KR20220064635A - Double-sided soundproof panel with anti-glare function - Google Patents

Abstract

The present disclosure relates to a double-sided soundproof panel having an anti-glare function to prevent glare to nearby residents or vehicle drivers due to light reflected from a soundproof wall because the double-sided soundproof panel is transparent but can prevent light reflection. In one embodiment of the present disclosure, provided is a double-sided soundproof panel having an anti-glare function and comprising a base material layer and anti-glare layers formed on both sides of the base material layer, wherein the anti-glare layers are constituted with a plurality of projections and contain anti-glare particles.

Description

Double-sided soundproof panel with anti-glare function

The disclosed content relates to a soundproofing panel that can be used to prevent noise from a road surface, a residential area, and the like.

Unless otherwise indicated herein, the contents described in this identification are not prior art to the claims of this application, and the description in this identification is not admitted to be prior art.

Light pollution refers to a condition in which excessive light due to improper use of lighting or light leaking out of the lighting area to be illuminated interferes with a person's healthy and comfortable life or damages the environment. In addition to artificial lighting, light pollution is also caused by sunlight. For example, there is damage caused by sunlight reflected on the windows of high-rise buildings. The sunlight reflected on the glass windows of high-rise buildings causes glare to nearby residents and pedestrians, obstructing the view. In order to solve this problem, methods for adhering a film to a glass window or coating a glass surface have been devised.

As an example of reducing light reflection of glass by attaching a film to a glass window, Korean Patent Laid-Open No. 10-2013-0130013 (published on November 29, 2013) discloses a glazing substrate; and a reflective polarizing film article attached to the window glass substrate, the reflective polarizing film article comprising: a reflective polarizing film; and a reflection inhibitor layer, wherein the reflective polarizing film article reduces the transmittance of light polarized with a horizontal polarization blocking axis, and the reflective polarizing film article reduces the horizontally polarized light of horizontally polarized incident visible light. An article that reduces by 90% or less is disclosed.

Furthermore, as an example of reducing the light reflection effect of glass by coating the surface of the glass, Korean Patent Publication No. 10-2017-0077217 (published on July 5, 2017) is a coated glass article, the coating The glassware used is a glass substrate; and a coating deposited over the glass substrate, wherein the coating comprises: i. a first inorganic metal oxide layer deposited over the major surface of the glass substrate, wherein the first inorganic metal oxide layer has a refractive index of at least 1.8, ii. and a second inorganic metal oxide layer deposited over the first inorganic metal oxide layer, wherein the second inorganic metal oxide layer has an index of refraction of 1.6 or less, wherein the coated glass article has a total of 6.5% or less. A coated glass article exhibiting visible light reflectance is disclosed.

As above, if a film is attached to the surface of the glass or the glass surface is coated, there is a problem in that the film and coating are peeled off when the glass is exposed to the outside for a long time. That is, the durability is poor and there is a hassle of having to restore the peeled film and coating again.

On the other hand, a sound barrier refers to a structure installed on a road surface, a residential area, etc. to prevent noise caused by the passage of vehicles. Most of the soundproofing panels constituting the soundproof wall are made of transparent materials in consideration of the aesthetics of road surfaces and residential areas. Due to such a transparent material, there is a phenomenon in which light is reflected on the transparent sound barrier as in the glass, which causes glare to car drivers and residents.

Korean Patent Publication No. 10-2013-0130013 (published on November 29, 2013) Korean Patent Publication No. 10-2017-0077217 (published on Jul. 5, 2017)

The disclosed invention is to provide a double-sided soundproof panel having an anti-glare function that is transparent but can prevent light reflection, so that nearby residents or motorists do not suffer glare caused by light reflected from a sound barrier.

In addition, it is not limited to the technical problems as described above, and it is obvious that another technical problem may be derived from the following description.

The disclosed content includes a base layer and an anti-glare layer formed on both sides of the base layer, wherein the anti-glare layer is made of a plurality of protrusions and contains anti-glare particles. It is presented as an example.

According to the features of the disclosed subject matter, the cross-section of the projection is characterized in that any one of a triangular, circular, and oval shape.

According to the double-sided soundproofing panel having an anti-glare function according to an embodiment of the disclosed content, it is transparent, but it is possible to prevent light reflection, so there is an advantage in that nearby residents or motorists do not suffer glare by the light reflected from the soundproof wall. .

In addition, the disclosed invention has the advantage that the anti-glare layer and the base layer are manufactured in a co-extrusion method, so the process is simple, and since the three layers are integrally formed, it can be used for a long time without replacement.

In addition, the disclosed invention has an advantage in that the anti-glare layer is made of protrusions, so the anti-glare effect is excellent, and the anti-glare effect is maximized by further including anti-glare particles.

Furthermore, the disclosed invention has the advantage that the anti-glare effect can be maintained by the anti-glare particles contained in the anti-glare layer even if the anti-glare layer is exposed to the external environment and cut.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a cross-sectional view of a double-sided soundproof panel having an anti-glare function according to an embodiment of the present disclosure;
2 is a cross-sectional view of an anti-glare layer of a double-sided soundproof panel having an anti-glare function according to an embodiment of the present disclosure;
3 is a cross-sectional view of an anti-glare layer of a double-sided soundproof panel having an anti-glare function according to another disclosed embodiment;

Hereinafter, with reference to the accompanying drawings, the configuration and effects of preferred embodiments of the disclosed contents will be described. For reference, in the following drawings, each component is omitted or schematically illustrated for convenience and clarity, and the size of each component does not reflect the actual size. In addition, the same reference numerals refer to the same components throughout the specification, and reference numerals for the same components in individual drawings will be omitted.

As shown in FIG. 1 , the double-sided soundproof panel having the disclosed anti-glare function includes a base layer 10 and an anti-glare layer 20 formed on both surfaces of the base layer 10 . As shown in FIGS. 2 and 3 , the anti-glare layer 20 includes a plurality of protrusions 21 and contains anti-glare particles 22 .

The base layer 10 is a layer that becomes the main body of the soundproof panel having the disclosed anti-glare function, and serves to prevent the shape of the soundproof panel from being deformed by an external force. For a transparent sound barrier, the base layer 10 should be made of a transparent material, and in order to prevent the shape of the disclosed soundproof panel from being deformed, it should be made of a material with good durability. Any material may be used as the base layer 10 as long as it is transparent and has excellent durability, and synthetic resin is preferable for ease of use. Examples include polyethylene (PE), polyvinyl chloride (PVC), polyvinyl alcohol (PVA), polycarbonate (PC), polystyrene (PS), polymethyl methacrylate (PMMA), and the like. Among them, polycarbonate (PC) and polymethyl methacrylate (PMMA) are most preferable. Polycarbonate (PC) and polymethyl methacrylate (PMMA), one of the thermoplastic plastics, have excellent durability and are not damaged by external impact. In addition, due to excellent weather resistance, deformation does not occur due to weather phenomena such as rain or snow or temperature changes according to seasons. Since the above material is colorless and transparent, when the disclosed soundproofing panel is manufactured as a soundproofing wall, the aesthetics of the surrounding environment in which the soundproofing wall is installed may not be impaired.

The base layer 10 is preferably formed to a thickness of 6 to 12 millimeters (mm). If the thickness of the base layer 10 is less than 6 mm, it is too thin to serve as the main body of the disclosed sound insulation panel 100, so there may be a problem that the shape is deformed. On the other hand, if the thickness of the base layer 10 is more than 12 mm, it is not easy to install the disclosed sound insulation panel 100 as a sound barrier, and there is a problem of wasting material.

The anti-glare layer 20 is formed on both sides of the base layer 10 to prevent light reflection of the soundproof panel, and the disclosed soundproof panel 100 has an anti-glare function.

When the anti-glare layer 20 is formed on both sides of the base layer 10 instead of only one side, the anti-glare effect of the soundproof panel is increased to further enhance the anti-glare effect. In addition, when the anti-glare layer 20 is formed on both sides of the base layer 10, there is no need to distinguish the inside and the outside of the soundproof panel, so there is an advantage of convenient construction when constructing a soundproof wall with the disclosed soundproofing panel 100. In addition, when the anti-glare layer 20 is formed on both sides of the base material layer 10, the light reflection prevention effect is uniformly exhibited no matter which direction the disclosed soundproofing panel 100 is installed, so that the soundproofing wall composed of the disclosed soundproofing panel 100 is illuminated. It has the advantage of being able to exert an anti-glare effect regardless of time and direction of sunlight.

Since the surface of the anti-glare layer 20 is not flat, it can effectively prevent light reflection. That is, the anti-glare layer 20 is composed of a plurality of protrusions 21 to effectively prevent light reflection.

The shape of the cross-section of the protrusion 21 is characterized in that any one of a triangular, semi-circular and semi-elliptical shape. In addition, it can be formed in a square, rectangular, trapezoidal shape, etc., but in order to simplify the process, it is preferable to set it as any one of a triangular, semicircular, and semielliptical shape. As the protrusions 21 are irregularly arranged, the effect of preventing light reflection may be increased.

The anti-glare layer 20 is also preferably made of a material having a high light transmittance so that light entering the soundproof panel 100 does not collide with the soundproof panel 100 and is not reflected. In addition, since the anti-glare layer 20 should consist of a plurality of protrusions 21 , it is preferable to use a material having relatively excellent moldability. As long as it is a synthetic resin having excellent transparency and moldability as described above, the material of the anti-glare layer 20 may be used. Examples include polyethylene (PE), polyvinyl chloride (PVC), polyvinyl alcohol (PVA), polystyrene (PS), polymethyl methacrylate (PMMA), and the like. In particular, it is preferable to use polystyrene (PS) or polymethyl methacrylate (PMMA).

In order to increase the light reflection prevention effect of the disclosed soundproofing panel 100, it is preferable to determine the material so that the refractive index of light in the base layer 10 and the anti-glare layer 20 is similar. Therefore, if the material of the base layer 10 is polycarbonate (PC), the material of the anti-glare layer 20 is preferably polycarbonate (PC). If the material of the base layer 10 is polymethyl methacrylate (PMMA), the material of the anti-glare layer 20 is preferably polymethyl methacrylate (PMMA). As such, the material of the anti-glare layer 20 may be selected according to the material of the base layer 10 .

The anti-glare layer 20 may further include a UV stabilizer. The UV stabilizer serves to block or reduce the absorption of ultraviolet light by the synthetic resin. Due to the UV stabilizer, the anti-glare layer 20 is not easily decomposed, and yellowing does not occur. UV stabilizers include a UV absorber that absorbs UV rays and converts them into thermal energy, a quencher that absorbs chromophore energy and releases it as thermal energy, and a UV stabilizer that terminates free radical reactions during decomposition reactions by UV rays. Hals, etc. Among them, a Hals-based UV stabilizer that has excellent surface protection and can be applied to thin-walled articles is most preferred as the UV stabilizer. Even if the Hals-based UV stabilizer is added to polycarbonate (PC) or polymethyl methacrylate (PMMA) that can be used in the anti-glare layer 20, it does not affect the properties of the materials.

The thickness of the anti-glare layer 20 is characterized in that 10 to 200 micrometers (㎛). If the thickness of the anti-glare layer 20 is less than 10 μm, the anti-glare layer 20 is too thin, so the anti-glare effect is small and the anti-glare function cannot be properly exhibited. On the other hand, if the thickness of the anti-glare layer 20 is more than 200 μm, there are many anti-glare particles required for the anti-glare layer, which causes a problem in that the manufacturing cost is increased. The thickness of the anti-glare layer 20 formed on both sides of the base layer 10 may be the same or different. For the convenience of construction, it is preferable that the thickness of the anti-glare layer 20 formed on both sides of the base layer 10 is the same.

On the other hand, the anti-glare layer 20 is characterized in that it contains the anti-glare particles (22). The anti-glare particle 22 refers to a bead made of synthetic resin, and serves to prevent light passing through the anti-glare layer 20 together with the projection 21 from being reflected. If necessary, only one of the anti-glare layers 20 may contain the anti-glare particles 22 .

The anti-glare particles 22 are evenly distributed in the anti-glare layer 20 to maximize the anti-glare effect of the soundproof panel 100 . That the anti-glare particles 22 are evenly distributed in the anti-glare layer 20 means that the anti-glare particles 22 are embedded in the surface of the anti-glare layer 20 as well as included in the anti-glare layer 20 . The more the anti-glare particles 22 distributed on the surface of the anti-glare layer 20, the better the light reflection prevention effect.

Since the anti-glare particles 22 are evenly distributed in the anti-glare layer 20, the anti-glare effect can be maintained even when the disclosed sound insulation panel 100 is used for a long period of time. When the disclosed soundproofing panel 100 is exposed to the external environment and used, the surface of the anti-glare layer 20 is scraped, and accordingly, the anti-glare particles 22 contained in the anti-glare layer 20 are on the surface of the anti-glare layer 20. will be located Therefore, the disclosed soundproofing panel 100 can be maintained as it is, without reducing the anti-glare effect even after using it for a long time.

It is preferable to use a bead made of a material having a similar refractive index to the anti-glare layer 20 as the anti-glare particle 22 . That is, when the anti-glare layer 20 is made of polycarbonate (PC) resin, it is preferable to use polystyrene (PS) beads as the anti-glare particles 22 . In addition, when the anti-glare layer 20 is made of polymethyl methacrylate (PMMA) resin, the anti-glare particles 22 are preferably made of polymethyl methacrylate (PMMA) beads. This is to effectively mix the anti-glare particles 22 with the anti-glare layer 20 , and to maximize the anti-glare effect of the anti-glare layer 20 .

The anti-glare particle 22 is characterized in that it occupies 10 to 60% of the volume of the anti-glare layer (20). If the volume occupied by the anti-glare particles 22 in the anti-glare layer 20 is less than 10%, the amount of the anti-glare particles 22 spanning the surface of the anti-glare layer 20 is small and the anti-glare effect of the anti-glare layer cannot be maximized. On the other hand, if the volume occupied by the anti-glare particles 22 in the anti-glare layer 20 is more than 60%, the problem of aggregation of the anti-glare particles 22 with each other in the manufacturing process of the sound insulation panel 100 and the protrusions of the anti-glare layer 20 are properly formed Unexpected problems may arise.

The anti-glare particles 22 have a particle diameter of 2 to 40 micrometers (㎛). If the particle diameter of the anti-glare particles 22 is less than 2 μm, there is a high probability that the light reaching the sound insulation panel will pass between the anti-glare particles 22 , so that the anti-glare effect of the anti-glare layer cannot be maximized. On the other hand, when the particle diameter of the anti-glare particles 22 is more than 40 μm, the light hitting the anti-glare particles repeats reflection and eventually the anti-glare layer reflects the light, thereby weakening the light reflection prevention function may occur.

The size of the anti-glare particles 22 may be constant or may vary within the above range. As the size of the anti-glare particles 22 is varied, the anti-glare effect may be greatly increased.

The manufacturing process of the sound insulation panel 100 is as follows.

A material to be the base layer 10 and the anti-glare layer 20 is prepared. The material of the anti-glare layer 20 includes anti-glare particles 22 which are synthetic resin beads. And, the material of the anti-glare layer 20 may further include a UV stabilizer. The materials of the base layer 10 and the anti-glare layer 20 are put into separate extruders and melted. The molten materials are co-extruded to form the anti-glare layer 20 on both sides of the base layer 10 integrally. Since the base layer 10 and the anti-glare layer 20 are integrally formed, the anti-glare layer 20 does not easily fall off compared to the conventional film or coating method, so the durability is good, and there is an advantage that it does not need to be replaced frequently.

The anti-glare layer 20 co-extruded as described above forms a protrusion 21 on the surface through a process of pressing with a roll. In the roll crimping process, the anti-glare layer is passed through the roll engraved with the same shape as the protrusion of the anti-glare layer in contact with it. The roll may be made of metal or rubber. When the roll compression process is completed, the soundproof panel 100 in which the base layer 10 and the anti-glare layer 20 with the projections are integrally formed is completed.

Although preferred embodiments of the present invention have been described with reference to the accompanying drawings, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and represent all of the technical spirit of the present invention. Therefore, it should be understood that there may be various equivalents and modifications that can be substituted for them at the time of filing the present application. Therefore, the embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following claims rather than the detailed description, and the meaning and scope of the claims and their All changes or modifications derived from the concept of equivalents should be construed as being included in the scope of the present invention.

10 base layer
20 Anti-glare layer
21 turn
22 anti-glare particles

Claims (11)

base layer; and
Including; anti-glare layers formed on both sides of the base layer;
The anti-glare layer is made of a plurality of protrusions and double-sided soundproof panel having an anti-glare function, characterized in that it contains anti-glare particles
The method according to claim 1,
The cross-section of the protrusion is a double-sided soundproof panel having an anti-glare function, characterized in that any one of a triangular, semi-circular and semi-elliptical shape
The method according to claim 1,
The material of the base layer and the anti-glare layer is polycarbonate, and the material of the anti-glare particle is polystyrene.
The method according to claim 1,
The material of the base layer, the anti-glare layer and the anti-glare particle is a double-sided soundproof panel having an anti-glare function, characterized in that it is polymethyl methacrylate.
The method according to claim 1,
The anti-glare layer is a double-sided soundproof panel having an anti-glare function, characterized in that it further contains a UV stabilizer.
The method according to claim 1,
Double-sided soundproof panel having an anti-glare function, characterized in that the anti-glare particles occupy 10 to 60% of the volume of the anti-glare layer
The method according to claim 1,
The thickness of the base layer is a double-sided soundproof panel having an anti-glare function, characterized in that 6 to 12 millimeters (mm)
The method according to claim 1,
The double-sided soundproof panel having an anti-glare function, characterized in that the thickness of the anti-glare layer is 10 to 200 micrometers (㎛)
The method according to claim 1,
The double-sided soundproof panel having an anti-glare function, characterized in that the particle diameter of the anti-glare particles is 2 to 40 micrometers (㎛)
The method according to claim 1,
The double-sided soundproof panel having an anti-glare function, characterized in that the base layer and the anti-glare layer are integrally formed by co-extrusion
The method according to claim 1,
The protrusion is a double-sided soundproof panel having an anti-glare function, characterized in that it is formed by pressing the surface of the anti-glare layer with a roll.

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