JPH06117029A - Sound insulating panel - Google Patents

Abstract

PURPOSE:To provide a sound insulating panel excellent in sound penetration loss and capable of ensuring characteristics as a partition of a building by using a light-weight bubbled concrete panel and a vinyl chloride resin sheet to provide the sound insulating panel. CONSTITUTION:Vinyl chloride resin sheets 2, 5 are stuck through adhesives to at least one sides of light-weight bubbled concrete panels 3, 6. Next, two light-weight bubbled concrete panels 3, 6 are laminated with vinyl chloride adhesive surfaces opposed to each other through intermediate layers such as an air layer, inorganic fiber layer, etc. Then, the loss tangent of the vinyl chloride resin sheets 2, 5 is set to 0.5 or more under the room temperature. Also, the ratio of the thickness of vinyl chloride resin sheets 2, 5 to that of the light- weight bubbled concrete panels 3, 6 is set to 0.04-0.1. Further, the bulk specific gravity of the light-weight bubble concrete panels 3, 6 is set to 0.45-0.55 and the thickness of the intermediate layer to 20mm or more.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a sound insulation panel which is made of lightweight cellular concrete (ALC) as a base material.

[0002]

2. Description of the Related Art It has been conventionally known that an ALC panel has a sound insulation performance to some extent. However, as in recent years, in buildings that require more comfortable living, the sound insulation performance of the ALC panel is not sufficient, and efforts are being made to further improve the sound insulation performance. For example, a sound-insulating panel is known in which two lightweight concrete panels each having a slate bonded to one surface by an adhesive are laminated with an inorganic fiber layer so that the one surfaces face outward and face each other (special feature: (Kaisho 63-27639).

[0003]

However, the conventional sound-insulating panel has the following problems. (1) The bulk specific gravity of the lightweight concrete is 1.0 to 1.
Since it is relatively large as 5, it is not necessarily an excellent panel as a modern building material that requires a great deal of labor at the time of installation when it is used as a partition panel and it is desired to improve the construction efficiency even a little.

(2) Since the rigid plate-like body having a large bending elastic coefficient such as slate is fixed to the outside of the lightweight concrete with an adhesive or the like, the opening portion and the wiring portion of the electric wire are installed in the sound insulation panel at the time of installation. When it is attempted to form, the cutting of the rigid plate-like body is more difficult than the cutting of the light weight concrete, and in the end, the former becomes the rate-controlling and the construction efficiency is reduced. An object of the present invention is to provide a sound insulation panel which can further reduce these problems and can clear D45 specified in JIS A1419 "Sound insulation grade of buildings".

[0005]

In order to solve the above-mentioned problems, the present invention provides an ALC panel in which a vinyl chloride resin sheet is attached to at least one surface with an adhesive.
Via an intermediate layer such as a sheet, an air layer and / or an inorganic fiber layer,
The means for laminating so that the one side faces the other side is adopted.

[0006]

The function of the sound insulation panel according to the present invention is as follows. First, the sound-insulating panel is installed in a building as a partition to form a plurality of rooms. The noise generated in one room first collides with one ALC panel. Some of the collision sound is reflected, but the remaining sound tries to be transmitted while vibrating the ALC panel. However,
The sound is converted into the kinetic energy of the polyvinyl chloride molecules of the vinyl chloride resin sheet attached to the entire surface inside the ALC panel via the adhesive (vibration damping function).
At the same time, the vinyl chloride resin sheet itself suppresses the vibration that is about to occur in the ALC panel. Therefore, the vibration level is lowered and the emitted solid-borne sound is reduced.

Although the details of the vibration damping effect of the vinyl chloride resin sheet are unknown, it is considered that the relatively large radius of the chlorine atom suspended in the polyvinyl chloride molecule is involved. This is inferred from the phenomenon that when a benzene ring such as a phthalate ester is present between the molecules of the vinyl chloride resin, the vibration action is enhanced similarly.

Next, the sound radiated from the vinyl chloride resin sheet passes through the air layer and collides with another vinyl chloride resin sheet facing the vinyl chloride resin sheet, and a part thereof is reflected. . Similarly, the reflected sound collides with the former vinyl chloride resin sheet again, so that the sound is eventually attenuated in the air layer. When the fiber layer is used instead of the air layer, the sound is attenuated by further impinging on the fiber in the reflection process.

The attenuated sound collides with the ALC panel to which the vinyl chloride resin sheet is attached by the adhesive, and the same action as described above is exerted in this portion. In this case, the vinyl chloride resin sheet may be placed on the outside of the ALC panel, but from the viewpoint of improving the appearance as a partition wall and the viewpoint of suppressing the generation of chlorine-based gas when a building should encounter a fire. To vinyl chloride resin sheet for both ALC
Placed inside the board.

[0010]

Embodiment 1 Next, one embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the sound insulation panel 1 in this embodiment has a first ALC panel 3, an air layer 4, and a first ALC panel 3 each having a first vinyl chloride resin sheet 2 attached to one surface thereof with an adhesive (not shown). Similar to one ALC panel, the second vinyl chloride resin sheet 5 is attached to one surface with an adhesive (not shown), and the second ALC panel 6 is composed of a total of five layers. The first vinyl chloride resin sheet 2 and the second vinyl chloride resin sheet 5 are in a positional relationship of facing each other through the air layer 4.

The first and second vinyl chloride resins are composed of homopolymers, copolymers or mixed polymers of vinyl chloride. In the case of copolymers or mixed polymers, the components to be copolymerized or the partners to be mixed. 50% by weight of the total vinyl chloride resin
Below. As the copolymerization component, known components such as ethylene, propylene, vinyl acetate, vinylidene chloride and butadiene are used. The copolymer may be not only a linear polymer but also a graft polymer. A vibration energy absorbing compound such as a linear or branched alkyl ester of phthalic acid or a cycloalkyl ester may be added to the vinyl chloride resin. The addition amount is in the range of 5 to 100 parts by weight with respect to 100 parts by weight of the vinyl chloride resin.

The vinyl chloride resin sheet used in this example is manufactured by melting or wet extruding the resin by a known method. In this case the thickness is 2 mm
Adjusted to. The loss tangent of this sheet is the excitation frequency of 10
When measured under Hz and at room temperature, it is 0.5 or more as shown in FIG. As the first and second ALC panels 3 and 6, those having reinforcing bars by a known method using a known material (length: 3000 mm × width: 600 mm × thickness: 50 m)
2) are produced. As an adhesive for attaching the first and second vinyl chloride resin sheets 2 and 5 and the first and second ALC panels 3 and 6, a two-pack type epoxy adhesive is prepared.

When the first and second ALC panels 3 and 6 are bonded to the first and second vinyl chloride resin sheets 2 and 5 respectively, first, the two-pack type epoxy adhesive is applied to the panels 3 and 6. Mix and sensitize and apply this adhesive to the panel. Immediately after applying the adhesive, the sheets 2 and 5 are attached to one surface of the ALC panels 3 and 6 so that air is not entrapped in the adhesive. In this state, the adhesive is left in the room until the hardness of the adhesive becomes larger than that of the vinyl chloride resin sheets 2 and 5.

The first and second ALC panels 3, to which the vinyl chloride resin sheets 2 and 5 thus obtained are laminated,
The upper and lower ends of 6 are integrated with each other via the fixing metal fitting 7.
As shown in FIG. 2, the fixing member 7 is formed by modifying a hat-shaped steel so that both side portions thereof are folded back.

The sound insulation panel 1 manufactured as described above is vertically installed between two reverberation chambers (not shown), and white noise is generated in the reverberation chamber from a sound source speaker installed in one reverberation chamber. Then, the white noise transmitted from the sound insulation panel 1 is received by the 1/2 inch condenser type microphone installed in the other reverberation room. Then, the sound transmission loss is measured according to JIS A1416 "Sound transmission loss experimental method in laboratory". The result is shown in FIG.

[0016]

Comparative Example 1 Instead of the vinyl chloride resin sheet used in Example 1, a solventless polyurethane paint was applied to the first and second ALC panels 3 and 5 to a thickness of 2 mm and then sufficiently cured to give a comparative product. 1 is produced. The sound transmission loss of the comparative product 1 is measured in the same manner as in the above embodiment. The measurement results are also shown in FIG.

[0017]

Comparative Example 2 A partition panel (Comparative Product 2) is prepared from the first and second ALC panels 3 and 5 which are not coated with the coating material in Comparative Example 1 above. Then, the sound transmission loss was measured in the same manner as above, and the result is shown in FIG.

As is clear from Example 1 and Comparative Examples 1 and 2 above, the sound insulation panel 1 of the example according to the present invention has the best sound transmission loss, and D45 defined in JIS A1419 "Sound insulation class of buildings" is specified. Have cleared.

[0019]

Example 2 Volume density 80 kg / cubic m as an inorganic fiber layer in the air layer 4 of the sound insulation panel 1 having the structure described in Example 1.
And the same sound transmission loss is measured. The result is shown in FIG. This result also clears D45.

The present invention is not limited to the above-described embodiments, and the embodiments can be modified and implemented without departing from the fundamental technical idea of the present invention and not significantly impairing the effects of the invention. For example, the ratio (T2 / T1) of the thickness (T1) of the first and second ALC panels 3 and 6 and the thickness (T2) of the first and second vinyl chloride resin sheets 2 and 5 is 0.04 to.
It can be changed within the range of 0.1. In this case, T1
Is preferably 75 mm or less and T2 is preferably 1.5 mm or more.
Even if T1 and T2 are unnecessarily increased beyond the above range, not only the effect over the mass law cannot be expected, but also the weight and the cost are increased.

Since the resonance transmission phenomenon occurs in the low frequency range, the thickness of the intermediate layer can be changed within the limit of exhibiting the function as a partition panel as long as it is 20 mm or more. AL
The bulk specific gravity (excluding the weight of the reinforcing material) of the C panel is not obtained by a special production method, and that produced by a method known per se is used. Therefore, the bulk specific gravity is 0.45
Since 0.55 is used, the sound insulating panel of the present invention does not significantly impair the workability as a partition panel.

Further, other decorative materials such as surface-treated plaster board can be attached to both outer surfaces of the sound insulation panel of the present invention.

[0023]

As described in detail above, the present invention exhibits excellent sound transmission loss as a sound insulation panel using an ALC panel, and exhibits excellent performance as a partition of a building.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a sound insulation panel according to the present invention.

FIG. 2 is a partial perspective view of an attachment metal used to form the panel.

FIG. 3 is a diagram showing a loss tangent of a vinyl chloride resin sheet according to the present invention.

FIG. 4 is a diagram showing measurement results of sound transmission loss in Example 1 and Comparative Examples 1 and 2.

FIG. 5 is a diagram showing the sound transmission loss measurement result of the second embodiment.

[Explanation of symbols]

 1 Sound insulation panel 2 Vinyl chloride resin sheet 3 Lightweight cellular concrete panel 4 Air layer and / or inorganic fiber layer 5 Vinyl chloride resin sheet 6 Lightweight cellular concrete panel

Claims (6)

[Claims] 1. Light-weight cellular concrete panels (3, 6) having a vinyl chloride resin sheet (2, 5) adhered to at least one side by an adhesive agent, an air layer and / or an inorganic fiber layer (4). A sound-insulating panel, characterized in that the above-mentioned one surfaces are laminated so as to face each other through an intermediate layer such as. 2. The sound insulation panel according to claim 1, wherein the loss tangent of the vinyl chloride resin sheet is 0.5 or more at room temperature. 3. The ratio of the thickness T1 of the lightweight cellular concrete panel to the thickness T2 of the vinyl chloride resin sheet (T2 /
The sound insulating panel according to claim 1, wherein T1) is 0.04 to 0.1. 4. The sound insulation panel according to claim 1, wherein the bulk specific gravity of the lightweight cellular concrete panel is in the range of 0.45 to 0.55. 5. The adhesiveness of the adhesive to the lightweight cellular concrete panel is lower than that to the vinyl chloride resin, and the hardness after the adhesive is cured is higher than the hardness of the vinyl chloride resin. Sound insulation panel. 6. The sound insulating panel according to claim 1, wherein the thickness of the intermediate layer is 20 mm or more.