CN216001727U - Puncture-resistant, weather-resistant, heat-preservation and heat-insulation composite film, heat-preservation box and heat-insulation layer - Google Patents
Puncture-resistant, weather-resistant, heat-preservation and heat-insulation composite film, heat-preservation box and heat-insulation layer Download PDFInfo
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- CN216001727U CN216001727U CN202121613883.5U CN202121613883U CN216001727U CN 216001727 U CN216001727 U CN 216001727U CN 202121613883 U CN202121613883 U CN 202121613883U CN 216001727 U CN216001727 U CN 216001727U
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Abstract
The utility model discloses an anti-puncture, weather-proof, heat-preservation and heat-insulation composite film, a heat-preservation box and a heat-insulation layer, which are sequentially arranged into a first barrier layer, a first bonding layer, a middle layer, a second bonding layer, a second barrier layer and a surface layer from inside to outside; wherein, first barrier layer is biaxial stretching polyester aluminizer, the intermediate level is the bubble chamber membrane, the second barrier layer is BOPA aluminizer, the top layer is resistant coating of waiting, first bonding layer and second bonding layer are two ingredient polyurethane glue coating. The puncture-resistant, weather-resistant, heat-preservation and heat-insulation composite film has excellent puncture resistance, and can prevent sharp objects from puncturing the composite film; meanwhile, the composite film has excellent weather resistance and can be used outdoors for a long time; and secondly, the composite film has excellent heat preservation and insulation performance, reduces heat loss, is warm in winter and cool in summer, and has good market application value in the technical fields of food, building and other materials.
Description
Technical Field
The utility model belongs to the technical field of film materials for food and building industries, and particularly relates to a puncture-resistant, weather-resistant, heat-preservation and heat-insulation composite film, a heat-preservation box and a heat-preservation layer.
Background
The heat insulation film has wide application in the fields of food, buildings and the like. For example: the take-out meal is more and more popular, but because the time of take-out delivery may be longer, the fast food can become cool and the taste is affected, and the deliverer can put the good meal into a heat preservation box, so that the fast food can not be quickly cooled. The method also comprises the following steps: in real life, the top floor of a building is always exposed to the sun in the open air for one day, so that the temperature in a room is high and the building cannot live. We will use a layer of insulation on the roof to prevent heat from spreading into the room.
At present, composite films for heat preservation and heat insulation in the market generally adopt AL foil/bubble film/AL foil and the like, the composite films have heat insulation and heat preservation effects, but because the AL foil is exposed outside, the AL foil is easily oxidized by air to cause the AL to become black and dull, the weather resistance is poor, the heat insulation and heat preservation effects are easily reduced, meanwhile, the composite films have poor puncture resistance and other performances, and then are punctured by sharp objects, and simultaneously, the cost is high because the AL foil is adopted on double surfaces.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, provides the puncture-resistant, weather-resistant and heat-insulating composite film, the heat-insulating box and the heat-insulating layer, and solves the problems of poor weather resistance, poor puncture resistance and high cost in the background technology.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the composite film is sequentially provided with a first barrier layer, a first bonding layer, a middle layer, a second bonding layer, a second barrier layer and a surface layer from inside to outside;
wherein, first barrier layer is biaxial stretching polyester aluminizer, the intermediate level is the bubble chamber membrane, the second barrier layer is BOPA aluminizer, the top layer is resistant coating of waiting, first bonding layer and second bonding layer are two ingredient polyurethane glue coating.
In a preferred embodiment of the present invention, the thickness of the first barrier layer is 12 to 15 μm.
In a preferred embodiment of the present invention, the diameter of the bubbles in the intermediate layer is 6 to 28 mm, and the height of the bubbles is 3 to 10 mm.
In a preferred embodiment of the present invention, the thickness of the second barrier layer is 10 μm.
In a preferred embodiment of the present invention, the thickness of the surface layer is 3 to 5 μm.
In a preferred embodiment of the present invention, the thickness of the first adhesive layer and the second adhesive layer is 3 to 4.5 μm.
The utility model also provides a food heat-preservation box, wherein the box body is prepared from the puncture-resistant, weather-resistant and heat-preservation heat-insulation composite film or the puncture-resistant, weather-resistant and heat-preservation heat-insulation composite film is arranged in the box body.
The utility model also provides a building roof heat insulation layer which is provided with the puncture-resistant, weather-resistant, heat-preservation and heat-insulation composite film.
Compared with the background technology, the technical scheme has the following advantages:
1. the multilayer composite film composite structure fully utilizes the advantages of each layer of film, coordinates and enhances to realize good composite performance, can meet the requirements of various performances of materials in the food and building industries, and particularly relates to a puncture-resistant, weather-resistant, heat-insulating and heat-insulating composite film. The composite film obtained by adopting the scheme solves the problems that the prior art is poor in puncture resistance and is easy to puncture by sharp objects; meanwhile, the problem of poor heat insulation caused by weather resistance and easiness in oxidation is solved.
2. The first barrier layer adopts an enhanced biaxially oriented polyester aluminized film, has bright metal glossiness, excellent gas and light barrier property and good moisture resistance and heat resistance, and simultaneously, the base film adopts a biaxially oriented polyester film, so that the base film has excellent mechanical property and excellent rigidity.
3. The middle layer adopts a bubble film, and has good shock absorption, impact resistance and moisture resistance.
4. The second barrier layer adopts a BOPA enhanced aluminized film, has excellent barrier property, and has puncture resistance and good aluminum layer adhesion due to the base film being a biaxially oriented polyamide film.
5. The surface layer adopts a weather-resistant coating, and has excellent ultraviolet resistance and excellent wear resistance.
Drawings
FIG. 1 is a layer structure diagram of a composite film of example 1.
Wherein, 10-the first barrier layer, 21-the first adhesive layer, 22-the second adhesive layer, 30-the intermediate layer, 31-the bubble, 40-the second barrier layer, 50-the surface layer.
Detailed Description
It should be noted that the term "inner" refers to the side contacting the contents, the term "outer" refers to the side away from the contents, and the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The first barrier layer is a biaxially oriented polyester aluminized film, and the thickness of the first barrier layer is 12-15 micrometers; the enhanced aluminized polyester film with the product model number of 121 of Du hong base film Co., Ltd, in Foshan can be adopted, and has excellent aluminum layer adhesion, excellent barrier property and the like; other existing reinforced biaxially oriented polyester aluminized films can also be adopted;
the second barrier layer is a BOPA aluminum laminated film and is 10 microns thick; the BOPA enhanced aluminum-plated film obtained by the BOPA enhanced aluminum-plated film and the preparation method thereof with the publication number of CN110563987A has excellent barrier property and good aluminum layer adhesive force, and meanwhile, the base film is a biaxially oriented polyamide film so that the base film has puncture resistance; other existing BOPA enhanced aluminized films can also be adopted
The surface layer is a weather-resistant coating, and the thickness of the weather-resistant coating is 3-5 micrometers; the weather-resistant coating obtained by 'a high-transparency weather-resistant coating and a solar cell back plate' with the publication number of CN201911115392.5 has excellent ultraviolet resistance and excellent wear resistance; other existing weatherable coatings may also be used.
The first bonding layer and the second bonding layer are double-component high-temperature-cooking polyurethane glue, and the thickness of the double-component high-temperature-cooking polyurethane glue is 3.0-4.5 micrometers; DICDRY LX-500/KW-75 two-component high-temperature cooking glue of Diaishengsheng (Guangzhou) ink Limited company can be adopted, and the glue has high bonding performance, and has the performances of water cooking resistance, high-temperature cooking resistance and the like; other existing double-group high-temperature cooking polyurethane glue with high bonding performance and high-temperature cooking resistance can also be adopted;
example 1
The composite film for puncture resistance, weather resistance, heat preservation and heat insulation of the embodiment comprises a first barrier layer 10, a first adhesive layer 21, an intermediate layer 30, a second adhesive layer 22, a second barrier layer 40 and a coating layer 50 which are arranged from inside to outside in sequence.
The first barrier layer 10 is a biaxially oriented polyester aluminized film with the thickness of 12 microns; in the embodiment, the enhanced aluminized polyester film with the product model number of 121 of Du Pont Hongji film Co., Ltd, in Foshan is adopted, so that the enhanced aluminized polyester film has excellent aluminum layer adhesion, excellent barrier property and the like;
the second barrier layer 40 is a BOPA enhanced aluminized film with the thickness of 10 microns; the BOPA enhanced aluminum-plated film obtained by the BOPA enhanced aluminum-plated film and the preparation method thereof with the publication number of CN110563987A in the embodiment has excellent barrier property and good aluminum layer adhesive force, and meanwhile, the base film is a biaxially oriented polyamide film so that the base film has puncture resistance;
the middle layer 30 is an air bubble film, the diameter of the air bubble 31 is 10 mm, and the height of the air bubble 31 is 5.0 mm; in this example, a bubble film of Bailey packing material Co., Ltd, which is a river source was used.
The surface layer 50 adopts a weather-resistant coating, and the thickness is 3.0 microns; in the embodiment, the weather-resistant coating obtained by using the high-transparency weather-resistant paint and the solar cell back panel with the publication number of CN110922826A has excellent ultraviolet resistance and excellent wear resistance;
the first bonding layer 21 and the second bonding layer 22 are both two-component high-temperature cooking polyurethane glue, and the thickness is 4.5 micrometers; the embodiment adopts DICDRY LX-500/KW-75 two-component high-temperature cooking glue of Diaishengsheng (Guangzhou) ink Limited, and has high bonding performance, water cooking resistance, high-temperature cooking resistance and the like;
through multiple tests and comparison and the production cost of the composite membrane, the composite membrane of the embodiment has the highest cost performance, and the relevant performance is tested, and the specific result data is shown in the following table:
table 1 composite film performance testing of example 1
| Numbering | Item | Example 1 | Detection standard |
| 1 | Impact strength | >10N.m, no delamination of the composite film | GB/T 1732-2020 |
| 2 | Weather resistance test | Qualified, no yellowing and the like | GBT 1767-1979 |
| 3 | Puncture resistance strength | ＞25N | GB/T10004-2008 |
| 4 | Wear resistance | The surface layer is intact and has no damage | GB/T 1768-1979 |
| 5 | Oxygen transmission rate (25 ℃, 85% RH) | 0.19cc/(m2*day) | ASTMF1927 |
As can be seen from the above table, the puncture-resistant, weather-resistant, heat-insulating and heat-resistant composite film provided by the embodiment has excellent impact resistance and puncture resistance, and can prevent sharp objects from puncturing to affect the heat-insulating property; meanwhile, the product has excellent wear resistance, prevents the surface damage caused by the friction of the sand blown by the wind, has excellent heat preservation and heat insulation performance, can be widely applied to the technical field of materials such as food, buildings and the like, and particularly relates to a puncture-resistant, weather-resistant, heat-preservation and heat-insulation composite film.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides an anti puncture, resistant and heat preservation and insulation complex film which characterized in that: the first barrier layer, the first bonding layer, the middle layer, the second bonding layer, the second barrier layer and the surface layer are sequentially arranged from inside to outside;
wherein, first barrier layer is biaxial stretching polyester aluminizer, the intermediate level is the bubble chamber membrane, the second barrier layer is BOPA aluminizer, the top layer is resistant coating of waiting, first bonding layer and second bonding layer are two ingredient polyurethane glue coating.
2. The composite film of claim 1, wherein the composite film is puncture resistant, weather resistant, heat insulating, and heat insulating: the thickness of the first barrier layer is 12-15 microns.
3. The composite film of claim 1, wherein the composite film is puncture resistant, weather resistant, heat insulating, and heat insulating: the diameter of the air bubbles in the middle layer is 6-28 mm, and the height of the air bubbles is 3-10 mm.
4. The composite film of claim 1, wherein the composite film is puncture resistant, weather resistant, heat insulating, and heat insulating: the thickness of the second barrier layer was 10 microns.
5. The composite film of claim 1, wherein the composite film is puncture resistant, weather resistant, heat insulating, and heat insulating: the thickness of the surface layer is 3-5 microns.
6. The composite film of claim 1, wherein the composite film is puncture resistant, weather resistant, heat insulating, and heat insulating: the thickness of the first bonding layer and the second bonding layer is 3-4.5 micrometers.
7. A food heat preservation box which is characterized in that: the box body is prepared from the puncture-resistant, weather-resistant, heat-preservation and heat-insulation composite film as claimed in any one of claims 1 to 6, or the puncture-resistant, weather-resistant, heat-preservation and heat-insulation composite film as claimed in any one of claims 1 to 6 is arranged in the box body.
8. A building roof insulating layer is characterized in that: the puncture-resistant, weather-resistant, heat-insulating and heat-insulating composite film as claimed in any one of claims 1 to 6 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121613883.5U CN216001727U (en) | 2021-07-15 | 2021-07-15 | Puncture-resistant, weather-resistant, heat-preservation and heat-insulation composite film, heat-preservation box and heat-insulation layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121613883.5U CN216001727U (en) | 2021-07-15 | 2021-07-15 | Puncture-resistant, weather-resistant, heat-preservation and heat-insulation composite film, heat-preservation box and heat-insulation layer |
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| Publication Number | Publication Date |
|---|---|
| CN216001727U true CN216001727U (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121613883.5U Active CN216001727U (en) | 2021-07-15 | 2021-07-15 | Puncture-resistant, weather-resistant, heat-preservation and heat-insulation composite film, heat-preservation box and heat-insulation layer |
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| CN (1) | CN216001727U (en) |
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2021
- 2021-07-15 CN CN202121613883.5U patent/CN216001727U/en active Active
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