KR200254604Y1 - Heat insulating, sound-absorbing, and shock-absorbing materials of crosslinked polyethylene foam - Google Patents

Abstract

The present invention relates to a method and a method for manufacturing a heat insulation, a sound absorption and a shock absorber for a building using a low-density and high-density crosslinked polyethylene sheet composed of a minute closed cell. The object of the present invention is to provide an insulation effect, To improve the mitigation and sound insulation effect.

In general, the foamed polyethylene sheet is excellent in chemical resistance, has a small hygroscopicity, and is smooth in material. Particularly, the crosslinked polyethylene sheet is excellent in moldability, light in weight, good in physical properties such as abrasion resistance and rigidity, It is excellent in insulation, sound insulation and cushioning, and thus provides excellent effects as a sound insulating and shock absorber for buildings.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a heat insulating, sound-absorbing, and shock-absorbing material of crosslinked polyethylene,

.

This design minimizes the impact sound and vibration noise generated between the upper and lower floors of the building residence boundary, thereby providing a pleasant residential living environment. In addition, the heating effect is to be reduced by doubling the insulation effect. Conventionally, materials having heat insulation and sound absorption characteristics such as lightweight foamed concrete and foamed styrofoam are used alone or in combination at the upper end of the slab to form a heat insulation and a sound absorption layer. Considering the advantages and disadvantages of existing materials, the crosslinked foamed polyethylene sheet excellent in properties such as workability, durability, buffering property, heat insulation property, and sound absorption property provides excellent functions and effects as a building material for the above-mentioned purposes. In particular, in the present invention, a foaming polyethylene sheet having a low foaming density (high density) is used on the outside so as to facilitate construction, and an aluminum foil is embossed on the upper side in consideration of the heat insulating property. In order to improve sound absorption and buffering property, ) The foamed polyethylene sheet was produced through a separate process so as to form a cylindrical perforated body.

1 (a) is a perspective view of the present invention, Fig. 1 (b) is a sectional view of Fig. 1 (a), and Fig. 1 (c) is an enlarged view of a reference numeral 1;

Figure 2 is a section view of the building floor of the present invention.

(*) Explanation of main parts and reference numbers of each drawing

1. Perforated body

2. Aluminum foil

3. High density crosslinked polyethylene sheet

4. Low density crosslinked polyethylene sheet

5. Closed cell

6. Open cell

7. Floor Finish

8. Piping layer and finishing mortar

9. Lightweight foam concrete

10. Crosslinked Polyethylene Insulation Sound Absorbing and Shock Absorber

11. Slab

The foamed polyethylene insulation-type sound absorbing and shock absorber 10 manufactured to achieve the purpose of the present invention is prepared by triple-heat-fusing a cross-linked foamed polyethylene sheet of different density range composed of fine and uniform bubbles, The aluminum foil 2 having a thickness of 쨉 m is thermally fused in an embossed form and the cross-linked foamed polyethylene sheet used in the center is a construction material having a cylindrical perforated body formed at regular intervals through a separate process.

Preferred embodiments of the present invention will now be described with reference to the accompanying drawings.

1 (a) is a perspective view of the present invention, and FIG. 1 (c) is an enlarged view of a reference numeral 1 of FIG. 1 (a). FIG. 2 is a bottom cross-sectional view of the building according to the application of the present invention.

As shown in FIG. 1 (a) or FIG. 1 (b), the material of the sheet used at the upper and lower ends of the triple-crosslinked crosslinked expanded polyethylene sheet is a high density crosslinked foamed polyethylene sheet 3, 7 mm, a thermal conductivity of 0.030 to 0.038 kPa / m · hr · 캜, a density of 0.050 to 0.125 g / cm 3, and an expansion ratio of 8 to 20 times. This provides a physical property that is easy to construct due to its comparatively hard and rigid properties.

The low density crosslinked polyethylene sheet 4 used in the central portion has a thickness of 5 to 10 mm, a thermal conductivity of 0.028 to 0.032 kPa / m · hr · 캜, a density of 0.025 to 0.050 g / cm 3, an expansion ratio of 20 To 40 times magnification. As compared with the above-mentioned high-density crosslinked foamed polyethylene sheet, the heat-insulating and sound-absorbing characteristics are excellent due to the characteristics of the cell structure. Particularly, as shown in FIG. 1 (c), the cylindrical punched body formed at regular intervals forms a large amount of open cells Thereby providing excellent absorption / sound absorption and impact absorption.

The aluminum foil 2 additionally thermally adhered to the upper part serves as a heat reflecting plate and effectively blocks the heat loss in the direct downward direction of the upper heating source (heating facility).

FIG. 2 is a bottom sectional view of the above-described foamed polyethylene insulation sound absorbing and shock absorber according to an embodiment of the present invention. As shown in the drawing, a sheet made of a flat plate of a predetermined standard is placed on a slab, , A zone for blocking or absorbing noise and thermal transmission is formed, a lightweight foamed concrete is placed thereon to form a plurality of heat insulating and sound absorbing layers, and a heating pipe, a finish mortar and a bottom finishing material are sequentially applied.

As described above, according to the present invention, due to the physical properties such as light weight, flexibility, chemical resistance, abrasion resistance and rigidity, which are characteristic of the foamed polyethylene sheet as the main material, they are more advantageous in construction and durability than conventional foamed styropoles, It is possible to use. Also, in the past, a method of forming a heat insulation layer of lightweight foam concrete or foamed styrofoam on a slab, heating piping on the insulation layer, and finally finishing with mortar has been used. However, in the case of a building having a reinforced concrete structure, It is advantageous for blocking air noise, but vibration energy tends to be transmitted more easily. Therefore, by using the characteristics of the present invention, a structure for separating the slab and the upper end structure of the slab into separate independent states is provided, thereby providing a buffer zone for minimizing the transmission process of heat, noise, and vibration.

Claims (1)

(The expansion ratio is 8 to 20) and the material of the center portion has a density of 0.025 to 0.050 g / cm < 3 > And a cylindrical pervious material having a diameter of 2.5 to 20 mm at a predetermined interval is formed on the sheet used in the central portion. Sound absorbing and shock absorbers for polyethylene insulation.