JPH073911A - Heat insulating wall panel - Google Patents

Abstract

PURPOSE:To provide a heat insulating wall panel of excellent fire resistance and avoid the spread of fire even if it is caught in a fire or the like by using plate material made of an inorganic substance having crystal water for the face material of the heat insulating wall panel, and using a framework material of an inorganic substance having crystal water for the frame body provided on the face material. CONSTITUTION:A face material 2 is provided on the outside of a panel P1 for 'shinkabe' (wall between pillars). At this time, the plate material made of an inorganic substance having crystal water such as a gypsum board for the face material 2. Further hard urethane foam 3 is hardened into a decided form as a heat insulating material. Next plate material made of an inorganic substance having crystal water is similarly used as the framework materials 1a, 1b of a frame body 1. Hereby, this panel has excellent fire resistance and erosion due to termite or the like can be also prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating wall panel which is arranged on a wall of a house or the like to improve the heat insulating property of the wall.

[0002]

2. Description of the Related Art For example, in the case of a wall of a house in which an interior material and an exterior material are attached to a frame, in order to improve heat insulation,
It is common practice to arrange various building materials for heat insulation in the space formed by the interior material and the exterior material. As such a building material for heat insulation, a heat insulating wall panel 21 in which a frame 22 is filled with a heat insulating material 23 made of foamed resin such as polyurethane has been conventionally known (FIG. 3).
(See (a) and (b)).

Further, in the heat insulating wall panel 21, for the purpose of further improving the heat insulating property of the heat insulating material 23, a plate-like face material 24 covering the heat insulating material 23 is fixed to one side of the frame body 22. . That is, the heat insulating material 23 is a closed cell,
Although it has a so-called foam-like structure and has some breathability, the breathability is lost when the face material 24 covers the heat insulating material 23. For this reason, the insulating property of the heat insulating wall panel 21 is enhanced, and invasion of outdoor hot air is prevented in the summer, and warm air in the room is prevented from flowing out in the winter so that the heat insulating property is improved.

[0004]

However, in the heat insulating wall panel 21 described above, the frame 22 and the face material 24 are usually used.
Wood is often used for the reason that it is easy to process, and it has a drawback that it is basically flammable and inferior in fire resistance.

Further, since the above-described heat insulating material 23 is made of foamed resin such as urethane resin and is flammable, the heat insulating material 23 is spread by the ignition of the wooden frame 22 and the face material 24 when a fire or the like is encountered. Then, there is a problem that a large amount of toxic gas is generated.

Furthermore, it is difficult to prevent erosion by termites and the like with the frame 22 and the face material 24 made of wood, and the service life of the heat insulating wall panel 21 is shortened.
The present invention has been made in view of the above circumstances, and an object thereof is excellent in fire resistance, which can prevent the spread of heat insulating material even when a fire or the like is encountered and prevent erosion by termites or the like. It is to provide a heat insulation wall panel that can be.

[0007]

In order to solve the above problems, in the invention according to claim 1, in a heat insulating wall panel in which a heat insulating material is arranged on the surface material, the surface material is made of crystal water. Its gist is to use a plate made of inorganic material.

According to the second aspect of the invention, in a heat insulating wall panel in which a heat insulating material is arranged in a frame body provided on a face material, the frame body is made of an inorganic material having crystal water. The summary is that it is configured by.

[0009]

In the heat insulating wall panel according to the first aspect of the present invention, since the face material is a plate material made of an inorganic substance having crystal water, it has excellent flame retardancy, that is, fire resistance. Therefore, even if a fire or the like is encountered, the fire does not easily ignite and the spread of the heat insulating material is avoided. At the same time, erosion by termites etc. is prevented. Further, in the heat insulating wall panel according to claim 2, even when the frame body is made of a frame material made of an inorganic substance having crystal water, the heat is not easily ignited and the spread of the heat insulating material is avoided as described above. At the same time, erosion by termites etc. is prevented.

In the present invention, as the inorganic substance having water of crystallization constituting the face material or frame, calcium sulfate, magnesium sulfate, iron sulfate, zinc sulfate, basic magnesium carbonate, magnesium phosphate, boehmite, gibbsite, bauxite, Kaolinite, pyrophyllite, dalk, montmorillonite, attapulgite, vermiculite, nontronite, hectorite, saponite,
Kleino tylolite, mordenite, analcim, chabazite, natrolite, etc. Among the calcium sulfate, there are soft gypsum (II type anhydrous gypsum), hard gypsum (α type hemihydrate gypsum), calcined gypsum (β type hemihydrate gypsum), gypsum (dihydrate gypsum) and the like. Among the gypsums listed here, it is particularly desirable to select gypsum dihydrate having a large amount of crystal water. The reason for this is that when a fire or the like is encountered, the crystal water undergoes thermal decomposition, preventing the material temperature from rising until the release of the crystal water is completed, thus improving the fire resistance.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a heat insulating wall panel for a wooden house will be described in detail with reference to the drawings.

FIG. 1 shows a heat insulating wall panel (a panel for a true wall) P1 used in this embodiment. Figure 1
The true wall panel P1 shown in FIGS. 1 (a) to 1 (c) is basically a frame body 1 composed of two pairs of frame members 1a and 1b, a face material 2, a rigid polyurethane foam 3 as a heat insulating material, and a stud. It is composed of 4 etc.

The face material 2 constitutes the outer side surface of the true wall panel P1.
The outside is one size larger than the frame 1.
It has a shape. In this embodiment, stone is used as the face material 2.
Plasterboard is used. This gypsum board is gypsum dihydrate
(Chemical formula: CaSO_Four・ 2H ₂O) about 180 ℃ ~ 19
Hemihydrate gypsum (chemical formula: CaSO_Four・ 1/2
H₂Add the admixture to the one described in O), mix with water and mix again.
Slurry dihydrate gypsum was used as the base paper for board (thickness
It was poured into the space between about 0.6 mm) and cured.
It And this gypsum board contains about 21% crystal water.
Has been. In addition, this gypsum board has hemihydrate gypsum and dihydrate gypsum
When it becomes a needle-shaped crystal that easily decomposes due to thermal decomposition.
And a hardened body with a dense structure in which crystals are connected to each other and entangled
Has become. Therefore, the face material 2 has no air permeability and does not transmit heat.
It has a relatively low conductivity and is itself adiabatic. Change
In addition, this gypsum board is difficult to burn due to the ingredients,
It has flame retardancy, that is, fire resistance.

As shown in FIG. 2, the frame body 1 is fixed to one surface of the face material 2, that is, the surface which becomes the indoor side when it is installed on the wall W. The frame body 1 gives a certain strength to the true-wall panel P1 by combination with the face material 2, and also serves as a framework for hardening the rigid urethane foam 3 into a predetermined shape. In this embodiment, such a frame 1
The frame members 1a and 1b constituting the above are made of the same gypsum board as the face member 2.

When fixing each of the frame members 1a and 1b to the face member 2, a region where the heat insulating material is not formed in the peripheral portion of the face member 2 (hereinafter simply referred to as "non-formed region R1").
Remain (see FIGS. 1 (a) to 1 (c)). This non-formation area R1 is
When a gap is created between the heat insulating material, the pillar, and the beam, the non-formation region R1 that is the peripheral portion of the face material closes the gap from the outside, maintains the airtightness, and prevents fire from the outside. Plays an important role in shutting off.

In the frame body 1 forming the true wall panel P1, a reinforcing material for improving the rigidity of the frame body 1 is provided.
Book studs 4 are arranged parallel to the vertical frame member 1a. A sealing material 5 made of a soft resin is provided on the outer surface of the frame body 1.

The hard polyurethane foam 3 as a heat insulating material plays a main part in the true wall panel P1 exerting a heat insulating effect. In order to obtain such a rigid urethane foam 3, a procedure of injecting a starting material and a foaming agent into a space S1 formed by the frame 1 and the face material 2 and then applying heat to foam the foam is generally adopted. . And
The kraft paper 6 is attached to the surface of the hard urethane foam 3 thus obtained, that is, the surface to be the indoor side during construction.

Next, the heat insulating wall panel P1 of this embodiment is attached to the wall W.
I will describe how to install. FIG. 2 shows a frame assembly (a joist 10, a base 1) which is a portion where the true wall panel P1 is to be installed.
1, girder 12 and tube column 13) are illustrated. An interior material 16 and an exterior material 17 are attached to the frame,
Thereby, the wall W in the wooden house is constructed.
In addition, a ceiling material 14 and a floor material 15 are provided on the indoor side of the wooden house.
Is provided. Then, in this wall W, a region surrounded by the interior material 16, the exterior material 17, and the frameworks such as the joist 10 and the base 11 is a true wall panel P1.
It is an installation space S2 for mounting.

In this embodiment, the frame 1 of the true wall panel P1
Is formed so as to be slightly smaller than the outer shape of the accommodation space S2 for the convenience of installation. For this reason,
When the true-wall panel P1 is placed in the installation space S2, the shafts such as the joists 10 and the base 11 and the peripheral portion of the face material 2 (that is, the non-formation region R1) are in contact with each other. The true wall panel P1 installed as described above is attached by hitting a nail (for example, SN400) 18 or the like.

According to the structure of this embodiment, the face material 2 and the frame members 1a and 1b of the frame body 1 are gypsum boards. Therefore, it is less likely to burn and is excellent in flame resistance, that is, fire resistance, as compared with the conventional wooden one. Therefore, even if a fire or the like is encountered, the fire does not easily ignite, and the spread of the heat insulating material can be avoided.

Further, since most of the components of the gypsum board are composed of calcium sulfate, insects such as termites will not preferentially erode and will not only be excellent in insect repellent property,
Erosion damage due to rats is also eliminated. As a result, the heat insulating wall panel 21 has a long useful life and can be suitably used for a house.

The gypsum board of this embodiment is composed of gypsum dihydrate and contains about 21% of water of crystallization. Therefore, when a fire or the like is encountered, the crystal water undergoes thermal decomposition, and the temperature rise of the face material 2 and the frame members 1a and 1b is prevented until the release of the crystal water is completed. As a result, the fire resistance of the face material 2 and the frame members 1a and 1b can be improved.

Further, since the gypsum board of this embodiment is made of slurry dihydrate gypsum and poured into the base paper for the board and hardened, it does not crack even when nailed or tapped. It does not happen. Therefore, the non-formation region R1 is secured in the peripheral portion of the face material 2 to secure the nail 18
It is possible to attach the heat insulating wall panel P1 to the wall W by hitting, and the workability is good and the fixing strength is improved. Also, finishing such as cutting, adhesion, paint painting, wallpaper, and cloth application can be easily performed.

Further, since the gypsum board does not shrink when it is solidified, it does not expand or contract under the influence of temperature and humidity.
No dimensional change due to cracking or expansion / contraction of gypsum board.

Further, the gypsum board has no air permeability and has a large surface density so that it has a sound insulating property. Therefore, the present invention can be effectively applied to particularly densely packed houses, and it can be applied to the recent lifestyle such as having audio and visual equipment.

The present invention is not limited to the above embodiment, but can be modified, for example, as follows. (1) In the above embodiment, the face material 2 and the frame members 1a and 1b are gypsum boards, but only one of them may be a gypsum board. Further, by using a composite of gypsum board and gibbsite or an inorganic substance having water of crystallization such as magnesium phosphate, it is possible to improve the fireproof performance by adjusting the dehydration temperature to the ignition temperature and the ignition temperature of the heat insulating material. it can. The gypsum board may be any of soft gypsum (II type anhydrous gypsum) other than dihydrate gypsum, hard gypsum (α type hemihydrate gypsum), and calcined gypsum (β type hemihydrate gypsum). Further, an inorganic fiber material may be mixed with the above-mentioned gypsum to obtain a reinforced gypsum board having more excellent fire resistance.

(2) The composition of the base paper for board constituting a part of the gypsum board is not limited, and nonflammable aluminum hydroxide paper or the like may be used. (3) Aluminum foil may be attached to one surface and the end surface of the gypsum board to soften the radiant heat from the wall W or to enhance the sound insulation. Also, instead of the aluminum foil, a moisture-proof paper may be attached to prevent the gypsum board from absorbing moisture. By providing moisture-proof paper in this way,
It is possible to avoid the occurrence of mold and condensation on the gypsum board as much as possible.

(4) The foamed resin for forming the heat insulating material may be, for example, polyethylene resin, phenol resin, polystyrene resin, urea resin or the like in addition to the polyurethane resin used in the examples.

(5) For example, instead of the procedure of the above-described embodiment in which the heat insulating material is injected and foamed with the frame 1 fixed to the face material 2, for example, a solidified heat insulating material is fixed to the face material 2 in advance. It is also possible to adopt a procedure of disposing the frame body 1 later.

(6) For example, it is of course possible to omit the studs 4 from the frame 1 of the heat insulating wall panel P1.
Further, it is possible to further simplify the configuration of the frame body 1 itself including the two pairs of frame members 1a and 1b. Further, in the case of the other example (5), it is possible to form the main part of the heat insulating wall panel P1 by the face material 2 and the heat insulating material by omitting the frame body 1 as well. .

(7) The non-formed area R1 for mounting the heat insulating wall panel P1 does not necessarily have to be provided on the entire peripheral portion, and may be provided, for example, only on the left and right sides of the frame 1 or only on the upper and lower sides.

[0032]

As described in detail above, according to the structure of the heat insulating wall panel of the present invention, the heat insulating material has excellent fire resistance and can prevent the spread of the heat insulating material even when a fire or the like is encountered. It has an excellent effect of preventing erosion due to.

[Brief description of drawings]

FIG. 1 (a) is a front view showing a true wall panel of an embodiment,
(B) is a sectional view taken along the line A-A, and (c) is its B.
It is a sectional view taken along the line B.

FIG. 2 is a partially cutaway schematic sectional view for explaining a method of installing a true wall panel.

FIG. 3 (a) is a front view showing a conventional heat insulating wall panel,
(B) is sectional drawing in the FF line.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Frame body, 2 ... Face material, 3 ... Rigid polyurethane foam as a heat insulating material, P1 ... Panel for a true wall as a heat insulating wall panel.

Claims (2)

[Claims] 1. A heat insulating wall panel (P1) comprising a heat insulating material (3) arranged on a face material (2), wherein the face material (2) is a plate material made of an inorganic substance having crystal water. Characteristic heat insulation wall panel. 2. A heat insulating wall panel (P1) comprising a heat insulating material (3) arranged in a frame body (1) provided on a face material (2), wherein the frame body (1) is made of crystal water. An adiabatic wall panel characterized by being made of a frame material made of an inorganic substance.