JP2003027656A - Heat-insulating panel formed of expanded resin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat-insulating panel formed of an expanded resin, which can alleviate the load on workers during construction and the load on building after the construction, contributes to reduction in manufacturing cost, is improved in chemical attack performance to ammonia, etc., can prevent tearing damages caused by rodents, and is improved in impact resistance and bending strength. SOLUTION: The heat-insulating panel formed of the expanded resin is obtained by laminating a metallic sheet 2 on one surface of a hard heat- insulating material 1 formed of the expanded resin, and a surface material 3 on the other surface of the same. The surface material 3 is formed of a soft material of a multilayered structure, and an outermost layer of the surface material is formed of PET 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foamed resin heat insulation panel in which a metal plate is laminated on one surface of a foamed resin hard heat insulation material and a surface material is laminated on the other surface.

[0002]

2. Description of the Related Art A foamed resin heat insulating panel of this type constitutes a roofing material and a wall material for agricultural and livestock buildings, warehouses, etc., and has high heat insulating properties.

Conventionally, in the above foamed resin heat insulation panel,
The surface material was formed of a soft material having a multi-layer structure, and the outermost layer was formed of a PE (polyethylene, the same applies hereinafter) layer.

[0004]

According to the above conventional structure, the surface material is formed of a soft material having a multi-layer structure, and
Since the outermost layer was formed of the PE layer, there were problems that the rat was damaged and that the impact resistance and bending strength were relatively weak.

In order to solve these problems, a foamed resin heat insulation panel in which metal plates are laminated on both surfaces of a foamed resin hard heat insulation material has been proposed.

However, since this foamed resin heat insulation panel becomes heavy, the burden on the operator at the time of construction and the burden on the building after construction becomes large, and the production cost becomes high.

Further, in this type of foamed resin heat insulating panel, the metal plate is often made of a galvalume steel plate, but since the galvalume steel plate lacks ammonia resistance, it is applied to both faces of the foamed resin hard heat insulating material. When the Galvalume steel sheets are laminated, there is a problem that the Galvalume steel sheet located inside the building is discolored by ammonia.

The present invention has been made in view of the above circumstances, and an object thereof is to reduce the burden on the operator during construction and the burden on the building after construction, reduce the manufacturing cost, and reduce ammonia and the like. It is an object to provide a foamed resin heat insulation panel that has a structure capable of improving chemical attack properties, yet can prevent damage to rats, and can improve impact resistance and bending strength.

[0009]

The constitution, operation and effect of the invention according to claim 1 are as follows.

[Structure] In the foamed resin heat insulation panel described at the beginning, the surface material is formed of a soft material having a multi-layer structure, and the outermost layer is formed of PET.

[Operation] Since the surface material is made of a soft material having a multi-layer structure, it is possible to avoid weighting and to make it inexpensive as compared with the case where it is made of a metal plate such as a galvalume steel plate. . And the outermost layer is PET
Since it is formed of (polyethylene terephthalate, the same applies hereinafter), it is possible to improve bending strength, pressure resistance, abrasion resistance, and ammonia resistance.

[0012] Further, PET is recycled daily, and recycled PET can be used.

[Effect] Therefore, the burden on the operator during construction and the burden on the building after construction can be reduced, the manufacturing cost can be reduced, and the chemical attack property of ammonia and the like can be improved. At the same time, it was possible to provide a foamed resin heat-insulating panel capable of preventing rat damage and improving impact resistance and bending strength.

The structure, action and effect of the invention according to claim 2 are as follows.

[Structure] In the structure of the invention according to claim 1, the thickness of the PET layer is set to 50 to 200 µm.

[Operation] In addition to the same operation as the operation according to the first aspect, the following operation can be performed.

If the thickness of the PET layer is less than 50 μm, it is difficult to increase the strength and abrasion resistance. However, according to the structure of claim 2, since the thickness of the PET layer is 50 μm or more, the strength and abrasion resistance are increased. Wearability can be increased. Further, since the thickness of the PET layer is 200 μm or less, it becomes easy to control the surface material at the time of manufacturing the foamed resin heat insulating panel having the above-mentioned structure, and the cost can be manufactured at low cost.

[Effect] Therefore, it becomes easy to obtain the same effect as the effect of the configuration of claim 1.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a vertical sectional view of a foamed resin heat insulating panel according to the present invention. In this foamed resin heat insulation panel, a corrugated (round wave) Galvalume steel plate 2 (corresponding to a metal plate) is formed on one surface of a foamed resin hard heat insulation material 1 such as hard urethane foam, and a surface material 3 is formed on the other surface. It is configured by stacking.

The galvalume steel plate 2 is a steel plate which is made of aluminum, zinc and silicon and which is alloy-plated with aluminum-zinc.

The surface material 3 is formed of a soft material having a multi-layer structure. As shown in FIG. 2, the PET layer 4, the PE layer 5, the aluminum foil layer 6 and the craft liner paper layer 7 are arranged in this order from the outside.
And a PE layer 8. The PET layer 4 has a thickness of 50 μm.
It is m-200 micrometers.

According to the above structure, the burden on the operator during construction and the burden on the building after construction can be reduced, the manufacturing cost can be reduced, and the chemical attack property of ammonia and the like can be improved. However, it is possible to prevent damage to the mouse and improve impact resistance and bending strength.

The inventor of the present invention has found that the foamed resin heat insulation panel having the above-mentioned structure and the conventional foamed resin heat insulation panel have bending strength, pressure resistance, shearing property, flammability, abrasion resistance, chemical attack resistance (ammonia resistance). Sex) test.

The heat insulating panel made of foamed resin of the conventional structure is different from the panel according to the present invention in that there is no PET layer, and other points have the same structure. That is, the surface material of the foamed resin heat insulation panel having the conventional structure is composed of the PE layer, the aluminum foil layer, the kraft liner paper layer, and the PE layer in this order from the outside.

[Bending Strength Test] 1) Test Method As shown in FIG. 3, a bending test (JIS K 72) with a span of 100 mm with the wave trough of the galvalume steel plate 2 at the center.
21) was carried out. The number of measurements is N = 5 for each. The pitch of the corrugations is 60 mm, and the height from the top of the corrugations to the bottom surface (surface of the surface material) is 30 mm.

2) The test results are shown in FIG. 4 (numerical values are average values). This test result shows that the foamed resin heat insulation panel according to the present invention (“PET surface material product” in FIG. 4) has a higher bending rigidity than the foamed resin heat insulation panel having the conventional configuration (“conventional product” in FIG. 4). Was confirmed to be 1.7 times (45/26).

[0028] The pressure resistance, shearing characteristics, flammability, wear resistance,
Description of chemical attack resistance (ammonia resistance) test method, etc. is omitted, but with respect to pressure resistance, proportional limit load improves by 15% compared to the conventional method, and shearing property improves by 48% compared to the conventional method with proportional limit load. However, in terms of wear resistance, the amount of wear is reduced to about half under any conditions, the melting point of PET is 140 ° C higher than that of the outermost layer of conventional products due to flammability, and PET is There was no change due to ammonia (the conventional PE swelled slightly and the galvalume steel sheet discolored).

[Another Embodiment] As shown in FIG. 5, the Galvalume steel plate 2 may have a square waveform. The metal plate is not limited to the galvalume steel plate 2,
It may be another metal plate.

[Brief description of drawings]

FIG. 1 is a perspective view showing a foamed resin heat insulating panel.

FIG. 2 is a sectional view showing a foamed resin heat insulating panel.

FIG. 3 is a diagram showing a test method.

FIG. 4 is a diagram showing test results.

FIG. 5 is a diagram showing another embodiment.

[Explanation of symbols]

1 Hard insulation made of foam resin 2 metal plate 3 surface materials

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) E04B 1/80 E04B 1/80 D E04C 2/26 E04C 2/26 V F term (reference) 2E001 DD01 FA03 FA16 FA26 GA15 GA42 HB01 HB04 HB07 HC08 HD03 2E162 CB01 CB02 CD02 EA11 EA18 4F100 AB01B AB03 AB10 AK04 AK42C AK51 BA03 BA04 BA05 BA10B BA10C DJ01A GB07 JJ02A JK04 JK09 JK13C JL01 YY00C

Claims (2)

[Claims] 1. A heat insulating panel made of a foamed resin, wherein a metal plate is laminated on one surface of a foamed resin hard heat insulating material, and a surface material is laminated on the other surface, wherein the surface material is a soft material having a multi-layer structure. And formed with
Foam resin insulation panel with outermost layer made of PET. 2. The PET layer has a thickness of 50 to 200 μm.
The heat insulating panel made of foamed resin according to claim 1, which is set to.