CN211641247U

CN211641247U - High flame retardant barrier composite film suitable for vacuum heat insulation plate

Info

Publication number: CN211641247U
Application number: CN201922452674.6U
Authority: CN
Inventors: 刘子腾; 陈心茹
Original assignee: Zhongke Yishuo Xiamen Fire Protection Technology Service Co ltd
Current assignee: Zhongke Yishuo Xiamen Fire Protection Technology Service Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-09
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a high flame retardant separation complex film suitable for vacuum insulation board relates to flame retardant separation material field. The composite film comprises a heat sealing layer, a first bonding layer, a nylon layer, a second bonding layer, an EVOH layer, a first flame-retardant layer, a third bonding layer, a glass fiber layer, a fourth bonding layer, a PET (polyethylene terephthalate) layer, a silicon dioxide evaporation layer, a printing layer, a second flame-retardant layer and an abrasion-resistant hardened layer which are arranged from inside to outside in sequence. The utility model provides a complex film has excellent flame retardant property and separation performance, and has exquisite stamp pattern and excellent wear resistance.

Description

High flame retardant barrier composite film suitable for vacuum heat insulation plate

Technical Field

The utility model relates to a fire-retardant separation material field particularly, relates to a high fire-retardant separation complex film suitable for vacuum insulation board.

Background

A vacuum insulation panel (VIP panel) is one of the vacuum insulation material field, is formed by compounding a filling core material and a vacuum protection surface layer, has excellent heat insulation performance, is a revolutionary development of heat insulation materials, and relates to household appliances, building heat insulation, industrial heat insulation and the like in the application field.

The vacuum heat insulation plate is formed by compounding a filling heat insulation core material and a barrier film. It needs to be vacuumized to form a vacuum state in the thermal insulation board, thereby effectively avoiding air convection. The vacuum state is the best way to block heat transfer, so the vacuum insulation panel can greatly reduce the thermal conductivity. The barrier property of the barrier film is particularly important in order to maintain the vacuum state inside the insulation panel, and thus the barrier film of the vacuum insulation panel is required to have excellent barrier property and also good puncture resistance and weather resistance. When the flame retardant is applied to the field of construction, the flame retardant is also required to have good flame retardant performance so as to improve the use safety of the material. In the prior art, when the vacuum heat insulation plate is applied to an outer wall of a building as a heat insulation material, a ceramic tile needs to be pasted on the outer layer of the vacuum heat insulation plate for the beauty of the building, and the pasting performance between the ceramic tile and the heat insulation plate is poor, so that the vacuum heat insulation plate is easy to fall off after a long time, and therefore the vacuum heat insulation plate has great potential safety hazards in use.

However, the prior art does not consider the flame retardant performance and the adhesion performance with ceramic tiles required by the application of the vacuum insulation panel to the exterior wall of a building. Therefore, there is a need to develop a barrier composite film having excellent flame retardant properties and no potential safety hazard due to the attachment of the barrier composite film to a tile.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high fire-retardant separation complex film suitable for vacuum insulation board, it has excellent fire-retardant and separation performance, can also customize the stamp pattern according to the condition, consequently is used in the building outer wall and can avoids laminating the ceramic tile, can improve the safety in utilization performance and the efficiency of construction of product effectively.

In order to solve the technical problem, the utility model provides a high fire-retardant separation complex film suitable for vacuum insulation board, include from inside to outside and set gradually heat-seal layer, first bond line, nylon layer, second bond line, EVOH layer, first fire-retardant layer, third bond line, glass fiber layer, fourth bond line, PET layer, silica evaporation coating, stamp layer, the fire-retardant layer of second and wear-resisting sclerosis layer.

As further optimization, the first flame-retardant layer is a polyurea flame-retardant coating layer, and the thickness of the first flame-retardant layer is 5-10 mu m.

As further optimization, the second flame-retardant layer is a transparent flame-retardant coating layer, and the thickness of the second flame-retardant layer is 5-10 mu m.

Preferably, the thickness of the heat-sealing layer is 50-90 microns, the thickness of the nylon layer is 15-30 microns, the thickness of the EVOH layer is 15-30 microns, the thickness of the glass fiber layer is 50-80 microns, the thickness of the PET layer is 12-50 microns, the thickness of the silicon dioxide evaporation layer is 1-5 microns, the thickness of the printing layer is 1-5 microns, and the thickness of the wear-resistant hardened layer is 5-10 microns.

Preferably, the thicknesses of the first bonding layer, the second bonding layer, the third bonding layer and the fourth bonding layer are all 1-3 μm.

By adopting the technical scheme, the utility model discloses can gain following technological effect:

the utility model provides a high flame retardant separation complex film suitable for vacuum insulation board possesses good fire behaviour, and need not the outside ceramic tile of laminating again, just can reach pleasing to the eye effect. This is because the utility model provides a first fire-retardant layer and the fire-retardant layer of second in the complex film can show the fire behaviour who improves the complex film, and the stamp layer wherein can customize different stamp patterns according to actual need to there is wear-resisting sclerosis layer to provide the protection in the outermost of complex film, consequently the utility model provides a complex film has graceful outward appearance simultaneously concurrently, and possesses safe and reliable's durability, especially when using it in the building outer wall, need not to laminate the ceramic tile in addition again, has reduced the potential safety hazard.

In addition, the utility model provides a complex film still possesses high barrier property and puncture resistance, and the nylon layer, EVOH layer and the silica evaporation layer that it possessed can provide excellent barrier property for the complex film, and nylon layer, glass fiber layer and PET layer then can provide excellent mechanical properties and puncture resistance for the complex film.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a high flame retardant barrier composite film suitable for a vacuum insulation panel according to the present invention.

The labels in the figure are: 1-heat-sealing layer; 2-a first adhesive layer; 3-a nylon layer; 4-a second adhesive layer; 5-EVOH layer; 6-a first flame retardant layer; 7-a third adhesive layer; 8-a glass fiber layer; 9-a fourth adhesive layer; 10-a PET layer; 11-silicon dioxide vapor deposition; 12-a printing layer; 13-a second flame retardant layer; 14-abrasion resistant hardened layer.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Examples

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

shown by figure 1, the utility model provides a high fire-retardant separation complex film suitable for vacuum insulation board, include from inside to outside and set gradually heat-seal layer 1, first bond line 2, nylon layer 3, second bond line 4, EVOH layer 5, first fire-retardant layer 6, third bond line 7, glass fiber layer 8, fourth bond line 9, PET layer 10, silica evaporation coating 11, stamp layer 12, the fire-retardant layer 13 of second and wear-resisting sclerosis layer 14.

Specifically, in the present embodiment, the heat seal layer 1 is used to seal and fill the heat insulation core material, and the polyethylene heat seal layer 1 may be used, but is not limited thereto. The nylon layer 3 has strong toughness, tensile strength, elongation and wear resistance, good physical and mechanical properties, and increases the barrier property and puncture resistance of the composite film. The EVOH layer 5 has excellent gas and water vapor transmission barrier performance and oil corrosion resistance and fragrance retention characteristics, and can improve the gas barrier performance of the composite film. The glass fiber layer 8 is high in temperature resistance, non-combustible, good in corrosion resistance, good in heat insulation and sound insulation, high in tensile strength and good in electrical insulation, and can improve the barrier property of the composite film. The PET layer 10 has excellent creep resistance, fatigue resistance, abrasion resistance, high hardness and little influence by temperature, and can provide excellent mechanical properties and puncture resistance for the composite film. The silicon dioxide is inactive, so that the silicon dioxide has strong corrosion resistance and excellent thermal resistance, and can increase the barrier property of the composite film. The flame-retardant properties of the first flame-retardant layer 6 and the second flame-retardant layer 13 in the composite film can significantly improve the flame-retardant property of the composite film, so that the vacuum partition plate can be better applied to the field of buildings. Furthermore, the stamp layer 12 of complex film can customize different stamp patterns according to actual need to there is wear-resisting sclerosis layer 14 to provide the protection in the outermost of complex film, consequently the utility model provides a complex film has concurrently and has graceful outward appearance simultaneously, and possesses safe and reliable's durability, especially when using it at the building outer wall, need not to laminate the ceramic tile in addition again, has reduced the potential safety hazard. The abrasion-resistant hardened layer 14 may be a silicone glass resin layer, which is hard and transparent, and not only can show the patterns of the printed layer 12, but also has good abrasion resistance and water resistance, and can better protect the printed layer 12, but the material is not limited thereto. It should be noted that the second flame retardant layer 13 and the wear-resistant hardened layer 14 do not need to be made of transparent materials, and as long as the two layer structures are arranged in accordance with the pattern shape of the printed layer 12, the image of the printed layer 12 can be highlighted, and the aesthetic effect can be achieved as well. The first bonding layer 2, the second bonding layer 4, the third bonding layer 7 and the fourth bonding layer 9 are used for enhancing the connection strength among the layer structures of the composite film, and avoiding the peeling between the layers to influence the quality and performance of the composite film. The materials of the first adhesive layer 2, the second adhesive layer 4, the third adhesive layer 7 and the fourth adhesive layer 9 may be polyolefin series resin, ethylene-vinyl acetate copolymer resin or ethylene-methyl methacrylate copolymer, but are not limited thereto.

Preferably, in a preferred embodiment of the present invention, the first flame-retardant layer 6 is a polyurea flame-retardant coating layer with a thickness of 5 to 10 μm. The polyurea coating has acid and alkali resistance, heat resistance and high flame retardance, so that the flame retardance of the composite film is improved, and the flame retardance can be further enhanced due to the thickness of the polyurea coating.

Preferably, in another preferred embodiment of the present invention, the second flame retardant layer 13 is a transparent flame retardant coating layer, and the thickness thereof is 5 to 10 μm. The transparent flame-retardant coating layer has the transparent performance, can permeate out the patterns on the printed layer 12, and has the flame-retardant performance which can also increase the flame-retardant property of the composite film. The transparent flame-retardant coating layer can be a zinc borate coating layer, but is not limited to the zinc borate coating layer, and the transparent flame-retardant coating layer can be formed only by meeting the requirements of transparent property and flame-retardant property of the material.

For further optimization, the thickness of the heat-sealing layer 1 is 50-90 microns, the thickness of the nylon layer 3 is 15-30 microns, the thickness of the EVOH layer 5 is 15-30 microns, the thickness of the glass fiber layer 8 is 50-80 microns, the thickness of the PET layer 10 is 12-50 microns, the thickness of the silicon dioxide evaporation layer 11 is 1-5 microns, the thickness of the printing layer 12 is 1-5 microns, and the thickness of the wear-resistant hardened layer 14 is 5-10 microns. By setting the appropriate thickness of each layer structure, each layer structure can play a role in flame retardance and barrier.

More preferably, in a preferred embodiment of the present invention, the thickness of the heat-sealing layer 1 is 65 to 85 μm, the thickness of the nylon layer 3 is 20 to 25 μm, the thickness of the EVOH layer 5 is 23 to 28 μm, the thickness of the glass fiber layer 8 is 55 to 75 μm, the thickness of the PET layer 10 is 16 to 35 μm, the thickness of the silicon dioxide evaporation layer 11 is 1.5 to 3.5 μm, the thickness of the printing layer 12 is 2 to 5 μm, and the thickness of the wear-resistant hardened layer 14 is 6 to 9 μm. The thickness of each layer structure is set according to the parameters, and the prepared composite film has better flame-retardant barrier property.

As further optimization, the thicknesses of the first bonding layer 2, the second bonding layer 4, the third bonding layer 7 and the fourth bonding layer 9 are all 1-3 mu m, so that the connection strength among all layer structures of the composite film is ensured.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high fire-retardant separation complex film suitable for vacuum insulation board which characterized in that includes from inside to outside sets gradually heat-seal layer, first bond line, nylon layer, second bond line, EVOH layer, first fire-retardant layer, third bond line, glass fiber layer, fourth bond line, PET layer, silica evaporation coating, stamp layer, the fire-retardant layer of second and wear-resisting sclerosis layer.

2. The high-flame-retardant barrier composite film suitable for the vacuum insulation panel according to claim 1, wherein the first flame-retardant layer is a polyurea flame-retardant coating layer with a thickness of 5-10 μm.

3. The high flame retardant barrier composite film suitable for the vacuum insulation panel according to claim 1, wherein the second flame retardant layer is a transparent flame retardant coating layer, and the thickness of the transparent flame retardant coating layer is 5-10 μm.

4. The high flame retardant barrier composite film suitable for the vacuum insulation panel according to claim 1, wherein the thickness of the heat sealing layer is 50-90 μm, the thickness of the nylon layer is 15-30 μm, the thickness of the EVOH layer is 15-30 μm, the thickness of the glass fiber layer is 50-80 μm, the thickness of the PET layer is 12-50 μm, the thickness of the silica vapor deposition layer is 1-5 μm, the thickness of the printing layer is 1-5 μm, and the thickness of the wear-resistant hardened layer is 5-10 μm.

5. The high flame retardant barrier composite film suitable for the vacuum insulation panel according to claim 1, wherein the thickness of the first adhesive layer, the second adhesive layer, the third adhesive layer and the fourth adhesive layer is 1-3 μm.