KR20160020177A - Putty composition reduced radon component and applying method thereof - Google Patents
Putty composition reduced radon component and applying method thereof Download PDFInfo
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- KR20160020177A KR20160020177A KR1020140105199A KR20140105199A KR20160020177A KR 20160020177 A KR20160020177 A KR 20160020177A KR 1020140105199 A KR1020140105199 A KR 1020140105199A KR 20140105199 A KR20140105199 A KR 20140105199A KR 20160020177 A KR20160020177 A KR 20160020177A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/08—Diatomaceous earth
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/26—Carbonates
- C04B14/28—Carbonates of calcium
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0001—Living organisms, e.g. microorganisms, or enzymes
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/34—Flow improvers
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/44—Thickening, gelling or viscosity increasing agents
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/50—Defoamers, air detrainers
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00025—Aspects relating to the protection of the health, e.g. materials containing special additives to afford skin protection
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Paints Or Removers (AREA)
Abstract
Description
The present invention relates to a putty composition with reduced radon component and a coating method thereof, and more particularly to a putty composition containing a coral powder which hardly emits radon gas as a main component and a putty composition which is used only as needed in the field, The present invention relates to a putty composition and a coating method thereof, in which a putty composition is stored in a container in a hermetically sealed state, and the putty composition is white so that a desired color can be easily realized.
Paint (paint), which is generally used as a surface finishing material for buildings, is a fluid material that is widely applied to the surface of an object to form a thin coating layer, which is dried and cured over time to protect the surface of the object But also has the function of increasing aesthetics. Generally, wall finishing materials of a building include an exterior finishing material (outer wall finishing material) made of a panel which is processed by adding stone or marble to the outside surface (exterior wall) of the wall made by curing mortar, And interior finishing materials (interior finishing materials) made of wallpaper, synthetic resin, and wood panel, which are formed in various patterns to create an indoor environment. Since the interior and exterior finish material, particularly the interior finishing material for creating the atmosphere and the indoor environment of the room, constitutes a space for human living, it is required to use a material that is harmless to the human body and maintains the living environment in a pleasant state . In other words, it is essential to use a finishing material having a self-cleaning ability against air, which can suppress the generation of various odors and fungi due to the hermeticity of the room. However, since gypsum board and plywood among various commonly used building materials provided only the function as a finishing material of a simple structure such as discharging harmful gas and carcinogenic substances caused by the use of a chemical adhesive, the multifunctionalization of such a building material is desperately required In order to improve, there has been recently used an inner finishing material and paint using environmentally friendly loess as a main raw material in recent years. However, after the completion of curing, cracks are generated or appearance is not so good, And the clothes and the internal space are contaminated.
Particularly, radon gas has a harmful effect on the human body caused by building materials. Specifically, radon is a colorless, odorless gas generated when radium is cracked in soil, rock, water, It is known to cause lung cancer and gastric cancer. When uranium contained in natural materials such as soil or rock collapses, it becomes radium. Radon is a colorless, tasteless, odorless radioactive gas in the form of an inert gas, which is produced when the radium collapses. Radium is present in building materials such as soil, concrete, gypsum board and asbestos slate. Radon gas from radium is radiated directly or generated in the ground and penetrates into the room. In general, the radon concentration in homes and buildings with low levels of ventilation is tens or hundreds of times higher than the outdoor level due to the accumulation of radon. And since radon is a gas, it does not affect the body itself, but it is absorbed into the body through the respiration. When it enters the lungs, the decay product is deposited in the trachea and alveoli, releasing the alpha rays and mutating the chromosomes in the cells. It is pointed out that there is a possibility of lung cancer.
Therefore, as a finishing material for wall interior and exterior of various buildings, pasty mortar or putty is composed of natural ingredients and is non toxic to the human body and is not inflammable. It has ventilation, insecticidal effect, humidity control, , Soundproofing effect and deodorization effect have been actively studied. Among them, various minerals have been recently applied and applied as excellent materials. However, since most of them are applied to conventional petrochemical organic resins, functional mineral And ultimately, it is fundamentally weak in terms of fire resistance and durability.
Korean Patent Application No. 10-2008-0020644 (2008.03.05) discloses a composition for environmentally friendly paints and plaster paints having no volatile organic compounds, odorless, insect repellent, antimicrobial and antifungal functions, wherein titanium oxide 20 20 to 60% by weight of a paint component consisting of 25% by weight of silicate, 24 to 28% by weight of silicate, 12 to 16% by weight of vinyl acrylic resin and 35 to 40% by weight of water, surfactant and deformer; 10-30% by weight of a volcanic stone extract, which is a mixture of 320-370 mesh volcanic stone powder and 1-2 cm volcanic stone ore in a ratio of 50:50 and extracted with water; And 20 to 60% by weight of a volcanic stone powder of 50 to 350 mesh, and a composition for environmentally friendly functional paints and plaster paints.
However, since the composition contains water in the composition, hardening can not proceed after opening the container and can not be reused, and radial or radon gas is contained in the volcanic stone, and thus, it is difficult to shield the harmful components fundamentally.
SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a putty composition and a coating method thereof, which can minimize radon gas emission using coral powder as a main component, .
Further, the object of the present invention is to provide a putty composition which can be stored in a container in a sealed state after the use, so that the putty composition remaining after use can be used later, and a coating method thereof.
It is another object of the present invention to provide a putty composition and a coating method thereof which can easily realize desired colors because the putty composition is white.
It is also an object of the present invention to provide a putty composition which can be stored for a long period of time without any separate thermal storage facilities even in an environment such as winter or far eastern province, and a coating method thereof.
In order to attain the above object, the present invention provides a putty composition having reduced radon content, comprising 10 to 30 parts by weight of coral powder, 10 to 30 parts by weight of calcium carbonate powder, 20 to 40 parts by weight of diatomaceous earth powder, 30 to 30 parts by weight of silica powder, and 10 to 30 parts by weight of silica powder. The powder is packaged and stored in a container, and the powder is mixed with water and applied to the wall during use.
Also, the powder of the putty composition in which the radon component is reduced according to the present invention is characterized by further containing 0.3 to 0.5 parts by weight of a thickener, 0.3 to 0.5 parts by weight of a hydrodynamicizing agent, and 0.05 to 0.1 part by weight of a defoaming agent.
In addition, the powder of the putty composition in which the radon component is reduced according to the present invention is characterized by further comprising 1 to 5 parts by weight of the natural fiber and 0.03 to 0.1 part by weight of the retarder.
Also, the method for coating with a reduced radon component according to the present invention comprises 10 to 30 parts by weight of coral powder, 10 to 30 parts by weight of calcium carbonate powder, 20 to 40 parts by weight of diatomaceous earth powder, 20 to 30 parts by weight of powdery resin, 10 to 30 parts by weight of silica sand, 0.3 to 0.5 parts by weight of a thickener, 0.3 to 0.5 parts by weight of a perfluorocarbonizer, 0.05 to 0.1 part by weight of a defoaming agent, 1 to 5 parts by weight of a natural fiber, A step of preparing S1; Mixing the composition with water to prepare the pasty putty; And applying the putty in the paste state to the wall.
The putty of the paste state of step S2 of the putty coating method in which the radon component is reduced according to the present invention is characterized in that 60 to 70 parts by weight of the water is mixed with 100 parts by weight of the composition.
According to the putty composition and the coating method of the present invention having the above-described constitution, radon gas emission can be minimized by using coral powder which hardly releases radon gas as a main component.
Further, according to the putty composition and the coating method thereof according to the present invention, since the putty composition in powder form is used in a reduced amount as required in the field, the putty composition remaining after use can be stored in a closed container and used thereafter.
Further, according to the putty composition and the coating method of the present invention, since the putty composition is white, a desired color can be easily implemented.
Further, according to the putty composition and coating method of the present invention, there is an effect that it can be stored for a long period of time in an environment such as a winter or far eastern province without an additional heat storage facility.
1 is a process diagram showing an embodiment of a coating method using the putty composition according to the present invention.
FIGS. 2A to 2F are photographs of measuring a concentration of radon gas emitted from a building material accommodated in a chamber. FIG.
FIG. 3A is a photograph showing a measurement of the concentration of radon gas emitted from a gypsum board box according to Experimental Example 2-1. FIG.
FIG. 3B is a photograph showing a measurement of the concentration of radon gas discharged after applying the putty composition to a gypsum board box according to Experimental Example 2-2 of the present invention. FIG.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the terms described below are defined in consideration of the functions of the present invention, and these may vary depending on the intention of the user, the operator, or the precedent. Therefore, the definition should be based on the contents throughout this specification.
The putty composition with reduced radon component according to the present invention can largely include coral powder, calcium carbonate powder, diatomaceous earth powder, powdered resin, and silica sand.
Specifically, the putty composition in which the radon component is reduced according to the present invention comprises 10 to 30 parts by weight of a coral powder, 10 to 30 parts by weight of a calcium carbonate powder, 20 to 40 parts by weight of a diatomaceous earth powder, 20 to 30 parts by weight of a powdery resin, , And 10 to 30 parts by weight of silica sand.
The coral powder is obtained by pulverizing coral, which is a colony animal belonging to the coral cocoons of the gosling animal group, and is capable of deodorizing various odors and controlling the humidity, and does not contain radon.
And the coral powder emits high-quality far-infrared rays at room temperature, generates negative ions, and controls the active oxygen to sulfuric acid. And coral powder has excellent antifungal and antimicrobial effect, and can neutralize or decompose chemicals such as formaldehyde to prevent sick house syndrome, and has the effect of improving diseases such as atopy, allergy, asthma and eczema.
The calcium carbonate powder is a white substance (CaCO 3 ) in which carbonate ions and calcium ions are formed and formed, which is not soluble in water and precipitates in an aqueous solution. The calcium carbonate powder is obtained by physically directly grinding and classifying high-purity crystalline limestone (calcite form) And heavy calcium carbonate having a particle diameter of usually 5 占 퐉 or less can be exemplified.
The calcium carbonate powder serves as an extender and improves the gloss, dispersibility, durability, and the like, and improves low absorptivity, low abrasion resistance, pH stabilizing effect, corrosion resistance and fluidity. It is also characterized by its low cost and its high specific gravity compared to other ingredients.
The diatomaceous earth powder is white and the main component is a silicon dioxide (SiO 2). Diatomaceous earth is a soil formed by sedimentation of diatoms of diatoms, which are lower algae living in the water. Diatomaceous earth is mainly formed in seabed, hovering, hot spring, etc. and high in purity. When the composition of the present invention is mixed with water and cured, it enhances the strength and also shields radiation. Diatomaceous earth is a porous material of about several tens of microns mixed with clay, volcanic ash, and organic matter, and can absorb harmful components such as radon.
The silica sand powder is quartz sand, and its main component is silicon dioxide (SiO 2 ), which enhances strength. However, since general silica sand powder is pale yellowish, there is a problem that it is difficult to realize the original pigment color when a putty of a specific color is made. Therefore, it is preferable to use white squeegee having a particle size of about 50 to 100 mesh in white. At this time, the pigment is preferably a natural pigment.
The powdered resin may be made of an acrylic resin or an ethylene-vinyl acetate copolymer (EVA) resin having excellent water resistance and adhesion.
The powdery resin is a dispersed material prepared by spray drying a liquid resin, and when dispersed in water, becomes a stable liquid resin. The powdery resin dispersed in water forms an irreversible polymer film that does not dissolve in water after drying, thereby increasing the adhesion to organic or inorganic components.
The powdery resin of the present invention is preferably 20 to 30 parts by weight. This is because when the powdery resin is less than 20 parts by weight, the hydrophilic property of the coating layer is weakened, the adhesive strength is decreased, and the content of the coral powder, diatomaceous earth powder and the like is more than 30 parts by weight, and the efficacy of the powder is weakened.
And, the putty composition with reduced radon component according to the present invention may further include a thickener, a superplasticizer, a defoaming agent, and a retarder.
The thickening agent controls the flowability to prevent flowability, scratching, pigment settling, and viscosity adjustment during coating, and may include 0.3 to 0.5 parts by weight.
The thickening agent may be selected from any one of water-dispersible acrylic polymer, hydroxyethyl cellulose, and a thickener mainly composed of a polyurethane resin.
The hyperpolarizing agent has a function of forming a lubricating film between the particles and the particles to reduce the mutual adhesion force between the components to increase the strength and to improve the flowability and shrinkage and may include 0.3 to 0.5 parts by weight .
The hyperpolarizer may be exemplified by a polycarbonate (PCS) -based perfluorocompatible agent.
The antifoaming agent serves to reduce bubbles to improve the surface of the coating and to improve the strength, and may include 0.05 to 0.1 parts by weight.
The antifoaming agent may be a mixture of a mineral oil, a surfactant, a fatty acid, a metal soap, or a modified polysiloxane mixture.
The natural fiber is a cellulose fiber made by precisely processing cellulose of a natural perennial plant. It is non-water-soluble and has a function of preventing cracks (cracks), sagging and shrinkage of a coating film and enhancing bonding force, and comprises 1 to 5 parts by weight .
The retarding agent is for delaying the condensation of the putty in paste state, and may include 0.03 to 0.1 part by weight.
The retarder may be selected from any one of sugar, alcohols, surface active agents and inorganic acids.
The putty composition with reduced radon component according to the present invention can be used in a specific numerical value range (parts by weight) of coral powder, calcium carbonate powder, diatomaceous earth powder, powder resin, whitener, thickener, By specifying it, it is possible to minimize radon (gas) generation and to prevent radiation to the outside, to be eco-friendly, to be inexpensive to manufacture, and to be painted with excellent quality at the time of construction.
When the putty composition of the present invention is mixed with water, the putty composition of the present invention has an excellent adhesive strength and can be easily coated on various walls such as cement, plywood, gypsum board, MDF, magnesium board, have.
Also, when applied to a mold, it does not smell of mold due to the deodorizing effect even if it is painted on it without removing the mold, and then the mold does not live there.
Particularly, the powdery putty is advantageous in that it is packed in the state of not mixing water and can be mixed with water at the time of use, so that the putty is not easily condensed or hardened and thus the preservation period is significantly longer than that of the liquid phase putty generally used .
Hereinafter, a putty coating method in which a radon component is reduced according to the present invention will be described in detail with reference to the accompanying drawings.
1 is a process diagram showing an embodiment of a painting method using a powder putty according to the present invention.
Referring to FIG. 1, a coating method using powder putty according to the present invention comprises 10 to 30 parts by weight of coral powder, 10 to 30 parts by weight of calcium carbonate powder, 20 to 40 parts by weight of diatomaceous earth powder, 0.3 to 0.5 part by weight of a thickening agent, 0.3 to 0.5 part by weight of a hyperpoyant, 0.05 to 0.1 part by weight of a defoaming agent, 1 to 5 parts by weight of a natural fiber, ≪ / RTI > to 0.1 part by weight; A step S2 of mixing the powder with water to prepare a putty in a paste state, and a step S3 of applying the filtered putty to the wall.
The step (S1) is to prepare a putty composition with a reduced radon component. The composition is stored in an unmixed state and mixed with water after being used as required in the field during coating.
The step S2 is a step of preparing a pasty putty, and it is preferable to mix 60 to 70 parts by weight of water with respect to 100 parts by weight of the powdery putty. Add water to the powder putty and stir thoroughly for 3 to 5 minutes with a mixer drill.
In step S2, the paste-state putty can be sieved. For example, the mixed or undispersed components are sieved with a spatula or the like using a sieve of 50 to 100 mesh.
The step S3 is to apply paste-like putty to the wall surface by using a trowel for trowel.
Hereinafter, the putty composition in which the radon component of the present invention is reduced and the coating method thereof will be described in more detail through preferred embodiments.
1. Step S1
10 to 30 parts by weight of a coral powder, 10 to 30 parts by weight of a calcium carbonate powder, 20 to 40 parts by weight of a diatomaceous earth powder, 20 to 30 parts by weight of a powdery resin, 10 to 30 parts by weight of silica, 0.3 to 0.5 parts by weight of a high dynamic agitator, 0.05 to 0.1 part by weight of a defoaming agent, 1 to 5 parts by weight of a natural fiber and 0.03 to 0.1 part by weight of a retarder are prepared.
Step S2
Water in an amount of 60% by weight based on the total weight of the powders is put into the mixer and mixed with a mixer drill for 3 to 5 minutes to such an extent that there is no pellet to prepare a putty in paste form.
At this time, putty paste is poured into a sieve of 80-100 mesh, the granules are squeezed and rubbed with a spatula.
Step S3
The paste-form putty is applied on the gypsum board to complete the painting work.
[ Experimental Example One]
The concentration of radon gas [pCi / L] emitted from various materials in a closed chamber was measured.
1. The radon gas concentration of the atmospheric air was measured without any chamber, and its concentration was 0.5 pCi / L.
2. The coral powder was placed in the chamber and the concentration of radon gas was measured and its concentration was 0.2 pCi / L.
3. The radon gas concentration in the chamber was measured and the concentration was 3.8 pCi / L.
4. The gypsum board was placed in the chamber and the concentration of radon gas was measured. The concentration was 5.7 pCi / L.
5. The cement brick was placed in the chamber and the concentration of radon gas was measured and its concentration was 8.9 pCi / L.
6. The diatomaceous earth was placed in the chamber and the concentration of radon gas was measured. The concentration was 0.2 pCi / L.
As can be seen from Experimental Example 1, radon gas of 3.8, 5.7, and 8.9 pCi / L was emitted in the case of yellow soil, gypsum board and cement brick, respectively. However, in the case of the coral powder and diatomaceous earth used in the present invention, 0.2pCi / L of radon gas was detected.
Particularly, as in Experimental Example 1-1, the fact that the concentration of the lardon gas in the chamber containing the coral powder or the diatomaceous earth powder is 0.2 pCi / L, It is judged that lardon gas was adsorbed from powder or diatomaceous earth powder.
FIGS. 2A to 2F are photographs of measuring a concentration of radon gas emitted from a building material accommodated in a chamber. FIG.
[ Experimental Example 2]
1. A cubic box was made with a gypsum board, a radon gas measuring device was inserted into the box, and the radon gas concentration [pCi / L] emitted for 48 hours was measured with the opened surface closed with glass. 4.0 pCi / L.
FIG. 3A is a photograph showing a measurement of the concentration of radon gas emitted from a gypsum board box according to Experimental Example 2-1. FIG.
2. Putty paste in Example 1 was applied to the inner surface of the box of the hexahedron with a gypsum board and then the radon gas measuring device was put in a state of sufficiently dried. The concentration of radon gas [pCi / L] emitted over time was measured and its concentration was 0.8 pCi / L.
FIG. 3B is a photograph showing a measurement of the concentration of radon gas discharged after applying the putty composition to a gypsum board box according to Experimental Example 2-2 of the present invention. FIG.
As can be seen in Experimental Example 2, in the case of a gypsum board used for a wall in general, the concentration of radon gas was 4.0 pCi / L, whereas the putty composition according to Example 1 of the present invention was applied on a gypsum board It can be seen that the concentration of radon gas was significantly reduced to 0.8 pCi / L.
In conclusion, when the putty composition of the present invention is used for finishing walls, the concentration of radon gas is drastically reduced to 1/5 of that of gypsum board because (1) components constituting the putty composition (coral powder, diatomaceous earth powder, etc.) (2) it is predicted that the radon gas is rarely absorbed in the coral powder and the diatomite in Experimental Example 1, and the radon gas emission is shielded by the coating layer formed by the (3) (resin) resin.
Also, since the putty coating method in which the radon component is reduced according to the present invention is used by using only the powdery putty composition as needed in the field, the putty composition left after use is kept in a closed state and can be used later.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (5)
Wherein the powder is packaged and stored in a container, and the powder is mixed with water and applied to a wall in use.
Wherein the powder further comprises 0.3 to 0.5 parts by weight of a thickener, 0.3 to 0.5 parts by weight of a peroxidizing agent, and 0.05 to 0.1 part by weight of a defoaming agent.
Characterized in that the powder further comprises 1 to 5 parts by weight of natural fibers and 0.03 to 0.1 parts by weight of retardant.
Mixing the composition with water to prepare the pasty putty;
Applying the pasty paste to the wall;
Wherein the radon component is reduced.
Wherein the putty in the paste state of step S2 is mixed with 60 to 70 parts by weight of water relative to 100 parts by weight of the composition.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200040957A (en) * | 2018-10-10 | 2020-04-21 | 이환희 | Putty for blocking harmful substances and method for making the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200040957A (en) * | 2018-10-10 | 2020-04-21 | 이환희 | Putty for blocking harmful substances and method for making the same |
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