JP2008045354A - Vibration control sound insulating material and floor structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration control sound insulating material and a floor structure, capable of reducing manufacturing cost, and capable of shortening a construction period, while excellently holding adhesion of a backing material and a finishing material being a floor material. <P>SOLUTION: This vibration control sound insulating material 1 is formed as a structure including asphalt, an inorganic filler and a plasticizer, and sticking a mold releasing material 3 to both surfaces of a flexible and pressure sensitive adhesive asphalt material 2. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vibration damping and sound insulating material and a floor structure, and more particularly, it is used for floors and walls of a building such as a house to prevent transmission of vibration and noise, and can be easily constructed without using an adhesive. The present invention relates to a vibration damping and sound insulation material and a floor structure.

2. Description of the Related Art Conventionally, as a vibration and sound insulation material having a vibration damping function and a sound insulation function, particularly used in buildings such as houses, vibration damping and sound insulating sheets having excellent workability, transportability, workability, and the like have been frequently used.
This vibration and sound insulation sheet is used for the purpose of absorbing the vibration energy that has propagated through the floor (vibration) and shielding the solid propagation sound that propagates through the building frame such as flooring (sound insulation). In many cases, a vibration and sound insulation sheet is laid between the material and the material.
As is well known, the damping material absorbs the vibration energy that has propagated through the solid and dissipates part of it as thermal energy due to frictional resistance, etc., thereby reducing the sound that occurs with vibration, The sound insulating material blocks the transmission of sound waves by absorbing the energy of incident sound waves.

The more the material itself, the more difficult the material itself is to transmit sound wave energy, and the higher the surface density (mass per unit area), the more the sound damping material and sound insulation material. Loss) increases. As damping and sound insulation sheets conventionally used as these vibration damping materials and sound insulation materials, fillers such as iron sand, slag and iron powder are added to binders such as thermoplastic resin, rubber and asphalt. In general, it is mixed and dispersed to be processed into a sheet shape, and a nonwoven fabric is stuck on the front and back surfaces (see, for example, Patent Document 1).
JP 2003-74135 A

By the way, conventionally, when using a vibration-damping and sound-insulating sheet for a building, the vibration-damping and sound-insulating sheet cannot be exerted unless both the base material and the finishing material are in close contact with each other. When sandwiched and pasted, it is common to use an adhesive, but there is a tendency for the use of adhesive to be avoided from problems such as the recent sick house syndrome. The material was desired.
In addition, for the purpose of reducing manufacturing costs and shortening the construction period, it is often the case that construction is performed without using an adhesive. Therefore, a vibration damping and sound insulating material having good adhesion without using an adhesive is desired. It was.

  The present invention has been made to solve the above problems, and while maintaining good adhesion between the base material and the finishing material, which is a flooring material, it reduces production costs, shortens the construction period, etc. An object of the present invention is to provide a vibration damping and sound insulating material and a floor structure that can be realized.

In order to solve the above problems, the present invention provides the following vibration-damping and sound-insulating material and floor structure.
That is, the vibration-damping and sound-insulating material of the present invention is characterized in that a release material is stuck on both sides of an asphalt material having flexibility and adhesiveness.
In this vibration and sound insulation material, the surface of the exposed asphalt material is flexible by peeling the release material by sticking the release material on both sides of the asphalt material having flexibility and adhesiveness. And it becomes the surface which has adhesiveness, and it becomes easy to bond a base material and a finishing material to this surface, without using an adhesive agent. As a result, the workability is improved, and it becomes easy to reduce the manufacturing cost and the construction period.

The asphalt material is preferably board-shaped or sheet-shaped.
The release material is preferably a release paper or a release sheet.
The asphalt material preferably contains asphalt, an inorganic filler, and a plasticizer.
The asphalt is preferably a modified asphalt containing a synthetic rubber component.

The floor structure of the present invention is characterized in that the vibration damping and sound insulating material of the present invention is provided between the base material and the finishing material.
In this floor structure, by providing the vibration-damping and sound-insulating material of the present invention between the base material and the finishing material, the finishing material and the vibration-damping and sound-insulating material of the present invention are sequentially stacked on the base material, and predetermined from above. By pressure-bonding with the pressure, the vibration-damping and sound-insulating material, the base material, and the finishing material come into close contact with each other by the adhesive force. Therefore, the vibration-damping and sound-insulating material is in close contact with the base material and the finishing material.
Thereby, the workability of floor materials such as a house is enhanced, and it becomes easy to reduce the manufacturing cost, the construction period, and the like.

  According to the vibration-damping and sound-insulating material of the present invention, since the release material is attached to both sides of the asphalt material having flexibility and adhesiveness, the surface of the asphalt material can be made flexible by a simple operation of peeling the release material. Therefore, it is possible to easily adhere and bond the base material and the finishing material to this surface without using an adhesive. As a result, the workability can be improved, and the manufacturing cost can be reduced and the construction period can be shortened.

According to the floor structure of the present invention, since the vibration-damping and sound-insulating material of the present invention is provided between the base material and the finishing material, the vibration-damping and sound-insulating material, the base material and the finishing material can be brought into close contact with each other by adhesive force. The vibration-damping and sound-insulating material can be brought into close contact with and integrated with the base material and the finishing material by its adhesive force.
Therefore, the workability of a flooring material such as a house can be improved, and the manufacturing cost can be reduced and the construction period can be shortened.

The best mode of the vibration damping and sound insulating material and floor structure of the present invention will be described.
This embodiment is specifically described for better understanding of the gist of the invention, and does not limit the present invention unless otherwise specified.

FIG. 1 is a perspective view showing a vibration-damping and sound-insulating material according to an embodiment of the present invention. The vibration-damping and sound-insulating material 1 has a release material 3 pasted on both surfaces of an asphalt material 2 having flexibility and adhesiveness. It is worn.
The asphalt material 2 is a board having a thickness of 3 to 12 mm or a sheet having a thickness of 1 to 3 mm, and the composition thereof is a flooring containing asphalt, an inorganic filler, and a plasticizer. .

Any asphalt may be used as long as it has flexibility and adhesiveness. For example, modified asphalt obtained by heating and melting synthetic rubber in straight asphalt is preferably used.
As this modified asphalt, for example, one containing 60 to 80% by weight of straight asphalt, 10 to 20% by weight of a plasticizer, and 5 to 15% by weight of a synthetic rubber component is preferable.

The inorganic filler has a bulk specific gravity of 2.0 to ₃ mainly composed of iron (III) oxide (Fe ₂ O ₃ ) in view of securing the strength of the asphalt material 2 itself, availability, cost, and the like. An iron filler of 0.5 g / cm ³ is suitable.

  The upper limit of the proportion (content) of the inorganic filler in the total amount of the asphalt material 2 is 90% by weight in terms of ensuring the strength and molding processability of the asphalt material 2, but the strength of the asphalt material 2 and the molding process. If the demand for properties is low, it may be over 90% by weight. However, from the viewpoint of securing the vibration damping performance and sound insulation performance of the asphalt material 2, the upper limit is about 95% by weight of the conductive filler.

As the plasticizer, process oil or the like is preferably used.
As the synthetic rubber, thermoplastic block polymers such as styrene-butadiene rubber (SBR), SBS (styrene-butadiene-styrene) and SIS (styrene-isoprene-styrene), isoprene rubber (IR) and the like are preferably used.

In terms of sound insulation performance, it is preferable that the asphalt material 2 has a larger specific gravity to ensure a higher surface density. The specific gravity depends on the specific gravity of the inorganic filler and the mixing amount. The specific gravity of the asphalt material 2 is preferably 2.0 to 4.0 g / cm ³ , more preferably 2.10 to 4.0 g / cm ³ from the viewpoints of workability as a vibration damping and sound insulating material, transportability, limit of filler input amount, cost, and the like. 5 to 3.5 g / cm ³ .

Since this asphalt material 2 contains asphalt, an inorganic filler, and a plasticizer, it has flexibility, cold resistance (having flexibility at a low temperature of 0 ° C.), heat resistance (high temperature of 40 ° C. It does not soften under).
In addition to the above substances, this asphalt material 2 may further include a synthetic resin such as polyethylene (PE), polypropylene (PP), ethylene propylene diene monomer (EPDM), ethylene vinyl acetate (EVA), Or you may add petroleum resins, such as a thermoplastic hydrocarbon resin.

  The mold release material 3 can be easily attached to the asphalt material 2 with an adhesive force equal to or lower than a predetermined adhesive force, and can be easily peeled off when a tensile force is applied with a force equal to or lower than a predetermined force. It does not remain on the asphalt material 2, and has flexibility and flexibility, and does not impair the flexibility and flexibility of the vibration damping and sound insulation material 1 as a whole. Are preferably used.

  These release papers or release sheets have functions such as maintaining the shape of the asphalt material 2 and protecting the surface. For example, the paper surface is moisture-proof processed, or polyester, polyethylene, rayon, glass, What formed polyethylene terephthalate etc. in the shape of a sheet is used suitably.

Since this asphalt material 2 contains asphalt, an inorganic filler, and a plasticizer, the vibration damping and sound insulating material 1 has moderate adhesive strength, but the initial adhesive strength after construction is Not very expensive.
If this asphalt material 2 is left for a predetermined period after construction, for example, 3 months to 6 months, the asphalt comes into close contact with other material compositions during this period, and gradually fuses with other material compositions, resulting in a higher anchor effect. Adhesive strength is exhibited. Therefore, after a predetermined period of time has elapsed after construction, it comes into close contact with other floor materials and wall materials due to high adhesive strength.
Moreover, since this asphalt material 2 does not use a nonwoven fabric, it becomes easy to recycle and save resources.

FIG. 2 is a perspective view showing an example in which the vibration-damping and sound-insulating material 1 is applied to a floor structure of a house. In the figure, 11 is a floor base material, and 12 is a finishing material.
Examples of the base material 11 include plywood, precast reinforced concrete (PCRC), and steel plate.
Examples of the finishing material 12 include a flooring material such as a flooring block.

  This floor structure is, for example, placed on the base material 11 with the exposed asphalt material 2 side down, with one release material 3 of the vibration damping and sound insulation material 1 peeled off, and a predetermined pressure is applied from above. Then, the release material 3 on the other side (in this case, the upper surface) of the vibration damping and sound insulating material 1 is peeled off, the finishing material 12 is placed on the exposed asphalt material 2, and a predetermined pressure is applied from above. It is constructed by crimping and fixing.

This asphalt material 2 is not so high in initial adhesive strength after construction, but, for example, asphalt comes into close contact with the base material 11 and the finishing material 12 during the passage of 3 to 6 months. As the degree of adhesion progresses, it gradually comes into close contact with the base material 11 and the finishing material 12, and exhibits a high adhesive force due to the anchor effect. Accordingly, after a predetermined period after construction, for example, 6 months to 12 months, the base material 11 and the finishing material 12 are adhered in close contact with each other with a high adhesive force. Therefore, the asphalt material 2 becomes a floor material in close contact with and integrated with the base material 11 and the finishing material 12.
Moreover, since this asphalt material 2 does not use a nonwoven fabric, recycling as a flooring material becomes easy and resource saving can be achieved.

In addition, although this embodiment demonstrated the case where the damping sound insulation material 1 was applied to the floor structure of a house, it is also possible to apply the damping sound insulation material 1 to the wall structure of a house.
For example, a large number of vibration control and sound insulation materials 1 are attached so as to cover the surface of the wall body made of concrete, heat insulating material, etc., and a base layer made of gypsum board or the like is attached so as to cover these vibration control and sound insulation materials 1. For example, wallpaper is applied to the surface of the formation.

Since this vibration-damping and sound-insulating material 1 has an excellent waterproof performance, when applied to a floor structure or a wall structure of a house, in addition to the vibration-damping performance and sound-insulating performance, it also ensures excellent waterproof performance. can do.
In addition, the construction efficiency can be improved and the cost can be reduced without affecting the floor height or wall design.

In addition, the specific shape, dimension, etc. of the vibration damping and sound insulating material 1 of the present embodiment can be appropriately changed according to the intended floor structure or wall structure.
Further, the asphalt material 2 may have a configuration in which, for example, calcium carbonate powder, cement powder, rock powder, liquid resin, or the like is mixed within a range that does not impair flexibility and adhesiveness.

  As described above, according to the vibration damping and sound insulating material 1 of the present embodiment, the release material 3 is adhered to both surfaces of the asphalt material 2 having flexibility and adhesiveness, and therefore the release material 3 is peeled off. By simple operation, both sides of the asphalt material 2 can be made flexible and adhesive. Therefore, other building materials can be easily put on both sides of the asphalt material 2 without using an adhesive. As a result, the workability can be improved, and the manufacturing cost can be reduced and the construction period can be shortened.

  Further, when the vibration damping and sound insulating material 1 of the present embodiment is applied to a floor structure or a wall structure of a house, the asphalt and the base material 11 and the finishing material 12, or the wall main body and the base layer adhere to each other with high adhesive strength, and the asphalt The material 2 is in close contact with and integrated with the base material 11 and the finishing material 12 or the wall body and the base layer. As a result, the workability of the floor structure or wall structure can be improved, and the manufacturing cost can be reduced, the construction period can be shortened, and the like.

  Since the vibration-damping and sound-insulating material of the present invention is obtained by sticking a release material on both sides of an asphalt material having flexibility and adhesiveness, not only the floor structure and wall structure of a house, but other than the above. The present invention can be applied to a structure that requires vibration suppression and sound insulation performance, and further to a structure that requires waterproof performance and the like, and its usefulness is very large.

It is a perspective view which shows the damping sound insulation material of one Embodiment of this invention. It is a perspective view which shows the example which applied the damping sound insulation material of one Embodiment of this invention to the floor structure of a house.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Damping and sound insulation material, 2 ... Asphalt material, 3 ... Mold release material, 11 ... Floor base material, 12 ... Finishing material.

Claims (6)

  A vibration-damping and sound-insulating material, wherein a release material is attached to both sides of an asphalt material having flexibility and adhesiveness.   The vibration and sound insulation material according to claim 1, wherein the asphalt material is a board shape or a sheet shape.   The vibration damping and sound insulating material according to claim 1, wherein the release material is a release paper or a release sheet.   4. The vibration damping and sound insulating material according to claim 1, wherein the asphalt material contains asphalt, an inorganic filler, and a plasticizer. 5.   The vibration damping and sound insulating material according to claim 4, wherein the asphalt is a modified asphalt containing a synthetic rubber component.   A floor structure comprising the vibration-damping and sound-insulating material according to any one of claims 1 to 5 provided between a base material and a finishing material.

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