JP2003232015A - Composite soundproof panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a soundproof panel excellent in fireproofness, insulation property and heat insulation property and, at the same time, improving problems such as strength and impact resulting from a defect of an inorganic board to make it light and excellent in handling efficiency as well as the facilitation of construction work. <P>SOLUTION: The composite soundproof panel 1 includes the inorganic board 3 having an uneven face or a porous layer 2 on the surface and a fiber- reinforced resin layer 4 connected to the board 3 through the uneven face or the porous layer, and the soundproof panel 1 is substantially combined with the board 3 by making a matrix resin of the fiber-reinforced resin layer 4 get into the uneven face or the porous layer 2. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof panel for blocking noise from a sound source, and is suitable for a soundproof wall such as railings for railroads or roads, or a veranda for apartments, condominiums, etc. Regarding

[0002]

2. Description of the Related Art Conventionally, soundproof walls installed on, for example, viaducts and highways are inexpensive and are usually made of concrete walls or metal panels. In addition, the balcony of the apartment, etc. is composed of an inorganic board with a steel frame, or a concrete ALC panel or P
Most of them are composed of C panels.

[0003]

However, in the case of a metal panel, it is necessary to withstand wind pressure, so that it has a predetermined thickness, and as a result, the weight increases and it is necessary to reinforce the columns, and the unit price of the panel itself is low. Even if there is, there is a disadvantage that a large heavy machine is required to carry it to the installation location, and the construction cost is not necessarily low. In addition, since concrete ALC panels and PC panels also have a considerable amount of weight, it is necessary to increase the strength of the skeleton itself.
There is a problem that the material itself is cheap and the construction cost as a whole is not always cheap.

In recent years, a panel (wall) made of fiber reinforced resin has been studied from the viewpoint of such lightness and workability. However, since the exposed surface is a fiber reinforced resin structure, it itself. There is a problem that the fire protection performance is poor.

On the other hand, since the inorganic board used for the outer wall of the building is excellent in formability as well as fireproofness,
Boards with excellent design such as stone masonry and block tone are on the market. Recently, an inorganic board that is mixed with talc, glass balloon, etc. and has excellent heat retention, heat insulation, and light weight (construction property) is commercially available. However, since the board is attached to a solid foundation frame, it is strong. I don't need much. Although it is a board with excellent performance like this,
Since the material is composed only of inorganic materials, it has a drawback that the strength of the single substance is small and it is weak against impact.

The present invention has excellent fireproofness, heat retention, and heat insulation, and has improved the problems of strength and impact, which are the disadvantages of inorganic boards, and does not require heavy machinery and is light and easy to handle. The purpose is to provide a panel.

[0007]

In order to solve the above problems, a composite soundproof panel according to the present invention comprises an inorganic board having an uneven surface or a porous layer on the surface thereof, and the board having the uneven surface or the porous layer interposed therebetween. A composite soundproof panel including a fiber-reinforced resin layer bonded to a substrate, wherein the matrix resin of the fiber-reinforced resin layer enters the uneven surface or the porous layer to be substantially integrated with the board. Is characterized by.

Here, the "soundproofing" referred to in the present invention is a concept including "sound insulation".

In the composite soundproof panel of the present invention, since the inorganic board and the fiber reinforced resin are integrally formed with the fiber reinforced resin layer through the uneven surface of the surface of the inorganic board, the problem of rust is basically generated. Not only that, it also has excellent corrosion resistance, which makes it possible to greatly improve durability and greatly extend service life. Further, since it is lightweight and excellent in handleability, there is an advantage that a large heavy machine is not required even during transportation and mounting.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below.

In the composite soundproof panel according to the present invention, as described above, the matrix resin of the fiber reinforced resin layer permeates the uneven surface or the porous layer formed on the surface of the inorganic board to be substantially integrated. Composed of structure. With such a configuration, the matrix resin of the fiber-reinforced resin layer enters into the board having the uneven surface, so that the two are firmly integrated and the strength and impact performance can be significantly improved.

As the matrix resin constituting the fiber reinforced resin layer, for example, a thermosetting resin such as an epoxy resin, an unsaturated polyester resin, a vinyl ester resin or a phenol resin can be used. Layered compounds (eg, mica, molybdenum disulfide, boron nitride, etc.), needle-like compounds (eg, zonotolite, potassium titanate, carbon fiber, etc.), granular and plate-like compounds (eg, ferrite, etc.) in the resin. The addition of (talc, clay, etc.) causes conversion to frictional heat due to mutual movement between inorganic crystals or between inorganics and matrix resin. By filling the above filler, elastic modulus and density are increased, and resistance to vibration is increased. And the damping characteristics are improved. Therefore, the resonance of the sound insulation panel itself due to the vibration of the viaduct during the train operation and the vibration on the road bridge girder can be reduced. Further, the inorganic board itself of the composite soundproof panel, for example, fiber-reinforced cement, calcium silicate, since it is a non-combustible material such as slab gypsum cement plate, it has excellent fireproof performance, but fireproof of the matrix resin of the fiber-reinforced resin layer. In order to improve the function, a thermosetting resin such as an epoxy resin, an unsaturated polyester resin, or a vinyl ester resin to which flame retardancy (for example, aluminum hydroxide, bromine, or inorganic powder is mixed) is added is preferable, Among them, the phenol resin is excellent in flame retardancy by itself, and is inexpensive, and thus is preferably used. Particularly, when a phenol resin is used, excellent fire resistance can be obtained and is preferable, and as the reinforcing fiber of the fiber-reinforced resin, depending on the application and use conditions, glass, carbon fiber, or other inorganic fibers, aramid, nylon, Organic fibers such as polyester fibers can be used. The blending amount of these fibers is preferably in the range of 10 to 70% by weight with respect to the weight of the matrix resin. In order to obtain a lightweight and high-strength fiber-reinforced resin, carbon fiber is most preferable, but a glass / carbon fiber hybrid is also preferable in order to balance the cost. As the form of the fiber used, cloth, mat, strand or the like can be preferably used. Further, any kind of carbon fiber may be used in view of high strength and rigidity of carbon fiber, but in view of lower cost, it is most preferable to use carbon fiber in the form of so-called large tow. For example, the number of filaments of one carbon fiber thread is not less than the usual 10,000, but in the range of 10,000 to 300,000,
More preferably, it is better to use the tow-shaped carbon fiber filament yarns in the range of 50,000 to 150,000, the resin impregnation property, the handling property as a reinforcing fiber base material, and the economy of the reinforcing fiber base material. It is preferable because it is more excellent in sex. In addition, a reinforcing fiber base is formed by laminating a plurality of layers of reinforcing fibers according to need or required mechanical properties, and the reinforcing fiber base is impregnated with a resin. The reinforcing fiber layer to be laminated can be appropriately laminated with a fiber layer or a woven layer aligned in one direction, and its fiber orientation direction is also
It can be appropriately selected according to the required strength direction.

[0013]

A preferred embodiment of the present invention will be described in more detail with reference to the drawings.

1 to 5 are drawings of an embodiment of a soundproof panel of the present invention. FIG. 1 is a sectional view in the thickness direction of the panel,
2 to 5 are cross-sectional views of panels different from the panel of FIG. FIG. 6 is a partial perspective view showing a mounting state when a single-row soundproof panel wall is used.

In FIG. 1, the soundproof panel 1 is composed of an inorganic board 3 and a fiber reinforced resin layer 4, and the board 3 has a surface on the fiber reinforced resin layer 4 side having a minute uneven surface or a porous layer 2. It has a structure.

The fiber-reinforced resin layer 4 is obtained by impregnating reinforcing fibers with a matrix resin, and the matrix resin is
By interposing the concave and convex surface of the inorganic board 3 or the porous layer 2, both members 3 and 4 are substantially integrated. That is, the resin that is filled in makes the bond between the two more rigid. In this case, inorganic board 3
The surface may be configured to have no uneven surface or a porous layer, but the bonding force between both members is reduced. Therefore,
The composite soundproof panel 1 of the present invention has a structure in which an uneven surface or a porous layer 2 is provided on or near the surface in contact with the fiber reinforced resin layer 4. The uneven surface can be formed by, for example, a transfer surface using a mesh net or sanding. The porous layer can be formed by removing pulp filler or the like mixed in the board with a chemical, and the method for forming the uneven surface or the porous layer is not particularly limited. That is, it is necessary that the joint portion of the inorganic board with the fiber reinforced resin layer has the unevenness or the porous layer provided on the inorganic boat.

The fiber reinforced resin layer 4 has a reinforcing fiber amount of at least 10% to 70% by weight. The reason is that if it is within this range, the required strength, impact resistance, and rigidity can be secured only by the composite soundproof panel alone without the need for trabecular bone, and it is possible to mount it on a span of 2 m or more. Because. It is preferably in the range of 10% to 60%. This is because if it is within this range, deterioration of the matrix resin can be more prevented while ensuring the required rigidity. The thickness of the fiber reinforced resin layer 4 is preferably in the range of 1 to 10 mm. The reason is that when a solid, low-foam, etc. is used as the encapsulating material, if the compressive strength and shear rigidity are large, the structure can withstand the above-mentioned load even if the thickness is thin, but on the contrary, the filling material This is because, when the powder is a powder or a liquid, the compressive strength and the shear rigidity cannot be expected, and it is necessary to have a structure that can withstand the load only with the fiber reinforced resin portion. When the thickness is preferably in the range of 3 to 7 mm, the necessary mechanical properties are secured together with the content of the reinforcing fiber, and the weight reduction of the panel is further promoted. Moreover, the total thickness of the panel 1 is preferably in the range of 15 to 100 mm. The reason for this is that the sound insulation properties are closely related to the mass law, and when the density of the entire panel is small, a large thickness is required, and in the case of a panel containing the above-mentioned filler, the panel itself becomes heavy. A thin panel is fine. In the panel 1 of the example of the present invention having a soundproofing performance equal to or higher than that of a 100 mm thick block wall used for viaducts, the fiber reinforced resin layer 4 has a thickness of 3 mm.
Integrated with the mm-thick inorganic board 3, the total thickness is 2
It is a 0 mm composite structure. It is preferable to appropriately select an appropriate thickness and type and form of the filling material depending on the weight of the panel, the type of sound to be generated, the frequency band, and the sound pressure level.

In FIG. 2, the composite soundproof panel 1 has a structure in which the fiber reinforced resin layer 4 is sandwiched by the inorganic boards 3 from both sides. With such a structure, it is possible to improve strength and impact resistance, which are drawbacks of the inorganic board alone.

FIG. 3 shows a composite soundproof panel 1 having a structure in which the outer periphery of the inorganic board 3 is surrounded by the fiber reinforced resin layer 4. With this structure, not only the strength and impact resistance can be further improved, but also the inorganic board can be protected against external force such as flying stones, and deterioration due to cracking can be prevented. As shown in the figure, the uneven surface of the inorganic board 3 or the porous layer 2 is on the fiber reinforced resin layer 4 surface side.

FIGS. 4 and 5 show another embodiment of the fiber-reinforced resin layer 4, which is a sandwich structure 7 having a skin-rib structure composed of a skin layer 5 and ribs 6. As a result, not only strength and rigidity but also soundproofing performance is further improved. Bending deformation can be prevented by arranging a suitable number of ribs 6 at appropriate positions. The material of the rib 6 may be any of metal, non-metal, resin and fiber reinforced resin, but fiber reinforced resin is preferable in consideration of lightness and molding integration. The rib 6 may have a plate shape, a hollow hat shape, a mountain shape, or a structure in which a lightweight core material is filled therein. Although not shown in the figure, the sandwich structure 7
It may be a structure surrounded by.

FIG. 6 shows an embodiment in which a plurality of composite soundproof panels 1 according to the present invention are attached in a straight line, and the cross section of the I-shaped steel is linearly arranged at regular intervals. The panel of FIG. 2 is fitted in the character-shaped gap portion to form a soundproof wall of a predetermined length. As described above, FIG. 6 shows a mode in which the support 8 made of metal or fiber reinforced resin is fitted, but it does not necessarily depend on the mode of the present embodiment.
In addition to mechanical connection using a nut or the like, it is preferable to appropriately change the attachment method depending on the situation and place of attachment.

[0022]

As described above, according to the composite soundproof panel of the present invention, the inorganic board having the uneven surface is integrally formed with the fiber reinforced resin layer so that the uneven surface is the fiber reinforced resin layer side. Since the combined structure is adopted, it is possible to obtain a structure in which the strength, impact resistance and rigidity are improved by the fiber reinforced resin layer without deteriorating the fireproof performance of the inorganic board. Further, since the amount of the inorganic board which is relatively heavy can be reduced, the weight is reduced and therefore the construction cost can be reduced. Further, since it is composed of an inorganic material and a fiber reinforced resin material, there is no fear of rusting, and a product having excellent durability can be obtained.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of a composite soundproof panel of the present invention.

FIG. 2 is a cross-sectional view of a composite soundproof panel of the present invention in a mode different from that of FIG.

FIG. 3 is a cross-sectional view of a composite soundproof panel of the present invention in a mode different from that of FIG.

FIG. 4 is a cross-sectional view of a composite soundproof panel of the present invention in an aspect different from that of FIG.

FIG. 5 is a cross-sectional view of a composite soundproof panel of the present invention in a mode different from that of FIG.

FIG. 6 is a partial perspective view showing a mounted state of the composite soundproof panel of the present invention.

[Explanation of symbols]

1: Composite soundproof panel 2: uneven surface or porous layer 3: Inorganic board 4: Fiber reinforced resin layer 5: Skin layer 6: Rib 7: Sandwich structure 8: Support

Claims (9)

[Claims] 1. A composite soundproof panel comprising an inorganic board having an uneven surface or a porous layer on its surface, and a fiber reinforced resin layer bonded to the board via the uneven surface or the porous layer, wherein the fiber reinforced A composite soundproof panel, characterized in that the matrix resin of the resin layer is substantially integrated with the board by entering the uneven surface or the porous layer. 2. The reinforcing fiber of the fiber reinforced resin layer is an inorganic fiber or an organic fiber, and the compounding amount thereof is 10 to 70.
The composite soundproof panel according to claim 1, wherein the composite soundproof panel is in the range of% by weight. 3. The composite soundproofing according to claim 1, wherein the matrix resin of the fiber reinforced resin layer is made of a thermosetting resin containing a flame retardant and / or a vibration damping agent. panel. 4. The fiber-reinforced resin layer has a thickness of 1-10.
mm range, the total thickness of the panel is 15-10
The composite soundproof panel according to any one of claims 1 to 3, wherein the composite soundproof panel has a range of 0 mm. 5. The composite soundproof panel according to claim 1, wherein the fiber-reinforced resin layer is laminated with the inorganic board in a sandwich form. 6. The composite soundproof panel according to claim 1, wherein the fiber reinforced resin layer is surrounded by an inorganic board. 7. The composite soundproof panel according to claim 1, wherein the fiber-reinforced resin layer is a skin-rib structure including a skin layer and ribs. 8. The composite soundproof panel according to claim 1, wherein the composite soundproof panel is fitted or mechanically joined to columns provided at predetermined intervals. 9. The composite soundproof panel according to claim 1, which is a soundproof wall for railways and roads.