KR20010019064A - Adiabatic paint composition and adiabatic material manufactured by using the same - Google Patents

Abstract

PURPOSE: Provided are an insulating paints composition and an insulating material produced by using the same, which are excellent in insulation effect by using a spherical-shaped ceramic pigment being 0.2-500micron of particle size that the inside thereof is empty. CONSTITUTION: The insulating paints composition contains i) 5-90wt% of the spherical-shaped ceramic pigment being 0.2-500micron of particle size that the inside thereof is empty; and ii) 10-95wt% of vehicle. The insulating material is obtained by coating the composition on the surface of a matrix and drying it.

Description

Insulating paint composition and insulating material manufactured using the same {ADIABATIC PAINT COMPOSITION AND ADIABATIC MATERIAL MANUFACTURED BY USING THE SAME}

The present invention relates to a heat insulating coating composition and a heat insulating material prepared using the same, and in particular to a new heat insulating coating composition and a heat insulating material manufactured using the same to be coated on a site requiring heat insulation to obtain the required heat insulating effect. It is about.

Heat transfer mechanisms generated by light or heat are defined in several ways. That is, conduction, a phenomenon in which heat moves directly from a high temperature to a low temperature through an object, convection, a phenomenon in which moving liquid or gas is transferred to a medium, and heat forms directly in a heat source without passing through any medium. Radiation is a phenomenon in which electromagnetic waves resonate and resonate in the molecular activity of an atom or group of atoms, creating heat energy in the molecule itself. In this way, thermal insulation is defined as thermal insulation, which delays or disconnects the process of heat transfer as an artificial obstacle.

Recently, buildings are conducting thermal insulation work with a large weight on the insulation side of building materials in order to save energy due to artificial cooling and heating facilities and to realize an optimal living environment. Styrofoam, urethane foam, and the like, which are commonly referred to as a heat insulating material, are used in such a heat insulation work. Most of them are used as intermediate materials for walls, not final finishing materials, and because they have fine pores on their own, the thermal conductivity is much lower than that of general building materials, so the effect of delaying heat conduction is excellent. However, these materials are bulky and inconvenient in many ways, and the use of wall space is inefficient and expensive, which is uneconomical.

On the contrary, there is a coating composition which is coated with a thin film as a final finishing material of a building and used to impart a heat insulation effect in addition to a function as a paint. This is easy to construct and advantageous to use space, but it is not possible to construct a few centimeters of thickness, such as styrofoam, there is a disadvantage that the presence of pores in the coating film and other special insulation function. Therefore, there is a problem that it is difficult to expect excellent heat insulation effect using a conventional coating composition painted with a thin film.

Therefore, the present invention is to solve the problems of the prior art as described above and to provide an excellent heat insulation effect while having a general paint original function to provide a very economic heat-insulating coating composition in terms of cost and space efficiency It is done.

Another object of the present invention is to provide a heat insulating material which is obtained by coating the above-mentioned heat insulating coating composition on the surface of the material and then drying to provide a very good heat insulating effect.

In order to achieve the above object, the present invention provides a heat-insulating paint composition comprising 5 to 90 weight of the ceramic pigment and 10 to 95 weight of the vehicle having a hollow and particle size ranging from 0.2 to 500 microns.

Preferably, the heat-insulating coating composition containing 5 to 70 weight of the said ceramic pigment, 30 to 95 weight of the said vehicle, and 1-50 weight of coloring pigment and / or extender pigment is used.

More preferably, the ceramic pigment is used in a spherical form having a diameter in the range of 0.2 to 500 microns because a high reflection effect can be obtained.

In addition, in order to minimize the absorption of light, the ceramic pigment, the colored pigment and / or the extender pigment are preferably used with high brightness, most preferably white.

Vehicles that can be used include resins including alkyd resins, urethane resins, epoxy resins, fluorine resins, acrylic resins, and synthetic resin emulsions; Additives including dispersion wetting agents, cryoprotectants, preservatives, antifoams, coating preparations, pH adjusting agents, thickeners, plasticizers, drying promoters and anti-filming agents; And solvents including water and organic solvents.

Another object of the present invention is obtained by coating the surface of the material with a heat-insulating coating composition comprising 5 to 90 weights of ceramic pigments and 10 to 95 weights of a vehicle having a hollow particle size ranging from 0.2 to 500 microns. Achieved by thermal insulation.

The thermal insulation coating film of the heat insulator formed by coating the composition according to the present invention on the surface of the material has a fine pores such as styrofoam to impart an effect of lowering the heat transfer rate, thereby being significantly superior to the coating film prepared using a conventional coating composition. Insulation effect can be obtained. In addition, since it contains a hollow spherical pigment made of ceramic, it has an excellent reflecting effect on the surface of the coating film, and can also reflect the effect without absorbing heat.

That is, the heat insulating material having a heat insulating film according to the present invention, because the convection portion of the various heat transfer mechanism is difficult to artificially control by the coating film to achieve a low thermal conductivity in the conductive portion and to give a reflection function to the coating film to minimize the radiant heat It is to increase the insulation effect.

Hereinafter, the present invention will be described in more detail.

In the coating composition of the present invention, a ceramic pigment having a hollow, uniform spherical shape and having a diameter in the range of about 0.2 to 500 microns is very preferably used. This is because the properties of the ceramic material itself and the hollow state is synergistic to show very good properties. That is, due to the hollow, it significantly lowers the thermal conductivity, and in addition, since the surface is smooth spherical shape, it minimizes radiation by reflection, thereby effectively blocking heat transfer, thereby giving an excellent thermal insulation effect to the insulation prepared therefrom.

The ceramic pigment is contained in the range of 5 to 90 by weight in the heat-insulating paint composition, if the amount thereof is less than 5, it is difficult to expect the heat-insulating effect, if it is more than 90 weight is too excess to reduce the adhesion of the coating film to prepare as a paint Since it is difficult, the amount of use thereof is within the above range. More preferably, the amount thereof is 5 to 70 weight.

It is also desirable to have a size in the range of 0.2 to 500 microns, if its size is less than 0.2 microns, its size is too small to reduce the reflection efficiency, and if it is larger than 500 microns, it is too large to ensure uniformity of the coating film. The size is to be in the above range. In addition, the ceramic pigments are preferably spherical in the range of 0.2 to 500 microns in diameter because the maximum reflection efficiency can be obtained.

In paints, a vehicle is a generic term for all components except the pigment part. Accordingly, the vehicle includes a resin, which is an adhesive component of the coating film, an additive for adjusting various physical properties, a solvent which is a diluent for helping dissolving power and painting workability, and the like.

A vehicle is also used in the composition of the present invention, and the resin used as the vehicle may be a resin used in conventional paints. Since only the ceramic pigment used in the composition of the present invention can achieve the desired heat insulation effect, the type of resin that can be used is not limited. For example, alkyd resins, urethane resins, epoxy resins, fluorine resins, acrylic resins, and the like, which are conventionally used, may be used to produce heat-insulating paints as oil-based paints. If necessary, various synthetic resin emulsions conventionally used as aqueous coatings can be used. Since the type and amount of use thereof are different depending on the needs, the use thereof is not specifically stated, but the use thereof is not particularly limited.

In addition, additives may be used as the vehicle. Additives are not the main elements that affect the thermal insulation effect, but are added in small amounts to optimize the elements that affect the production and work properties in the paint composition. There is not much difference from that. For example, various kinds of additives such as dispersion wetting agents, cryoprotectants, preservatives, antifoaming agents, film preparations, pH adjusting agents, thickeners, plasticizers, drying accelerators, anti-filming agents and the like can be used without limitation.

Solvents that are part of the vehicle vary depending on the resin selected, and therefore their use is not particularly limited. For example, in order to prepare an aqueous coating composition, water is used as a main solvent, and in some cases, hydrophilic solvents may be used together. In the case of an oil paint composition, an organic solvent suitable for the selected resin is selected and used. However, since the type and the amount of use thereof are different, the specific use is not limited.

Various types of vehicles as described above allow the amount to be used in the range of 10 to 95 weight percent of the total amount of the composition. If the amount thereof is less than 10 weights, the amount is too small, making it difficult to form a fluid paint, and if the amount is more than 95 weights, the amount of ceramic pigments is relatively low, so the thermal insulation effect of the obtained coating film is not satisfactory. Is in the above range. More preferably, the amount thereof to be used is 30 to 95 weight.

In addition, in the present invention, in addition to the above-described components, the general pigment used in the conventional paint can be added in the range of 1 to 50 weight based on the total amount of the composition. This includes not only colored pigments but also sieving pigments such as talc or limestone. The coloring function of the paint by the pigment is not different from the heat insulating paint and the conventional paint, so its use is not limited. However, in order to minimize absorption of light, it is preferable to use a white pigment because the coating film preferably maintains high brightness.

In the case of using a general pigment, when the amount thereof is less than 1 weight, the coloring power is poorly imparted to the coating, and when the amount is more than 50 weight, the amount of the ceramic pigment and the vehicle is relatively small. Therefore, it is preferable that the usage amount thereof is in the above range.

Hereinafter, the present invention will be described in detail through specific examples.

Example 1

Kosant PT-04 (trade name of Jeongwoo Fine Chemicals) was used as a dispersion wetting agent, ethylene glycol was used as a cryoprotectant, and Proxel XL-2 (trade name of Geneca Co., Ltd.) was used as a preservative. And K 15 (K 15; spheroid) in spherical form having a particle size of 60 microns using titanium dioxide as a white pigment and a hollow ceramic pigment using SEN-313 (SN-313; trade name of Sanofko Co., Ltd.) as an antifoaming agent. 3M Co., Ltd., a synthetic resin emulsion with an acrylic copolymer resin having a solid content of 50% by weight, industrial ammonia water as a pH adjusting agent, Texanol (trade name of Eastman Kodak Corporation) as a coating agent, and hydroxyethyl cellulose as a thickener. To the mixture in the content ratio shown in Table 1 below to prepare a synthetic resin emulsion insulation coating composition according to the present invention.

Ingredient Name Content (weight) water 17.8 Dispersion Wetting Agent 0.7 Cryoprotectants 2.0 antiseptic 0.2 Antifoam 0.4 White pigment 10.0 Ceramic pigment 15.0 Synthetic resin emulsion 50.0 pH regulator 0.4 Coating preparation 3.0 Thickener 0.5 Sum 100.0

Example 2

Anti-terra-u (trade name of Big Chem Corporation) is used as a dispersing wetting agent, BIC-066 (BYK-066; brand name of Big Chem Corporation) is used as an antifoaming agent, and Benton # 34 (Bentone is used as a thickener. # 34; K 15 (K 15; brand name of 3M Corporation), a spherical form borosilicate having an average particle diameter of 60 microns, using titanium dioxide as a white pigment, and a hollow ceramic pigment. As a solvent, a heavy oil-based alkyd resin having a solid content of 50 weight is used, and as a solvent, Hansol V-1 (Hansol V-1) is used as a drying accelerator. Lewis-Ket 527 (brand name of Sejong Chemical Co., Ltd.) was used, and methyl ethyl ketoxime was mixed in the content ratio shown in Table 2 as an anti-coat agent to prepare an alkyd resin insulating coating composition according to the present invention. It was.

Ingredient Name Content (weight) solvent 17.5 Dispersion Wetting Agent 0.5 Antifoam 0.3 Thickener 0.5 White pigment 10.0 Ceramic pigment 20.0 Alkyd resin 50.0 Drying accelerator 1.0 Anti-film 0.2 Sum 100.0

Example 3

Anti-terra-u (trade name of VICKEM Co., Ltd.) is used as a dispersing wetting agent, HS-50 (HS-50; trade name of red oxidizing agent) is used as an antifoaming agent, and Benton # 38 ( Bentone # 38 (trade name of Enel Industries, Inc.) was used, and titanium dioxide was used as a white pigment, and K 15 (K 15; brand name of 3M Corporation), which was a spherical form borosilicate having an average particle diameter of 60 microns, was used as a hollow ceramic pigment. An acrylic resin having a solid content of 50 weight was used as the resin, and xylene, which is an aromatic organic solvent, was mixed at a content ratio shown in Table 3 below to prepare an acrylic resin insulating coating composition according to the present invention.

Ingredient Name Content (weight) solvent 18.7 Dispersion Wetting Agent 0.5 Antifoam 0.3 Thickener 0.5 White pigment 10.0 Ceramic pigment 20.0 Acrylic resin 50.0 Sum 100.0

Comparative Example 1

Kosant PT-04 (trade name of Jeongwoo Fine Chemicals) was used as a dispersion wetting agent, ethylene glycol was used as a cryoprotectant, and Proxel XL-2 (trade name of Geneca Co., Ltd.) was used as a preservative. , SEN-313 (SN-313; trade name of Sanofko Co., Ltd.) as a defoaming agent, titanium dioxide as a white pigment, talc and limestone as sieving pigments used in conventional paints, and solid content as a synthetic resin emulsion. Synthetic resin emulsion was prepared by mixing a 50 weight acrylic copolymer synthetic resin emulsion, industrial ammonia water as a pH adjusting agent, Texanol (trade name of Eastman Kodak) as a coating agent, and hydroxyethyl cellulose as a thickener in the content ratios shown in Table 4 below. A paint composition was prepared.

Ingredient Name Content (weight) water 16.3 Dispersion Wetting Agent 0.7 Cryoprotectants 2.0 antiseptic 0.2 Antifoam 0.4 White pigment 22.0 Sieving pigment 15.0 Synthetic resin emulsion 40.0 pH regulator 0.4 Coating preparation 2.5 Thickener 0.5 Sum 100.0

Comparative Example 2

Anti-terra-u (trade name of Big Chem Corporation) is used as a dispersing wetting agent, BIC-066 (BYK-066; brand name of Big Chem Corporation) is used as an antifoaming agent, and Benton # 34 (Bentone is used as a thickener. # 34; trade name of Enel Industries Co., Ltd.), titanium dioxide as a white pigment, talc of 400 mesh grade as a sieving pigment, heavy oily alkyd resin with a solid content of 50 weight as an alkyd resin, and a petroleum based solvent. Hansol V-1 (trade name of Korea Petrochemical), which is an organic solvent, and Lewis-Ket 527 (trade name of Sejong Chemical), which is a complex of metal salt, are used as a drying accelerator. As a film preventive agent, methyl ethyl ketoxime was mixed in the content ratio shown in Table 5 to prepare an alkyd resin insulating coating composition according to the present invention.

Ingredient Name Content (weight) solvent 17.5 Dispersion Wetting Agent 0.5 Antifoam 0.3 Thickener 0.5 White pigment 25.0 Sieving pigment 5.0 Alkyd resin 50.0 Drying accelerator 1.0 Anti-film 0.2 Sum 100.0

Comparative Example 3

Anti-terra-u (trade name of VICKEM Co., Ltd.) is used as a dispersing wetting agent, HS-50 (HS-50; trade name of red oxidizing agent) is used as an antifoaming agent, and Benton # 38 ( Bentone # 38 (trade name of NEL Industries, Inc.), titanium dioxide as a white pigment, talc of 400 mesh grade as a sieving pigment, an acrylic resin with a solid content of 50 weight as an acrylic resin, and an aromatic organic solvent as a solvent. Phosphorus xylene (xylene) was mixed in the content ratio shown in Table 6 to prepare an alkyd resin insulating coating composition according to the present invention.

Ingredient Name Content (weight) solvent 18.7 Dispersion Wetting Agent 0.5 Antifoam 0.3 Thickener 0.5 White pigment 25.0 Sieving pigment 5.0 Acrylic resin 50.0 Sum 100.0

In order to test the properties of each coating composition obtained in Example 1-3 and Comparative Example 1-3, a coating film was formed using each composition, and the physical properties of the formed coating film were tested as follows.

① Insulation effect comparison test

Two models of 20 cm wide and 15 cm long are produced, and the remaining portions except the ceiling of the model house are sufficiently insulated using Dupont's Taipek Insulation, and two sheets are prepared according to the embodiment of the present invention. On the other sheet, the general coating composition prepared according to the comparative example was uniformly coated to a thickness of about 1 mm and dried at room temperature. The ceiling portion of one of the two model houses is attached to the iron plate obtained by coating the composition prepared according to the embodiment of the present invention, that is, the heat insulating material of the present invention, and the ceiling portion of the other model house paints the composition of the comparative example. The conventional iron plate obtained by attaching was attached. Two model houses were placed side by side, and bulbs were placed 20 cm high from the ceiling of each model house, and the light was irradiated to measure the temperature change on the opposite side of the iron plate, that is, the inner surface, using a digital surface thermometer.

② Thermal conductivity test

There are four methods defined in KS L 9016. Among them, the error was relatively small and was measured using a plate comparison method that is used in many parts.

Two paper boxes of 15 x 7 x 2 cm size were prepared, and the composition according to Example 1 and Comparative Example was filled therein, and the dried coating film was used as each specimen. The thermal conductivity measurement device was measured based on kcal / mh ° C., which is a measurement unit, using a QTM-D3 flat plate comparison method manufactured by Kyoto Electric.

The test results for each of the above items are summarized in Table 7.

division Coating Films Prepared with the Compositions of the Examples Coating film manufactured with the composition of the comparative example Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Insulation effect comparison (℃) Initial temperature 21.1 20.1 20.4 21.1 20.1 20.4 After 10 minutes 24.1 23.5 23.7 39.6 40.4 40.1 Temperature after 30 minutes 30.2 30.1 31.2 46.0 47 47.5 After 60 minutes 35.8 35.9 34.9 50.5 51.2 51.0 Temperature after 120 minutes 38.8 38.5 38.5 52.0 53.3 54.7 Thermal conductivity (kcal / mh ℃) 0.0759 0.0762 0.0746 0.6842 0.7012 0.7005

As can be seen from the test results shown in Table 7, the heat insulating material prepared by using the heat insulating coating composition according to the present invention is superior to the heat insulating material prepared by using the conventional coating composition, and transferred to the inside within the same time. There is much less heat, which means that the inner surface is cooler. In addition, in terms of thermal conductivity, it can be seen that the heat insulating material of the present invention has a much lower value and is more advantageous. As a result, it can be seen that the composition and the heat insulating material according to the present invention can provide an excellent heat insulating effect when used for heat insulation of general buildings and various facilities.

Although the present invention has been described above according to an embodiment of the present invention, it will be apparent to those skilled in the art that various modifications may be made without departing from the spirit of the present invention.

Claims (9)

An insulating coating composition comprising 5 to 90 weights of ceramic pigments and 10 to 95 weights of a vehicle having a hollow and particle size ranging from 0.2 to 500 microns. The heat-insulating paint according to claim 1, wherein the ceramic pigment has a content of 5 to 70 weights, the vehicle has a content of 30 to 95 weights, and further contains 1 to 50 weights of colored pigments and / or extender pigments. Composition. The heat insulating coating composition according to claim 1, wherein the ceramic pigment is in the form of a sphere in the range of 0.2 to 500 microns in diameter. The heat insulating coating composition according to claim 2 or 3, wherein the ceramic pigment, colored pigment and / or extender pigment are white pigments. The heat insulating coating composition according to claim 4, wherein the ceramic pigment is borosilicate. The resin of claim 1, wherein the vehicle comprises an alkyd resin, a urethane resin, an epoxy resin, a fluorine resin, an acrylic resin and a synthetic resin emulsion; Additives including dispersion wetting agents, cryoprotectants, preservatives, antifoams, coating preparations, pH adjusting agents, thickeners, plasticizers, drying promoters and anti-filming agents; And a solvent comprising water and an organic solvent; heat insulating coating composition comprising a. A heat insulating material obtained by coating a surface of a material with an insulating coating composition comprising 5 to 90 weights of a ceramic pigment and a vehicle having a particle size ranging from 0.2 to 500 microns and a vehicle weight of 10 to 95 weights. 8. The heat insulating material according to claim 7, wherein the content of the ceramic pigment is 5 to 70 weights, the content of the vehicle is 30 to 95 weights, and 1 to 50 weights of a colored pigment or a sieving pigment. The heat insulator according to claim 7 or 8, characterized in that the ceramic pigment is in the form of a sphere in the range of 0.2 to 500 microns in diameter.