KR102301781B1 - Eco-friendly thermal shield and waterproof paint composition having high elasticity and high performance and construction method for thermal shielding and waterproofing using the same - Google Patents

Abstract

The present invention relates to an eco-friendly, heat-shielding, and waterproofing painting material composition having high elasticity and high functionality, and a heat-shielding and waterproofing painting construction method using the same. The eco-friendly, heat-shielding, and waterproofing painting material composition having the high elasticity and the high functionality includes: 25 to 35 wt% of a composite acrylate resin; 15 to 25 wt% of an ethylene vinyl acetate resin; 10 to 20 wt% of calcium carbonate; 10 to 20 wt% of titanium dioxide; 1 to 10 wt% of a functional pigment; 1 to 10 wt% of a hollow pigment; 1 to 10 wt% of a defoaming agent; 1 to 10 wt% of a dispersant; 1 to 10 wt% of a ceramic-based fungicide; 1 to 10 wt% of a thickener; 0.5 to 2 wt% of an antifoaming agent; 0.1 to 1 wt% of a leveling agent; and balance water, wherein the composite acrylate resin includes a (meth)acrylate mixed resin and porous polymethyl methacrylate in a weight ratio of 1:0.2 to 1, and the functional pigment includes 100 parts by weight of aluminum hydroxide, 50 to 80 parts by weight of silicon dioxide, 1 to 10 parts by weight of magnesium-amino clay, and 1 to 10 parts by weight of strontium calcium oxide. Accordingly, the eco-friendly, heat-shielding, and waterproofing painting material composition having the high elasticity and the high functionality is painted and constructed onto an exterior of a building such as a roof, a rooftop, and an outdoor parking lot, which is formed of various materials such as concrete, a metal, asphalt shingle, a roof tile, a slate, and plastic, with excellent adhesion, so that excellent waterproof performance, crack resistance performance, and heat shielding performance are continuously provided. Therefore, the present invention contributes to a global trend of low-carbon green growth through reduction of carbon emissions and energy consumption, and is eco-friendly because various VOC-related organic solvents are not used.

Description

Eco-friendly thermal shield and waterproof paint composition having high elasticity and high performance and construction method for thermal shielding and waterproofing using the same}

The present invention provides a three-dimensional structure such as a roof, a roof, an outdoor parking lot, etc. made of various materials such as concrete, metal, asphalt shingle, roof tile, slate, and plastic, or a pillar of a solar panel and its fastening means. It is coated with very good adhesion and workability on the building surface, including the building surface, so it can continuously provide excellent waterproof performance, crack resistance performance and heat insulation performance. It is possible to contribute to the improvement of solar power generation efficiency, and it does not use various VOC-related organic solvents, so it relates to an eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality, and a method for constructing a heat-shielding and waterproofing coating using the same. .

In general, waterproof construction is essential to the exterior of buildings such as roofs, rooftops, and outdoor parking lots in order to block moisture or water applied from the external environment. In particular, the roof and roof of a building made of various materials such as concrete, metal, asphalt shingle, tile, slate, and plastic must be able to control not only moisture or water but also heat in order to secure the long-term durability of the building. In addition, in the process of repeating summer and winter in the building, due to freezing or corrosion of infiltration water caused by temperature change, and deterioration by air and light, in severe cases, significant losses such as the need to dismantle important structures were induced. Accordingly, the maintenance of buildings is an important factor.

For waterproofing of such buildings, asphalt waterproofing method, sheet waterproofing method, coating film waterproofing method, urethane waterproofing method, and complex waterproofing method that selectively combine these methods are applied depending on the building’s components, constituent materials, and waterproofing agents depending on the situation. .

More specifically, the asphalt waterproofing method can implement excellent waterproofness, but it is sticky in summer and cracking (cracking) occurs in winter, and requires a complicated process of applying heat and using sand or sheet paper to prevent the flow of asphalt oil. Therefore, the construction was complicated and inconvenient, and there was a problem that the construction cost was high.

The sheet waterproofing method is a method of manufacturing a sheet of synthetic rubber to have a certain thickness and width and bonding it to the waterproofing surface at the construction site to form a waterproofing layer. Although construction has the advantage of being convenient, it is difficult to construct in a complex part of the building structure, the watertightness at the seam between the sheets is poor, and a separate manual operation for watertightness is required.

The coating film waterproofing method mainly uses epoxy, urethane, acrylic resin or asphalt as the main material, but an organic solvent is mixed as a diluent here. However, since VOC and volatile organic solvents such as formaldehyde are used, they are harmful to the human body, have a strong odor, are not environmentally friendly, and have dangerous problems because they are flammable.

Accordingly, a coating film waterproofing method using a water-based paint composition has been developed and used, but although it is less harmful to the human body, adhesion is poor and cracks may occur on other coating films such as asphalt other than concrete, and in summer, due to high temperature, the coating film There was a problem such as the stickiness of the contamination is increased.

In addition, the coating film waterproofing method has advantages in that it has good adhesion to the building surface and has excellent elasticity so that it can maintain waterproofness to some extent when cracking, but most waterproofing agents do not have water vapor permeability, so mold is easy to occur, and the temperature difference according to the season In a large area, the expansion and contraction of the building material due to heat was large, and there was a limit to maintaining the waterproof performance for a long time due to internal and external chemical reactions, which made it difficult to secure continuous durability. Accordingly, the coating film waterproofing method requires maintenance, but there is a problem in that it cannot be completely waterproofed without removing the entire waterproofing film.

On the other hand, in order to install a solar panel on the roof or roof of a conventional building, it is necessary to dismantle the existing roof or roof, or install a separate installation stand on the existing roof or roof. More specifically, in order to fix the conventional solar panel, a method of fixing the base part using a fastening means such as an anchor, a bolt, etc., and erecting a high pole was used. However, the roof perforation by the pillar and its fastening means damages the existing waterproofing film and has a problem of causing water leakage in the building later. Accordingly, when a conventional waterproofing agent is used for waterproofing a building surface including a three-dimensional structure, such as the pillar and its fastening means, elasticity and elongation are very poor, so there is a problem that it is difficult to construct a sealed waterproofing. In addition, since the material of the building and the material of the pillar and the fastening means are different, the adhesion to it is lowered, and there is a problem in that the deterioration of durability becomes more serious after construction.

On the other hand, in order to prevent deterioration of waterproof performance and durability due to exposure to external solar heat, and to more fundamentally protect a building from high-temperature heat, there is an urgent need to research and develop a coating film waterproofing method utilizing heat shielding performance. In other words, by effectively reflecting near-infrared and radiant heat, it suppresses the heating of the atmosphere by preventing heat storage and high temperature of the building during the day, and by reducing the amount of heat stored in the building at night to reduce radiant heat, thereby reducing tropical nights and reducing cooling costs in summer. There is an urgent need to contribute to the global trend of low-carbon green growth by ultimately reducing carbon emissions and energy consumption.

However, the conventional coating film waterproofing method utilizing heat shielding performance is merely a concept that supplements the heat shielding properties of the existing waterproofing agent by applying a separate heat shielding paint on top of the existing waterproofing layer of the urethane coating film. That is, waterproof and heat shielding were separated. In particular, if you apply a thin film-type thermal barrier paint (only top coat) that has a heat-blocking function instead of a thick paint waterproofing agent on an asphalt shingle or plastic roof, you can get a heat-shielding effect in a short period of time, but the waterproofing is not good. As time passes, durability, weather resistance, water resistance, and abrasion resistance rapidly deteriorate due to accelerating deterioration due to solar heat absorption and pollution (soot, fine dust, yellow sand, etc.) The coating film floats up easily and cracks can occur frequently.

Therefore, it contributes to the global trend of low-carbon green growth by reducing carbon emission and energy consumption by improving the environmental conditions of buildings through heat insulation, and at the same time, it has high elasticity and high functionality to ensure continuous waterproof performance, and maintain and In order to make the management efficient and economical, there is an urgent need to develop an eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality and a method for constructing a heat-shielding and waterproofing coating using the same.

Republic of Korea Patent Registration No. 10-1790695 Republic of Korea Patent No. 10-1936730 Republic of Korea Patent Registration No. 10-2207388

The present invention has been devised to solve the above problems, and one embodiment of the present invention is continuously excellent in waterproofing performance, crack resistance performance and An object of the present invention is to provide an eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality capable of providing heat-shielding performance and a method for constructing a heat-shielding waterproofing coating using the same.

Various problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

One embodiment of the present invention is 25 to 35% by weight of a composite acrylate resin, 15 to 25% by weight of an ethylene vinyl acetate resin, 10 to 20% by weight of calcium carbonate, 10 to 20% by weight of titanium dioxide, 1 to 10% by weight of a functional pigment , hollow pigment 1 to 10% by weight, defoaming agent 1 to 10% by weight, dispersing agent 1 to 10% by weight, ceramic-based fungicide 1 to 10% by weight, thickener 1 to 10% by weight, antifoaming agent 0.5 to 2% by weight, leveling agent An eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality comprising 0.1 to 1% by weight and the remaining amount of water,

The composite acrylate resin includes (meth)acrylate mixed resin and porous polymethyl methacrylate in a weight ratio of 1: 0.2 to 1;

The functional pigment includes 100 parts by weight of aluminum hydroxide, 50 to 80 parts by weight of silicon dioxide, 1 to 10 parts by weight of magnesium-aminoclay, and 1 to 10 parts by weight of strontium calcium oxide. A paint composition is provided.

The (meth) acrylate mixed resin is prepared by mixing a surfactant and ion-exchanged water, and raising the temperature while stirring to prepare a first mixture; Methyl (meth)acrylate monomer, hydroxy ethyl acrylate monomer, n-Butyl acrylate monomer, acrylic acid (AA), surfactant and ion-exchange water preparing a second mixture by adding and reacting a pre-emulsion and a polymerization initiator formed therein to the first mixture; after aging the second mixture, adding hydroxylammonium to adjust pH to prepare a third mixture; and adjusting the physical properties by adding a ureido-pyrimidinone compound functionalized with an acrylate group represented by the following Chemical Formula 1 to the third mixture.

[Formula 1]

In the above formula, n is an integer from 1 to 30.

The porous polymethylmethacrylate has a surface coated with polydopamine;

The surface of the porous polymethyl methacrylate coated with polydopamine is mixed with a polymethyl methacrylate (PMMA) polymer and a pluronic polymer in a ratio of 1: 0.1 to 1 by weight and dissolved in an organic solvent to prepare a mixed solution to do; preparing an emulsion by adding and emulsifying the mixed solution to an aqueous solution containing a dopamine solution and a surfactant; evaporating the organic solvent by heating the emulsion; and washing and drying the submerged porous polymethyl methacrylate (PMMA) particles after evaporating the organic solvent.

The magnesium-amino clay is _{dissolved in magnesium chloride hydrate (MgCl 2} ·6H ₂ O) in an ethanol solvent and 3-aminopropyltriethoxysilane is added, but the 3-aminopropyltriethoxysilane is generating a precipitate by adding magnesium (Mg) of the magnesium chloride hydrate to silicon (Si) in a molar ratio of 1: 1 to 1.5; and centrifuging, drying and pulverizing the resulting precipitate to produce magnesium-aminoclay powder;

The strontium calcium oxide is prepared by mixing and stirring the strontium (Sr) nitrate compound and the calcium (Ca) nitrate compound so that the molar ratio of Sr to Ca is 1: 0.8 to 1.2 to prepare a mixed solution, and then the mixed solution is impregnated with starch After that, it may be manufactured by heat treatment at 800 to 1,200 °C.

The eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality further comprises 1 to 10% by weight of a water-soluble urethane resin;

The water-soluble urethane resin is 100 parts by weight of a polyol having a weight average molecular weight of 1,200 to 3,500, 5 to 15 parts by weight of dimethylol propionic acid, 10 to 30 parts by weight of an amphoteric solvent, and 10 to 30 parts by weight of an aliphatic isocyanate compound After reacting, It is prepared by a method comprising the step of neutralizing by adding a neutralizing agent and dispersing in water with ion-exchanged water, the solid content is 7 to 25 wt%, the acid value is 50 to 100 mgKOH/g, and the average particle diameter is 50 to 200 nm it could be

In addition, another embodiment of the present invention is a heat-shielding waterproof coating construction method using the eco-friendly heat-shielding and waterproofing paint composition having the above high elasticity and high functionality,

A pre-treatment step of removing foreign substances attached to the construction target surface; forming a primer layer by applying a primer for enhancing adhesion performance to the pre-treated construction target surface and drying; and coating and drying the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality on the primer layer to form a heat-shielding and waterproofing layer having a thickness of 1 to 5 mm. provides

According to an eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality according to an embodiment of the present invention and a method for constructing a heat-shielding and waterproofing coating using the same, it is made of various materials such as concrete, metal, asphalt shingle, roof tile, slate, and plastic. It has the effect of being able to paint the exterior surfaces of buildings such as roofs, rooftops, and outdoor parking lots with very good adhesion and workability.

In addition, as it has a high elasticity effect with excellent tensile strength and elongation, it can continuously provide excellent crack resistance performance, and it has an effect that can be more usefully used for waterproofing construction of a building surface including a three-dimensional structure. . For example, when a solar panel is installed on the roof or roof of a building, it can be very usefully used for waterproofing on a building surface including a three-dimensional structure such as a pillar of the solar panel and a fastening means thereof.

In addition, it has excellent high functionality such as water resistance, acid resistance, alkali resistance, salt damage resistance, freeze-thaw resistance, weather resistance, mold resistance, etc., and has the effect of securing continuous waterproof performance. As a result, maintenance and management are efficient and economical from a long-term perspective.

In addition, by effectively reflecting near-infrared and radiant heat, it is possible to provide excellent thermal insulation performance, thereby contributing to the global trend of low-carbon green growth by reducing carbon emission and energy consumption. In particular, when a solar panel is installed on the roof or the roof of a building, it is possible to prevent excessive temperature rise of the rear surface of the solar panel, thereby improving the solar power generation efficiency.

In addition, since various VOC-related organic solvents are not used, it has an eco-friendly effect.

1 is an image showing the evaluation result of brush workability according to Test Example 1 of the present invention.
Figure 2 shows the salt spray test report for the coating film coated with the composition of Example 3 of the present invention.
3 shows a test report for testing the tensile strength and elongation at break for the coating film coated with the composition of Example 1 of the present invention.
4 shows a test report for testing the mold resistance of the coating film coated with the composition of Example 2 of the present invention.
5 is a graph showing a thermal insulation performance evaluation result according to Test Example 1 of the present invention.
6 shows a test report for testing the near-infrared reflectance of the coating film coated with the composition of Example 1 of the present invention.
7 shows the CRRC Product Rating (energy saving type paint certification) confirmation obtained for the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality of the present invention.
8 shows a case in which the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality of the present invention is installed on the outer surface of the housing of the communication equipment installed exposed to the outdoors, and the measurement result of the internal temperature of the housing of the communication equipment before and after construction.
9 is a case in which the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality of the present invention was installed on the surface of the concrete exterior and steel roof of the chicken farm in Gurye-si, Jeollanam-do, and the surface and internal temperature measurement results of the chicken farm before and after construction.
10 shows a case in which the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality of the present invention was installed on the external surface of a feed tank in Goseong-gun, Gyeongsangnam-do, and the measurement result of the temperature change of the external surface of the feed tank before and after construction.

Hereinafter, embodiments of the present invention will be described in detail. However, this is provided as an example, and the present invention is not limited thereto, and the present invention is only defined by the scope of the claims to be described later.

One embodiment of the present invention is 25 to 35% by weight of a composite acrylate resin, 15 to 25% by weight of an ethylene vinyl acetate resin, 10 to 20% by weight of calcium carbonate, 10 to 20% by weight of titanium dioxide, 1 to 10% by weight of a functional pigment , hollow pigment 1 to 10% by weight, defoaming agent 1 to 10% by weight, dispersing agent 1 to 10% by weight, ceramic-based fungicide 1 to 10% by weight, thickener 1 to 10% by weight, antifoaming agent 0.5 to 2% by weight, leveling agent An eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality comprising 0.1 to 1% by weight and the remaining amount of water,

The composite acrylate resin includes (meth)acrylate mixed resin and porous polymethyl methacrylate in a weight ratio of 1: 0.2 to 1;

The functional pigment includes 100 parts by weight of aluminum hydroxide, 50 to 80 parts by weight of silicon dioxide, 1 to 10 parts by weight of magnesium-aminoclay, and 1 to 10 parts by weight of strontium calcium oxide. A paint composition is provided.

According to an eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality according to an embodiment of the present invention and a method for constructing a heat-shielding and waterproofing coating using the same, it is made of various materials such as concrete, metal, asphalt shingle, roof tile, slate, and plastic. It has the effect of being able to paint the exterior surfaces of buildings such as roofs, rooftops, and outdoor parking lots with very good adhesion and workability.

In addition, as it has a high elasticity effect with excellent tensile strength and elongation, it can continuously provide excellent crack resistance performance, and it has an effect that can be more usefully used for waterproofing construction of a building surface including a three-dimensional structure. . For example, when a solar panel is installed on the roof or roof of a building, it can be very usefully used for waterproofing on a building surface including a three-dimensional structure such as a pillar of the solar panel and a fastening means thereof.

In addition, it has excellent high functionality such as water resistance, acid resistance, alkali resistance, salt damage resistance, freeze-thaw resistance, weather resistance, mold resistance, etc., and has the effect of securing continuous waterproof performance. As a result, maintenance and management are efficient and economical from a long-term perspective.

In addition, by effectively reflecting near-infrared and radiant heat, it is possible to provide excellent thermal insulation performance, thereby contributing to the global trend of low-carbon green growth by reducing carbon emission and energy consumption. In particular, when a solar panel is installed on the roof or the roof of a building, it is possible to prevent excessive temperature rise of the rear surface of the solar panel, thereby improving the solar power generation efficiency.

In addition, since various VOC-related organic solvents are not used, it has an eco-friendly effect.

More specifically, the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality according to an embodiment of the present invention contains 25 to 35% by weight of a composite acrylate resin, 15 to 25% by weight of an ethylene vinyl acetate resin, and 10 to 20% by weight of calcium carbonate %, titanium dioxide 10 to 20% by weight, functional pigment 1 to 10% by weight, hollow pigment 1 to 10% by weight, defoaming agent 1 to 10% by weight, dispersing agent 1 to 10% by weight, ceramic-based fungicide 1 to 10% by weight , 1 to 10% by weight of a thickener, 0.5 to 2% by weight of an antifoaming agent, 0.1 to 1% by weight of a leveling agent, and the balance of water.

First, the composite acrylate resin has a very good adhesion and workability, and functions to continuously provide excellent waterproof performance and crack resistance performance. In addition, it functions to provide high functionality such as excellent water resistance, acid resistance, alkali resistance, salt damage resistance, freeze-thaw resistance, and weather resistance to prevent discoloration or structural aging due to ultraviolet rays.

More specifically, the composite acrylate resin can further improve the above-described effect by using a (meth)acrylate mixed resin and a porous polymethyl methacrylate in a weight ratio of 1: 0.2 to 1, as well as excellent It has the effect of providing tensile strength and heat shielding performance.

In this case, the (meth) acrylate mixed resin is prepared by mixing a surfactant and ion-exchanged water, and raising the temperature while stirring to prepare a first mixture; Methyl (meth)acrylate monomer, hydroxy ethyl acrylate monomer, n-Butyl acrylate monomer, acrylic acid (AA), surfactant and ion-exchange water preparing a second mixture by adding and reacting a pre-emulsion and a polymerization initiator formed therein to the first mixture; after aging the second mixture, adding hydroxylammonium to adjust pH to prepare a third mixture; and adjusting the physical properties by adding a ureido-pyrimidinone compound functionalized with an acrylate group represented by the following formula (1) to the third mixture. Accordingly, there is an effect that can implement very excellent tensile strength, waterproof and water resistance.

[Formula 1]

In the above formula, n is an integer from 1 to 30.

At this time, mixing the surfactant and ion-exchanged water, and raising the temperature while stirring; preparing a first mixture; mixes 0.1 to 2.0% by weight of surfactant and 98.0 to 99.9% by weight of ion-exchanged water, and 80 to It can be carried out by preparing the first mixture by raising the temperature to 75 to 85 ℃ while stirring at a speed of 130 rpm.

In addition, the surfactant is generally used in the art, and the type thereof is not particularly limited, but for example, sodium dodecyl benzyl sulfonate, sodium dodecyl benzyl sulfonate, nonionic ether sulfate, dialkylsulfoxate ester And at least one selected from the group consisting of mixtures thereof may be used.

Then, methyl (meth) acrylate (Methyl (meth) acrylate) monomer, hydroxy ethyl acrylate (Hydroxy ethyl Acrylate) monomer, butyl acrylate (n-Butyl acrylate) monomer, acrylic acid (AA), surfactant and ion exchange Preparing a second mixture by adding and reacting a pre-emulsion consisting of water and a polymerization initiator to the first mixture; 30 to 50% by weight of a methyl (meth)acrylate monomer, hydroxy ethyl 10 to 30% by weight of an acrylate (Hydroxy ethyl Acrylate) monomer, 1 to 20% by weight of a n-Butyl acrylate monomer, 0.5 to 5% by weight of acrylic acid (AA), 0.5 to 5% by weight of a surfactant, and the remaining amount 98.5 to 99.8 wt% of a pre-emulsion made of ion-exchanged water and 0.2 to 1.5 wt% of a polymerization initiator are slowly added dropwise to the first mixture for 1 to 5 hours while being added and reacted to prepare a second mixture.

In addition, the surfactant is generally used in the art, and the type thereof is not particularly limited, but for example, sodium dodecyl benzyl sulfonate, sodium dodecyl benzyl sulfonate, nonionic ether sulfate, dialkylsulfoxate ester And at least one selected from the group consisting of mixtures thereof may be used.

In addition, the polymerization initiator is generally used in the art, and the type thereof is not particularly limited. For example, persulfates such as sodium persulfate, potassium persulfate, and ammonium persulfate; peroxides such as hydrogen peroxide, t-butyl peroxide and methyl ethyl ketone peroxide; Azo compounds such as 2,2'-azobis(2-amidinopropane)dihydrochloride and 2,2'-azobis[2-(2-imidazolin-2-yl)propane]dihydrochloride may be used can

Thereafter, after aging the second mixture, adding hydroxylammonium to prepare a third mixture by adjusting the pH; is aged by leaving it at 65 to 75° C. for 1 to 2 hours, and then the aged It can be carried out by adding hydroxylammonium to the mixture to adjust the pH to 7-10. The aging process is for additionally reacting unreacted residual monomers. In this case, when a small amount of a polymerization initiator is added later, it may help to remove residual monomers. In addition, by controlling the storage stability of the aged mixture, it is preferable to adjust the pH to 7 to 10.

Then, adjusting the physical properties by adding a ureido-pyrimidinone compound functionalized with an acrylate group represented by Formula 1 to the third mixture; It can be carried out by adding 0.1 to 10% by weight of the ureido-pyrimidinone compound functionalized with the indicated acrylate group. Accordingly, there is an effect that can implement further improved tensile strength, waterproof and water resistance.

In addition, the porous polymethyl methacrylate is prepared by mixing a polymethyl methacrylate (PMMA) polymer and a pluronic polymer in a ratio of 1: 0.1 to 1 by weight, and dissolving it in an organic solvent to prepare a mixed solution; preparing an emulsion by introducing and emulsifying the mixed solution into an aqueous solution containing a surfactant; evaporating the organic solvent by heating the emulsion; and washing and drying the submerged porous polymethyl methacrylate (PMMA) particles after evaporating the organic solvent. 0.1 to 2 μm may be preferably used. The pluronic polymer having a property of being well soluble in water is emulsified and moved to an aqueous solution phase, and a porous structure is formed in the polymethyl methacrylate particles according to this movement direction. Thereby, there is an effect that can implement very excellent heat shielding performance, tensile strength, waterproofness and water resistance.

At this time, the mixture of the polymethyl methacrylate (PMMA) polymer and the pluronic polymer may be dissolved in an organic solvent at a concentration in the range of 0.001 to 2 g/mL to prepare a mixed solution.

In addition, the organic solvent is generally used in the art and the type thereof is not particularly limited, but for example, from the group consisting of methylene chloride, n-hexanone, methyl isopropyl ketone, isoamyl alcohol, and mixtures thereof. One or more selected may be used. More preferably, methylene chloride, which is easily evaporated at a relatively low temperature of about 35 to 40° C., may be used.

In addition, the step of preparing an emulsion by adding and emulsifying the mixed solution in an aqueous solution containing a surfactant; 0.5 to 5 parts by volume of the mixed solution, 100 parts by volume of the aqueous solution containing a surfactant, and 1,000 to 10,000 rpm It can be carried out by emulsifying by stirring at a speed of to prepare an emulsion. In addition, the aqueous solution containing the surfactant preferably contains a surfactant so as to have a concentration of 0.01 to 10% by weight.

In addition, the surfactant is generally used in the art and the type thereof is not particularly limited, but for example, polyvinyl alcohol, polyacrylic acid, vinyl acetate copolymer, ethyl cellulose, hydroxypropyl cellulose, polyvinyl p One or more selected from the group consisting of rollidone, polyvinyl methyl ether, polyethyleneimine, and mixtures thereof may be used.

In addition, the porous polymethyl methacrylate may implement more excellent adhesion, crack resistance, and high functionality by using a surface coated with polydopamine.

More specifically, the porous polymethyl methacrylate, the surface of which is coated with polydopamine, is mixed with a polymethyl methacrylate (PMMA) polymer and a pluronic polymer in a ratio of 1: 0.1 to 1 by weight and dissolved in an organic solvent. preparing a mixed solution; preparing an emulsion by adding and emulsifying the mixed solution to an aqueous solution containing a dopamine solution and a surfactant; evaporating the organic solvent by heating the emulsion; and washing and drying the submerged porous polymethyl methacrylate (PMMA) particles after evaporating the organic solvent.

At this time, it is preferable that the aqueous solution containing the dopamine solution and the surfactant contain the dopamine solution and the surfactant so as to each independently have a concentration of 0.01 to 10% by weight.

In addition, the dopamine solution is prepared by dissolving at least one selected from the group consisting of dopamine hydrochloride, norepinephrine hydrochloride, epinephrine hydrochloride, and mixtures thereof in a solvent. can In addition, the solvent may be at least one selected from the group consisting of a buffer solution, ethylene glycol, dimethyl sulfoxide, dimethyl formamide, and mixtures thereof. .

The composite acrylate resin is preferably contained in an amount of 25 to 35 wt% with respect to the eco-friendly heat shielding and waterproofing paint composition having high elasticity and high functionality of the present invention. When the content of the composite acrylate resin is too small, there is a problem that the above-described improvement effect may be insufficient. There are problems that could be.

The ethylene vinyl acetate resin functions to improve excellent adhesion, waterproofness, water resistance, workability, flexibility, elongation and elasticity of the coating film. In particular, it functions to enhance tensile strength by imparting plasticity that cannot be expressed with ceramic components due to its inherent plasticity.

The ethylene vinyl acetate resin has a vinyl acetate content of 30 to 45 wt%, and a melt index (190° C., 2.16 kg) of 50 to 250 g/10 min; Vinyl acetate content is 8 to 17% by weight, melt index (190 ℃, 2.16kg) of 3 to 45 g / 10 minutes 2 to 9: Using a mixture of 1 in a weight ratio to further improve the above effect can have an effect.

The ethylene vinyl acetate resin is preferably contained in an amount of 15 to 25% by weight with respect to the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality of the present invention. When the content of the ethylene vinyl acetate resin is too small, there is a problem that the above improvement effect may be insufficient, and when the content of the composite acrylate resin is too large, workability is reduced, or further improvement effect is not expected It is difficult, and there is a problem in that price competitiveness may be lowered.

The calcium carbonate fills the pores in the coating film, serves to compensate for hardness, coating film formation, etc., and to control gloss, and to improve rust prevention properties.

The calcium carbonate is preferably contained in an amount of 10 to 20% by weight with respect to the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality of the present invention. When the content of the calcium carbonate is too small, there is a problem that the above improvement effect may be insufficient. there is a problem with

The titanium dioxide has excellent light scattering power, has a function of reflecting infrared rays that are easily converted to thermal energy among sunlight, and can reduce the amount of heat transmitted and reflected by wavelength rays in the near infrared region, thereby improving the whiteness of the coating By improving, it is possible to provide excellent heat shielding performance, and serves to provide excellent rust prevention and weather resistance.

The titanium dioxide is preferably contained in an amount of 10 to 20% by weight with respect to the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality of the present invention. When the content of the titanium dioxide is too small, there is a problem that the above-described improvement effect may be insufficient. There is a problem that can be degraded.

The functional pigment further improves the excellent heat shielding performance, fills the pores in the coating film to make it watertight, and continuously improves high functionality such as excellent waterproofness, crack resistance performance and weather resistance. In addition, it exhibits strong adhesion and strength, and at the same time provides thixotropy to prevent dripping during painting, thereby preventing poor adhesion, contamination, and lifting, which are easy to occur due to the flow of paint.

The functional pigment may preferably include 100 parts by weight of aluminum hydroxide, 50 to 80 parts by weight of silicon dioxide, 1 to 10 parts by weight of magnesium-aminoclay, and 1 to 10 parts by weight of strontium calcium oxide.

First, the aluminum hydroxide functions to further improve excellent heat shielding performance, corrosion resistance and weather resistance, and to express strong adhesion and strength.

Hereinafter, the content of other components constituting the functional pigment is based on 100 parts by weight of the aluminum hydroxide.

The silicon dioxide blocks near-infrared and radiant heat through reflection and scattering to further improve the excellent heat shielding performance, lower the thermal conductivity, and fill the pores in the coating film to make it watertight. function.

The above-described effect may be further improved by using the silicon dioxide particles having an average particle diameter of 550 to 1000 nm.

The silicon dioxide is preferably included in an amount of 50 to 80 parts by weight based on 100 parts by weight of the aluminum hydroxide. When the content of the silicon dioxide is too small, there is a problem that the above-mentioned improvement effect may be insufficient, and when the content of the silicon dioxide is too large, it is difficult to expect any further improvement effect, and the price competitiveness may be lowered. There is this.

The magnesium-amino clay has excellent heat shielding performance and water-tightness by filling pores in the coating film, thereby continuously improving excellent waterproof and cracking resistance performance, and improving the durability of deodorization and antibacterial performance with excellent adsorption properties. In addition, it functions to express strong adhesion and strength.

The magnesium-amino clay is _{dissolved in magnesium chloride hydrate (MgCl 2} ·6H ₂ O) in an ethanol solvent and 3-aminopropyltriethoxysilane is added, but the 3-aminopropyltriethoxysilane is generating a precipitate by adding magnesium (Mg) of the magnesium chloride hydrate to silicon (Si) in a molar ratio of 1: 1 to 1.5; and centrifuging, drying, and pulverizing the resulting precipitate to produce magnesium-aminoclay powder.

The magnesium-amino clay is preferably included in an amount of 1 to 10 parts by weight based on 100 parts by weight of the aluminum hydroxide. When the content of the magnesium-aminoclay is too small, the improvement effect may be insufficient. When the content of the magnesium-aminoclay is too large, it is difficult to expect any further improvement effect, and the price competitiveness is lowered. There are problems that could be.

The strontium calcium oxide blocks near-infrared and radiant heat through reflection and scattering to further improve the excellent heat shielding performance, and by filling the pores in the coating film to make it watertight, consistently excellent waterproofing, cracking resistance, acid resistance, alkali resistance, salt damage resistance It functions to realize high functionality with excellent freeze-thaw resistance, etc.

The strontium calcium oxide is prepared by mixing and stirring the strontium (Sr) nitrate compound and the calcium (Ca) nitrate compound so that the molar ratio of Sr to Ca is 1: 0.8 to 1.2 to prepare a mixed solution, and then the mixed solution is impregnated with starch After heating, it is possible to further improve the above-described effects by using those prepared by heat treatment at 800 to 1,200 °C.

The strontium calcium oxide is preferably included in an amount of 1 to 10 parts by weight based on 100 parts by weight of the aluminum hydroxide. When the content of strontium calcium oxide is too small, there is a problem that the above improvement effect may be insufficient. When the content of strontium calcium oxide is too large, it is difficult to expect any further improvement effect, and price competitiveness may be lowered there is a problem with

The functional pigment is preferably contained in an amount of 1 to 10% by weight with respect to the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality of the present invention. When the content of the functional pigment is too small, there is a problem that the above-described improvement effect may be insufficient, and when the content of the functional pigment is too large, it is difficult to expect any further improvement effect, and the price competitiveness may be lowered. There is this.

The hollow pigment reflects more than 90% of a wavelength of 300 to 2,500 nm, which is a wavelength region of near-infrared rays, and functions to improve heat reflection efficiency and heat resistance effect by forming a closed air layer.

The hollow pigment has an average particle diameter of 30 to 100 μm having a closed cell layer, and it is preferably selected from the group consisting of alumina silica, bubble grass, pearlite, obsidian expanded soil, and mixtures thereof. .

The hollow pigment is preferably contained in an amount of 1 to 10% by weight with respect to the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality of the present invention. When the content of the hollow pigment is too small, there is a problem that the above-described improvement effect may be insufficient. There is this.

The defoaming agent serves to enhance the appearance of the coating film by removing or reducing bubbles generated during coating, and any conventional defoaming agent known in the art may be used without limitation.

The defoaming agent is preferably contained in an amount of 1 to 10% by weight with respect to the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality of the present invention. If the content of the defoaming agent is too small, there is a problem that the above-described improvement effect may be insufficient. There is this.

The dispersant serves to disperse each material constituting the composition and prevent re-agglomeration by maintaining a distance to express uniform physical properties of the coating film. As the dispersant, a conventional one known in the art may be used.

The dispersant is preferably contained in an amount of 1 to 10 wt% with respect to the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality of the present invention. When the content of the dispersant is too small, there is a problem that the improvement effect may be insufficient, and when the content of the dispersant is too large, it is difficult to expect any further improvement effect, and there is a problem that price competitiveness may be lowered. .

The ceramic-based antifungal agent is an additive for the purpose of mold resistance, bacteria resistance and insect repellency, and functions to improve long-term physical properties after storage of the paint and formation of the film. As the ceramic-based fungicide, a conventional one known in the art may be used.

More specifically, the ceramic-based fungicide may preferably be at least one selected from the group consisting of magnesium oxide, germanium, aluminum oxide, magnesium chloride, monazite, tourmaline, and mixtures thereof.

In addition, the ceramic-based fungicide is based on 100 parts by weight of at least one selected from the group consisting of magnesium oxide, germanium, aluminum oxide, magnesium chloride, monazite, tourmaline, and mixtures thereof, 1 to 20 parts by weight of polyurushiol powder By mixing and using, it is possible to further improve the above-described effects, and there is an effect of further improving the excellent elasticity and waterproofing effect.

The polyurushiol powder is obtained by mixing raw urushi with a hydrophilic organic solvent, centrifuging, and distilling under reduced pressure to extract urushiol; preparing an aqueous polyurushiol solution by reacting the urushiol, a hydrophilic monomer, an oxidizing agent and a neutralizing agent and adding water; preparing a dry polyurushiol powder by injecting the aqueous polyurushiol solution into a hot air dryer; impregnating 100 parts by weight of the polyurushiol dry powder in 80 to 150 parts by weight of MCT oil, and then aging for 1 to 5 hours to prepare a polyurushiol slurry; and heat-treating the polyurushiol slurry at 60 to 110° C. for 5 to 15 hours, and then pulverizing it to have an average particle size of 50 to 80 μm to prepare a polyurushiol powder; It can be used preferably.

At this time, the step of mixing the raw lacquer with a hydrophilic organic solvent, centrifugation, and distillation under reduced pressure to extract urushiol; uses a hydrophilic organic solvent from the lacquer-derived lacquer component to obtain pure water excluding water, rubber, and laccase enzyme. This is to extract purified urushiol having a purity of 98% or more by extracting urushiol, centrifuging and distilling under reduced pressure. In this case, the hydrophilic organic solvent may preferably be ethanol.

In addition, the step of preparing an aqueous polyurushiol solution by reacting the urushiol, the hydrophilic monomer, the oxidizing agent and the neutralizing agent and adding water; is primarily 100 parts by weight of urushiol, 45 to 75 parts by weight of the hydrophilic monomer, and 0.1 to 5 parts by weight of the oxidizing agent After reacting to prepare a first polymer, preparing a hydrophilic salt by neutralizing the first polymer with 10 to 50 parts by weight of a neutralizing agent, and secondly 100 to 300 parts by weight of water and 70 to 250 parts by weight of an oxidizing agent in the hydrophilic salt Including the step of preparing a second polymer by adding parts, an aqueous polyurushiol solution can be prepared.

In this case, the hydrophilic monomer is acrylic acid, methacrylic acid, itaconic acid, crotonic acid, fumaric acid, aconitic acid, maleic acid, monomethyl maleate, monomethyl fumarate, monomethyl itaconate, vinyl sulfonic acid, vinyl phosphoric acid and these At least one selected from the group consisting of a mixture of may be used.

In addition, the oxidizing agent may be at least one selected from the group consisting of ketone peroxide, hydroperoxide, diacyl peroxide, peroxyketal, peroxyester, peroxydicarbonate, and mixtures thereof. In this case, as the more preferable oxidizing agent, hydroperoxide may be used, and more specific examples of the hydroperoxide include t-butyl hydroperoxide, t-ethyl hydroperoxide, hydrogen peroxide, and mixtures thereof. More than one species can be used.

In addition, the neutralizing agent may use an organic base such as triethylamine, triethanolamine, dimethylethanolamine, or an inorganic base such as sodium hydroxide and sodium carbonate.

In addition, when the first polymer is prepared by reacting 100 parts by weight of urushiol, 45 to 75 parts by weight of a hydrophilic monomer, and 0.1 to 5 parts by weight of an oxidizing agent, 0.1 to 5 parts by weight of a redox active catalyst to promote the oxidation reaction More can be added. In this case, the redox catalyst may be selected from the group consisting of metal salts, metal complexes, hydrophilic amines, and mixtures thereof. A non-limiting example of the metal salt may be a metal salt of sodium, calcium, etc. of monovalent or higher, and a non-limiting example of the metal complex may include a metal complex of nickel, cobalt, manganese, iron, copper, etc. of monovalent or higher, A non-limiting example of the hydrophilic amine may be a tertiary amine.

In addition, in the step of preparing the polyurushiol slurry, 100 parts by weight of the polyurushiol dry powder is further mixed with 1 to 20 parts by weight of ergothioneine, and then impregnated with 80 to 150 parts by weight of MCT oil, By aging for 1 to 5 hours to prepare a polyurushiol slurry, the above-described effect can be further improved, and particularly, excellent weather resistance and heat shielding properties can be provided.

The ceramic-based fungicide is preferably contained in an amount of 1 to 10% by weight with respect to the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality of the present invention. When the content of the ceramic-based fungicide is too small, there is a problem that the above-described improvement effect may be insufficient. There are problems that could be.

The thickener is used to control viscosity, impart thickening and thixotropy, prevent sedimentation of particles, improve redispersibility, improve flowability, and improve storage stability of particles, thereby improving physical properties and storability of the paint. The thickener may be used without limitation, a conventional thickener known in the art.

The thickener is preferably contained in an amount of 1 to 10% by weight with respect to the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality of the present invention. When the content of the thickener is too small, there is a problem that the above-described improvement effect may be insufficient, and when the content of the thickener is too large, it is difficult to expect any further improvement effect, and there is a problem that price competitiveness may be lowered. .

The antifoaming agent serves to enhance the appearance of the coating film by suppressing air bubbles generated during painting, and conventional antifoaming agents known in the art may be used without limitation.

The antifoaming agent is preferably contained in an amount of 0.5 to 2 wt% with respect to the eco-friendly heat shielding and waterproofing paint composition having high elasticity and high functionality of the present invention. When the content of the antifoaming agent is too small, there is a problem that the above-described improvement effect may be insufficient, and when the content of the antifoaming agent is too large, it is difficult to expect any further improvement effect, and there is a problem that price competitiveness may be lowered. .

The leveling agent is to improve the appearance characteristics of the coating film while enhancing adhesion in the composition by leveling the composition so that the composition is coated evenly and smoothly. As the leveling agent, a conventional one known in the art may be used without limitation.

The leveling agent is preferably contained in an amount of 0.1 to 1 wt% with respect to the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality of the present invention. When the content of the leveling agent is too small, there is a problem that the improvement effect may be insufficient, and when the content of the leveling agent is too large, it is difficult to expect any further improvement effect, and price competitiveness may be lower there is this

On the other hand, the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality may further include 1 to 10% by weight of a water-soluble urethane resin in order to further improve excellent waterproofness, crack resistance, elongation and water resistance.

More specifically, the water-soluble urethane resin is 100 parts by weight of a polyol having a weight average molecular weight of 1,200 to 3,500, 5 to 15 parts by weight of dimethylol propionic acid, 10 to 30 parts by weight of an amphoteric solvent, and 10 to 30 parts by weight of an aliphatic isocyanate compound. Then, it is prepared by a method comprising the step of neutralizing by adding a neutralizing agent and dispersing in water with ion-exchanged water, the solid content is 7 to 25% by weight, the acid value is 50 to 100 mgKOH/g, and the average particle diameter is 50 to 200 nm can be preferably used.

In this case, the polyol is 1 selected from the group consisting of polyethyl adipate diol, polybutyl adipate diol, polyethyl adipate diol, polyneopentyl adipate diol, poly 1,6-hexyl adipate diol, and mixtures thereof. More than one species can be preferably used.

In addition, the aliphatic isocyanate compound is isophorone diisocyanate, dicyclohexylmethane-4,4'-diisocyanate, trimethyl hexamethylene diisocyanate, 1,6-hexamethylene diisocyanate, 1.4-tetramethylene diisocyanate, 1,12 -dodecamethylene diisocyanate, cyclohexane-1,3-diisocyanate, 2,2,4-trimethyl 1,6-hexamethylene diisocyanate, octadecylene diisocyanate, 1,4-cyclohexylene diisocyanate and these At least one selected from the group consisting of oligomers of the compound may be preferably used.

In addition, the amphoteric solvent may preferably be one or more selected from the group consisting of acetone, N-methyl pyrolidone (NMP), dimethyl formamide (DMF), tetrahydro furan (THF), and mixtures thereof.

In addition, the neutralizing agent may preferably use a tertiary amine such as dimethylaminoethanol, N-methylmorpholine or triethylamine.

In addition, the step of adding 1 to 10 parts by weight of a chain extender may be further included after the step of dispersing in water with ion-exchanged water. Thereby, the above-described effect can be further improved.

At this time, the chain extender can use diamines and diols, more specifically, as a compound containing primary or secondary amino groups and two hydroxyl groups, ethylenediamine, propylenediamine, butylenediamine, pentylenediamine, At least one selected from the group consisting of hexamethylenediamine, ethylenediol, propylenediol, butylenediol, pentylenediol, hexamethylenediol, and mixtures thereof may be preferably used.

In addition, another embodiment of the present invention is a heat-shielding waterproof coating construction method using the eco-friendly heat-shielding and waterproofing paint composition having the high elasticity and high functionality,

A pre-treatment step of removing foreign substances attached to the construction target surface; forming a primer layer by applying a primer for enhancing adhesion performance to the pre-treated construction target surface and drying; and coating and drying the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality on the primer layer to form a heat-shielding and waterproofing layer having a thickness of 1 to 5 mm. provides

The pre-treatment step may further include the step of repairing cracks and parts requiring repair and reinforcement together with the step of removing foreign substances attached to the construction target surface.

In addition, the primer is used to improve adhesion performance generally used in the art, for example, a urethane primer, an asphalt primer, an epoxy primer, a water-soluble epoxy primer, or an aqueous acryl primer may be used. However, the present invention is not limited thereto. The primer layer is preferably applied to a thickness of 50 to 500 μm.

In addition, forming the heat shield and waterproof layer; Thereafter, the method may further include; coating and drying a surface reinforcing agent on the heat shielding and waterproofing layer to form a surface reinforcing layer having a thickness of 2 to 7 mm.

In this case, the surface strengthening agent is styrene-butadiene latex, polyethylene methyl acrylate-butyl acrylate-butadiene copolymer, polyacrylic ester, acrylic emulsion, acrylic-urethane emulsion, silicate-based penetration enhancer, aqueous silica sol-based penetration enhancer, silica and siloxane Compound-based penetration enhancers and those containing at least one selected from a mixture thereof may be used. However, the present invention is not limited thereto.

According to an eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality according to an embodiment of the present invention and a method for constructing a heat-shielding and waterproofing coating using the same, it is made of various materials such as concrete, metal, asphalt shingle, roof tile, slate, and plastic. It has the effect of being able to paint the exterior surfaces of buildings such as roofs, rooftops, and outdoor parking lots with very good adhesion and workability.

In addition, as it has a high elasticity effect with excellent tensile strength and elongation, it can continuously provide excellent crack resistance performance, and it has an effect that can be more usefully used for waterproofing construction of a building surface including a three-dimensional structure. . For example, when a solar panel is installed on the roof or roof of a building, it can be very usefully used for waterproofing on a building surface including a three-dimensional structure such as a pillar of the solar panel and a fastening means thereof.

In addition, it has excellent high functionality such as water resistance, acid resistance, alkali resistance, salt damage resistance, freeze-thaw resistance, weather resistance, mold resistance, etc., and has the effect of securing continuous waterproof performance. As a result, maintenance and management are efficient and economical from a long-term perspective.

In addition, by effectively reflecting near-infrared and radiant heat, it is possible to provide excellent thermal insulation performance, thereby contributing to the global trend of low-carbon green growth by reducing carbon emission and energy consumption. In particular, when a solar panel is installed on the roof or the roof of a building, it is possible to prevent excessive temperature rise of the rear surface of the solar panel, thereby improving the solar power generation efficiency.

In addition, since various VOC-related organic solvents are not used, it has an eco-friendly effect.

As mentioned above, although preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various modifications can be made by those skilled in the art within the scope of the technical spirit of the present invention. This is possible.

<Production Example 1>

Preparation of (meth)acrylate mixed resin

0.8% by weight of sodium dodecylbenzylsulfonate and 99.2% by weight of ion-exchanged water were mixed, and the temperature was raised to 85° C. while stirring at a speed of 100 rpm to prepare a first mixture. Then, methyl (meth) acrylate (Methyl (meth) acrylate) monomer 38% by weight, hydroxy ethyl acrylate (Hydroxy ethyl Acrylate) monomer 15% by weight, butyl acrylate (n-Butyl acrylate) monomer 5% by weight, acrylic acid (AA) 1.3 wt%, surfactant (sodium dodecylbenzylsulfonate) 0.7 wt%, and the remaining amount of preemulsion consisting of ion-exchanged water in 99.5 wt% and polymerization initiator (potassium persulfate) 0.5 wt% in the first mixture A second mixture was prepared by adding and reacting slowly dropwise for 1 to 5 hours. Thereafter, the second mixture was aged at 60° C. for 2 hours, and then hydroxylammonium was added to the aged mixture to adjust the pH to 7 to prepare a (meth)acrylate mixed resin.

<Production Example 2>

Preparation of (meth)acrylate mixed resin

0.8% by weight of sodium dodecylbenzylsulfonate and 99.2% by weight of ion-exchanged water were mixed, and the temperature was raised to 85° C. while stirring at a speed of 100 rpm to prepare a first mixture. Then, methyl (meth) acrylate (Methyl (meth) acrylate) monomer 38% by weight, hydroxy ethyl acrylate (Hydroxy ethyl Acrylate) monomer 15% by weight, butyl acrylate (n-Butyl acrylate) monomer 5% by weight, acrylic acid (AA) 1.3 wt%, surfactant (sodium dodecylbenzylsulfonate) 0.7 wt%, and the remaining amount of preemulsion consisting of ion-exchanged water in 99.5 wt% and polymerization initiator (potassium persulfate) 0.5 wt% in the first mixture A second mixture was prepared by adding and reacting slowly dropwise for 1 to 5 hours. Thereafter, the second mixture was aged at 60° C. for 2 hours, and then hydroxylammonium was added to the aged mixture to adjust the pH to 7 to prepare a third mixture. Then, 3.7 wt% of a ureido-pyrimidinone compound functionalized with an acrylate group represented by the following Chemical Formula 1-1 was added to 96.3 wt% of the third mixture to prepare a (meth)acrylate mixed resin.

[Formula 1-1]

In the above formula, n is 7.

<Production Example 3>

Preparation of porous polymethyl methacrylate

An aqueous solution of polyvinyl alcohol (Polyvinyl alcohol, PVA, 88% hydrolyzed, molecular weight 146,000 to 186,000) surfactant having a concentration of 0.5 wt% was prepared.

Then, poly methyl methacrylate (PMMA, molecular weight 50,000) and pluronic (Pluronic F-127) were mixed in a 1: 1 weight ratio, and then methylene chloride (MC) was mixed thereto. , The polymethyl methacrylate (PMMA) polymer and the concentration of the mixture of the pluronic polymer was prepared a mixed solution of 0.7 g / mL. Then, after closing the lid of the container containing the mixed solution, completely sealed with Teflon tape, stirred and completely dissolved. 1.8 parts by volume of the mixed solution was added to 100 parts by volume of a previously prepared surfactant aqueous solution, and emulsified for 10 minutes at a speed of 5000 rpm using a homogenizer (high-speed stirrer). The emulsion was placed in a beaker or crystallizing dish, transferred directly to a fume hood, stirred at 300 rpm or higher for 3 hours at 37° C., and the organic solvent was evaporated. After the emulsion was precipitated by centrifugation, the supernatant was removed and washed several times. The washed porous microspheres were completely dehydrated through freeze-drying.

<Production Example 4>

Porous polymethylmethacrylate whose surface is coated with polydopamine

An aqueous solution containing 0.5% by weight of polyvinyl alcohol (Polyvinyl alcohol, PVA, 88% hydrolyzed, molecular weight 146,000 to 186,000) surfactant and 3% by weight of a dopamine solution was prepared. At this time, as the dopamine solution, 200 g of dopamine hydrochloride and a tris buffer solution (Tris-buffer, trizma base) were dissolved in water and dissolved in 100 L of a solvent prepared to a concentration of 10 M was used.

Then, poly methyl methacrylate (PMMA, molecular weight 50,000) and pluronic (Pluronic F-127) were mixed in a 1: 1 weight ratio, and then methylene chloride (MC) was mixed thereto. , The polymethyl methacrylate (PMMA) polymer and the concentration of the mixture of the pluronic polymer was prepared a mixed solution of 0.7 g / mL. Then, after closing the lid of the container containing the mixed solution, completely sealed with Teflon tape, stirred and completely dissolved. 1.2 parts by volume of the mixed solution was added to 100 parts by volume of the previously prepared aqueous solution, and emulsified for 10 minutes at a speed of 8000 rpm using a homogenizer (high-speed stirrer). The emulsion was placed in a beaker or crystallizing dish, transferred directly to a fume hood, and stirred at 300 rpm or higher for 3 hours at 37° C. to evaporate the organic solvent. After the emulsion was precipitated by centrifugation, the supernatant was removed and washed several times. The washed porous microspheres were completely dehydrated through freeze-drying.

<Preparation Example 5>

Preparation of magnesium-aminoclay powder

Magnesium chloride hydrate (MgCl ₂ .6H ₂ O) was dissolved in an ethanol solvent at a concentration of 840 g/L and 3-aminopropyltriethoxysilane was added, but the 3-aminopropyltriethoxysilane To silicon (Si), magnesium (Mg) of the above magnesium chloride hydrate was added in a molar ratio of 1: 1.34, and the mixture was stirred for one day to form a precipitate. Thereafter, the resulting precipitate was centrifuged at 300 rpm for 15 minutes, washed and dried at about 65° C., and then pulverized to prepare magnesium-aminoclay powder.

<Preparation Example 6>

Preparation of strontium calcium oxide

After preparing a solution having a solid content of 60% by weight using Sr(NO ₃ ) ₂ and a solution having a solid content of 30% by weight using _{Ca(NO 3} ) ₂ ·4H _{2 O, respectively, the two solutions were mixed} and stirred to prepare a mixed solution. The mixed solution was impregnated with starch and then heat-treated in an electric furnace at a temperature of 1,100° C. to prepare strontium calcium oxide (SrCaO) powder.

<Production Example 7>

Preparation of polyurushiol powder

Raw urushi and ethanol were mixed, centrifuged, and distilled under reduced pressure to extract purified urushiol having a purity of 99% or more.

100 parts by weight of urushiol, 57 parts by weight of maleic acid, 0.3 parts by weight of cobalt octoate and 0.3 parts by weight of t-butyl hydroperoxide were reacted at a temperature of 40° C. in a flask equipped with a stirrer, thermometer, dropping tank and reflux condenser to react the first After preparing the polymer, a hydrophilic salt was prepared by neutralizing the first polymer with 23 parts by weight of triethylamine. Thereafter, 270 parts by weight of water and 135 parts by weight of t-butylhydroperoxide were added to the hydrophilic salt at a temperature of 50° C. to prepare a second polymer, thereby preparing an aqueous polyurushiol solution.

The prepared polyurushiol aqueous solution was sprayed into a hot air dryer to prepare a polyurushiol dry powder.

<Preparation Example 8>

Preparation of polyurushiol powder

100 parts by weight of the dry polyurushiol powder prepared in Preparation Example 3 was impregnated in 98 parts by weight of MCT oil, and then aged for 3 hours to prepare a polyurushiol slurry. Thereafter, the polyurushiol slurry was heat-treated at 100° C. for 8 hours, and then pulverized to have an average particle size of 75 μm to prepare a polyurushiol powder.

<Production Example 9>

Preparation of polyurushiol powder

100 parts by weight of the dry polyurushiol powder prepared in Preparation Example 3 was further mixed with 9 parts by weight of ergothioneine, impregnated with 83 parts by weight of MCT oil, and then aged for 3 hours to obtain a polyurushiol slurry prepared. Thereafter, the polyurushiol slurry was heat-treated at 100° C. for 8 hours, and then pulverized to have an average particle size of 73 μm to prepare a polyurushiol powder.

<Production Example 10>

Preparation of water-soluble urethane resin

100 parts by weight of polyethyl adipate diol having a weight average molecular weight of 3,320, 9 parts by weight of dimethylol propionic acid, 18 parts by weight of amphoteric solvent (DMF) 5 parts by weight of isophorone diisocyanate and 2,2,4-trimethyl 1; A method comprising the step of reacting 7 parts by weight of 6-hexamethylene diisocyanate, adding a neutralizing agent (dimethylaminoethanol) to neutralize, and dispersing in water with ion-exchanged water, and then adding 5 parts by weight of a chain extender (ethylenediamine) A water-soluble urethane resin having an average particle diameter of 155 nm, an acid value of 56 mgKOH/g, and 17.8 wt% was prepared.

<Examples and Comparative Examples>

Table 1 below shows the mixing ratio of the eco-friendly heat shielding and waterproofing paint composition having high elasticity and high functionality and the composition for comparison. . Thereafter, the mixture was sequentially added while stirring from ⑤ to ⑨ at the same time, followed by stirring at a speed of 1000 to 1300 rpm for 60 minutes. Then, ⑩ and ⑪ were slowly added over 60 minutes and stirred at a speed of 600 to 800 rpm. Then, ⑫ and ⑬ were added very slowly over 30 minutes or more and stirred at a speed of 100 to 200 rpm. Finally, the mixture was aged for 6 to 24 hours while stirring at a speed of 100 to 300 rpm. After that, it was tested and packaged as a product.

Category (wt%) Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 ①Water 9 9 9 9 9 9 ②Composite acrylate resin 28 28 28 26 29 28 (weight ratio)
(meth)acrylate mixed resin One
[Production Example 1] One
[Production Example 2] One
[Production Example 2] One
[Production Example 2] One
[Production Example 1] One
[Production Example 1] Porous polymethyl methacrylate One
[Production Example 3] 0.3
[Production Example 3] 0.8
[Production Example 4] 0.5
[Production Example 4] - - Conventional polymethyl methacrylate powder - - - - One One ③Ethylene vinyl acetate resin 17 ¹⁾ 17 ²⁾ 17 ³⁾ 15 ³⁾ 18 ¹⁾ 17 ¹⁾ ④Water-soluble urethane resin
[Production Example 10] - - - 6 - - ⑤Functional pigment 3 3 3 3 - 3 (parts by weight) aluminum hydroxide 100 100 100 100 - - silicon dioxide ⁴⁾ 77 77 77 77 - 100 Magnesium-Amino Clay
[Production Example 5] 5 5 5 5 - - strontium calcium oxide
[Production Example 6] 8 8 8 8 - - ⑥Defoaming agent One One One One One One ⑦ Dispersant 2 2 2 2 2 2 ⑧Ceramic mold inhibitor 5 5 5 4 5 5 (parts by weight) magnesium oxide 100 50 50 50 - - monazite - 50 50 50 100 100 Polyurushiol Powder - 7
[Production Example 7] 7
[Production Example 8] 7
[Production Example 9] - - ⑨Antifoam 1.3 1.3 1.3 1.3 1.3 1.3 ⑩Leveling agent 0.3 0.3 0.3 0.3 0.3 0.3 ⑪ Titanium dioxide 12 12 12 12 13 12 ⑫ Calcium carbonate 14 14 14 13 14 14 ⑬ Hollow Pigment ⁵⁾ 5 5 5 5 5 5 ⑭ thickener 2.4 2.4 2.4 2.4 2.4 2.4 ^{1) The} vinyl acetate content is 38% by weight and the melt index (190℃, 2.16kg) is 176 g/10 min.
^{2) The} vinyl acetate content is 11% by weight and the melt index (190℃, 2.16kg) is 24 g/10 min.
^{3) a} vinyl acetate content of 38% by weight and a melt index (190°C, 2.16kg) of 176 g/10 min;
The vinyl acetate content is 11% by weight and the melt index (190°C, 2.16kg) is 24 g/10 min. A mixture of 4: 1 weight ratio is used.
^{4) Use} particles with an average particle diameter of 585 nm
^{5) Using} 3M(TM) Glass Bubble

Hereinafter, the characteristics of Examples and Comparative Examples 1 and 2 according to the present invention are described so that the characteristics of the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality prepared according to Examples 1 to 3 can be more easily understood. The comparative experimental results are shown.

<Test Example 1>

Evaluation of coating film properties

Using the eco-friendly heat shielding and waterproofing paint composition having high elasticity and high functionality prepared in Examples 1 to 3 and the comparative composition prepared in Comparative Examples 1 and 2, respectively, after painting and drying naturally at room temperature for 7 days , The physical properties of the coating film were evaluated by the following method. The results are shown in Table 2 and FIGS. 1 to 4 below.

-. Brush workability: It was measured by the standard test method for brush and roller workability (Test Method 2411 among the test methods for KS M 5000 paints and related raw materials). At this time, as the evaluation method, it was confirmed by sensory evaluation whether the brush was attracted, whether the roller came out well, and whether the operation was easy. At this time, the evaluation criteria were evaluated in 4 stages as follows.

◎: Very good/ ○: Good/ △: Normal/ X: Poor

-. Water resistance: Coat a glass plate (60mm×140mm×5mm) with a film applicator so that the dry film thickness is about 50 μm, dry it naturally at room temperature for 7 days, and immerse in distilled water for 168 hours. Visually inspect for presence.

-. Acid resistance: Coat a glass plate (60mm×140mm×5mm) with a film applicator so that the dry film thickness is about 50 μm, dry naturally at room temperature for 7 days, and immerse in 5% sulfuric acid aqueous solution for 168 hours. Visually inspect for any abnormalities in the coating film.

-. Alkali resistance: Paint a glass plate (60mm×140mm×5mm) with a film applicator so that the dry film thickness is about 50 μm, dry naturally at room temperature for 7 days, and immerse in 5% sodium hydroxide aqueous solution for 168 hours. After that, visually inspect for any abnormalities in the coating film.

-. Solvent resistance: Paint a glass plate (60mm×140mm×5mm) with a film applicator so that the dry film thickness is about 50 μm, dry naturally at room temperature for 7 days, and after immersion in xylene for 168 hours, the Visually inspect for any abnormalities.

-. Adhesiveness: According to the test method of Test Method B of ASTM D3359, scrape the dried coating film 6 at 2 cm intervals with a knife to make 25 spaces, adhere to the area with 3M transparent tape, and then according to the degree of separation. Evaluate in 6 steps.

5B: No peeling of the coating film at all / 4B: Peeling of the coating film less than 5% / 3B: Peeling of the coating film 5 to 15% / 2B: Peeling of the coating film 15 to 35% / 1B: 35 to 65% of the coating film / 0B: 65% or more of peeling of the coating film

-. Accelerated weathering resistance: In accordance with test method 3231 of KS M 5000, expose the test piece to an accelerated weathering machine (ATLAS Ci5/DMC Weather-ometer) for 600 hours and visually inspect for any abnormalities in the appearance of the coating film.

-. Salt spray test: According to the salt spray test method of KS D 9502, a steel test piece is coated with a thickness of 1 mm, then naturally dried at room temperature for 7 days, and then immersed in (5±1)% NaCl aqueous solution at 35±2℃ After leaving it for 3 days at a temperature of

-. Freezing stability: According to the test method of KS M 6010, fill a sample in a sealable glass container of about 500 ml, measure the consistency, seal it, put it in a refrigerator maintained at a temperature of -10 ℃, and freeze it for 16 hours. After that, it was taken out again and left at (25±2)°C for 8 hours, which was performed 4 times in a row.

-. Impact resistance: Paint a tin plate (15mm×10mm×0.1mm) to a dry film thickness of about 50 μm with a film applicator, then dry it naturally at room temperature for 7 days, and then 500g with a DUPONT Type impact tester. Drop it from a height of 30 cm with a weight of At this time, the impact surface uses a spherical surface of 1/2 inch.

-. Flexibility: Paint a tin plate (15mm×10mm×0.1mm) to a dry film thickness of about 50 μm with a film applicator, then dry it naturally at room temperature for 7 days, then place the midpoint of the test piece with a Mandrel Tester Place it on 1/8 inch and fully bend for 1 second. At this time, if cracking and peeling of the coating film does not occur during visual inspection at the bent part of the test piece, it is considered good, and if cracking and peeling of the coating film occurs, it is regarded as defective.

-. Tensile strength: After painting so that the dry film thickness is about 1 mm, after 48 hours at (40±2)℃, and after curing for at least 4 hours under standard conditions, prepare a test piece specified in KS M 6518 (tensile test) Then, attach the test piece to the tensile tester specified in 6.3.1 of the KS F 3211 test method so that the interlocking interval is 60mm, and then pull the test piece at a 200 mm/min tensile speed until the test piece breaks. After measuring the intensity, the average of three values is shown.

-. Elongation at break: After painting so that the dry film thickness is about 1 mm, after 48 hours at (40±2)℃, and after curing for at least 4 hours under standard conditions, the test piece specified in KS M 6518 (tensile test) Prepare, attach the test piece to the tensile tester specified in 6.3.1 of the KS F 3211 test method so that the interlocking interval is 60mm, and then pull the test piece at a 200 mm/min tensile speed until the test piece breaks. After measuring the distance between the scales of

-. Mold resistance: The mold resistance was measured by requesting KCL, and a mixed spore suspension for 5 types of mold was prepared, inoculated on the sample surface, and cultured for about 4 weeks. ASTM G21- 15 test standards were used.

Grade 0: The growth of mycelia was not recognized in the inoculated part of the specimen.

Grade 1: The area of the mycelial growth recognized in the inoculated part of the specimen is less than 10% of the total area

Grade 2: The area of the mycelial growth recognized in the inoculated part of the test piece is 10 to 30% of the total area

Grade 3: The area of the mycelial growth recognized in the inoculated part of the specimen is 30 to 60% of the total area

Grade 4: The area of the mycelial growth recognized in the inoculated part of the specimen is 60% or more of the total area

Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 brush work ◎ ◎ ◎ ◎ X △ water resistance clear clear clear clear expansion clear acid resistance clear clear clear clear expansion expansion alkali resistance clear clear clear clear expansion expansion solvent resistance clear clear clear clear expansion expansion adherence 5B 5B 5B 5B 3B 4B accelerated weathering clear clear clear clear discoloration discoloration salt spray test clear clear clear clear rust rust Refrigeration stability clear clear clear clear coagulation clear impact resistance Good Good Good Good error error flexibility Good Good Good Good error Good tensile strength 1.6 1.7 1.7 1.8 0.7 1.2 Elongation at break 959 983 1091 1138 73 108 mold resistance Grade 1 Grade 1 Grade 1 Grade 1 3rd grade 2nd grade

As can be seen in Table 2 and FIGS. 1 to 4, the eco-friendly heat shielding and waterproofing paint composition having high elasticity and high functionality prepared in Examples 1 to 3 was compared with the comparative compositions prepared in Comparative Examples 1 and 2 Thus, excellent brush workability (Fig. 1), water resistance, acid resistance, alkali resistance, solvent resistance, adhesion, accelerated weather resistance, salt spray test (Fig. 2), freezing stability, impact resistance, flexibility, tensile strength (Fig. 3), It was confirmed that the elongation at break ( FIG. 3 ) and mold resistance ( FIG. 4 ) were exhibited.

Thermal performance evaluation

The eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality prepared in Examples 1 to 3 and the comparative compositions prepared in Comparative Examples 1 and 2 were coated to have a dry film thickness of 100 μm, respectively, and then dried at room temperature for 7 The heat shielding performance was measured by the following method by air drying for one day, and the results are described in Table 3 and graphically shown in FIG. 5 .

More specifically, using a brush or spray, paint the undercoating iron plate (300mm×300mm×0.5mm) to a dry thickness of about 100 μm, and then dry it naturally at room temperature for 7 days to prepare a test piece, and The test piece was irradiated with a halogen lamp (100W) for 270 minutes at a height of 30 cm above the test piece, and the temperature of the test piece was measured with a digital temperature sensor (OMEGA, Model HH21) over time (30 minutes).

(minute) Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 0 22.4 22.6 21.3 21.5 22.8 22.3 30 49.5 48.0 42.9 43.2 76.3 64.0 60 54.2 52.4 46.7 45.4 78.3 67.5 90 55.5 53.8 48.7 48.3 78.7 69.1 120 56.3 54.2 49.5 48.9 78.7 69.3 150 57.0 54.2 49.6 49.8 78.6 69.7 180 57.4 54.5 49.8 50.0 79.3 69.9 210 57.5 54.8 50.0 50.1 79.5 70.1 240 57.8 55.1 50.0 50.3 80.5 70.4 270 57.9 55.4 50.4 50.5 80.6 70.7

As can be seen in Tables 3 and 5, the eco-friendly heat shielding and waterproofing paint composition having high elasticity and high functionality prepared in Examples 1 to 3 was superior to the comparative compositions prepared in Comparative Examples 1 and 2, It was confirmed that the heat shielding performance was exhibited.

On the other hand, the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality prepared in Examples 1 to 3 and the comparative compositions prepared in Comparative Examples 1 and 2 were coated to have a dry film thickness of 100 μm, respectively, and then at room temperature. was dried naturally for 7 days in KS M 5987 to evaluate the near-infrared reflectance according to the test method, the emissivity according to the test method of ASTM C1371, and the sunlight reflection index (SRI) according to the test method of ASTM E1980-11, and the results is shown in Table 4 and FIG. 6 .

Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Near-infrared reflectance (%) 84.5 85.8 86.4 85.1 76.7 82.5 emissivity 0.86 0.86 0.87 0.89 0.78 0.81 Solar Reflection Index (SRI) 104 107 108 107 95 98

As can be seen in Tables 4 and 6, the eco-friendly heat shielding and waterproofing paint composition having high elasticity and high functionality prepared in Examples 1 to 3 was superior to the comparative compositions prepared in Comparative Examples 1 and 2, It was confirmed that the near-infrared reflectance (FIG. 6) and emissivity and the solar reflectance index (SRI) were shown.

In addition, the obtained CRRC Product Rating (energy saving paint certification) confirmation for the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality of the present invention is shown in FIG. 7 .

actual construction example

After applying the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality prepared in Example 1 on the outer surface of the housing of the communication equipment installed to be exposed to the outdoors, the temperature change inside the communication equipment was measured, and the result is shown in the figure. 8 is shown.

As can be seen in FIG. 8, the eco-friendly heat shielding and waterproofing paint composition having high elasticity and high functionality prepared in Example 1 of the present invention can lower the internal temperature after construction by an average of 10 ℃ or more.

In addition, after applying the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality prepared in Example 2 on the surface of the concrete exterior and steel roof of a chicken farm in Gurye-si, Jeollanam-do, the temperature change on the surface and inside of the chicken farm was measured, The results are shown in FIG. 9 .

As can be seen in FIG. 9, the eco-friendly heat shielding and waterproofing paint composition having high elasticity and high functionality prepared in Example 2 of the present invention can lower the temperature of the outer surface of the steel roof by 32 ℃ or more after construction. It was confirmed that the internal temperature could be lowered by an average of 9 °C or more.

In addition, after applying the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality prepared in Example 3 on the outer surface of the feed tank in Goseong-gun, Gyeongsangnam-do, the temperature change of the outer surface of the feed tank was measured, and the results are shown in Fig. 10 is shown.

As can be seen in FIG. 10, the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality prepared in Example 3 of the present invention can lower the temperature of the outer surface of the feed tank by about 23 ℃ after construction. could

As described above, those skilled in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without changing the technical spirit or essential characteristics thereof. Therefore, it should be understood that all of the embodiments described above are illustrative and not restrictive. The scope of the present invention should be construed as being included in the scope of the present invention, rather than the above detailed description, all changes or modifications derived from the meaning and scope of the claims to be described later and their equivalents.

Claims (6)

25 to 35 wt% of a composite acrylate resin, 15 to 25 wt% of an ethylene vinyl acetate resin, 10 to 20 wt% of calcium carbonate, 10 to 20 wt% of titanium dioxide, 1 to 10 wt% of a functional pigment, 1 to 10 wt% of a hollow pigment %, defoaming agent 1 to 10% by weight, dispersing agent 1 to 10% by weight, ceramic-based fungicide 1 to 10% by weight, thickener 1 to 10% by weight, antifoaming agent 0.5 to 2% by weight, leveling agent 0.1 to 1% by weight and the balance An eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality containing water of
The composite acrylate resin includes (meth)acrylate mixed resin and porous polymethyl methacrylate in a weight ratio of 1: 0.2 to 1;
The functional pigment is an eco-friendly car with high elasticity and high functionality, characterized in that it comprises 100 parts by weight of aluminum hydroxide, 50 to 80 parts by weight of silicon dioxide, 1 to 10 parts by weight of magnesium-aminoclay, and 1 to 10 parts by weight of strontium calcium oxide. Heat-repellent paint composition.
According to claim 1,
The (meth)acrylate mixed resin is
preparing a first mixture by mixing a surfactant and ion-exchanged water, and raising the temperature while stirring; Methyl (meth)acrylate monomer, hydroxy ethyl acrylate monomer, n-Butyl acrylate monomer, acrylic acid (AA), surfactant and ion-exchange water preparing a second mixture by adding and reacting a pre-emulsion and a polymerization initiator formed therein to the first mixture; after aging the second mixture, adding hydroxylammonium to adjust pH to prepare a third mixture; And adjusting the physical properties by adding a ureido-pyrimidinone compound functionalized with an acrylate group represented by the following formula (1) to the third mixture; An eco-friendly heat-shielding and waterproofing paint composition with functionality.
[Formula 1]

In the above formula, n is an integer from 1 to 30.
According to claim 1,
The porous polymethylmethacrylate has a surface coated with polydopamine;
The surface of the porous polymethyl methacrylate coated with polydopamine is mixed with a polymethyl methacrylate (PMMA) polymer and a pluronic polymer in a 1: 0.1 to 1 weight ratio, and dissolved in an organic solvent to prepare a mixed solution to do; preparing an emulsion by adding and emulsifying the mixed solution to an aqueous solution containing a dopamine solution and a surfactant; evaporating the organic solvent by heating the emulsion; And after evaporating the organic solvent, washing and drying the sunken porous polymethyl methacrylate (PMMA) particles; Eco-friendly heat shielding and waterproofing having high elasticity and high functionality, characterized in that it is manufactured by a manufacturing method including a paint composition.
According to claim 1,
The magnesium-aminoclay is
Magnesium chloride hydrate (MgCl ₂ .6H ₂ O) is dissolved in an ethanol solvent and 3-aminopropyltriethoxysilane is added, but with respect to the silicon (Si) of the 3-aminopropyltriethoxysilane adding magnesium (Mg) of the magnesium chloride hydrate in a molar ratio of 1: 1 to 1.5 to form a precipitate, and centrifuging, drying and pulverizing the resulting precipitate to produce magnesium-aminoclay powder It is manufactured by a manufacturing method that is;
The strontium calcium oxide is
After mixing and stirring the strontium (Sr) nitrate compound and the calcium (Ca) nitrate compound so that the molar ratio of Sr to Ca becomes 1: 0.8 to 1.2, a mixed solution is prepared, and the mixed solution is impregnated with starch, and then 800 to An eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality, characterized in that it is manufactured by heat treatment at 1,200 ° C.
According to claim 1,
The eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality further comprises 1 to 10% by weight of a water-soluble urethane resin;
The water-soluble urethane resin
100 parts by weight of a polyol having a weight average molecular weight of 1,200 to 3,500, 5 to 15 parts by weight of dimethylol propionic acid, 10 to 30 parts by weight of an amphoteric solvent, and 10 to 30 parts by weight of an aliphatic isocyanate compound are reacted, and then neutralized by adding a neutralizing agent and high elasticity, characterized in that the solid content is 7 to 25% by weight, the acid value is 50 to 100 mgKOH/g, and the average particle diameter is 50 to 200 nm. and an eco-friendly heat shielding and waterproofing paint composition having high functionality.
A method for constructing a heat-shielding waterproof coating using the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality according to any one of claims 1 to 5, comprising:
A pre-treatment step of removing foreign substances attached to the construction target surface; forming a primer layer by applying a primer for enhancing adhesion performance to the pre-treated construction target surface and drying; and coating and drying the eco-friendly heat-shielding and waterproofing paint composition having high elasticity and high functionality on the primer layer to form a heat-shielding and waterproofing layer having a thickness of 1 to 5 mm; Heat-shielding and waterproofing coating comprising a construction method.

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