KR200470795Y1 - Interfloor noise proofing material - Google Patents

Abstract

The present invention relates to a sound insulating material, and more specifically, a first sound insulating layer comprising a resin foam and a first sound insulating layer disposed on the first sound insulating layer, the second sound insulating layer comprising a resin foam; And a metal sheet formed on one surface or both surfaces of the first sound insulation layer or the second sound insulation layer, and the sound insulation material according to the present invention has excellent physical properties such as cushioning, mechanical strength, workability, and heat insulation, In particular, it is possible to effectively absorb, disperse and / or exhaust the noise and / or vibration generated by the impact.

Sound insulation, resin foam foam, metal sheet, functional layer, unevenness, polyurethane foam foam

Description

Soundproofing material {Interfloor noise proofing material}

The present invention relates to a sound insulating material, and more specifically, excellent physical properties such as cushioning, mechanical strength, workability, and heat insulating property, and in particular, can effectively absorb, disperse, and / or exhaust noise and / or vibration generated by an impact. It is about sound insulation material.

Generally In multi-collected multi-story buildings such as multi-family homes, townhouse villas, buildings, apartments, schools, hospitals, and dormitories, people live on the upper and lower floors, and are caused by the impacts and / or impacts from the upper floors. The noise of noise causes great inconvenience to the lower class. Such shocks and noises are also referred to as floor impact sounds, which means sounds and shocks generated by vibrations of the slab caused by falling and moving objects or walking of people.

The solid sound generated in such a case is transmitted to various positions with extremely low attenuation to vibrate the surface of the structure, and thus the floor impact sound is perceived as a directly reflected air transmission sound to lower people.

Recently, the noise caused by the floor impact sound is recognized as an important factor in determining the quality of the residential environment. In other words, while the consumer's desire for a comfortable living environment continues to increase, the material used for the floor structure of a multi-story building is getting thinner and lighter, and the internal noise source is increasing.

As the problem caused by the floor impact sound is highlighted as a socially important issue, it is installed on the wall or floor of the multi-story building to absorb, disperse and / or exhaust the shock and / or noise applied from the upper floor to the lower floor or the side. The research on the development of sound insulation materials for the purpose of doing so is being actively conducted.

The present invention is to solve the above problems, the object of the present invention is excellent physical properties such as cushioning, mechanical strength, workability and thermal insulation, and particularly effectively absorb noise and / or vibration caused by impact, It is to provide a sound insulation material that can be dispersed and / or exhausted.

In order to achieve the above object of the present invention,

According to an aspect of the present invention, disposed on the first sound insulation layer and the first sound insulation layer comprising a resin foam foam, the second sound insulation layer comprising a resin foam foam and the first sound insulation layer or the second sound insulation layer There is provided a sound insulation material comprising a metal sheet formed on one or both sides.

As described above, the sound insulation material according to the present invention has excellent physical properties such as cushioning, mechanical strength, workability, and heat insulation, and in particular, effectively absorbs, disperses, and / or exhausts noise and / or vibration generated by impact. Can be.

Hereinafter, with reference to the accompanying drawings, the sound insulating material according to an embodiment of the present invention will be described in detail. The accompanying drawings show exemplary forms of the present invention, which are provided only to explain the present invention in more detail, and thus the technical scope of the present invention is not limited thereto.

1 is a cross-sectional view of a sound insulation material according to an embodiment of the present invention.

The sound insulation material 1 according to an embodiment of the present invention is disposed on the first sound insulation layer 10 and the first sound insulation layer 10 including the resin foam, and the second sound insulation layer including the resin foam ( 30) and the metal sheet 20 formed on one surface or both surfaces of the first sound insulation layer or the second sound insulation layer.

In this case, the metal sheet 20 may be disposed between the first sound insulation layer 10 and the second sound insulation layer 30.

The resin foam foam constituting the sound insulating material (1) according to an embodiment of the present invention is a polyurethane foam foam, polyurea foam foam, polyvinyl chloride foam foam, polypropylene foam foam, polyethylene foam foam, polystyrene foam foam, poly One or more kinds selected from the group consisting of a vinyl acetate foam, a melamine resin foam, a phenol resin foam and a foam of any one of the derivative resins may be laminated or bonded.

The thickness of the resin foam foam constituting the sound insulating material 1 according to an embodiment of the present invention is not limited thereto, but may be, for example, 10 mm or more and 40 mm or less.

If the thickness is less than 10 mm, there is a fear that the impact sound barrier properties are inferior, the upper limit of the thickness of the foam is not particularly limited, but the thickness of the first sound insulating layer 10 and the second sound insulating layer 30 If the sum exceeds 50 mm, there is a risk of construction restrictions.

Although not particularly limited, in the present invention, it is preferable to use a polyurethane foam in view of excellent elasticity as an elastomer, easy cell structure formation, and excellent mechanical properties and impact sound barrier properties compared to other materials. Do.

Meanwhile, the metal sheet 20 is disposed between the first and second sound insulation layers 10 and 30 to have a load resistance against impact transmitted to each sound insulation layer, and to maximize the damping effect and the cushioning effect. do.

The metal sheet 20 may be, for example, a galvanized steel sheet, and is not limited thereto. A steel sheet having a thin thickness may be used as a steel sheet of another material.

In addition, the thickness of the metal sheet 20 is not limited thereto, and may be, for example, 0.05 mm to 0.3 mm. If the thickness is less than 0.05mm, there is a risk that the damping effect and the buffering effect is lowered, and if the thickness is greater than 0.3mm, construction restrictions may follow.

The sound insulation material 1 according to an embodiment of the present invention may further include a functional layer formed on one or both surfaces of the first sound insulation layer 10 or the second sound insulation layer 20.

The functional layer includes general layers in this field such as dimensionally stable layers, waterproof layers, insulation layers or reinforced board layers.

In the above dimensional stability layer is preferably used that the dimensional change rate is within 0.5%, for example, glass fiber; Synthetic resin film; And woven or nonwoven fabrics made of natural or synthetic fibers, and it is preferable to use glass fibers from the viewpoint of having excellent dimensional stability and tear strength.

In addition, examples of the waterproof layer include a liquid impermeable synthetic resin film; Or a synthetic resin impregnated or coated on a woven or nonwoven fabric such as polyester fiber.

Examples of the insulation layer include synthetic resin foam sheets such as polystyrene foam sheets, polypropylene foam sheets or polyvinylacetate foam sheets; Glass wool; Rock wool; Mineral wool; And nonwoven fabrics; Examples of reinforcing board layers include inorganic modes such as plastic boards or gypsum boards; Wood plywood; Wood powder crimp board; And mixing boards of wood powder and inorganic materials.

Meanwhile, the unevenness 11 may be formed on one or both surfaces of the resin foam according to the exemplary embodiment of the present invention, and the predetermined sound insulation layer 10 may be formed between the first sound insulating layer 10 and the bottom surface by the unevenness 11. A space (buffer) is formed, and the impact buffer and the heat insulation are improved by the space.

FIG. 1 illustrates a case where the unevenness 11 is formed on one surface of the first sound insulation layer 10 and the waterproof layer is formed on the second sound insulation layer 30. However, the present invention is not limited thereto. Various sound insulation materials can be comprised by laminating | stacking or bonding a layer single or two paper-like thing.

≪ Example 1 >

The test was conducted by dividing the case where the metal sheet was disposed between the case where the metal sheet was not disposed and the case where the metal sheet was not disposed using the first sound insulating layer and the second sound insulating layer having the same resin foam foam.

In this case, a polyurethane foam was used as the resin foam, and the thickness of the first sound insulation layer was 14.75 mm, the thickness of the second sound insulation layer was 14 mm, and the thickness of the metal sheet (zinc steel sheet) was 0.25 mm.

As a result of the floor impact sound test, it was confirmed that the sound insulation material when the metal sheet was inserted had an effect of reducing the weight floor impact sound of about 3 dB.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art having ordinary knowledge of the present invention may make various modifications, changes, and additions within the spirit and scope of the present invention. And additions should be considered to be within the scope of the following claims.

1 is a cross-sectional view of a sound insulation material according to an embodiment of the present invention.

Claims (10)

A second sound insulation layer disposed on the first sound insulation layer and the first sound insulation layer including the resin foam foam and including the resin foam foam; A metal sheet disposed between the first sound insulation layer and the second sound insulation layer and having a thickness of 0.05 mm to 0.3 mm; And One or more kinds selected from the group consisting of an impermeable synthetic resin film, a woven fabric impregnated or coated with a synthetic resin, and a nonwoven fabric impregnated or coated with a synthetic resin, formed on one or both surfaces of the first sound insulation layer or the second sound insulation layer. Sound insulating material comprising a laminated or bonded waterproofing layer. delete delete The method of claim 1, The sound insulating material further comprising a functional layer formed on one surface or both surfaces of the first sound insulation layer or the second sound insulation layer. 5. The method of claim 4, The functional layer is a sound insulating material, characterized in that at least one selected from the group consisting of a dimensional stability layer, the insulation layer and the reinforcing board layer. delete 6. The method of claim 5, The insulation is a synthetic resin foam sheet; Glass wool; Rock wool; Mineral wool; And one or more kinds selected from the group consisting of woven fabrics are laminated or bonded. 6. The method of claim 5, The reinforcement board is a plastic board; Weapon mode; Wood plywood; Wood powder crimp board; And one or more kinds selected from the group consisting of wood flour and inorganic mixed board are laminated or bonded. The method of claim 1, Sound insulating material, characterized in that irregularities are formed on one side or both sides of the resin foam. The method of claim 1, The thickness of the resin foam is sound insulating material, characterized in that 10mm to 40mm.

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