JP2000320026A - Gas adsorption panel for construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display gas adsorption performance by sandwiching the powder body of a porous adsorption material by a sheet material having ventilation, and forming the adsorption layer of the powder body between the sheet bodies by adhering it to an adhesive applied on the opposite face of the sheet material. SOLUTION: A sheet material 2 comprising the non-woven fabric or the like of a glass fiber having ventilation capable of passing a volatile poisonous gas and non-combustibility is molded. An adhesive 3 is applied on one face of each sheet material 2, and a powder body 5 is to be uniformly distributed on one adhesive application face of the sheet material before the adhesive is cured. Next, the adhesive application face of the other sheet material 2 is overlapped on the adhesive application face of the sheet material 2 on which the powder body 5 is adhered, which being compressed in a degree that both the adhesives do not mutually adhere, the adsorption layer 4 of the powder body 5 is formed. Thus, performance adsorbing poisonous gas generated in a building can be displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used as an interior finishing material for building ceilings and walls, etc.
The present invention relates to a building gas adsorption panel having a performance of adsorbing toxic gas generated in a building.

[0002]

2. Description of the Related Art In a highly airtight building, formaldehyde, toluene and xylene generated from a base material such as a ceiling or a wall or an adhesive used for bonding a finishing material are used. It is filled with other volatile toxic gases and has a great effect on the human body. To cope with this problem, Japanese Patent Application Laid-Open No. 10-2044 proposes a building material using pulverized siliceous shale capable of adsorbing toxic gas as a raw material in order to reduce the concentration of toxic gas.

[0003] This building material is a ceramic which is formed by mixing water or water and an organic binder with a crushed material of siliceous shale and calcining it. Since the surface of the particles of the siliceous shale is covered and the gas adsorption performance and the humidity control performance of the particles themselves are hindered, the original performance may not be exhibited.

[0004] The present invention proposes a gas adsorbing panel for building which exhibits the original gas adsorbing performance and humidity control performance of particles such as siliceous shale.

[0005]

According to the present invention, a powdery substance of a siliceous shale or other porous adsorbent is sandwiched between air-permeable sheet materials and adhered to an adhesive applied to opposing surfaces of the sheet material. By forming a powdery adsorbing layer between the sheet materials, the surface area of the powdery body in contact with the outside air is secured, and the original performance of the powdery body is exhibited. The powder forms a gas adsorption panel together with the sheet material.

The gas adsorbing panel according to the first aspect is composed of two sheets and one adsorbing layer, and the gas adsorbing panel according to the second aspect is composed of three or more sheets and two or more adsorbing layers. You. Since the gas adsorption panel is used as an interior finishing material for a building, the sheet material has both air permeability and nonflammability.

[0007] By interposing the powdery material between the two sheets, a gap is formed between the opposing surfaces of the sheets so that the gas can freely move, and at the same time, the volatile toxic gas present in the gap is adsorbed. Forming an adsorbing layer.

The adhesive applied to the opposing surface of the sheet material adheres to the powder material so as to surround the contact portion of the powder material with the sheet material, or the adhesive portion applied to the powder material in contact with the sheet material. While adhering to the sheet, the powder penetrates between the powders, and the adjacent powders are adhered to each other and hardened, so that the air permeability in the portion of the sheet material itself where the powders do not contact is maintained.

Further, the surface of the portion of the powder material to which the adhesive does not adhere is not covered with the adhesive and is kept in contact with the gas passing between the sheet materials, so that the powder material comes into contact with the outside air. The surface area is secured, and the original gas adsorption performance and humidity control performance of the powder are exhibited.

[0010] By maintaining air permeability in the portion of the sheet material that does not come into contact with the powdery material, gas passing through the sheet material is free from the adhesion of the adhesive to the sheet material and the adhesion of the adhesive to the powdery material. Except for the portion, the sheet can pass between the facing sheet materials. As a result, even when three or more sheet materials are stacked, gas can reach from the front surface to the back surface of the gas adsorption panel in a state where it is used as an interior finishing material, regardless of the number of layers.

[0011] Further, since the surface of the portion other than the portion of the powdery material that is bonded to the adhesive is not covered with the adhesive, the volatile toxic gas present in the room passes through the sheet material and reaches the adsorption layer. Then, the powder is adsorbed to the powder at a portion of the powder that comes into contact with the outside air.

Since the volatile toxic gas passes through the sheet material and is adsorbed on the powdery material of the adsorbing layer, the adsorbing capability of the gas adsorbing panel is improved as the number of adsorbing layers is increased. In Japanese Patent Application Laid-Open No. 10-95061, a deodorant is attached to one side of a sheet material, but since the sheet material has no air permeability, it must be used in a state where the deodorant is exposed on the surface of the sheet material. However, the objects that can be used as finishing materials are limited. In addition, since the sheet material cannot be laminated in a plurality of layers because the deodorant must be exposed, the effect of improving the deodorizing ability by the lamination cannot be obtained.

[0013] Among the interior finishing materials, the wall material does not cause a problem of bending due to its own weight and does not require bending rigidity. Therefore, the wall material is a thin gas adsorbing panel according to claim 1 and a three-layer sheet according to claim 2. Any of the gas adsorption panels made of the above sheet materials can be used. Since the ceiling material and the floor material are likely to bend, the rigid gas-absorbing panel of claim 2 is used for these materials.

Since the powdery material exhibits its original ability to adsorb toxic gas, for example, a synthetic resin-based adhesive is used as an adhesive, and even if toxic gas is generated from the adhesive, the toxic gas is not removed from the building. Although it is unlikely that the adhesive is released into the inside, the use of a material made of an inorganic material for the adhesive as described in claim 3 avoids the problem of the adhesive itself generating toxic gas.

[0015] In addition to the use of an inorganic material as the sheet material and the porous adsorbent in addition to the adhesive as described in claim 4, generation of harmful substances after disposal is avoided. In this way, environmental hindrance is prevented.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A gas adsorbing panel 1 according to the present invention has a plurality of sheet materials 2 having an adhesive 3 applied to opposing surfaces.
2 and a powdery body 5 of a porous adsorbent that adheres to the opposing adhesive-applied surfaces of the adjacent sheet materials 2 and 2 to form the adsorbent layer 4
Consists of FIG. 1 shows a gas adsorbing panel 1 of claim 1 comprising two sheet materials 2, and FIGS. 2 and 3 show a gas adsorbing panel 1 of claim 2 comprising three or more sheet materials 2.

The sheet material 2 needs to have air permeability to allow volatile toxic gas to pass therethrough and non-combustibility required for use as an interior material of a building. Materials are used. Especially ensure high ventilation,
A nonwoven fabric is preferable to a woven fabric for surface printing as a finishing material, and a glass fiber nonwoven fabric is preferable in consideration of avoiding generation of harmful substances after disposal.

The powdery material 5 is obtained by pulverizing a natural porous adsorbent such as siliceous shale to have a uniform particle size. In order to increase the total surface area of the powder 5, it is necessary to increase the amount of the powder 5 attached to the adhesive applied surface of the sheet material 2.
A particle size of about μm or less is preferred.

With such a particle size, the powder material 5 can be evenly dispersed when the powder material 5 is applied to the opposing adhesive-applied surface by applying pressure to the sheet materials 2 and 2 as described later. The adhesive 3 having fluidity before curing when the sheet materials 2 and 2 to which the adhesive 3 is applied is overlapped.
Can be made to permeate between the powders 5 and 5 and adhere to the powder 5.

Although the kind of the adhesive 3 is not limited, a natural adhesive is better than a synthetic resin adhesive or an elastomer adhesive in order to effectively exhibit the toxic gas adsorption performance of the gas adsorption panel 1 itself. In particular, use of an adhesive containing a clay mineral as a main raw material is appropriate.

In the gas adsorption panel 1 shown in FIG. 1, an adhesive 3 is applied to one surface of each sheet material 2 and one of the opposing sheet materials 2 is applied before the adhesive 3 is cured. After the powder 5 is evenly dispersed and adhered to the surface, the adhesive-applied surface of the other sheet material 2 is superimposed on the adhesive-applied surface of the sheet material 2 to which the powder 5 is adhered. 3 and 3 are compressed in the thickness direction at such a pressure that they do not adhere to each other.
Is attached to both adhesives 3,3.

In FIGS. 2 and 3, an adhesive is applied to one side of the sheet material 2 located on both surface sides of the gas adsorbing panel 1 and to both sides of the sheet material 2 located at the intermediate portion. 1 and the powder material 5 is adhered to one of the opposing adhesive-applied surfaces of the sheet materials 2 and 2 as in the case of FIG. 1, and then the adhesive-applied surface of the other sheet material 2 is applied. Is superimposed on the adhesive-applied surface of the sheet material 2 to which the powder 5 has adhered, and compressed by such a pressure that the adhesives 3 and 3 do not adhere to each other, and the powder 5 adheres to the adhesives 3 and 3 It is manufactured by repeating this process or by simultaneously compressing all the sheet materials 2 after overlapping them. FIG.
FIG. 3 shows the case of forming three layers.

The adhesive 3 is applied to the entire surface of the sheet material 2 on which the adhesive is to be applied, but is superposed on the sheet material 2 facing in a fluidized state, so that the sheet of powder 5 is The powder 5 adheres to the powder material 5 so as to surround the contact portion with the material 2 and hardens, or penetrates between the powder 5 and 5 while adhering to the contact portion of the powder 5 with the sheet material 2. Then, the adjacent powdery bodies 5, 5 are adhered to each other and cured.

In the state where the adhesive 3 is cured, the air permeability of the sheet material 2 in a portion where the powder 5 does not contact between the adjacent powders 5 is ensured, and the adhesive 3
The surface of the portion where no is adhered is kept in contact with the gas passing between the sheet materials 2 and 2.

FIG. 4 shows a molded product obtained by pulverizing siliceous shale used as the powder 5 of the gas adsorbing panel 1 of the present invention, kneading it with a clay material and firing it, and the same surface area as the molded product. The relationship between the passage of time and the formaldehyde concentration when the gas adsorption panel 1 according to claim 1 or claim 2 having the above is placed in a formaldehyde atmosphere is shown.

In both the molded article and the gas adsorbing panel 1, the adsorbed amount of formaldehyde converges to a constant value after a lapse of a predetermined time. However, the gas adsorbing panel 1 of the present invention has a higher adsorbing capacity than the molded article from an earlier stage. It can be seen that the amount that can be finally adsorbed is large.

FIG. 5 shows the molded article and the gas adsorption panel 1.
The relationship between the indoor relative humidity and the amount of water vapor adsorbed (% by weight) is shown. All of them have a humidity control function, so that the higher the humidity, the higher the water vapor adsorbing ability is exhibited, but also here, the gas adsorbing panel 1 of the present invention has a higher adsorbing capacity than the molded product regardless of the humidity. You can see that.

[0028]

According to the present invention, a porous adsorbent powder is adhered to an adhesive applied to opposing surfaces of a sheet material having air permeability and noncombustibility to form an adsorbing layer between the sheet materials. The surface area of the body in contact with the outside air can be secured, and the original performance of the powder can be exhibited.

In particular, the adhesive permeates between the powders while adhering around the contact portion of the powder with the sheet material or while adhering to the contact portion of the powder with the sheet material, and adhering to the adjacent powder. Since the powders are adhered to each other and cured, air permeability is maintained in a portion of the sheet material where the powder does not come into contact, and at the same time, the surface of the powder material where the adhesive does not adhere is formed between the sheet materials. It is kept in contact with the passing gas.

As a result, the volatile toxic gas passes between the opposed sheet materials except for the portion where the adhesive adheres to the sheet material and the portion where the adhesive adheres to the powder material, reaches the adsorption layer, and Since the powder is adsorbed to the powder at a portion of the gas that comes into contact with the outside air, the adsorbing capability of the gas adsorbing panel can be improved in proportion to the number of adsorbing layers.

The gas adsorbing panel according to the first aspect of the present invention has a single adsorbing layer and has low rigidity, so that it can be easily handled in the same manner as wallpaper, and since it is thin, it can also be laminated on an existing finishing material. .

Since the gas adsorbing panel of the second aspect has a plurality of adsorbing layers, it has a high ability to adsorb volatile toxic gas, and has a bending rigidity due to the laminated sheet material, so that it is bent by its own weight. Can be used on ceilings and floors where problems arise.

In the third aspect, since a material made of an inorganic material is used for the adhesive, the problem that the adhesive itself generates toxic gas is avoided. In the fourth aspect, in addition to the adhesive, the sheet material and the porous adsorbent also use materials made of inorganic materials, so that generation of harmful substances after being disposed of is avoided, and environmental inhibition is prevented. .

[Brief description of the drawings]

FIG. 1 is a sectional view conceptually showing a gas adsorption panel of claim 1;

FIG. 2 is a sectional view conceptually showing the gas adsorption panel of claim 2;

FIG. 3 is a sectional view conceptually showing another gas adsorption panel according to claim 2;

FIG. 4 is a graph showing the relationship between the elapse of time and the formaldehyde concentration in the air of a gas-adsorbed panel of the present invention, and a molded article obtained by kneading and firing a powdery material and a clay material.

FIG. 5 is a graph showing the relationship between the relative humidity and the amount of adsorbed water vapor of a gas-adsorbed panel of the present invention, a molded article obtained by kneading a powdery material and a clay material and kneading the mixture.

[Explanation of symbols]

1 ... gas adsorption panel, 2 ... sheet material, 3 ... adhesive, 4 ... adsorption layer, 5 ... powder.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) E04F 13/14 103 E04F 13/14 103A F term (Reference) 2E001 DH21 FA03 FA06 FA14 GA03 GA12 GA28 GA42 GA85 HA33 HD11 HF18 JA22 2E110 AA64 AB03 AB04 AB23 BA03 BA05 DA12 DC21 GA23Y GA24Y GA43Y GB17Y GB18Y GB32W GB32X GB42Z 2E162 CA00 CA21 CA32 EA04 EA18 4D012 BA01 BA10 4F100 AA01A AA01C AA01G AA20 EB0BA00A00 BA03A00 BA00BAC JD14C JJ07A JJ07B

Claims (4)

[Claims] 1. A two-sheet material having air permeability and non-combustibility and having an adhesive applied on one side, and a porous material having an adsorbing layer formed by adhering to opposing adhesive applied surfaces of both sheets. Architectural gas adsorption panel made of powder of adsorbent. 2. An air-permeable and non-combustible three or more sheet material having an adhesive applied to opposing surfaces and an adsorbing layer attached to an opposing adhesive applied surface of an adjacent sheet material. Gas adsorbing panel for construction, which is composed of a powdery porous adsorbent that forms a sheet. 3. The gas adsorbing panel for building according to claim 1, wherein the adhesive is made of an inorganic material. 4. The gas adsorbing panel for building according to claim 3, wherein the sheet material and the porous adsorbent are made of an inorganic material.