KR20160144709A - Multi-layer tile for purifying air - Google Patents

Abstract

The present invention relates to a multilayer tile for air purification in which a loess-carbon particle composite molded body layer (200) formed by mixing loess and carbon particles with a plastic clay is coupled to a ceramic support layer (100), so that the multilayer tile functions as a tile for interior material for construction and, at the same time, provides an excellent air purification and deodorizing effect and is easy to manufacture and install.

Description

[0001] MULTI-LAYER TILE FOR PURIFIING AIR [0002]

The present invention relates to a multi-layer tile for air cleaning. More particularly, the present invention relates to a tile for indoor air purification that has an excellent air purification function and has a long product life and is easy to install.

In general, the air we breathe has fine dust, bacteria, etc. and spreads the odor. Especially, when yellow dust occurs, the air is very contaminated by many sand and fine dusts, which adversely affects human bronchi. In addition, volatile organic compounds (VOCs) are easily vaporized into the atmosphere due to high vapor pressure. When they coexist with nitrogen oxides in the air, they generate photochemical reactions under the action of sunlight to generate photochemical oxidizing substances such as ozone and PAN, . These volatile organic compounds are carcinogenic substances, and they are the cause of air pollution and global warming. At this time, since the organic solvent is in a liquid state, it is possible to facilitate the discharge control, but it is difficult to manage the VOC gas because it exists in a gaseous state.

Air purifiers and purifiers are used to remove fine dust, bacteria, odors, VOCs, etc. present in the air or water quality. Activated carbon is the most widely used material currently used.

Activated carbon has a carbonized inner mesh structure, and it has a far infrared ray radiation effect and excellent adsorption ratio of various foreign substances. Therefore, it can be applied to a variety of fields such as an air conditioner at home, an industrial field, a filtration filter using a reverse osmosis Is widely used in the field. However, when the internal pore is saturated with contaminants, activated carbon does not function as a filter anymore, so it is necessary to periodically replace with activated carbon. Therefore, it is necessary to improve the lifetime of the activated carbon in terms of economy and environment.

The conventional air purifying tiles are variously known to use photocatalysts, far-infrared rays, anion minerals, etc. However, these conventional methods are not capable of collecting and decomposing VOCs particles and odorous particles, The purification effect was minimal.

Korea Publication No. 2013-0030381 (published on March 27, 2013) Korea Open Publication 2012-0119475 (published on October 31, 2012)

An object of the present invention is to provide an air purification double layer tile having an air purification function capable of removing fine dust, bacteria, odor, VOC, etc. present in the air.

It is an object of the present invention to provide a ceramic green sheet comprising a loess-carbon particle composite molded body layer comprising 5 to 15 parts by weight of a plastic clay and 3 to 15 parts by weight of carbon particles, and a ceramic support layer bonded to the composite formed body layer, Wherein the air-permeable double-layer tile is made of a metal.

Further, the ceramic support layer may have a seating portion, and the composite molding layer may be seated on the seating portion.

In addition, the seating portion may be recessed on the ceramic support layer.

Further, the composite formed body layer may be in the form of a plate, and a part of the thickness may be located outside the ceramic support layer.

The green loess-carbon particle composite formed body layer may have a specific surface area of 60 to 200 m ² / g as measured by the BET method and a density of 5.1 to 7.4 g / cc.

Wherein the anion mineral is selected from the group consisting of P ₂ O ₅ , Ce ₂ O ₃ , La ₂ O ₃ , Nd ₂ O ₃ , ThO ₂ , At least _{two selected from} Pr ₂ O ₃ , SiO ₂ , Sm ₂ O ₃ , CaO, Fe ₂ O ₃ , TiO ₂ , ZrO ₂ , Y ₂ O ₃ , Gd ₂ O ₃ , Dy ₂ O ₃ and SO ₃ .

The carbon particles contained in the composite formed body layer may include at least one of activated carbon, char, carbon nanotube, graphite, and carbon black.

An adhesive layer may further be provided between the loess-carbon particle composite formed body layer and the ceramic support layer.

The composite formed body layer may have an area of 20 to 90% of the area of the ceramic support layer.

The ceramic support layer may include at least one selected from nano silver, an anionic mineral, and a photocatalyst material.

The thickness of the loess-carbon particle composite formed body layer may be 2 to 30 mm.

The loess-carbon composite composite molded body layer used in the air-cleaning duplex tile of the present invention has a function of decomposing VOCs and odor particles due to a large amount of microorganisms without being fired, and is easy to adsorb dust, VOCs and odor particles since it is porous, Far infrared ray is emitted and anion is released, so that the antibacterial and deodorizing function is excellent. Therefore, when the layer of the green loam - carbon particle composite is applied to the tile, it is possible to remove fine dust, bacteria, odor, and VOC that are present in the air by the convection phenomenon of the room air.

Such substances (micro dust, bacteria, odor, VOC, etc.) that are harmful to the human body are removed, which can help the user's health and is effective in preventing air pollution. In addition, the air-cleaning multi-layer tile of the present invention does not require any other energy to purify the air, thereby preventing secondary environmental pollution and also preventing global warming.

Further, since the loess-carbon composite composite molded body layer used in the air-cleaning duplex tile of the present invention does not undergo a high-temperature sintering process and has a strength lower than that of general tiles, it is bonded to the ceramic support layer. It is possible to mount and detach the ceramic support layer by using an adhesive layer such as a double-sided tape, an adhesive or an adhesive, and to replace the ceramic support layer.

1 is a perspective view of a multi-layer air-cleaning tile according to an embodiment of the present invention.
2 is a cross-sectional view of an air-cleaning multi-layer tile according to an embodiment of the present invention. 1 is a cross-sectional view taken along line II-II in Fig.
3 is a cross-sectional view of an air-cleaning multi-layer tile according to another embodiment of the present invention.
4 is a plan view of an air-cleaning multi-layer tile according to another embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail with reference to the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the technical concept of the present invention, are incorporated in and constitute a part of the specification, and are not intended to limit the scope of the present invention.

The conventional loess material was able to have excellent strength by carrying out the firing (heating to 800-1300) process after the drying process. However, when the sintering process is carried out, the specific surface area of the formed body is reduced, and the microorganisms and enzymes derived from the inside of the loess can not withstand the high temperature and disappear. In addition, although activated carbon has a very large specific surface area, it has excellent ability to remove microorganisms and VOCs and is used in various air filtration apparatuses and polluted water quality purification apparatuses. However, when used over a certain period of time, It was difficult to obtain a certain purification performance by replacing with new activated carbon.

However, the present invention is capable of removing harmful substances (malodor, VOC, fine dust, bacteria, etc.) by mixing the plastic clay and the loess with the activated carbon, Carbon particle composite molded body layer having a long-lasting purifying performance compared with that of the conventional tile.

Hereinafter, the present invention will be described in detail.

When the specific surface area of the loess-carbon composite composite molded body of the present invention is at least 50% by weight of loess and has a specific surface area of 60 to 200 m 2 / g or more as measured by the BET method and a density of 5.1 to 7.4 g / cc, It showed that the decomposition and deodorization effect of VOC was superior to that of the used molded body, and the holding time of the purification performance was maintained longer than that of the molded body composed of activated carbon alone.

Yellow Soil (Hwangto) in the present invention means a weathered soil (weathered soil) in which the rocks have undergone chemical weathering and changed into soil (J. Miner. Soc. Korea, 13, 147-163 ) Reference). Horticulture is a type of soil, and it is a weathering product of rocks. Therefore, color, composition, physico-chemical properties, etc. may appear depending on the kind of original rocks and degree of weathering. For example, the chemical composition is composed mainly of 45-55 wt% of silicon dioxide, 20-30 wt% of alumina, 10-20 wt% of ferric oxide, and is composed of titanium dioxide, magnesium oxide, calcium oxide, sodium oxide, Potassium, and the like in an amount of 0 to 15%, but this is only an illustrative example.

Hwangto is rich in various minerals such as calcium carbonate, silica, alumina, iron, magnesium, sodium and potassium, various enzymes such as catalase, diphenoloxidase, saccharase and protease, and a variety of enzymes such as Bacillus, Pesudomonas and Nitrosomonas It contains microorganisms. At this time, the enzyme plays a role of toxin removal, degradation, and purification, and microorganisms decompose VOC, especially decomposing odor into carbon dioxide and water.

The yellow loess used in the present invention is a porous material, for example, a honeycomb structure having a large surface area, and many sections have a multi-layer structure. Far infrared rays are absorbed and stored in the pores of the loess, and are known to be released. In addition, loess is a porous material having a high specific surface area, and thus has excellent ability to adsorb fine dust, bacteria, odors, and the like.

Accordingly, the layer of the green loam-carbon composite molded body according to the present invention contains a large amount of various organic substances, such as enzymes and microorganisms, contained in the loess in the surface and pores of the composite molding, It is possible to improve the air purification performance and the service life of the yellow loos-carbon particle composite formed article. Of course, microorganisms and other organic substances contained in the loess other than the microorganisms mentioned above are included in the scope of the present invention. The yeasts and microorganisms present in the yellow loose-carbon particle composite molded article of the present invention can be easily detected by a method of culturing microorganisms collected from the composite formed article.

The plastic clay of the present invention further increases the ocher's viscosity and allows molding of the loam-carbon particle composite formed article to have excellent strength even if only the drying step is not carried out. Further, it is preferable that the plastic clay is maintained in shape and strength during molding even if water is dried after forming the desired shape by adding water. For example, one or two selected from the group consisting of bentonite, germanium, montmorillonite and sericite More than species. In this case, it is preferable to use bentonite or montmorillonite.

The plastic clay is composed mainly of 71-73% by weight of silicon dioxide and 14-16% by weight of alumina, and at least two of iron oxide, 11-15% by weight, and in the case where the content of natural plastic clay is not sufficient, the necessary components may be added.

The carbon particles are included in the composite molded body to increase the specific surface area in order to have the ability to collect VOCs, odor particles and fine dusts. Generally, carbon particles such as activated carbon, charcoal, carbon nanoparticles, carbon black, graphene, Or a mixture of two or more of them may be used.

The anolyte mineral used in the present invention may contain an anion mineral which is capable of releasing anion to further improve antibacterial and odor particle removal performance. The anion mineral used in the present invention may be P ₂ O ₅ , _{Ce 2 O 3, La 2 O} 3, Nd 2 O 3, ThO 2, Pr 2 O 3, SiO 2, Sm 2 O 3, CaO, Fe 2 O 3, TiO 2, ZrO 2, Y 2 O 3, Gd ₂ O ₃ , Dy ₂ O ₃ , and SO ₃ .

Alternatively, the loess-carbon particle composite formed body layer of the present invention may further comprise a chamois. Chamoth is a material that is fired at about 1450. When chymotte is added, it acts as a skeleton so that the shape of the loam-carbon particle composite body can be maintained by the drying process alone. The loess-carbon composite composite molded body layer of the present invention can maintain the formed shape even with only the plastic clay and the yellow loess, but the more rigidly formed shape is maintained when the chamomile is added. In this respect, the chamois preferably further comprises 5 to 10 parts by weight of chamois per 100 parts by weight of the mixture of the plastic clay, the carbon particles and the yellow clay. Wherein the chamois comprises 50-60 wt% silicon dioxide, 30-37 wt% alumina, 1-5 wt% iron trioxide, 1-5 wt% titanium dioxide, 0.1-2.0 wt% magnesium oxide, 0.01-0.1 wt% calcium oxide, 0.01 to 0.1 wt% of sodium oxide, and 0.1 to 2.0 wt% of potassium oxide.

There is no particular limitation on the shape of the loamy-carbon particle composite formed body layer according to the present invention, and it may be formed into a particle shape, a cylindrical shape, a plate shape, a polygonal shape, or the like, and a plate shape is most preferable for bonding with a ceramic support. The shape of the upper surface of the plate-like shape is a quadrangle similar to the shape of the tile, but it is also possible to use a shape such as a circle, a triangle, a polygon, etc., or a shape that gives a visual aesthetic by utilizing a shape such as a flower pattern or an animation character.

The composition of the ceramic support layer of the present invention is not particularly limited as long as it is a composition that can be used as a tile for building interior decoration. However, it may contain at least one of nanosilver, anion mineral, and photocatalyst material to improve air purification function.

Hereinafter, an embodiment of the air-cleaning multi-layer tile according to the present invention will be described in detail.

FIG. 1 is a perspective view of a multi-layer air-cleaning tile according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the air-cleaning multi-layer tile according to an embodiment of the present invention, taken along line II-II of FIG.

As shown in FIGS. 1 and 2, the air-cleaning multi-layer tile 10 according to the present invention has a structure in which a layer 20 of the yellowish-carbon composite molded body 200 is bonded onto a ceramic support layer 100. The ceramic support layer 100 may be a tile mainly composed of ceramics which is generally used, and the main function is to easily bind the layer of the loam-carbon composite molded body to the wall of the building. However, since the loess-carbon particle composite formed body layer 200 is manufactured only by the drying process without the firing process, the strength of the loess-carbon composite molded body layer 200 is weaker than that of the ceramic tile, There is a certain limit to use as an interior material alone. Therefore, in the case of the structure in which the loess-carbon particle composite formed body layer 200 is formed on the ceramic support layer 100 as in the present invention, the boron-carbon composite formed body layer 200 having the desired strength as the building interior material, An air purification effect can be obtained. The size of the ceramic support layer 100 can be any size as long as it is a generally used tile. When considering the bonding with the green loess-carbon particle composite formed body layer 200, the thickness of the ceramic support layer 100 is 20 to 500 mm .

The green loose-carbon particle composite formed body layer 200 can be air-cleaned even if it is attached to various wall surfaces alone without using a ceramic support layer. However, when used for a ceramic support layer, it is easy to attach and detach, and it is advantageous in that it is easy to construct as an interior material.

A method in which the layer of the loess-carbon particle composite formed body 200 is bonded to the top of the ceramic support layer 100 and the layer is adhered using the adhesive layer 300 may be used. As shown in FIG. 2, the loess-carbon composite molded body 200 is bonded to the ceramic support layer 100 using an adhesive layer. The adhesive layer 300 may be a double-sided tape, an animal adhesive, a vegetable adhesive, a synthetic adhesive or the like, and is not particularly limited as long as it can adhere the loess-carbon particle composite formed body layer 200 on the ceramic support layer. If a double-faced tape or an adhesive is used for the adhesive layer, the adhesive layer can be attached and detached, thereby facilitating the replacement.

Fig. 3 is a cross-sectional view of the same position as Fig. 2, showing another embodiment. As shown in FIG. 3, when the seating part 101 is formed on the ceramic supporting layer 100, the coupling between the loess-carbon composite molding formed body 200 and the ceramic supporting layer 100 becomes easier. When the tile is used as an interior material of a building, it is generally attached to a wall surface and placed vertically to receive gravity, so that a stronger and more stable coupling is possible when the seating portion 101 is present. Further, if the loess-carbon particle composite formed body layer 200 is formed in accordance with the size of the seating portion 101 of the ceramic support layer 100, bonding without the adhesive layer 300 is possible.

3 (a) shows a structure in which a part of the ceramic supporting layer 100 is recessed in forming the seating part 101. In FIG. It is preferable that a part of the composite formed body layer 200 is protruded to the ceramic support layer 100 when the loess-carbon particle composite formed body layer 200 is coupled to the seating part 101. However, It may be formed to be similar to or lower than the portion without the seat portion. FIG. 3 (b) is a view showing that the seating portion 101 is formed by forming the convex portion 102 on a part of the upper surface of the ceramic supporting layer 100 having the same thickness. The convex portion 102 may have any shape as long as it has a structure in which the loess-carbon composite molded body can be seated, and may be formed as a single piece, or may be formed only at a corner portion.

The loess-carbon particle composite formed body layer 200 is formed with an area of 20 to 90% of the area of the upper surface of the ceramic support layer. If the loess-carbon composite molded body 200 is too small in terms of the ceramic support layer 100, it is difficult to expect a sufficient air cleaning effect. If the loess-carbon composite molded body layer 200 is too large, it is difficult to form a seat part and the function of the ceramic support layer is difficult to manifest sufficiently.

1 to 3 show that one loess-carbon particle composite formed body layer 200 is formed on one ceramic support layer 100. However, as shown in FIG. 4, a plurality of loess- It is also possible to form the carbon particle composite molded body layer 200. In particular, when the ceramic support layer 100 is formed largely, two or more loess-carbon particles composite formed body layers 200 may be placed on one ceramic support layer 100. As shown in FIG. 4 (a), a plurality of complex formed bodies may be placed on one seating portion 101, and each of the complex formed bodies may be placed on a plurality of seating portions 101 as shown in FIG. 4 (b).

The above-described embodiments are illustrative of the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims (11)

5 to 15 parts by weight of the plastic clay and 3 to 15 parts by weight of the carbon particles with respect to 100 parts by weight of the loess;
A ceramic support layer bonded to the composite formed body layer;
Wherein the tile comprises a plurality of tiles. The method of claim 1,
Wherein the ceramic support layer is provided with a seating portion,
Wherein the composite molded body layer is seated on the seat portion. 3. The method of claim 2,
Wherein the seating portion is recessed on an upper portion of the ceramic support layer. 4. The method of claim 3,
Wherein the composite formed body layer is in the form of a plate and a part of the thickness is located outside the ceramic support layer. The method of claim 1,
Wherein the yellow loess-carbon particle composite molded body layer has a specific surface area of 60 to 200 m ² / g and a density of 5.1 to 7.4 g / cc as measured by the BET method. The method of claim 1,
The green loess-carbon particle composite formed body layer further comprises 1 to 10 parts by weight of an anionic mineral,
The anionic mineral may be selected from the group consisting of P ₂ O ₅ , Ce ₂ O ₃ , La ₂ O ₃ , Nd ₂ O ₃ , ThO ₂ , Pr ₂ O ₃ , SiO ₂ , Sm ₂ O ₃ , CaO, Fe ₂ O ₃ , TiO ₂ , _{ZrO 2, Y 2 O 3,} Gd 2 O 3, for air purification multi-layer tiles, characterized in that it comprises at least two selected from the group consisting of Dy ₂ O ₃ and SO _3. The method of claim 1,
Wherein the carbon particles comprise at least one of activated carbon, charcoal, carbon nanotube, graphite, and carbon black. The method of claim 1,
Further comprising an adhesive layer positioned between the loess-carbon particle composite formed body layer and the ceramic support layer. The method of claim 1,
Wherein the composite molded body layer is formed in an area of 20 to 90% of an area of the upper surface of the ceramic support layer. The method of claim 1,
Wherein the ceramic support layer comprises at least one selected from the group consisting of nanosilver, anion mineral, and photocatalyst material. The method of claim 1,
Wherein the thickness of the loess-carbon particle composite formed body layer is 2 to 30 mm.

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