KR101802196B1 - Spray composition for interior materials having sericite - Google Patents

Abstract

Disclosed is a spray composition for an architectural interior material which is excellent in anion release performance and can be easily applied by spraying, as well as blocking harmful substances generated by a synthetic material. To this end, a spray composition for building interior material is provided, which comprises 100 parts by weight of a filler gas, 30 to 70 parts by weight of a sericite powder, 40 to 60 parts by weight of a solvent, and 10 to 20 parts by weight of a binder resin. Since the ease of construction is remarkably improved in the present invention, it is possible to easily install the building in a room of a general public, so that no construction cost is incurred in construction of the building.

Description

[0001] SPRAY COMPOSITION FOR INTERIOR MATERIALS HAVING SERICITE [0002]

The present invention relates to a spray composition for building interior materials which can be easily sprayed into a building interior material through spraying. More particularly, the present invention relates to a spray composition for building interior material which is excellent in anion release performance and which not only blocks harmful substances generated by synthetic materials, To a spray composition for building interior material which can be easily applied.

Concrete structures, such as houses, offices, and public buildings, which are living spaces of modern people, are the mainstream. Cement, which is the main component of concrete, reacts with organic impurities and water, It releases harmful ammonia gas and formaldehyde.

When specific odors or toxins originate from these harmful substances are inhaled into the human body, they cause skin and mucous membrane disorders, various kinds of cancer, skin diseases, atopy, allergy, asthma and pneumonia. .

In addition, although the interior materials for interior decoration mostly use chemical materials, these interior materials are used indiscriminately in new apartment buildings without an objective verification procedure for environmentally friendly performance.

Recently, the problem of prevention of Sick House Syndrome (Sick House Syndrome) and Sickness Syndrome and the problem of cleaning indoor air pollution caused by chemical substances generated from indoor interior materials has received a great deal of attention. In order to ensure a pleasant indoor air environment, Research on the development of finishing materials and interior materials that can fundamentally block and eliminate the causes of pollutants has been actively conducted.

As part of such efforts, researches on photocatalyst compositions which can be applied to interior materials of indoor buildings or coated on walls or applied to walls to suppress generation of harmful substances and improve air quality can be cited.

Generally, titanium dioxide (TiO2) is widely used as a photocatalyst. The photocatalyst is excellent in acid resistance, alkali resistance, and the like, is harmless to human body, and oxidizes and decomposes various contaminants into harmless water and carbon dioxide gas. Since bacteria are also organic compounds, they are oxidized and decomposed due to the strong oxidizing action of titanium and sterilized.

However, the photocatalyst has a disadvantage in that harmful substances can not be removed from the room where the light does not enter well, the inside of the furniture, and the sunset. In addition, it is not effective at low temperatures, and there is a disadvantage that the weatherability problem occurs due to the use of an inorganic binder and the life thereof is shortened.

Accordingly, there is a growing need for a building interior material capable of removing various harmful elements by using a functional natural material as a main material while excluding the use of chemical materials such as synthetic resin as much as possible.

Korean Patent Publication No. 10-2012-0043459 (published May 4, 2012) Korean Registered Patent No. 10-1479643 (Announced 2015.01.08) Korean Patent No. 10-0591783 (2006.06.26 announcement)

Accordingly, it is an object of the present invention to provide a method and a system for cutting off various volatile organic compounds including radon and formaldehyde emitted from cement, improving the health of residents by increasing far infrared rays and anion emission, And to provide a spray composition for an interior material.

In an embodiment of the present invention, 100 parts by weight of a filler gas, 30 to 70 parts by weight of a sericite powder, 40 to 60 parts by weight of a solvent, and 10 to 20 parts by weight of a binder resin are included The present invention provides a spray composition for a building interior material.

According to the present invention, it is possible to replace paints, wallpaper, paints, and the like that require expert construction. In other words, since the ease of construction is remarkably improved according to the present invention, it is possible to easily install the building in a room of a general public, so that no construction cost is incurred in construction of the building.

In addition, even though the present invention is applied to the inner wall of a building through a spray spraying method, it is firmly attached to the inner wall of the building, and no wastes are generated even after long time passes.

In addition, the present invention can block various harmful substances, provide deodorization, antibacterial and antifungal performance, and provide indoor air in a clean and pleasant environment due to humidity control.

In addition, the present invention can promote residents' health by promoting blood circulation of residents by emitting a large amount of far-infrared rays and negative ions.

1 is a flow chart for explaining a method for producing a spray composition according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a spray composition for architectural interior materials (hereinafter abbreviated as 'spray composition for building interior materials') using the sericite according to preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The spray composition for a building interior material according to an embodiment of the present invention includes a filler gas, a sericite powder, a solvent, and a binder resin, and may further include a natural dye.

Each of these components functions together by chemical action. Therefore, the present invention can be said to have a specific combination of various composition combinations and combinations thereof, rather than depending only on a specific functional ingredient.

A spray composition for an architectural interior material according to an embodiment of the present invention includes a fill gas.

The filled gas serves as a propellant for spraying the spray composition onto the building interior and is a gas which is selected from the group consisting of liquefied natural gas (LNG), liquefied petroleum gas (LPG), butane gas, isobutane gas and propane gas Is preferably used.

If necessary, a mixed gas in which dimethyl ether is further mixed may be used as the filling gas. These dimethyl ethers facilitate spraying at low pressures, increase pyroxene, and enhance penetration.

The spray composition for building interior according to an embodiment of the present invention includes a solvent.

The solvent is added to dissolve and mix the sericite powder and the binder resin, and ethanol or the like may be used.

Water may be used as a solvent for the wall-building material used in general building interior materials. However, when water is used as a solvent for the spray composition, the temperature of the container may be lowered due to the heat of vaporization during spraying, have. On the other hand, ethanol has a freezing point lower than that of water, so that it does not cause problems in the interior of the container due to the heat of vaporization, and is harmless to the human body.

More specifically, ethanol may be used only as a solvent, or 80 to 90% by weight of ethanol and 10 to 20% by weight of water may be mixed for use in order to reduce the cost.

Such a solvent is contained in an amount of 40 to 60 parts by weight based on 100 parts by weight of the total spray composition for building interior materials so as to uniformly and smoothly coat the inside surface of the building or the surface of the building interior material.

When the content of the solvent is less than 40 parts by weight in the spray composition for architectural interior materials, not only the respective components of the composition are easily mixed but also the viscosity of the composition is increased so that it is difficult to smoothly coat the inner surface of the building or the surface of the building interior material do. On the other hand, when the solvent content is more than 60 parts by weight in the spray composition for building interior materials, the viscosity is lowered and the adhesive strength of the binder resin is lowered, which makes it difficult to uniformly coat the surface of the building interior material, As a result, the workability is lowered.

The spray composition for building interior according to an embodiment of the present invention includes sericite powder.

The sericite powder, which is the main material of the spray composition for architectural interior material of the present invention, promotes blood circulation of the human body, emits 90% or more of far-infrared rays for activating cell activity, absorbs various harmful substances And 30 to 70 parts by weight based on 100 parts by weight of the total spray composition for building interior material.

If the content of the sericite powder in the spray composition is less than 30 parts by weight, sufficient anion and far-infrared rays can be provided to a person residing inside the building, but it is difficult to impart flame retardancy and electromagnetic wave shielding effect to wallpaper. And when the content of the sericite powder exceeds 70 parts by weight, the durability of the coating layer formed of the spray composition on the surface of the building interior material is lowered by the spraying method.

This sericite is a type of clay minerals, the color of which is silver white, and the silk gloss is strong. Mineralogically, it belongs to the mica group. Its chemical composition and crystal structure are similar to muscovite, the far-infrared emissivity is about 93%, the anion generation is about 700 / cc and the safest anion, It has a function to adsorb various harmful substances. It is also known that the sericite has an alkaline pH of 8.8, so it has excellent antioxidant and neutralizing action at acidified sites.

Far infrared rays emitted from the sericite infiltrate skin cells to cause air-conditioning vibration in water molecules of each cell to activate cell tissue to promote metabolism of the human body, improve blood circulation, and enhance deodorizing power. In addition, sericite radiates alpha (α) waves to inhibit harmful bacteria generation by more than 70%, adsorbs and decomposes heavy metals, organic matter, odor and germs, and provides abundantly beneficial minerals to the human body.

Such sericite forms a majority of the coating layer formed of the spray composition for building interior material through the drying process in which the solvent is evaporated, thereby providing wall paper with flame resistance and electromagnetic wave shielding function. For example, when the coating layer containing the solvent contains less than 60 parts by weight of the sericite powder, it is possible to emit a far-infrared ray useful for the human body and radiate an anion capable of attaining a function of adsorbing harmful substances. Flame retardancy and sufficient electromagnetic wave shielding effect can not be given.

On the other hand, the sericite powder is obtained by crushing sericite in a crusher, and the average grain size of the sericite powder is preferably 1 to 10 mu m. At this time, if the average grain size of the sericite powder exceeds 10 탆, the mixture of the sericite powder and the solvent and the binder resin may not gel properly and clogging of the spray nozzle may occur.

And when the average grain size of the sericite powder is less than 1 탆, the physical properties of the spray composition for building interior material are not improved against the crushing cost of the sericite powder.

The spray composition for a building interior material according to an embodiment of the present invention includes a binder resin.

The binder resin increases the bonding force between the sericite powder particles as the main material and forms a coating layer together with the sericite powder. In addition, 10 to 20 parts by weight, based on 100 parts by weight of the total spray composition for architectural interior materials, is used for attaching the spray composition for building interior material to the interior material such as the inner side of a building or wallpaper.

If the content of the binder resin is less than 10 parts by weight, the adhesive strength is deteriorated and it is not smoothly adhered to the inner surface of the building or the surface of the building interior material. If the content of the binder resin exceeds 20 parts by weight, cracks may be generated after the coating layer is dried, and the use amount of the sericite powder is relatively decreased, thereby lowering the functionality of the coating layer by the sericite powder.

When a water-soluble acrylic resin is used as the binder resin, it is eco-friendly because there is no release of VOC harmful to the human body.

As the water-soluble acrylic resin, butyl acrylate / styrene polymer is preferably used. Specific examples thereof include 10 to 50% by weight of methyl methacrylate, 2 to 10% by weight of butyl acrylate, 0.1 to 2% by weight of (meth) 5 to 20% by weight of n-butyl acrylate, 5 to 10% by weight of ethyl acrylate, 5 to 10% by weight of 2-hydroxymethacrylate, 5 to 10% by weight of hexylethyl acrylate, 10 to 30% It is preferable to use an emulsion polymer in which the resin polymerized in% is dispersed in water. At this time, it is preferable to use an acrylic resin having a solid content of 45 to 55% by weight.

More specifically, the water-soluble acrylic resin preferably has a viscosity of 5,000 to 15,000 mPas and retains a viscosity (THIXO) at which the viscosity decreases under a shear force and the viscosity increases when the shear force disappears. If the viscosity is less than 5,000 mPas, it is not preferable because the binder penetrates into the structure or sinks to the lower surface and the surface of the finishing material becomes more curved. When the viscosity is less than 15,000 When the mPas is exceeded, the coating property is not good and it is not suitable for working.

On the other hand, in order to impart various colors to the coating layer, natural dyes can be further mixed and used in a spray composition for building interior materials. Such natural dyes can be used by appropriately changing the addition ratio according to the color tone.

The natural dyes may be selected from the group consisting of vegetable dyes such as gardenia, yellow whites, safflowers, ellipses, indigos, pine needles, animal dyes such as cochenille, kermes or mineral dyes such as perilla, Dyes can be used.

Particularly, in order to form a pattern having various colors on a coating layer, it is possible to use a coloring agent such as a yellow color, a yellow color, a copper color and a yellow color to express a yellow color, In order to be able to use pigments of Tang Red, Yellow, Quartz and Burnt Red. In order to express the color of the green system, it uses the lower leaves, the seokhwa, the thrush, and the eruption. In order to express the color of the blue system, You can use Cheonghwa Mok, Lee Cheong, and Sam Cheong. Also, in order to express the color of the white system, it is possible to use the pine flower to express the true color or the black color and the black color.

The spray composition for building interior according to an embodiment of the present invention may further include an additive.

The additive is added to the spray composition for building interior material in order to improve the flowability of the final mixture or to enhance the property, and any additive may be used as long as it is added to a spray composition applied to a wallpaper used as a finish agent Includes a mixture of at least one selected from the group consisting of a thickener, a dispersant, a defoaming agent, and an antibacterial agent.

In a specific embodiment, the spray composition for building interior materials comprises 0.3 to 0.6 parts by weight of a thickener, 0.5 to 0.8 parts by weight of a dispersing agent, 0.05 to 0.2 parts by weight of an antifoaming agent, 0.3 to 0.7 parts by weight of an antimicrobial agent, Additives may be included.

Specifically, the thickener is used to increase the viscosity of a spray composition for building interior materials, and it is preferable to use a starch, or a hydrophilic clay gelling agent. If the content of the thickener is less than 0.3 parts by weight, the viscosity of the spray composition applied to the building interior material decreases. When the content of the thickener exceeds 0.6 parts by weight, the viscosity of the spray composition applied to the building interior material increases, .

The dispersant accelerates the dispersion of the natural dye and suppresses the separation phenomenon between the sericite powder and the binder resin. The acrylic acid copolymer sodium salt, the carboxylic acid ether, the aromatic aminosulfonic acid, the polyalkylarylsulfonic acid , And naphthalenesulfonic acid can be used, and it is preferable to use an acrylic acid copolymer sodium salt. If the content of the dispersing agent is less than 0.5 parts by weight, the dispersing ability is lowered and it becomes difficult to produce a uniform composition. If the content of the dispersing agent is more than 0.8 parts by weight, the dispersing speed may be increased and the quality may be deteriorated.

The antifoaming agent serves to lower the surface tension of the spray composition to remove bubbles, and it is preferable to use an organic antifoaming agent. If the amount of the defoaming agent is less than 0.05 part by weight, foaming is formed to make it difficult to uniformly apply the coating agent. If the amount of the defoaming agent exceeds 0.2 part by weight, no significant effect can be obtained.

As the antibacterial agent, propolis, phytoncide extract or a mixture thereof may be used. These ingredients play an important role not only in preventing fungus but also in smelling the odor caused by the living environment in order to create a more pleasant environment. If the content of the antibacterial agent powder is less than 0.3 parts by weight, the antibacterial activity of the spray composition for architectural interior materials is lowered. If the content of the antibacterial agent powder exceeds 0.7 parts by weight, the mechanical properties of the spray composition for architectural interior materials are lowered and the cost is increased .

The spray composition for an architectural interior material according to an embodiment of the present invention may further include silica airgel and inorganic fibers.

Since the silica airgel has a function of high transparency and low thermal conductivity, it plays a role of improving fire resistance and heat insulation based on diffused pores, and sodium silicate can be used.

Such a silica airgel can be obtained by drying the structure of the wet gel without modification, and is a very large specific surface area having a porosity of 80 to 99.87% and a pore size of 1 to 50 nm.

It is preferable that the silica airgel contains 3 to 5 parts by weight based on 100 parts by weight of the filler gas, because it can exhibit the properties required in the present invention.

The inorganic fibers serve to seat the silica airgel together with the binder resin.

Examples of such inorganic fibers include functional inorganic fibers such as ceramic fibers and metal fibers, carbon fibers, silicate fibers (glass fibers, silica fibers, silica fibers, ceramic fibers) and potassium titanate fibers excellent in heat resistance such as alumina, zirconia, silicon carbide, Can be used.

It is preferable that 2 to 4 parts by weight of the inorganic fibers are contained based on 100 parts by weight of the filler gas, because the inorganic fibers can exhibit the physical properties required in the present invention.

The above-mentioned spray composition for building interior material is applied to building interior material in a range of 0.1 to 0.5 mm. When the thickness of the coating layer is less than 0.1 mm, the functions such as flame retardance and electromagnetic wave shielding can not be achieved, and in particular, a decrease in smoothness caused by moisture or the like at the time of construction can not be prevented. On the other hand, if the coating is applied in excess of 0.5 mm, a problem that the thick coating layer is broken may occur, and problems such as separation from the inner side of the building or the building interior material may occur.

The spray composition for architectural interior material can be applied 0.1 to 0.5 mm through one application. When such a spray composition is applied, not only flame retardation and electromagnetic wave shielding effect can be achieved, but also effects such as humidity control, deodorization, antibacterial and air purification in the room and durability can be expected. In the case of forming the coating layer by one coating as described above, the manufacturing process is simple and the production efficiency is improved, and the manufacturing cost can be reduced.

In addition, the coating layer may be selectively formed by coating two or more times. For example, when the coating is applied twice, it includes the first coating layer coated with 0.07 to 0.4 mm and the second coating layer coated with 0.03 to 0.3 mm. At this time, it is preferable that the first coating thickness is larger than the second coating thickness.

When the coating layer is formed by coating one time, it takes a long time to dry the coating layer, and it is difficult to apply the coating layer uniformly at one time, and the bonding strength between the coating layer and the building interior material is weakened. In addition, there is a higher probability that cracks will occur in the coating layer in the course of moisture escaping from the inside of the thick coating layer. Further, since moisture is released from the inside of the coating layer, the coating layer is formed in a dull and sparse state, and the coating layer may be easily damaged.

Therefore, the coating layer is formed by dividing the coating layer two or more times, and therefore, it is more preferable that the coating layer is formed in two or more layers.

BEST MODE FOR CARRYING OUT THE INVENTION One embodiment of a method for producing a spray composition for building interior materials of the present invention will be described in detail with reference to the drawings.

1 is a flow chart for explaining a method for producing a spray composition according to the present invention.

Referring to FIG. 1, a method of manufacturing a spray composition according to the present invention includes a mixture preparation step (S100) for mixing a sericite powder with a solvent and a binder resin, a first injection step (S200) for injecting the mixture into a hermetically sealed container, And a second injection step (S300) of injecting the filling gas into the hermetically sealed container.

In the preparation of the mixture (S100), 30 to 70 parts by weight of the sericite powder, 40 to 60 parts by weight of the solvent and 10 to 20 parts by weight of the binder resin are mixed based on 100 parts by weight of the filler gas and stirred for 20 to 50 minutes, . If desired, the spray composition for building interior materials may further contain additives.

If the stirring time is less than 20 minutes, the mixture of the sericite powder, the solvent and the binder resin is not uniformly mixed, and if the stirring time is more than 50 minutes, the binder resin is cured and the application of the next step can not proceed.

In the first injection step (S200), the mixture prepared through the mixture preparation step (S100) is injected into the closed container.

In the second injection step (S300), 100 parts by weight of the fill gas is filled in the closed container at a pressure of 5 to 10 kg / cm < 2 >, and then the injection device is mounted.

The spray composition prepared by the above-described method can be applied to the building interior material through the spraying apparatus to a thickness of 0.1 to 0.5 mm. When such a spray composition is applied, not only flame retardation and electromagnetic wave shielding effect can be achieved, but also effects such as humidity control, deodorization, antibacterial and air purification in the room and durability can be expected.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments. It should be noted, however, that the present invention is not limited to the following examples.

EXAMPLES Preparation of spray compositions

1. 450 g of a sericite powder having an average particle size of 5 μm, 500 g of ethanol as a solvent and 150 g of a butyl acrylate / styrene polymer as a binder resin were charged into the reactor and stirred at 800 rpm for 30 minutes to form a mixture.

2. 1100 g of the mixture was poured into a completely closed container, and 100 g of dimethyl ether as a filling gas was filled at a pressure of 8 kg / cm 2, and then the injection device was mounted.

<Comparative Example>

A spray composition was prepared in the same manner as in Example, except that 500 g of the above-mentioned 500 g of ethanol was used to prepare a spray composition contained in a closed container.

EXPERIMENTAL EXAMPLE 1 Flame Retarding Effect Experiment

A commercially available wallpaper was purchased, and the spray composition prepared according to the example was applied to the wallpaper to a thickness of 0.5 mm to form a coating layer. And the experiment was carried out on the flame resistance using the wallpaper with the coating layer and the general wallpaper.

Flame-proofing experiments were carried out in accordance with KOFEIS 1001, a flame-retardant test method generally used, and the results are shown in Tables 1 and 2.

According to Tables 1 and 2, the flame-retardant function of the building interior material using the spray composition for building interior material of the present invention is excellent.

[Experimental Example 2]

An experiment for measuring the amount of generated negative ions was performed on the above examples.

The measurement of anion generation amount was carried out in accordance with KICM-FIR-1042, which is an experimental method for measuring the amount of generated negative ions, and the results are shown in Table 2 below.

Table 3 shows that the spray composition coated on the building interior material emits a large amount of negative ions.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. It can be understood that it is possible.

Claims (7)

100 parts by weight of a filler gas;
30 to 70 parts by weight of a sericite powder;
40 to 60 parts by weight of a solvent which is a mixture of 80 to 90% by weight of ethanol and 10 to 20% by weight of water;
10 to 20 parts by weight of a binder resin;
3 to 5 parts by weight of silica airgel; And
And 2 to 4 parts by weight of an inorganic fiber for placing the silica airgel together with the binder resin. The method according to claim 1,
And 10 to 20 parts by weight of a natural coloring matter. 2. The spray composition according to claim 1, wherein the average grain size of the sericite powder is 1 to 10 mu m. delete delete The method of claim 1,
Wherein the composition is at least one gas selected from liquefied natural gas (LNG), liquefied petroleum gas (LPG), butane gas, isobutane gas and propane gas. The spray composition for building interior material according to claim 1, wherein the binder resin is a water-soluble acrylic resin.

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