JP3886674B2 - Soundproof panel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is mainly used as a soundproof wall installed along a highway, a railway line, etc., in order to insulate and absorb noise caused by traveling of a vehicle, etc. The present invention relates to a soundproof panel that is attached as a wall body to a lower part, a lower surface part, a wall surface, a ceiling surface, or the like of a structural body.
[0002]
[Prior art]
2. Description of the Related Art As a sound absorbing panel used for insulating and absorbing noise associated with traveling of a vehicle or the like, there is one in which a sound absorbing material is housed in a hollow formed by a front plate and a back plate having a large number of holes. Such a soundproof panel allows sound to enter the hollow through the opening of the front plate, absorb the sound by the sound absorbing material, attenuate the sound by repeating the reflection in the hollow, and further sound is blocked by the back plate. It is designed not to leak to the back side.
[0003]
[Problems to be solved by the invention]
However, since the conventional sound absorbing panel as described above is constantly exposed to exhaust gas and dust discharged as the vehicle travels, there is a problem that contaminants due to these adhere and the appearance is impaired. . In the past, cleaning workers went to the installation site and wiped off the adhering contaminants. However, this method only requires a large number of cleaning workers. Therefore, it takes time, and the work is carried out while restricting traffic. Further, there is a risk of a traffic accident of the worker himself, so the frequency of cleaning has to be reduced.
[0004]
Therefore, the present invention is intended to solve the above problems and provide a soundproof panel that reduces the cleaning work.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is configured as follows. That is, the soundproof panel according to the present invention is a soundproof panel in which a sound absorbing material is housed in a hollow formed by a front plate and a back plate having a large number of openings, and the front plate of the soundproof panel is made of antifouling paint. An antifouling layer is formed , the front plate is made of aluminum, and the antifouling paint is composed of a vinyl polymer or copolymer containing a silyl group in the main chain and bonded to a hydrolyzable group at the molecular end or side chain. An antifouling layer comprising, as a main component, an acrylic silicone resin having at least one silicon group per molecule, and the antifouling paint is directly applied to the aluminum surface of the front plate without primer treatment And the antifouling layer is the outer surface of the front plate .
[0006]
According to the present invention, the antifouling layer formed of the antifouling paint has antifouling property, so that the pollutant is difficult to adhere, and even if it adheres, it can be easily wiped away, so that the cleaning work is reduced.
[0007]
Examples of such antifouling paints include inorganic antifouling paints composed mainly of silica components and water-based paints such as sodium silicate, which are fired by adding various components, and organic materials such as fluororesins and urethane resins. There are organic and inorganic hybrid antifouling paints such as acrylic antifouling paints, acrylic silicone resins, and photocatalytic antifouling paints utilizing photocatalytic action such as titanium oxide.
[0008]
On the other hand, the front plate of the soundproof panel is generally made of aluminum in order to form a large number of apertures and to reduce the weight. However, when an antifouling paint optimal for the front plate made of aluminum is studied, the photocatalyst When a paint is used, it cannot be applied directly to the aluminum surface due to its strong oxidizing power, and it is necessary to first apply a primer treatment to the aluminum surface. The thickness is as thin as several μm including the primer treatment layer, and there is a problem that pinholes are likely to occur.
[0009]
In addition, when using an inorganic antifouling paint, primer treatment is usually unnecessary, and the resulting coating film is hard, but it is brittle, causing problems in workability after painting, and the film thickness of the obtained coating film is also Similar to the photocatalyst paint, there is a problem that it is as thin as about 10 μm and pinholes are likely to occur.
[0010]
On the other hand, organic antifouling paints and organic / inorganic hybrid antifouling paints usually do not require primer treatment, and can be applied directly to the aluminum surface, making the painting work easy and also being obtained. Since the film thickness is as thick as about 20 to 30 μm and pinholes are hardly generated, the workability and rust resistance are superior to the photocatalyst paint and the inorganic antifouling paint.
[0011]
In particular, the organic / inorganic hybrid antifouling paint has high hardness and is hard to damage the surface, and also has excellent chemical resistance against oil components contained in vehicle waste gas. It is most suitable as a dirt paint, and among these, the main chain is composed of a silyl group-containing vinyl polymer or copolymer, and at least one silicon group bonded to a hydrolyzable group at the molecular end or side chain is present in one molecule. The one having a so-called acrylic silicone resin as a main component has not only excellent resistance to contamination but also extremely excellent weather resistance, so that it is extremely suitable for a soundproof panel installed outdoors.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be specifically described with reference to FIG.
That is, FIG. 1 is a sectional view showing an embodiment of a soundproof panel according to the present invention.
[0013]
In the drawings, reference numeral 1 denotes a soundproof panel, and a sound absorbing material such as glass wool is formed in a hollow formed by a front plate 2 having a large number of apertures 21 made of aluminum and a back plate 3 made of a zinc iron plate behind it. 4 is built in, and the noise that enters the hollow through the opening 21 of the front plate 2 is absorbed by the sound absorbing material 4 and is also sound-insulated by the back plate 3 so that the sound does not leak to the back side. It is normal. The opening 21 may be formed in a slit shape or may be formed in a punching shape, and the form thereof is not particularly limited.
[0014]
Reference numeral 5 denotes an antifouling layer made of an antifouling paint formed on the front plate 2 and the back plate 3 of the soundproof panel 1, and the antifouling paint in this embodiment is mainly composed of an acrylic silicone resin and appropriately plasticized. A coating composition in which an agent, a coloring pigment, an extender pigment, an organic solvent and the like are mixed is used.
In order to form the antifouling layer 5 on the front plate 2 and the back plate 3, the coating composition can be applied by a usual appropriate coating method such as brush coating, spraying, dipping, roll coater, flow coater or the like.
[0016]
The antifouling layer 5 preferably has a thickness of about 10 to 30 μm in order to provide anti-contamination and rust prevention.
[0017]
Further, in this embodiment, the antifouling layer 5 is formed on the front plate 2 and the back plate 3, respectively, but may be formed only on the front plate 2 that is easily contaminated facing the vehicle or the like.
[0018]
【The invention's effect】
According to the present invention, the antifouling layer formed of the antifouling paint has antifouling property, so that the pollutant is difficult to adhere, and even if it adheres, it can be easily wiped away, so that the cleaning work is reduced.
[0019]
In addition, when aluminum is used for the front plate of the soundproof panel, the use of an anti-fouling paint mainly composed of an acrylic silicone resin is not only excellent in stain resistance but also extremely weatherproof. Because of its superiority, it is extremely suitable for soundproof panels installed outdoors.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of a soundproof panel according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Soundproof panel 2 Front plate 21 Opening hole 3 Back plate 4 Sound absorbing material 5 Antifouling layer

Claims (1)

A soundproof panel in which a sound absorbing material is housed in a hollow formed by a front plate and a back plate having a large number of apertures, wherein a stainproof layer is formed on the front plate of the soundproof panel by a stainproof paint, The face plate is made of aluminum, and the antifouling coating is composed of a silyl group-containing vinyl polymer or copolymer in the main chain, and a silicon group bonded to a hydrolyzable group at the molecular end or side chain in one molecule. The main component is an acrylic silicone resin having at least one, and the antifouling paint is directly applied to the aluminum surface of the front plate without primer treatment to form an antifouling layer. soundproofing panel characterized in that made with the outer surface of the front plate.

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