JP2003129577A - Moisture absorptive-desorptive fire-preventive building material having negative-ion generating function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a moisture absorptive-desorptive fire-preventive building material having excellent moisture absorptivity and desorptivity and deodorizing function while having various functions such as the negative ionization and purification of air, the radiation of far infrared rays, a deodorizing, an antibacteria and the like. SOLUTION: In the moisture absorptive-desorptive fire-preventive building material having a negative-ion generating function, the granules and powder of a mineral generating negative ions are added to at least one of the base material of an inorganic moisture absorptive-desorptive fire-preventive building material, a sealer and a film.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a function of generating negative ions, which has a high moisture absorbing / releasing ability and diffuses negative ions into the living space, and has functions of cleaning, sterilizing, deodorizing, promoting health in the space. A moisture absorptive and fireproof building material having

[0002]

2. Description of the Related Art Recently, in order to bring comfort to a living space, a moisture-absorbing and fire-preventing building material which has a high moisture-absorbing and releasing ability and is excellent in fire resistance and fire resistance and can be used as a ceiling material, an interior material, etc. Is being promoted. The moisture absorbing / releasing fireproof building material is provided with a moisture absorbing / releasing function, a deodorizing function and the like by a porous material such as diatomaceous earth mixed in the base material.

[0003]

However, although the moisture absorptive and desorptive fireproof building material has the above-mentioned excellent moisture absorptive and desorptive ability and deodorizing function, it is more expensive than gypsum board, etc. The addition of functions was desired.

On the other hand, negatively ionized air is known to have various beneficial effects on the human body such as promotion of metabolism, promotion of blood circulation, recovery from fatigue, promotion of appetite, sleep and analgesia.

The present invention has a moisture absorbing / releasing fireproof building material which has excellent moisture absorbing / releasing ability and deodorizing function, and also has various functions such as negative ionization / purification of air, radiation of far infrared rays, deodorizing, and antibacterial in a living space. The purpose is to provide.

[0006]

The invention according to claim 1 for solving the above-mentioned problems generates negative ions in at least one of a base material, a sealer and a coating film of an inorganic moisture absorptive and desorptive fireproof building material. It is a moisture absorbing and releasing fireproof building material that has the function of generating negative ions by adding mineral powder.

According to the second aspect of the present invention, the base material of the inorganic moisture absorptive and desorptive fireproof building material is 5% to 60% by weight of the moisture absorptive and desorptive material.
%, And the minerals that generate negative ions are one or more selected from tourmaline stones, Fergson stones, Samalski stones, xenotime and the like, and the humidity-controlling property with the negative ion generating function according to claim 1. It is a fireproof building material.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to its preferred embodiments.

The moisture absorptive and desorptive fireproof building material of the present invention comprises 5% to 60% by weight of a moisture absorptive and desorptive material, such as hydraulic substances and tourmaline stones, Fergson stones, Samalsky stones, xenotime, trogamstones, and modified zircon. It is obtained by adding water to a raw material mixture to which a granular powder made of one or two or more kinds of minerals that generate negative ions is added, kneading to form a slurry, and making a slurry. As the paper-making method, a paper-making method using a knitting type paper making machine known per se can be used. Also,
When applying a sealer or a paint to the base material of a moisture absorptive and desorptive fire-retardant building material which contains a moisture absorptive and desorptive material and a hydraulic substance as essential components, tourmaline stone, Fergson stone, Samalsky stone It is also possible to add granular powder composed of one or two or more kinds of minerals that generate negative ions, such as, xenotime, trogamstone, and modified zircon.

The component system of the moisture absorptive and desorptive fireproof building material having the function of generating negative ions according to the present invention will be described below.
The moisture absorptive and desorptive fireproof building material having a negative ion generating function of the present invention is basically a moisture absorptive and desorptive material blended by 5% to 60% by weight, a hydraulic substance, and a mineral particle that generates negative ions. It consists of powder.

In the present invention, as the moisture absorbing / releasing material,
Diatomaceous earth, zeolite, xonotlite, sepiolite, apatargite, tobermorite, allophane, white sand (shirasu), kaolinite clay, aluminum oxide, charcoal and activated carbon can be used.

In the present invention, the moisture absorptive and desorptive material is blended within the range of 5% to 60% by weight in the blended raw material. 5
If the blending amount is less than%, it is not possible to impart desired moisture absorption / release properties to the humidity-controlling building material. On the other hand, if the blending amount exceeds 60%, the flexural strength and hardness are reduced, even if the primary physical properties of the humidity-controllable fireproof building material are considered.

When the moisture absorptive and desorptive fireproof building material of the present invention is manufactured using a gauze type paper making machine, the moisture absorptive and desorptive material preferably has a particle size of 100 μm or less. When the particle size exceeds 100 μm, when the blended raw material slurry is wound up by a papermaking machine, the moisture absorbing / releasing material such as diatomaceous earth cannot be separated to form a uniform mat. Usually, it is carried out with a particle size ≦ 70 μm. When the moisture absorptive and desorptive material is diatomaceous earth, the particle size is more preferably 10 μm to 50 μm.

By mixing the hydraulic substance with the matrix, the matrix firmly adheres to increase the strength of the moisture absorptive and fire-retardant building material, and at the same time, the characteristics such as curing and molding can be imparted easily and inexpensively. To facilitate the production of (board base material). Further, the hydraulic substance has a waterproof property as well as a fireproof property and a fireproof property. As the hydraulic material, slag, cement, gypsum, calcium carbonate, magnesium carbonate, calcium silicate or the like can be used.

In the present invention, the hydraulic material is blended in the range of 10% to 60% by weight. If the blending amount is less than 10%, it is difficult to exhibit strength imparting ability, waterproofness, curing characteristics, and molding characteristics. On the other hand, if the content exceeds 60%, the moisture absorptive and fire-preventing building material may increase in weight and may be cracked due to drying and shrinkage.

In the present invention, the filler material is added to the raw material formulation as a filler. As the filling material, gypsum dihydrate: 2% to 30%, calcium carbonate: 0% to 20%, pearlite: 0% to 15%, slaked lime: 0% = 1.5%, mica: 0% to 8% It can be used within the range.

Gypsum has the advantages of being fireproof and fireproof, having a small amount of expansion and contraction due to changes in humidity, and being easily hardened and molded, and has long been used as a fireproof material and fireproof material. However, gypsum alone has the drawbacks of low bending strength and weak screw nail holding power, even if the primary properties are different. In the present invention, this disadvantage is complemented by the combination of a hydraulic material and an organic reinforcing fiber.

Gypsum is added by 2% to 30% by weight.
Gypsum also has an effect of promoting hardening by hydration of hydraulic substances such as slag and cement, but it is difficult to exhibit the effect of addition when the amount added is less than 2%. On the other hand, when it is added in excess of 30%, properties such as strength imparting ability, waterproofness, and hardening characteristics due to hydraulic substances such as slag and cement are diminished. In addition, the primary physical properties of the moisture-absorbing / releasing fireproof building material decrease bending strength and screw nail holding power.

Perlite enhances the fire resistance of the product and
It is added as a lightweight aggregate for the purpose of reducing the weight of moisture-absorbing and desorbing fireproof building materials. If added in excess of 15%, the moisture absorption / release property of the fireproof building material is impaired in the balance between the moisture absorption / release properties and primary physical properties.

Calcium carbonate is used as a filler in the present invention, and is added within the range of 0% to 20%. 20
If the amount added exceeds%, the weight of the product is increased.

As the organic reinforcing fiber for improving the strength of the moisture absorbing / releasing fireproof building material, pulp is added for the purpose of improving the paper-making property. In the present invention, 3% to 5
Add within the range of%. If the addition amount is less than 3%, the effect of improving the strength and paper formability of the moisture absorptive and desorptive fireproof building material cannot be exhibited. On the other hand, when the addition amount exceeds 5%, the property of the moisture absorptive and desorptive fireproof building material as a noncombustible material is lost from the place where the pulp is an organic material. As the organic reinforcing fiber, vinylon or the like can be used in addition to pulp.

Inorganic fibers such as rock wool are added to improve the strength and processability of the moisture absorptive and fire-preventing building material in the same manner as the organic reinforcing fibers. Further, the inorganic fiber improves the waterproof property and suppresses the generation of cracks in the moisture absorptive and fire-retardant building material during fire resistance. In the present invention, it is added within the range of 1% to 8%. If the addition amount is less than 1%, there is little contribution to the improvement of strength. If the addition amount is more than 8%, the workability at the time of adding water to the blended raw material and kneading is impaired. In addition, fiber aggregates called lumps are mixed and impair the uniformity of the material of the humidity control fireproof building material.

In the present invention, either one or both of the organic reinforcing fiber and the inorganic fiber are added.

In the present invention, a mineral that generates negative ions, such as tourmaline stone, ferguson stone, samarsky stone, xenotime, trogamstone, and variant zircon, is added to the above-mentioned raw materials. Among these minerals, tourmaline stone is a cyclosilicate mineral containing boron and is also called tourmaline, and its chemical composition is (XY ₉
B ₃ Si ₆ O ₂₇ (O, OH, F) ₄ (X = C
a, Na, K, Mn Y = Mg, Fe, Al, C
r, Mn, Ti, Li).

In tourmaline stone, since the center of the positive charge and the center of the negative charge of the unit cell of the crystal are largely deviated from each other, electrodes are formed at both ends of the crystal and the potential is permanently retained.

Tourmaline stones generate far infrared rays and negative ions having a wavelength of about 4 μm to 14 μm, which are suitable for the human body, due to a slight temperature difference, pressure or impact. Negative ions have the effect of purifying air and water, the function of activating oxidative aging compounds in the human body to change the acidic constitution to a weakly alkaline constitution, purifying blood by activating water, body fluids,
It is known to have an action of activating cells and an action of purifying plants and the like.

The particle size of minerals that generate negative ions is
In the present invention, several μm to 100 μm, preferably 2
It is 0 μm to 60 μm. Within this particle size range, it is suitable for papermaking when obtaining a moisture absorptive and desorptive fireproof building material.

When added to the sealer coated on the surface of the moisture absorptive and desorptive fireproof building material, the blending ratio of the minerals generating negative ions is 5% by weight based on the sealer or the paint.
The range is 50%. If the blending amount is less than 5%, the amount of negative ions released from the sealer or the coating film is small, and the effect of heat and purification of air or water, deodorization, sterilization and the like cannot be obtained. On the other hand, if it is blended in an amount of more than 50%, the effect of heating and the purifying action of air and water, deodorizing effect, sterilizing effect and the like are exhibited, but the properties of the sealer are deteriorated.

When a moisture absorbing / releasing material, for example, diatomaceous earth is mixed with mineral particles that generate negative ions, 5 parts by weight to 50 parts by weight of mineral particles that generate negative ions are added to 100 parts by weight of diatomaceous earth. Compound. If the blending amount is less than 5 parts by weight, the amount of negative ions released from the moisture absorptive and fire-retardant building material is small, and the effects of heat and air or water, deodorizing, sterilizing, etc. cannot be obtained. on the other hand,
When it is blended in an amount of more than 50 parts by weight, the effect of heating and the effect of purifying air and water, the effect of deodorizing, sterilizing, etc. are exhibited, but the cost is remarkably higher than the effect.

[0030]

Example 1 By weight, gypsum dihydrate: 8.5%, blast furnace slag: 26%, cement: 5%, diatomaceous earth: 40% (average particle size: 30μ
m), tourmaline stone: 12% (30 parts by weight with respect to diatomaceous earth, average particle size: 25 μm), pulp: 5%, rock wool: 3%, and coloring pigment: 0.5%. The slurry obtained by kneading and kneading was machined at a papermaking speed of 40 m / min using a round-net papermaking machine, and then 70
The temperature was raised stepwise to around 70 ° C., and steam (90% RH) curing was carried out at a temperature of 70 ° C. for 20 hours. Then 180 in the dryer
After drying at 0 ° C. for 10 minutes, cutting processing was performed to obtain a moisture absorbing / releasing fireproof building material having a thickness of 6 mm, a width of 910 mm, and a length of 1820 mm.

Example 2 By weight, gypsum dihydrate: 6.5%, blast furnace slag: 17%, cement: 8%, diatomaceous earth: 54% (average particle size: 50μ)
m), Fergsonite: 6% (11 parts by weight with respect to diatomaceous earth, average particle size: 40 μm), pulp: 5%, rockwool: 3%, coloring pigment: 0.5% In addition, the slurry obtained by kneading was machined at a paper-making speed of 40 m / min using a round-net paper-making machine, and then 70
The temperature was raised stepwise to around 70 ° C., and steam (90% RH) curing was carried out at a temperature of 70 ° C. for 20 hours. Then 180 in the dryer
After drying at 0 ° C. for 10 minutes, cutting processing was performed to obtain a moisture absorbing / releasing fireproof building material having a thickness of 6 mm, a width of 910 mm, and a length of 1820 mm.

Example 3 Gypsum dihydrate: 13.5%, blast furnace slag: 33% by weight,
Cement: 5%, diatomaceous earth: 40% (average particle size: 30μ
m), pulp: 5%, rockwool: 3%, and color pigment: 0.5%. A slurry obtained by kneading the raw material mixture with water was used to knead. Papermaking speed: papermaking at 40 m / min, then stepwise heating to near 70 ° C, steam at 90 ° C for 20 hours (90% RH)
I was cured. After that, it was dried in a dryer at 180 ° C. for 10 minutes, and then cut to a thickness of 6 mm and a width of 9
A moisture absorbing / releasing fireproof building material substrate having a length of 10 mm and a length of 1820 mm was obtained.

As a breathable sealer on one side of this substrate
Of silica modified acrylic copolymer emulsion
40% solid content of marine stone powder to sealer
Apply a slurry of the added mixture: water = 1: 2 (weight ratio).
Clothed The coating amount is 66 g / m ^Two(Solid content).
Then, hot air drying was performed at 120 ° C. for 3 minutes.

Example 4 Gypsum dihydrate: 12.5%, blast furnace slag: 17% by weight,
Cement: 8%, diatomaceous earth: 54% (average particle size: 50μ
m), pulp: 5%, rockwool: 3%, and color pigment: 0.5%. A slurry obtained by kneading the raw material mixture with water was used to knead. Papermaking speed: papermaking at 40 m / min, then stepwise heating to near 70 ° C, steam at 90 ° C for 20 hours (90% RH)
I was cured. After that, it was dried in a dryer at 180 ° C. for 10 minutes, and then cut to a thickness of 6 mm and a width of 9
A moisture absorbing / releasing fireproof building material substrate having a length of 10 mm and a length of 1820 mm was obtained.

As a breathable sealer on one side of this substrate
Silica-modified acrylic copolymer emulsion: water =
A 1: 2 (weight ratio) mixture was applied. The coating amount is 66
g / m ^Two(Solid content). After that, 120 ℃ x 3 minutes
Hot air drying was performed for the period.

Then, on the surface coated with the breathable sealer,
By weight, coloring and extender pigment: 50%, acrylic resin emulsion: 18%, additive: 7%, water: 25% water-based paint: 100 parts by weight, Fergson stone granule powder:
67 parts by weight, 8 parts by weight of an emulsion containing 30% of aliphatic hydrocarbon was added, and the resulting mixture was applied.

On the other hand, as a back sealer on the other surface of the base material, an acrylic / styrene copolymer resin emulsion: 10
0 parts by weight and paraffin wax as an additive: 50
%, Water: 50% milk-white emulsion: 5 parts by weight of the mixture was applied at 87 g / m ² (solid content). afterwards,
Hot air drying was performed at 100 ° C. for 3 minutes.

[0038]

EFFECTS OF THE INVENTION According to the present invention, in addition to having a high ability to absorb and desorb moisture, it is excellent in fireproofness and fire resistance, and in addition, it has an air purifying effect, a deodorizing effect and a health promoting effect by negative ions.

Claims (2)

[Claims] 1. A moisture absorptive and desorptive fireproof building material having a function of generating negative ions, which is obtained by adding granular powder of a mineral that generates negative ions to at least one of a base material, a sealer and a coating film of an inorganic moisture absorptive and desorptive fire protection building material. . 2. The inorganic moisture absorbing / releasing fireproof building material base material contains 5% to 60% by weight of the moisture absorbing / releasing material, and the minerals that generate negative ions are tourmaline stone, ferguson stone, and Samalski. The moisture absorptive and desorptive fireproof building material according to claim 1, which is one kind or two or more kinds selected from stone, xenotime, and the like.