KR101830688B1 - Sandwich panel - Google Patents

Abstract

The present invention relates to a sandwich panel. More specifically, the sandwich panel includes a laminate panel. The laminate panel includes: adhesive layers formed on both surfaces of a resin foam body; non-flammable plates attached to the individual adhesive layers; and a polypropylene (PP) resin dispersed between the adhesive layers, non-flammable plates, and resin foam body. The laminate panel also has through-holes penetrating the adhesive layers, non-flammable plates, and resin foam body in a normal direction. The resin foam body includes a thermal insulation layer, laminate base layers, and impact buffering and protection layers. The laminate base layers coated on both surfaces of the thermal insulation layer are formed by laminating a heat-fusion layer, an aluminum thin-film layer, a nylon layer, a PP layer including another PP layer with vapor-deposited and coated alumina, and a low-density polyethylene layer from the inside of thermal insulation layer to the outside in the above-described order. The impact buffering and protection layers are arranged in a pair on the other surfaces of the laminate base layers and are formed by laminating a polyethylene layer, anchor coating layer, and glass fiber layer from the inside of the laminate base layers to the outside in the above-described order.

Description

Sandwich panel

The present invention relates to a sandwich panel, and more particularly, it relates to a sandwich panel, which enables easy construction of a front door, a window, a wall, and a roof of a building using sandwich panels, thereby improving durability of the entire building and improving work efficiency To the sandwich panel.

A sandwich panel is a special plywood made by stacking different kinds of materials in a sandwich shape and bonding them together with an adhesive. Generally, the type of panel can be classified according to the type, The surface plate is made of a material having high strength such as a plastic plate, an aluminum plate, a stainless steel plate and a metal plate, and the core material can be manufactured by inserting paper, wood, foam plastic, etc., considering heat insulation, soundproofing and strength.

This sandwich panel is one of the construction materials used as a space partition or an outer wall because it is applied to the wall in the construction period or the already constructed buildings and the application range is expanded due to the advantages such as simplicity of construction and shortening of the construction period .

For example, Korean Patent Application Publication No. 10-2006-0025247 (March 21, 2006) and Korean Patent Application No. 10-2007-0010317 (January 31, 2007) are cited as prior art documents related thereto.

An object of the present invention is to provide a heat insulating material layer, A laminate substrate layer; And a second laminate panel having the same layer structure as the first laminate panel by the resin foam including the impact protection layer.

According to an aspect of the present invention, there is provided a sandwich panel comprising: an adhesive layer formed on both sides of a resin foam; a non-flammable plate adhered to each of the adhesive layers; and an adhesive layer disposed between the adhesive layer, A laminated panel including a dispersed polypropylene resin and having a through hole penetrating the nonflammable plate, the adhesive layer and the resin foam in a normal direction; A first frame surrounding the edge of the through-hole; And a second frame coupled to an inner circumferential surface of the first frame to open and close an inner space of the first frame, wherein a first laminated panel is formed to be joined to the first frame extender, A first laminated panel is formed on a first frame connecting portion on an upper surface of a first laminated panel and a first overlapping portion is provided on a portion contacting the first laminated panel and a second laminated panel, A second laminated panel is formed on the second frame connecting portion on the lower surface of the first laminated panel, and a portion of the second laminated panel, which is in contact with the first laminated panel and the second laminated panel, Wherein the first laminated panel and the second laminated panel are stacked so as to overlap each other in opposite directions with reference to the first frame and the second frame, the resin foam comprising: a heat insulating material layer; A laminate substrate layer; And a shock-absorbing layer, wherein the laminate base layer applied on both sides with respect to the heat insulating material layer comprises: a heat-sealable layer in an outward direction inside the heat insulating material layer; Aluminum thin film layer; Nylon layer; A polypropylene (PP) layer containing a polypropylene layer on which alumina is vapor-deposited; And a low-density polyethylene layer; Wherein the impact protection layer is provided on the other side of the laminate base layer in a pair, the laminate base layer comprising: a polyethylene layer in the outward direction inside the laminate base layer; Anchor coating layer; And a glass fiber layer are stacked in this order.

Wherein the propylene resin is a polypropylene homopolymer or a copolymer of a polypropylene and an alpha olefin, wherein the alpha olefin is selected from the group consisting of 1-butene, 1-pentene, 1-hexene, 4- 1-octene, 1-nonene, 1-decene, 1-undecene and 1-dodecene, and a combination thereof. The propylene resin has a melt index of 0.1 to 5 g / 10 min Or 50% by weight or more of a non-crosslinked, melt-spun polypropylene resin having a weight average molecular weight of 300,000 g / mol or more and MWD (Molecular Weight Distribution) of 4 or more.

The heat-sealable layer and the aluminum thin film layer; An aluminum thin film layer and a nylon layer; A nylon layer and a polypropylene (PP) layer; And a polypropylene (PP) layer and a low-density polyethylene layer; And may further include an adhesive layer between each of the layers.

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Wherein the adhesive film or sheet is a polymer or compound containing a polar functional group in the main chain of the polyolefin.

The polar functional group may be one of a hydroxyl group, a carboxylic acid group, an acid anhydride group, an amino group, an epoxy group, an isocyanate group, an oxazoline group, a maleimide group, a phosphoric acid group, a phosphate ester group, a boric acid group, a boric acid ester group, Or more, and the foam may be used as a built-in board for building or an interlayer sound insulating material.

The anchor coating layer is formed of an isocyanate-based anchor coating agent and has a coating amount of 0.5 g / m ² to 1.5 g / m ² .

The polyethylene layer has an average thickness of 10 to 20 占 퐉, the anchor coating layer has an average thickness of 0.5 to 1.5 占 퐉, and the glass fiber layer may have an average thickness of 30 to 200 占 퐉.

Wherein the glass fiber layer comprises at least one selected from the group consisting of E-glass, C-glass and S-glass, and comprises 50 to 60% by weight of SiO ₂ , 10 to 20% by weight of Al ₂ O ₃ , ₂ O ₃ 8% to 10 wt%, MgO 1 wt.% to 2 wt%, MaO 20% to 24% by weight, Na ₂ O 0.1% by weight to 1% by weight, K ₂ O 0.1% by weight to 1% by weight 0.01 wt% to 0.5 wt% of TiO _{2, and} 0.01 wt% to 0.5 wt% of Fe ₂ O ₃ .

The heat-sealable layer may be formed of a material selected from the group consisting of linear low density polyethylene (LLDPE), low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene (PP), ethylene acrylic acid (EAA), ethylene methyl acrylate (EMA), ethylene methacrylic acid ), Ethylene methyl methacrylate (EMMA), ionomer (Ionomer, IO), and ethylene ethyl acrylate (EEA).

Wherein said linear low density polyethylene is metallocene linear low density polyethylene (m-LLEPE).

The polypropylene (PP) layer may have an average thickness of 8 탆 to 20 탆, and the nylon layer may have an average thickness of 15 탆 to 30 탆.

The aluminum thin film layer may include an aluminum evaporated film or an aluminum foil, and may have an average thickness of 6 탆 to 9 탆.

In the above-described aspects, the total thickness of the sandwich panel may be 140 탆 to 350 탆.

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As described above, according to the present invention, it is possible to manufacture and use a heat insulating material for building using high-tensile strength polypropylene, and it is a material that is economical in cost part compared to an inorganic heat insulating material and superior in field workability and material flexibility can do.

In addition, compared with other organic insulation materials except for polypropylene, it is chemically stable and provides harmless gases and other harmful elements. In case of fire, it can provide eco-friendly materials which can be recycled without generating harmful gas such as dioxin .

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1 is a sectional view showing a sandwich panel according to an embodiment of the present invention.
2 is a cross-sectional view illustrating in detail a laminated structure of a sandwich panel according to an embodiment of the present invention.
3 is a perspective view illustrating a sandwich panel according to an embodiment of the present invention.
5 is a configuration diagram illustrating a configuration of a sandwich panel according to an embodiment of the present invention.
FIG. 6 is an exemplary view showing a state of engagement of a sandwich panel according to an embodiment of the present invention.
7 is a cross-sectional view showing a construction state of a sandwich panel according to an embodiment of the present invention.
8 is a cross-sectional view illustrating a laminated structure of a frame of a sandwich panel according to an embodiment of the present invention.

The details of other embodiments are included in the detailed description and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described below, but may be embodied in various forms. In the following description, it is assumed that a part is connected to another part, But also includes a case in which other media are connected to each other in the middle. In the drawings, parts not relating to the present invention are omitted for clarity of description, and like parts are denoted by the same reference numerals throughout the specification.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

The sandwich panel 1000 to be described in the present invention may also be referred to as a laminated panel.

FIG. 1 is a cross-sectional view illustrating a sandwich panel according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view illustrating a lamination structure of a sandwich panel according to an embodiment of the present invention.

1 and 2 according to an embodiment of the present invention, a sandwich panel 1000 includes an adhesive layer 400 formed on both sides of a resin foam 600 and a non-flammable A plate material 500 and a polypropylene resin dispersed between the adhesive layer 400 and the nonflammable plate material 500 and the resin foam material 600.

Wherein the polypropylene resin is a polypropylene homopolymer or a copolymer of a polypropylene and an alpha olefin, wherein the alpha olefin is selected from the group consisting of 1-butene, 1-pentene, 1-hexene, 4- 1-octene, 1-nonene, 1-decene, 1-undecene and 1-dodecene, and a combination thereof, wherein the polypropylene resin has a melt index of 0.1 to 5 g / 10 min or a weight average molecular weight of 300,000 g / mol or more, and MWD (Molecular Weight Distribution) of 4 or more, and 50 wt% or more of the nonwoven fabric melt tension polypropylene resin.

The resin foam 600 includes a heat insulating material layer 100; A laminate substrate layer (200); And the impact protection layer 300. The laminate substrate layer 200 coated on both sides with respect to the heat insulating material layer 100 is formed on the heat insulating layer 210 in the outward direction inside the heat insulating material layer 100, ; An aluminum thin film layer (Al thin film layer, 220); A nylon layer (NY layer, 230); A polypropylene (PP) layer (VM-PP layer) 240 containing a polypropylene layer vapor-coated with alumina; And a low-density polyethylene layer (LDPE layer) 250; May be stacked in this order.

Further, the heat-sealable layer and the aluminum thin film layer; An aluminum thin film layer and a nylon layer; A nylon layer and a polypropylene (PP) layer; And a polypropylene (PP) layer and a low-density polyethylene layer; And may further include an adhesive layer between each of the layers.

The foaming magnification of the foam is 20 times or more, and the protective plate may be adhered to the foam by an adhesive film or a sheet by heat-sealing. The protective plate may be thermally fused to the foaming material by an adhesive film or sheet Lt; / RTI >

The adhesive film or sheet is a polymer or a compound containing a polar functional group in the main chain of the polyolefin, and the polar functional group is a hydroxyl group, a carboxylic acid group, an acid anhydride group, an amino group, an epoxy group, an isocyanate group, A phosphoric acid group, a phosphoric acid ester group, a boric acid group, a boric acid ester group, and a thiaran group, and the foam may be used as a building board or an interlayer sound insulating material.

In the sandwich panel of the present invention, the portions laminated in the order of the heat-sealable layer -Al thin film layer -NY layer -PP layer -LDPE layer excluding the impact protection layer 300 are referred to as lamination substrate 200 or laminate substrate layer 200 Can be expressed.

Each layer of the sandwich panel of the present invention is more specifically a heat-sealable layer and an Al thin film layer; An Al thin film layer and an NY layer; NY layer and PP layer; Each layer of the PP layer and the LDPE layer can be adhered (or bonded) by a method commonly used in the art, and each layer is adhered with an adhesive using a dry lamination method to produce a lamination substrate layer The adhesive used for bonding each layer can be a general adhesive used in the related art, but it is preferable to use a polyester urethane adhesive in consideration of the characteristics of the materials in each layer.

The adhesive layer formed of the adhesive is preferably formed to have an average thickness of 2.5 to 5 μm, preferably an average thickness of 3.5 to 4.5 μm. When the thickness of the adhesive layer is less than 2.5 μm, If it is more than 5.0 탆, it is disadvantageous from the viewpoint of thinning, and there is a problem that economical efficiency is deteriorated because the adhesive is used excessively.

Among the sandwich panels of the present invention, the heat insulating material layer 100 is generally divided into inorganic and organic insulating materials in the case of heat insulating and insulating material. The inorganic insulation materials include artificial mineral fibers such as asbestos (ceramic fire), glass wool, and mineral wool. In addition, there are pearlite plates, calcium silicate plates and lightweight bubble cone creep. It is excellent in insulation performance and nonflammability compared to organic insulation, but it lacks on-site workability and material flexibility, and its use is limited due to low cost competitiveness including condensation. Especially, the problem of environmental pollution as well as concern about health, such as contact with human skin, inhalation, ingestion, etc., has been continuously raised. In addition to proper measures for workers, attention should be paid to post-closing process. On the other hand, organic insulation materials are generally called 'Styrofoam', foamed polystyrene, foamed polyurethane, foamed PVC, and other plastic insulation materials. They are generally inexpensive and have excellent construction performance. However, There are disadvantages such as fire. Especially, foamed polystyrenes can easily catch fire and generate dioxins when they are burned. In the case of foamed polyurethane, combustible steam is generated during the process of foaming in the workplace and it always contains the risk of fire. In burning, carbon monoxide, hydrogen cyanide, isocyanate, Benzene and other toxic gases are generated. In the case of blown polyvinyl chloride, toxic gases such as carbon monoxide, hydrogen cyanide, hydrogen chloride, and sulfur dioxide are generated during combustion.

Thus, the heat insulating material layer of the present invention can use styrofoam in the glass wool and the organic insulating material layer of the inorganic heat insulating material layer, but it is used by supplementing the above-mentioned problem, and the non-crosslinked hot melt polypropylene .

The nonwrinkable melt tension polypropylene is used in an amount of 50 wt% or more, preferably 99 wt% or more based on the total weight of the polypropylene resin, 0.5 wt% to 5 wt% of a nucleating agent, 0.5 wt% to 5 wt% May be added to prepare a foam.

The non-crosslinked melt tension polypropylene used herein is a propylene homopolymer or a propylene homopolymer having a melt index of 0.1 g / 10 min to 5 g / 10 min or a weight average molecular weight of 300,000 g / mol or more and an MWD of 4 or more, -Olefin monomers of up to 10 mol%.

An adhesive film or sheet is used for bonding the resin foam and the non-flammable plate (Fe, Al material, etc.), and the adhesive film or sheet is made of various materials such as a hydroxyl group, a carboxylic acid group, And at least one of polar functional groups such as anhydride, amino, epoxy, isocyanate, oxazoline, maleimide, phosphate, phosphate ester, borate, use. However, the polyolefin having such a polar functional group is not limited to the above.

The main chain may be a polymer produced from an alkene, or a mono-olefin base, such as a polyolefin, CnH ₂ n. Representative examples include polypropylene produced by polymerization of olefin ethylene and olefin propylene.

The impact protection layer 300 of the sandwich panel of the present invention is provided on the other surface of the laminate substrate layer 200 and includes a polyethylene layer 260 in the outward direction inside the laminate substrate layer 200; Anchor coating layer 270; And the glass fiber layer 280 may be stacked in this order.

In the impact protection layer 300, the polyethylene (PE) layer 260 serves to connect the glass fiber layer 280 and the LDPE layer (or preferably, the LLDPE layer 250) The LDPE layer (or the LLDPE layer) 250 is laminated on the PP layer 240 and the PE layer 240 is laminated on the PP layer 240 because the glass fiber layer 280 and the PP layer 240 are extruded and laminated. (260). The PE layer 260 may also be formed by coating a polyethylene resin between the anchor coating layer 270 (or adhesive layer) formed on one side of the glass fiber and the LDPE layer 250 formed on the top of the laminating base layer 200 Or insertion). There is no separate adhesive layer between the PE layer 260 of the impact protection layer 300 and the laminating base layer 200 and the PE layer 260 and the laminate base layer 200 are laminated with the LDPE layer 250 The impact protection layer 300 and the LDPE layer 250 can be bonded (or bonded) by direct bonding.

The average thickness of the PE layer 260 is preferably 5 占 퐉 to 40 占 퐉, more preferably 10 占 퐉 to 30 占 퐉, and still more preferably 10 占 퐉 to 20 占 퐉. At this time, if the average thickness of the PE layer is less than 10 占 퐉 , The extrusion processability is poor and the adhesive strength is low. When the thickness exceeds 40 m, the thickness becomes too thick, which makes it difficult to thin the panel. Therefore, it is preferable to form the thickness within the above range.

An anchor coating layer 270 (or an adhesive layer) is formed therebetween in order to bond the PE layer 260 and the glass fiber layer 280 of the impact protection layer 300 of the present invention with an anchor coating layer 270 Layer is an anchor coating agent (AC coating agent) coated on one side of the glass fiber layer, and unlike the other method of interlayer bonding the sandwich panel of the present invention, the reason for introducing the anchor coating layer is that the PE layer The polyethylene (PE) resin used in the formation of the anchor coating layer 270 is inactive and has no polarity, so that the adhesion to the glass fiber layer 280 may be deteriorated, It is advantageous to cause adhesion. The reason for introducing the anchor coating layer 270 in the present invention is that the adhesiveness between the glass fiber layer 280 and the LDPE layer 250 or the PE layer 260 is very low, (Or bonding) of the substrate 300.

The anchor coating layer 270 of the present invention is formed of an isocyanate anchor coating agent and has a coating amount of 0.5 g / m ² to 1.5 g / m ^2. The anchor coating layer (or adhesive layer) has an average thickness of 0.3 to 2.0 μm And preferably an average thickness of 0.5 탆 to 1.5 탆. If the average thickness of the anchor coating layer (adhesive layer) is less than 0.3 占 퐉, the adhesion between the PP layer and the glass fiber layer may deteriorate, and there may be a problem that a part of the glass fiber layer falls due to an external impact or the like. The use of the adhesive is excessive, which may be economically disadvantageous. Therefore, it is preferable to form the anchor coating layer (or the adhesive layer) within the above range.

The anchor coating agent may be at least one anchor coating agent selected from the group consisting of titanate, polyimine, butadiene, and isocyanate. Preferably, the anchor coating agent is an isocyanate anchor coating agent. Can be advantageous in terms of adhesive strength, heat resistance, water resistance, boilability and oil resistance.

In the impact protection layer 300 of the present invention, the glass fiber layer 280 may be made of general glass fibers, but preferably at least one selected from E-glass, C-glass, and S- It is preferable to use glass fibers, more preferably E-glass glass fibers.

The glass fiber layer may include 50 to 60% by weight of SiO ₂ , 10 to 20% by weight of Al ₂ O ₃ , 8 to 10% by weight of B ₂ O ₃ , 1 to 2% by weight of MgO,

20 wt% to 24 wt%, Na ₂ O 0.1 wt% to 1 wt%, K ₂ O 0.1 wt% to 1 wt%, TiO ₂ 0.01 wt% to 0.5 wt%, and Fe ₂ O ₃ 0.01 wt% to 0.5 wt% the glass fiber containing%, preferably SiO ₂ 52% to 58% by weight, Al ₂ O ₃ 10 to 18% by weight, B ₂ O ₃ 8% to 9% by weight, MgO 1 wt.% to 2% by weight, MaO 20% to 23% by weight, Na ₂ O 0.5% by weight to 1% by weight, K ₂ O 0.5 wt% to 1 wt%, TiO ₂ 0.01 wt% to 0.1 wt% of Fe ₂ O ₃ 0.01 It is preferable to use glass fibers containing 0.1% by weight to 0.1% by weight.

In addition, the glass fiber used in the glass fiber layer is not particularly limited in its woven form, but may be plain, twilled, satin, leno plain or imocked (mock leno or imitation leno) is preferably used.

The glass fiber layer preferably has an average thickness of 30 to 200 占 퐉, preferably an average thickness of 30 to 120 占 퐉. If the glass fiber layer is less than 30 占 퐉, there may be a problem that the strength becomes weak. The sandwich panel may be too thick to have flexibility, and workability and workability may be deteriorated. Therefore, it is preferable that the sandwich panel has an average thickness within the above range.

In the sandwich panel of the present invention, the heat-sealable layer 210 serves to fix the sealing or heat insulating layer so as to prevent gas and moisture from penetrating into the sandwich panel with the heat insulating material layer (or the core material 100) (HDPE), polypropylene (PP), ethylene-acrylic acid (EAA), ethylene methyl acrylate (EMA), ethylenemethylacrylate (EMA) ), Ethylene-methylmethacrylic acid (EMAA), ethylene-methylmethacrylate (EMMA), ionomer (Ionomer), and ethylene ethyl acrylate (EEA) It is preferable to use at least one selected from LLDPE, LDPE and HDPE, more preferably LLDPE, even more preferably, It is good in terms of heat sealing properties, heat seal strength, low brittleness, transparency using a metallocene linear low density polyethylene (m-LLDPE), among the metallocene LLDPE.

The LLDPE preferably has a specific gravity of 0.92 or more, and preferably has a specific gravity of 0.92 to 0.95.

The heat-sealable layer 210 preferably has an average thickness of 25 to 60 占 퐉, preferably 30 to 50 占 퐉. When the heat-sealable layer is less than 25 占 퐉, the heat sealable layer 210 has a low heat- If it exceeds 60 탆, it is disadvantageous for thinning, and therefore, it is preferable that the thickness is within the above range.

The aluminum thin film layer 220 may be formed on one side of the heat-sealable layer 210, and the aluminum thin film layer 220 may have an average thickness of 4.5 탆 To 9 mu m, preferably an average thickness of 6 mu m to 9 mu m, more preferably 6 mu m to 7 mu m. At this time, if the aluminum thin film layer 220 is less than 4.5 mu m, there may be a problem that the gas and moisture barrier properties are lowered due to a large number of pinholes. If the aluminum thin film layer 220 is more than 9 mu m, the thermal conductivity may be high, It is preferable to form the aluminum thin film layer so as to have a thickness within the above range.

The nylon layer (NY layer 230) serves to impart gas barrier properties and flexibility, and the nylon layer may include nylon containing at least one selected from NY11, NY6, NY66 and NY610. And the average thickness of the NY layer is preferably 15 to 30 m, preferably 15 to 25 m. When the average thickness of the nylon layer is less than 15 m There may be a problem of high air permeability, and if it exceeds 30 탆, it may cause a problem of thinning. Therefore, it is preferable to form it with an average thickness within the above range.

In the sandwich panel structure of the present invention, the polypropylene layer (PP layer) 240 functions to impart mechanical strength and water barrier properties, and may be formed on one side of the NY layer 230. The PP layer may be formed of polypropylene (VM-PP) coated with alumina. Preferably, the use of VM-PP is advantageous in view of flexibility and crack occurrence.

The PP layer is preferably formed to have an average thickness of 8 to 20 占 퐉, preferably 10 to 12 占 퐉. If it is less than 8 占 퐉, there is a possibility that the strength is weak and the moisture permeability is lowered. If the thickness exceeds the above range, there is a problem in thinning.

In the present invention, the low density polyethylene layer (LDPE layer) 205 of the sandwich panel structure of the present invention has the function of easily bonding the laminate layer and the glass fiber in the present invention, and preferably, the low density polyethylene resin is a linear low density polyethylene (LLDPE ) The resin may be formed into a film or a sheet, and then formed on one side of the PP layer. The low-density polyethylene layer has an average thickness of 20 to 40 占 퐉, preferably 25 to 30 占 퐉, satisfying the adhesive property and advantageous in cost.

The total thickness of the laminate base layer 200 in the sandwich panel of the present invention is preferably 72 to 160 μm, preferably 80 to 140 μm. If the laminate base layer is less than 72 μm, , It may be disadvantageous to maintain the vacuum state. If it exceeds 160 탆, it may be disadvantageous for thinning. Therefore, it is preferable to have a thickness within the above range.

The total thickness of the sandwich panel including the laminate substrate and the impact protection layer is preferably 140 to 350 占 퐉, more preferably 150 to 300 占 퐉. At this time, if the total thickness of the sandwich panel is less than 140 占 퐉 If the total thickness of the sandwich panel exceeds 350 탆, the mechanical properties are excellent. However, since the flexibility of the sandwich panel is lowered, the folding workability and workability of the sandwich panel deteriorate. Therefore, It is preferable to fabricate a sandwich panel so as to have an average thickness within a predetermined range.

The aluminum thin film layer 210 of the present invention includes an aluminum evaporated film or an aluminum foil and has an average thickness of 6 to 9 占 퐉 and a total thickness of the sandwich panel of 140 to 350 占 퐉.

(PP) layer and a low-density polyethylene (LDPE) layer containing a VM-PP layer are laminated on the surface of a heat-sealable layer, an aluminum thin film layer (Al layer), a nylon layer Laminating in order by dry lamination to produce a laminating base layer; And forming an impact protection layer on the lamination base material layer by extrusion lamination in which a polyethylene resin is coated between the laminated base material layer and the glass fiber coated on one side of the AC coating material, The sandwich panel of the present invention can be manufactured.

Each layer of the laminating base layer may be formed by laminating by a dry lamination method. More specifically, aluminum on a roll constituting the lower layer is laminated on one side of the aluminum when passing between a coating roll with an adhesive and a press. After passing through a dry chamber, the lower and upper layers are laminated on the nip roll and the film constituting the upper layer to be laminated, and finally the lower layer and the lower layer are wound on the cooling roll through the cooling roll. A film in which the upper layer is laminated can be obtained. That is, the Al thin film is used as aluminum, and a film constituting the heat-sealable layer is processed to provide a film constituting the upper layer and a nip roll, and a film having the laminated thermally fusible layer-Al thin film layer is produced. Next, a film of the heat-sealable layer-Al thin film layer is provided in aluminum, and a NY film (or sheet) is provided at a place to provide a film and a nip roll constituting an upper layer to be laminated, -NY layer can be produced. This process is repeated to produce a laminate substrate (or substrate layer) in which a hot-melt adhesive layer-Al thin film layer -NY layer-PP layer-LDPE layer is laminated in order.

The sandwich panel of the present invention in which the impact protection layer and the laminating base layer are laminated can be produced by the extrusion lamination method. More specifically, when the glass fiber is fed from the paper feeding section, the glass fiber is pressed into the press and the anchor coating section The anchor coating agent is applied to one side of the glass fiber and passes through a dry chamber. Next, the glass fiber coated with the laminating base material and the anchor coating material supplied from the laminating base material supply part passes between the rubber roll and the cooling roll, and an impact protection layer is formed on the top of the laminating base material. At this time, (PE layer-anchor coating layer-glass fiber layer) is laminated by coating (or supplying) a PE resin between the laminating layer and the laminating base material (the heat-sealing layer-Al thin film layer -NY layer-PP layer- LDPE layer) The sandwich panel of the present invention can be manufactured through the winding part.

At this time, the coating of the polyethylene (PE) resin is preferably performed by extruding the polyethylene resin through an extruder at an extrusion temperature of 280 ° C. to 320 ° C., preferably 290 ° C. to 310 ° C. The extrusion temperature depends on the type of the polyethylene resin It is preferable to give a change in the extrusion temperature.

The vacuum insulation material can be manufactured by inserting a heat insulation material (or a core material) into the inside of the outer material using the above-described sandwich panel of the present invention, and a vacuum insulation material can be manufactured using the same. The various types of the above-mentioned vacuum insulator composite reinforced flame retardant outer cover material; And a getter material which can include at least one selected from the group consisting of glass fiber, polyurethane, polypropylene, and polyester, and a getter material attached to or inserted into the heat insulating material, .

The getter material mainly adsorbs residual gas molecules in the vacuum, forms a compound with the gas, and removes gas components flowing through the outer wall of the vacuum insulation material so as to maintain the heat insulation performance as a vacuum insulation material for a long period of time.

The vacuum insulation material of the present invention can be widely used not only as a vacuum insulation material for electronic appliances such as a refrigerator but also as a vacuum insulation material for construction.

The present invention also provides a method of manufacturing a composite outer sheath for a heat insulator comprising the above-described sandwich panel structure; And a heat insulating material containing at least one selected from glass fibers, glass wool, polyurethane, polypropylene and polyester.

In addition, it may further include a getter material attached to or inserted into the heat insulating material.

In the method for producing a composite outer covering material for a thermal insulation material of the present invention, the thermal insulation material is a dry thermal insulation layer material, a heat-sealable layer for heat insulation material, an aluminum thin film layer, a nylon layer, a polypropylene (PP) layer, and a linear low- lamination to produce a lamination substrate layer; And forming an impact protection layer on the lamination base material layer by extrusion lamination in which a polyethylene resin is coated between glass fibers coated on one side of the coating material of the laminating base layer and the anchor coating layer .

3 is a perspective view illustrating a sandwich panel according to an embodiment of the present invention.

3, according to one embodiment of the present invention, it is possible to easily construct an entrance door or a window of a building using the sandwich panel of the present invention, thereby improving the durability of the construction as a whole and the efficiency of the work And a frame for a sandwich panel structure.

A laminate panel in which a non-combustible plate 500, a bonding layer 400 and a resin foam 600 are formed in a laminate panel having a through-hole penetrating the resin foam 600 in a normal direction, and a first frame 10 surrounding the edge of the through-hole; And a sandwich panel building frame which is coupled to an inner circumferential surface of the first frame 10 to easily open and close a through hole located in an inner space of the first frame 10. [

And a second frame coupled to the inner circumferential surface of the first frame to open and close the inner space of the first frame and fixed to the second laminated panel side formed on the inner circumferential surface in the same layer structure as the first laminated panel, The first laminated panel 11 and the second laminated panel 21 are formed to have an asymmetric layer structure such that the heat insulating material layer is located on the first frame extending portion 12 and the second frame extending portion 22, . ≪ / RTI >

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Hereinafter, another embodiment of the present invention will be described with reference to Figs. 5 to 7. Fig. Except for the contents to be described later, the contents similar to those described in the embodiments described with reference to Figs. 1 to 4 will not be described in detail.

FIG. 5 is a view illustrating a configuration of a sandwich panel according to an exemplary embodiment of the present invention, FIG. 6 is an exemplary view illustrating a sandwich panel according to an exemplary embodiment of the present invention, FIG. Sectional view showing a construction state of a sandwich panel according to an embodiment of the present invention.

5 to 7 according to an embodiment of the present invention, an adhesive layer 400 formed on both surfaces of a resin foam, a non-flammable plate 500 attached to each of the adhesive layers 400, 400, a non-flammable plate 500 and a polypropylene resin dispersed between the resin foam and a through-hole is formed through the non-flammable plate 500, the adhesive layer 400 and the resin foam in the normal direction Laminated panel; A sound absorbing board 60 provided on both sides of the laminated panel; A first frame (10) surrounding the edge of the through-hole; And a second frame (20) coupled to an inner circumferential surface of the first frame to open and close an inner space of the first frame, wherein the laminated panel contains at least 1000 kg / m3 of vermiculite powder and the sound absorbing board And a plurality of sound-absorbing holes 61 are formed on the outer surface of the laminated panel, and both side surfaces of the four sides of the laminated panel are protruded from the sound-absorbing board, And a recessed portion 70 recessed from the sound absorbing board is formed on the other side of the convex portion 51. [

The convex portions 11 formed by protruding the main board 10 are inserted into the recessed portion 30 formed by the suction board 20 and integrally joined to each other

At this time, the sandwich panel is not burned due to the vermiculite powder, has excellent heat insulation property, and does not melt even in a high temperature in the case of fire, thereby maintaining the original state. ) At the same time as absorbing the noise and ensuring a lot of space to contain air, the insulation effect is also excellent.

In addition, in order to use the sandwich panel of the present invention alone for a wall or a building, it is preferable that the sound board 60, which is formed integrally with the main board 50 and the sound absorbing board 60, A reinforcing board 80 made of a flat plate having a density of vermiculite powder of 600 kg / m 3 to 650 kg / m 3 is bonded to a surface on which a plurality of sound-absorbing holes 51 are formed, and a non-combustible board 500 is integrally joined to the outer surface thereof It can be configured.

According to the present invention constructed as described above, it is possible to directly construct a wall for partitioning an indoor space, thereby providing a soundproof and heat insulation effect that is easy to construct, while blocking fire while acting as a firewall in a fire.

8 is a cross-sectional view illustrating a laminated structure of a frame of a sandwich panel according to an embodiment of the present invention.

Referring to FIG. 8 according to an embodiment of the present invention,

The resin foam includes a heat insulating material layer; A laminate substrate layer; And an impact protection layer,

A first frame disposed around the through-hole side on the cover and the first laminated panel side; And

And a second frame fixed to an inner circumferential surface of the first frame at a side of a second laminated panel formed in the same layer structure as the first laminated panel,

The first frame 10 has an inner circumferential surface formed with a first frame extension 12, one of which is protruded inward with respect to the center of the thickness, and the outer circumferential surface of the second frame is formed at one side A second frame extension portion 22 protruding outward is formed so that the first frame 10 and the second frame 20 come into contact with each other so as to cooperate with each other,

The first laminating panel 11 and the second laminating panel 21 each have an asymmetric layer structure so that the heat insulating material layer is located on the first frame extending portion 12 and the second frame extending portion 22 Forming.

The first laminating panel 11 and the second laminating panel 21 are stacked so as to overlap each other in the opposite directions with respect to the first frame 10 and the second frame 20. In this case, There is no gap in the heat insulating material layer 100, so that there is an effect of excellent insulation and heat insulation.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

10: first frame 11: first laminated panel
12: first frame extension part 13: first frame coupling part
14: first overlapping portion 20: second frame
21: second laminated panel 22: second frame extension part
23: second frame engaging portion 24: second overlapping portion
50: Motherboard
51: convex portion 60: sound absorption board
61: sound-absorbing hole 70:
80: reinforcement board 100: insulation layer
200: laminate base layer 210: thermally fusible layer
220: thin film layer 230: nylon layer
240: polypropylene (PP) layer 250: low density polyethylene layer
260: polyethylene layer 270: anchor coating layer
280: glass fiber layer 300: impact protection layer
400: adhesive layer 500: nonflammable sheet
1000: Sandwich panel (laminated panel)

Claims (20)

An adhesive layer formed on both sides of the resin foam, a non-flammable plate adhered to each of the adhesive layers, and a polypropylene resin dispersed between the adhesive layer, the non-flammable plate and the resin foam, A first lamination panel having a through-hole penetrating the foam in a normal direction; A second lamination panel formed and disposed in the same layer structure as the first lamination panel; A first frame disposed around the through-hole side on the cover and the first laminated panel side; A second frame disposed on the second laminated panel side; Wherein the first frame extension portion is formed with an inner circumferential surface of the first frame protruding inward with respect to a center of the thickness of the first frame, Wherein the first frame and the second frame are in contact with each other so as to cooperate with each other so that the first laminate panel and the second laminate panel are insulated from each other on the first frame extension portion and the second frame extension portion, Forming an asymmetric layer structure such that the layer is located; The resin foam includes a heat insulating material layer; A laminate substrate layer; And a shock-absorbing layer, the sandwich panel comprising:
Wherein the laminate base layer coated on both sides with respect to the heat insulating layer as the base of the resin foam comprises a heat-sealable layer in an outward direction inside the heat insulating material layer; Aluminum thin film layer; Nylon layer; A polypropylene (PP) layer containing a polypropylene layer on which alumina is vapor-deposited; And a low-density polyethylene layer; Respectively,
The impact protection layer being provided on the other side of the laminate base layer in a pair, the laminate base layer comprising: a polyethylene layer in an outward direction inside the laminate base layer; Anchor coating layer; And a glass fiber layer,
The polypropylene resin is a polypropylene homopolymer or a copolymer of polypropylene and an alpha olefin; The alpha olefins may be selected from the group consisting of 1-butene, 1-pentene, 1-hexene, 4-methyl-1-pentene, And a combination thereof; Wherein the polypropylene resin has a melt index of 0.1 to 5 g / 10 min or a weight average molecular weight of 300,000 g / mol or more and a meltblown melt tension polypropylene resin having MWD (Molecular Weight Distribution) of 4 or more in an amount of 50 wt% In addition,
Wherein the adhesive film or sheet is a polymer or compound containing a polar functional group in the main chain of the polyolefin,
The polar functional group may be one of a hydroxyl group, a carboxylic acid group, an acid anhydride group, an amino group, an epoxy group, an isocyanate group, an oxazoline group, a maleimide group, a phosphoric acid group, a phosphate ester group, a boric acid group, a boric acid ester group, ≪ / RTI >
The anchor coating layer is formed of an isocyanate-based anchor coating agent and has a coating amount of 0.5 g / m ² to 1.5 g / m ² ,
Wherein the nylon layer has an average thickness of 15 占 퐉 to 30 占 퐉 and the aluminum thin film layer includes an aluminum evaporated film or aluminum foil and has an average thickness of 6 占 퐉 to 9 占 퐉.
delete The method according to claim 1,
A heat fusion layer and an aluminum thin film layer; An aluminum thin film layer and a nylon layer; A nylon layer and a polypropylene (PP) layer; And a polypropylene (PP) layer and a low-density polyethylene layer; And a sandwich panel further comprising an adhesive layer between each of the layers.
delete delete delete delete The method according to claim 1,
The foam is a sandwich panel used as a building interior board or an interlayer sound insulating material.
delete The method according to claim 1,
Wherein the polyethylene layer has an average thickness of 10 to 20 占 퐉, the anchor coating layer has an average thickness of 0.5 to 1.5 占 퐉, and the glass fiber layer has an average thickness of 30 to 200 占 퐉.
The method according to claim 1,
Wherein the glass fiber layer comprises at least one selected from the group consisting of E-glass, C-glass and S-
50 to 60% by weight of SiO ₂ , 10 to 20% by weight of Al ₂ O ₃ , 8 to 10% by weight of B ₂ O ₃ , 1 to 2% by weight of MgO, 20 to 24% % Of Na ₂ O, 0.1 to 1 wt% of K ₂ O, 0.1 to 1 wt% of K ₂ O, 0.01 to 0.5 wt% of TiO _{2 and} 0.01 to 0.5 wt% of Fe ₂ O _3, .
The method according to claim 1,
The heat-sealable layer may be formed of a material selected from the group consisting of linear low density polyethylene (LLDPE), low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene (PP), ethylene acrylic acid (EAA), ethylene methyl acrylate (EMA), ethylene methacrylic acid ), Ethylene methyl methacrylate (EMMA), ionomer (Ionomer, IO) and ethylene ethyl acrylate (EEA).
13. The method of claim 12,
Wherein the linear low density polyethylene is a metallocene linear low density polyethylene (m-LLEPE) sandwich panel.
delete delete delete delete delete delete delete

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