and lipophilic substance. Organic bentonite complex, making the particles in the coating hydrophobic no longer compatible.

Preferably, the auxiliary agent is a combination of any one or more of a multifunctional pH regulator, a preservative, an antifreeze stabilizer, and a thickener. Among them, the thickener is an emulsion-type thickener of a hydrophobically modified acrylate cross-linked copolymer, and has the dual advantages of water-soluble macromolecules and the formation of an associative network, a high thickening ratio, and a suitable Rheological properties, excellent thickening effect on various emulsion copolymer dispersions and aqueous solution systems, preferably AT-51 from Fuzhou Edite Chemical Technology Co., Ltd.

Adding thickeners to the granulated base paint and finished paint separately has different effects and protective and protective objects. The addition of an inorganic thickener to the granulated base paint is to protect the particles themselves and increase their own. Stability makes the particle function better. The thickener added to the finished latex paint is for the protection and protection of the appearance coating film, which makes the appearance coating function better. The two-way targeted addition can better protect the entire coating system. protection.

Preferably, the preservative refers to a natural or synthetic chemical component that can delay the corrosion of the coating due to microbial growth or chemical changes caused by external factors; it can be benzoic acid and its salts, benzyl alcohol, hydroxyphenyl esters, sorbitan Any one or two or more of acids and p-chloroxylenol. The anti-freezing stabilizer has the effects of preventing frost and storage stability, and is preferably propylene glycol.

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

Preferably, the natural colored sand is processed by multiple processes such as selection, crushing, crushing, grading, packaging, and the like of marble or granite, and has strong abrasion resistance, water resistance, corrosion resistance, non-toxicity, strong adhesion, and color. Gorgeous and other characteristics.

Preferably, the ceramic hollow microbeads are prepared from titanium-borosilicate raw materials, the average particle diameter of which is 16-20um, the bulk density is> 180Kg / m3, the sphericity is> 95%, and the compacted strength is ≥500kPa . The preparation procedure is as follows: first prepare a ceramic precursor water or slurry containing a surfactant and a foaming agent, and then turn the water or slurry into droplets; the droplets form a hollow due to the action of the surfactant and the foaming agent. After drying, it is heated to form ceramic hollow microbeads, which are high strength, inert, and hard. Fine spherical particles, which are light non-metallic multifunctional materials, are standard spherical, loose, good fluidity, hollow, and have a hard shell. It can be directly added to the coating system as a filler, and it is very easy to disperse in water-based material systems. In addition, the coating film formed by curing the coating has heat reflection, heat insulation, sound insulation performance. And has the advantages of light weight, small density, low thermal conductivity, thermal insulation performance, small specific area, high compressive strength, high melting point, high thermal reflectance, small thermal conductivity and thermal shrinkage coefficient, good chemical stability and other advantages; the material also has Excellent thermal insulation effect, non-toxic, self-lubricating, high dispersion and other advantages. It can improve the comprehensive performance of finished paint and improve the machining performance of finished paint.

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

More preferably, the CICP of Nano-grade composite inorganic pigment is selected from YE608 / YE607 titanium nickel yellow, BR602 / BR604 titanium chromium yellow, BU612 / BU614 / BU616 cobalt blue, BU716 produced by Nanjing Pemont 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 chromium black, BC812 chromium iron black, BR402 chromium iron brown.

The above-mentioned Peymont nano-scale composite inorganic pigment CICP is a pigment formed by high-temperature calcination mixing, air convection pulverization, and then cutting treatment. It 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 coloring power and hiding power. And after SGS testing, the lead, cadmium, mercury, and hexavalent chromium indicators have reached the EU ROHS directive, in line with Japanese SONY environmental protection standards. It can also effectively improve the solar light and heat reflection efficiency. Use in coatings can reduce the surface temperature of the system, play the role of heat insulation, environmental protection and energy saving, improve the thermal comfort of the environment, and save energy.

The sun light, heat reflection, heat insulation, and water-in-sand colorful environmental protection coating adopts a water-based acrylic copolymer dispersion as a main body and forms a paint film after natural drying, and has good weather resistance, stain resistance, water resistance, and chemical resistance. Ability to maintain color; the addition of functional additives can further improve the performance of coatings, such as storage stability, construction performance, flexibility, and durability of pigment particles. Second, the new type of nanometer infrared reflective pigment CICP and thermal insulation powder are added to the coating, so that the coating has the ability to reflect sunlight, which can effectively control the surface temperature of the coating system, and has the effects of reflection insulation, environmental protection and energy saving. . Third, ceramic hollow microbeads are used in the coating, which are thin single hollow spheres, similar to the double-layer glass effect, with heat reflection and heat insulation properties, which can further block the residual solar radiation energy penetrating into the wall and can Insulation greatly improves the thermal insulation performance of coatings, improves the thermal comfort of the environment, and saves energy. Fourth, different metals in the nano-scale infrared reflective pigment CICP can be formed into different colors after melting at different temperatures in different proportions, and a colored heat-reflective, heat-insulating, and water-in-sand environmental-friendly coating can be formulated to meet the colorful needs of the market and improve the decorative effect. Finally, the coating of the present invention has a good three-dimensional decoration effect, a good paint film perception, and colorful and vivid colors.

The invention also finds that the formula of water-based acrylic copolymer dispersion, nano-infrared reflective pigment CICP, heat-insulating powder, modified bentonite, ceramic hollow microbeads and natural colored sand is used in the raw materials, which has a synergistic effect. The water-based acrylic copolymer dispersion In addition to improving the overall performance of the final coating, it can also interact with thermal insulation powder, nano-scale infrared reflective pigment CICP, ceramic hollow beads and natural colored sand during granulation, so that the particles bulge outward and form The hollow effect similar to "double-layer glass", coupled with the ceramic hollow microbeads themselves are thin single hollow spheres, with heat reflection and heat insulation performance, thereby further improving the effect of paint reflection and heat insulation, and has a good three-dimensional The paint film has good sensory performance. Secondly, when sunlight is irradiated on the coating, the nano-scale infrared reflective pigment CICP and heat insulation powder in the coating have the function of reflection and heat insulation, which can improve the efficiency of sunlight heat reflection and heat insulation, reduce the surface temperature of the coating system, and weaken The heat absorption of the coating, and the coating contains ceramic hollow beads, which can further block the residual solar radiation energy penetrating into the wall, so that the coating further reduces heat build-up, and the heat emitted by the coating to the surrounding environment is greatly reduced. The thermal insulation effect is more obvious, which fundamentally reduces the use rate of air conditioners, and at the same time can keep heat in winter, reduces the use of heat insulation heat sources, and greatly reduces energy consumption.

In addition, the sunlight, heat reflection, heat insulation, and water-in-sand colorful environmental protection coating of the present invention can be used with water-based architectural coatings, such as interior and exterior wall putty, crack-resistant mortar, interior and exterior wall primer, interior and exterior wall coatings, etc. Radiant energy and enhanced reflective insulation effect can be used with reflective insulation coatings such as exterior insulation putty.

The present invention also provides a method for producing the above-mentioned sunlight, heat reflection, heat insulation, water-in-sand-water-sand colorful environmentally-friendly paint, including the following steps:

1. Preparation of colloidal solution: Add 90-100 parts by weight of tap water and 2 parts by weight of cross-linking stabilizer into the first mixing container under stirring. After the cross-linking stabilizer is completely dissolved in the tap water, add protective rubber powder 7-8 By weight, it is sufficient to stir until the aqueous solution is sufficiently dissolved to be transparent and clear; after preparation, the solution is best used after being left in a dry place at normal temperature for 24 hours.

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

3. Preparation of granulated base paint: Add 200-250 parts by weight of tap water in the third mixing container, add 2-3 parts by weight of inorganic thickener under stirring to disperse without particles, and then add wetting dispersant 6-10 in order. Parts by weight, 4-9 parts by weight of defoaming agent, 3-5 parts by weight of film-forming agent, and 13-16 parts by weight of auxiliaries. After mixing, add 5-10 parts by weight of modified bentonite and 60-80 parts by weight of heat-insulating powder. 4. Nano-infrared reflective pigment CICP 40-50 parts by weight, stir evenly, disperse to a predetermined fineness at high speed, add 50-80 parts by weight of natural colored sand, 90-120 parts by weight of ceramic hollow microbeads, and water-based acrylic copolymer under stirring. The dispersion is 250-300 parts by weight.

4. Granulation process: Add 100-150 parts by weight of colloidal solution, 30-50 parts by weight of tap water in the third mixing container, and then add 400-500 parts by weight of the granulating base paint. Allow to stand for 10-15 minutes for uniform granulation , And then add 80-100 parts by weight of the gel solution until the particles are evenly 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 film-forming agent and defoaming agent are added. 0.5-1 parts by weight, 10-13 parts by weight of propylene glycol, 2-3 parts by weight of preservatives, and after stirring, add 600-650 parts by weight of particle-forming paint, and finally use 3-5 parts by weight of thickener to adjust the viscosity of the system Just adjust to 70ku-85ku.

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

Preferably, when preparing the granulated base paint, the stirring speed of the tap water and the inorganic thickener is 1000-1500 revolutions per minute, and the dispersion speed is 5-8 minutes to no particles. After adding the powder, the stirring speed is increased to 2000-2500 revolutions per minute. Disperse at a high speed to a predetermined fineness, that is, ≤ 30 μm, stirring time is 25-30 minutes, when the aqueous acrylic copolymer dispersion is added, the rotation speed is 800-1000 revolutions per minute, and then stirring is 20-25 minutes.

Preferably, during the granulation process, granulation is performed with sieves of different meshes according to the size of the required colored particles, and the gel solution is added to stand and the particles are completely wrapped by the gel solution for a time of 20-30 minutes.

Preferably, when preparing the finished paint, the stirring speed is 600-800 revolutions per minute; after the stirring is evenly changed, a dispersion plate is used, and more preferably a low shear force such as a stick-type or paddle-type dispersion plate. The dispersion plate is You can refer to the applicant's previous Chinese patent application numbers CN201420861869.0 and CN201420862077.5 for the utility model patent technology.

The above-mentioned method for constructing the colorful environmentally-friendly coatings of sunlight, heat reflection, heat insulation, and water-in-sand-water sand coating includes the following steps:

1. Preparations:

Sunlight, heat reflection, heat insulation, water-in-sand sand, and colorful environmentally friendly coatings can be directly sprayed for construction without air, using air spraying method. First, the coating must be equipped with a corresponding primer, such as a closed primer, putty, and water-based engineering primer. If there are oil stains, dust, dirt and other debris on the painted surface, you must first remove them with a wire brush or sandpaper. If there are irregularities such as honeycombs, cracks, hollow hollows, etc., you should first use the exterior wall putty to repair the surface and dry it. Can be constructed. Secondly, the windowsill, door edges, trees and some floors should be covered with plastic film before construction;

2. Spray the coating:

Use a special spray gun to uniformly spray the paint (one shot is colorful); pay attention to the combination of air pressure and nozzle diameter during construction to make it evenly coated. You need to test the spray gun diameter and air pressure first for the appearance of the coating film. Then spray a lot. When spraying, the spray gun needs to maintain a certain speed and distance, and the nozzle and the spray surface must be kept parallel. The finishing point of the spraying is preferably at the seam. When continuing to spray, it must be sprayed before drying. If it is dried and then sprayed on, it is easy to cause fine particles to overlap, which will affect the appearance; the same size area is best to be sprayed once. Try to allow the base surface to be sprayed once without drying.

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

The beneficial effects of the present invention are:

1. Water-based acrylic copolymer dispersion is used as the main body. After forming the paint film after natural drying, it has good weather resistance, stain resistance, water resistance, chemical resistance, self-cleaning, safety and environmental protection, and a wide range of applications. ; The addition of functional additives can further improve the performance of coatings, such as storage stability, construction performance, flexibility, and durability of pigment particles.

Adding a new type of nano-infrared reflective pigment CICP and thermal insulation powder to the coating, so that the coating has the ability to reflect sunlight, can effectively control the surface temperature of the coating system, weaken the heat absorption of the coating, and play a reflective insulation effect. Ceramic hollow microbeads are added to the coating, which can further block the residual solar radiation energy penetrating into the wall. It is itself a thin hollow single sphere, similar to the double-layer glass effect, and has heat reflection and heat insulation properties. The layer further reduces heat build-up, and the heat emitted from the coating to the surrounding environment is greatly reduced, greatly improving the thermal insulation performance of the coating, and the overall thermal insulation effect of the coating is more obvious.

2. The addition of gelling agent can effectively improve the construction, agitation, transportability, anti-settling, particle crush resistance and overall storage stability of the coating itself. It can also greatly improve the elasticity and flexibility of the coating.

3. The formula combination of water-based acrylic copolymer dispersion, nano-scale infrared reflective pigment CICP, heat insulation powder, modified bentonite, ceramic hollow microbeads and natural colored sand has a synergistic effect. In addition to the water-based acrylic copolymer dispersion, In addition to improving the overall performance of the final coating, it can also interact with thermal insulation powder, modified bentonite, nano-scale infrared reflective pigment CICP, ceramic hollow beads, natural colored sand and functional additives during granulation, making The particles protrude outward, forming a space-like effect similar to "double-layer glass", thereby improving the effect of paint reflection, heat insulation and heat preservation.

The present invention can be further clearly understood through the following specific examples and comparative examples of the present invention, but they are not intended to limit the present invention. The parts that are not described in detail in the specific examples and comparative examples are obtained by using the existing technology, known technical means, and industry standards.

Unless otherwise specified, the technical means used in the examples are conventional means well known to those having ordinary knowledge in the art, and the reagents and products used are also commercially available. The source of the reagents used, and the names of the components whose components are necessary to be listed, are indicated at the first appearance.

Unless otherwise stated, all percentages used in the present invention are weight percentages.

Example 1

The formula of colorful environmentally friendly coatings with sunlight, heat reflection, heat insulation, and water-in-sand sand:

It consists of a colloid solution, a gel solution, a granulated base paint, and a finished paint. The colloid solution includes the following parts by weight: 100 parts by weight of tap water, 2 parts by weight of a cross-linking stabilizer, and 8 parts of a protective rubber powder. Parts by weight; the gel solution includes the following parts by weight: 98 parts by weight of tap water, and 2 parts by weight of the gelling agent; the granulated base paint includes the following parts by weight: 200 parts by weight of tap water , 2 parts by weight of inorganic thickener, 8 parts by weight of wetting and dispersing agent, 6 parts by weight of defoaming agent, 4 parts by weight of film-forming agent, 70 parts by weight of heat-insulating powder, 30 parts by weight of nano-grade CICP pigment, and 10 of titanium dioxide Parts by weight, 6 parts by weight of modified bentonite, 1 part by weight of pH adjuster, 2 parts by weight of preservative, 5 parts by weight of antifreeze stabilizer, 280 parts by weight of aqueous acrylic copolymer dispersion (HX2802), and 60 parts by weight of natural colored sand 100 parts by weight of ceramic hollow microbeads, 120 parts by weight of colloidal solution, 90 parts by weight of gel solution; the finished paint includes the following parts by weight: 200 parts by weight of aqueous acrylic copolymer dispersion (HX2802), and 100 tap water 12 parts by weight of film-forming agent 13 parts by weight of propylene glycol, 0.5 parts by weight defoamer, 600 parts by weight of the particles making paint (each color), 2 parts by weight of a preservative, a thickener and 3 parts by weight.

A method for producing colorful environmentally-friendly coatings with sunlight, heat reflection, heat insulation, and water-in-sand sand, including the following steps:

1. Preparation of colloidal solution: Put 100 parts by weight of tap water and 2 parts by weight of cross-linking stabilizer into the paint tank while stirring. Stir with a 11kw high-speed variable frequency mixer. The speed of the mixer is 1500 rpm. Stir until completely dissolved. Add 8 parts by weight of protective gum powder after tap water, and stir at the same speed until the aqueous solution is fully dissolved to a transparent and clear state, and it can be stirred for about 20 minutes;

2. Preparation of gel solution: Put 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 revolutions per minute. Stir until the aqueous solution is fully dissolved, about 12 minutes. ;

3. Preparation of granulated base paint: Put 200 parts by weight of tap water in a new paint tank with a high-frequency mixer at a speed of 1200 rpm, add 2 parts by weight of inorganic thickener while stirring, and disperse until there are no particles. Stir about 6 minutes, and then wetting 8 parts by weight of dispersant, 6 parts by weight of defoaming agent, 4 parts by weight of film-forming agent, 2 parts by weight of bactericide, 1 part by weight of pH adjuster, 2 parts by weight of antiseptic, and antifreeze stabilizer 5 parts by weight, followed by 6 parts by weight of modified bentonite, 70 parts by weight of thermal insulation powder, 30 parts by weight of nano-scale CICP pigment, and 10 parts by weight of titanium dioxide. After the addition is completed, the stirring speed is increased to 2200 rpm, high speed Disperse to a fineness of ≤ 30um, stirring time is about 25 minutes, and then add 60 parts by weight of natural colored sand, 100 parts by weight of ceramic hollow microbeads, 280 parts by weight of aqueous acrylic copolymer dispersion (HX2802) while stirring, and then stir the rotation speed It will be 900 revolutions per minute until the dispersion is uniform, stirring for about 20 minutes;

4. Granulation process: Put 1 part of colloidal solution in 100 parts by weight in a new paint tank, and then add 3 parts of 400 parts by weight of the granulated base paint. After standing for 10 minutes, use different meshes according to the size of the colored particles. The sieve is uniformly granulated, and then 90 parts by weight of the gel solution are added to the two parts and left to stand until the particles are completely wrapped by the gel solution, and the time can be 25 minutes;

5. Preparation of finished paint: Put 100 parts by weight of tap water in a new paint tank, stir the mixer at 600 rpm, add 12 parts by weight of film-forming agent, 13 parts by weight of propylene glycol, 0.5 parts by weight of antifoam while stirring, anticorrosive 2 parts by weight of agent, 200 parts by weight of water-based acrylic copolymer dispersion (HX2802), stir to a special dispersion plate (low-shear dispersion plate, such as stick type or paddle type) after mixing well, and add various desired colors Make 600 parts by weight of the particle paint, and then adjust the viscosity to 70ku with 3 parts by weight of the thickener, and then the package can be discharged.

The construction method of colorful environmental protection coatings with sunlight, heat reflection, heat insulation and water-in-sand sand is as follows:

1. Preparations:

Sunlight, heat reflection, heat insulation, water-in-sand sand, and colorful environmentally friendly coatings can be directly sprayed for construction without air, using air spraying method. First, the coating must be equipped with a corresponding primer, such as a closed primer, putty, and water-based engineering primer. If there are oil stains, dust, dirt and other debris on the painted surface, you must first remove them with a wire brush or sandpaper. If there are irregularities such as honeycombs, cracks, hollow hollows, etc., you should first use the exterior wall putty to repair the surface and dry it. Can be constructed. Secondly, the windowsill, door edges, trees and some floors should be covered with plastic film before construction;

2. Spray the coating:

Use a special spray gun to uniformly spray the paint (one shot is colorful); pay attention to the combination of air pressure and nozzle diameter during construction to make it evenly coated. You need to test the spray gun diameter and air pressure first for the appearance of the coating film. Then spray a lot. When spraying, the spray gun needs to maintain a certain speed and distance, and the nozzle and the spray surface must be kept parallel. The finishing point of the spraying is preferably at the seam. When continuing to spray, it must be sprayed before drying. If it is dried and then sprayed up, it is easy to cause fine particles to overlap, which will affect the appearance. Try to allow the base surface to be sprayed once without drying.

Example 2

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

Table 1 Formula ratio

Example 3

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

Comparative Example 1

The formulation ratio of this comparative example is basically the same as that of Example 1, but there is no step of preparing a "gel solution" in the preparation method, and 3 parts by weight of the gelling agent is directly added to the granulated base paint.

Comparative Example 2

The process of this comparative example is basically the same as in Example 1. The adjustment of the formulation ratio is shown in Table 1. There is also a big difference in 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 Performance test results

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

Table 3 Physical and chemical index results

The above disclosure is only the preferred embodiments of the present invention, and of course, the scope of patent application of the present invention cannot be limited by this. Therefore, equivalent changes made according to the scope of patent application of the present invention still fall within the scope of the present invention.

Claims (10)

A sun light, heat reflection, heat insulation, and water-in-sand sand colorful environmental protection coating, which includes: formed in four stages of colloid solution, gel solution, granulated base paint and 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. Granulating 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 defoaming agent, 3-5 parts of film-forming agent, 60-80 parts of heat insulation powder, modified 5-10 parts of bentonite, 9-12 parts of additives, 250-300 parts of water-based acrylic copolymer dispersion, 50-80 parts of natural colored sand, 90-120 parts of ceramic hollow microbeads, nano-scale infrared reflective pigment CICP 40- 50 parts, colloidal solution 100-150 parts, gel solution 80-100 parts; 4. 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-forming agent , 12-16 parts by weight of propylene glycol, 0.5-1 parts of defoaming agent, 2-3 parts by weight of preservatives, 3-5 parts by weight of thickener, 600-650 parts by weight of particle-forming paint, of which finished paint The particles are made of lacquer paint that is the basis of granulated granulated paint. According to the first aspect of the scope of the patent application, the solar thermal reflective heat insulation thermal insulation water-in-water sand colorful environmental protection coating, wherein the crosslinking stabilizer is sodium pyrophosphate. According to the first range of the patent application, the solar energy, heat reflection, heat insulation, and water-in-sand colorful environmental protection coatings, wherein the gelling agent is a polyacrylic cellulose derivative, preferably Jinan Best Polymer Chemical Technology Co., Ltd. NJ-1 high-strength structural adhesive. According to the solar thermal reflection heat insulation heat-insulating water-in-sand colorful environmental protection coating according to item 1 of the scope of the patent application, the inorganic thickener is a modified montmorillonite thickener. The sun light, heat reflection, heat insulation, and water-in-sand colorful environmental protection coating according to item 1 of the scope of the patent application, wherein the wetting and dispersing agent is selected from sodium polyacrylate, trisodium phosphate, silicate, alkylphenol polyoxyethylene Any one or more of ether, alkylaryl sulfonate; the defoaming agent is selected from any one or two or more of the modified polysiloxane and organic alcohol compounds; the film-forming agent is selected from Any one or two or more of polyester alcohol, polyvinyl alcohol, sodium alginate, and xanthan gum. According to the solar thermal reflection heat insulation thermal insulation water-in-sand colorful environmental protection coating according to item 1 of the scope of the patent application, wherein the thermal insulation powder is any one or more of alumina, magnesium oxide, titanium oxide, and zinc oxide; The modified bentonite uses 8-hydroxyquinoline as a modifier to modify calcium-based bentonite to prepare modified bentonite. The additive is a multifunctional pH regulator, preservative, antifreeze stabilizer and thickening agent. A combination of any one or more of the agents. According to the first range of the patent application scope, the solar heat reflection heat insulation thermal insulation water-in-water sand colorful environmental protection coating, wherein the ceramic hollow microbeads are prepared from titanium-borosilicate raw materials, and the average particle diameter is 16- 20um, bulk density> 180Kg / m3, sphericity> 95%, simple compression strength≥500kPa. According to the solar thermal reflection thermal insulation thermal insulation water-in-sand colorful environmental protection coating according to item 1 of the scope of patent application, the nano-scale infrared reflective pigment is a rutile-type titanium dioxide or Pemont nano-scale composite inorganic pigment CICP. Any one or two or more. The method for producing a colorful environmentally-friendly coating with sunlight, heat reflection, thermal insulation, water-in-sand, and water-in-sand as described in any one of the claims 1 to 8 includes the following steps: Preparation of a colloidal solution: stirring in a first mixing container Add 90-100 parts by weight of tap water and 2 parts by weight of the cross-linking stabilizer. After the cross-linking stabilizer is completely dissolved in the tap water, add 7-8 parts by weight of the protective rubber powder, and stir until the aqueous solution is fully dissolved until it is transparent. After preparation, the solution is best used after being left in a dry place at room temperature for 24 hours. Preparation of gel solution: Add 90-100 parts by weight of tap water and 2-3 parts by weight of gelling agent in a second mixing container under stirring, and stir until the aqueous solution is fully dissolved. Preparation of granulated base paint: 200-250 parts by weight of tap water is added in a third mixing container, 2-3 parts by weight of an inorganic thickener is added to disperse until no particles are added, and then wetting and dispersing agents are added in order of 6-10 weights. Parts, 4-9 parts by weight of defoaming agent, 3-5 parts by weight of film-forming agent, 13-16 parts by weight of auxiliaries, after mixing, add 5-10 parts by weight of modified bentonite, 60-80 parts by weight of heat-insulating powder, Nano-infrared reflective pigment CICP 40-50 parts by weight, stir evenly and disperse to a predetermined fineness at high speed, add 50-80 parts by weight of natural colored sand under stirring, 90-120 parts by weight of ceramic hollow microbeads, and disperse the aqueous acrylic copolymer The body is 250-300 parts by weight. Granulation process: Add 100-150 parts by weight of colloidal solution, 30-50 parts by weight of tap water, and 400-500 parts by weight of granulating base paint in the third mixing container, and then uniformly granulate after standing for 10-15 minutes. Then add 80-100 parts by weight of the gel solution until the particles are evenly wrapped by the gel solution. Preparation of the finished paint: add 100-150 parts by weight of tap water in a fourth mixing container, and add the aqueous acrylic copolymer dispersion 200 under stirring. -220 parts by weight, then add 10-14 parts by weight of film-forming agent, 0.5-1 parts by weight of defoaming agent, 10-13 parts by weight of propylene glycol, and 2-3 parts by weight of preservative. After mixing well, add particle-forming paint 600 -650 parts by weight, and finally 3-5 parts by weight of the thickener to adjust the viscosity of the system to 70ku-85ku. The production method of colorful environmentally-friendly coatings for sunlight, heat reflection, heat insulation, water-in-sand, and water-sand-sand as described in item 9 of the scope of the patent application, wherein the mixing container is a paint tank, and the stirring is performed by a 11-15KW high-speed variable frequency mixer. The stirring speed is 1500-2000 revolutions per minute; the stirring time is 15-20min after the protective rubber powder is added; when the gel solution is prepared, the stirring speed is 1500-2000 revolutions per minute and the stirring time is 10-15min; or, granulation is prepared In the base paint, the stirring speed of tap water and inorganic thickener is 1000-1500 revolutions per minute, and the dispersion is 5-8 minutes to no particles. After adding powder, the stirring speed is increased to 2000-2500 revolutions per minute, and it is dispersed at high speed to a predetermined fineness. ≤30μm, stirring time is 25-30min, when adding the aqueous acrylic copolymer dispersion, the rotation speed is 800-1000 revolutions per minute, and then stirring 20-25min.