CN210821297U - Corrosion-resistant easy-to-transport film material for vacuum insulation panel - Google Patents
Corrosion-resistant easy-to-transport film material for vacuum insulation panel Download PDFInfo
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- CN210821297U CN210821297U CN201921428527.9U CN201921428527U CN210821297U CN 210821297 U CN210821297 U CN 210821297U CN 201921428527 U CN201921428527 U CN 201921428527U CN 210821297 U CN210821297 U CN 210821297U
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Abstract
The utility model provides a corrosion-resistant easy-to-transport film material for a vacuum heat-insulating plate, which reduces convection inside fibers by arranging an inner core material as a core material of a woven structure, reduces heat dissipation and improves the heat-insulating performance of the vacuum heat-insulating plate; meanwhile, the heat insulation and corrosion resistance of the inner core material are improved by the structure that the outer layer is a polyurethane foaming material layer, the inner layer is aerogel felt and the middle layer is a vacuum composite film material; in addition, the vacuum membrane material adopts a multi-layer composite structure, is provided with a protective layer, a heat insulation layer and a flame retardant layer, is connected through an adhesive, is easy to produce in batches, has stable performance, and can realize that the heat conductivity coefficient of the whole vacuum heat insulation plate is 1.8-2.2 mW/m.K.
Description
Technical Field
The utility model belongs to the vacuum insulation material field relates to a membrane material for vacuum insulation panels that corrosion-resistant easily transported.
Background
The vacuum heat preservation is carried out by utilizing the principle that the gas density is reduced due to the reduction of the gas pressure, the gas molecule mean free path is increased, the collision frequency and the collision strength between gas molecules and between the gas molecules and the container wall are relatively weakened, and the collision is generally called heat transfer. Heat transfer is currently common in three ways: 1, convection heat transfer; 2, contact heat transfer; and 3, radiation heat transfer, the first two heat transfer ways need heat transfer media, and the vacuum environment is realized in engineering, so that the heat transfer method is very difficult and has high cost.
In the field of heat insulation at present, a vacuum membrane material is constructed to package an internal core material, external force is used for vacuumizing to manufacture a vacuum environment, heat is transferred, and vacuum heat insulation is realized, and the material is a vacuum heat insulation material and is also a common vacuum heat insulation plate. Because the vacuum-pumping treatment is carried out, the strict requirements are put on the vacuum film material of the outer layer.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems that the vacuum membrane material is not easy to pierce and is corrosion-resistant and easy to transport in actual production and simultaneously improve the good heat insulation performance of the used vacuum heat insulation plate as much as possible, the utility model provides a membrane material for a corrosion-resistant and easy-to-transport vacuum heat insulation plate, the membrane material is a multilayer composite membrane material, a polyurethane foaming material layer with the thickness of 1-100 microns is sprayed on the outer surface of the membrane material, and the membrane material consists of a protective layer, a heat insulation layer and a flame retardant layer; wherein the protective layer is provided with two groups which are respectively arranged atThe flame-retardant layer is arranged between the protective layer and the heat-insulating layer, and the flame-retardant layer and the heat-insulating layer are arranged on the upper surface and the lower surface of the membrane material; the flame-retardant layer is set to be nano SiO2A particulate layer.
As an improvement, the protective layer is a polypropylene film layer or an ETFF film layer, and the thickness is set to be 5-25 microns.
As an improvement, the heat insulation layer is an aluminum layer or a polyester aluminum plated layer, and the thickness of the heat insulation layer is set to be 15-50 micrometers.
As an improvement, the polyurethane foam layer is arranged on one surface of the membrane material, and the surface is the surface which is far away from the surface of the membrane material and is used for containing the core material; and a layer of aerogel felt is further arranged and sprayed or smeared on the surface close to the core material when the core material is placed in the membrane material.
As an improvement, the core material is a core material of a woven preform structure of basalt mineral fibers and glass fibers, the fibers of the preform structure are crossed to form V-shaped arrangement or grid woven arrangement, and the volume fraction of the basalt mineral fibers is 30-45%.
Has the advantages that: the film material for the corrosion-resistant easily-transported vacuum heat-insulating plate provided by the utility model reduces convection inside fibers by arranging the core material as the core material of the woven structure, reduces heat dissipation and improves the heat-insulating performance of the vacuum heat-insulating plate; meanwhile, the heat insulation and corrosion resistance of the inner core material are improved by the structure that the outer layer is a polyurethane foaming material layer, the inner layer is aerogel felt and the middle layer is a vacuum composite film material; in addition, the vacuum membrane material adopts a multi-layer composite structure, is provided with a protective layer, a heat insulation layer and a flame retardant layer, is connected through an adhesive, is easy to produce in batches, has stable performance, and can realize that the heat conductivity coefficient of the whole vacuum heat insulation plate is 1.8-2.2 mW/m.K.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a cross-sectional view of the core material of the present invention.
Fig. 2 is a schematic diagram of the weaving structure of the core material inside the membrane material of the present invention.
In the drawings: 1. a protective layer; 2. a thermal insulation layer; 3. a flame retardant layer; 4. a polyurethane foam layer; 5. aerogel blankets.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
A corrosion-resistant easy-to-transport film material for a vacuum insulation panel is a multi-layer composite film material, a polyurethane foam material layer 4 with the thickness of 1-100 microns is sprayed on the outer surface of the film material, and the film material consists of a protective layer 1, a heat insulation layer 2 and a flame retardant layer 3; wherein the protective layer is provided with two groups which are respectively arranged on the upper surface and the lower surface of the membrane material, and the flame retardant layer is arranged between the protective layer 1 and the heat insulation layer 2 and is provided with two layers; the flame-retardant layer 3 is set to be nano SiO2A particulate layer.
The protective layer 1 is a polypropylene film layer or an ETFF film layer, the thickness of the protective layer is set to be 5-25 micrometers, the protective layer is preferably a polypropylene film layer, the protective layer is not limited to the polypropylene film layer and the ETFF film layer, the protective layer can also be a polyethylene film layer, and foreign matters such as outside air and moisture can be isolated through thermoplasticity. The heat insulation layer 2 is an aluminum layer or a polyester aluminum plated layer, the thickness of the heat insulation layer is set to be 15-50 micrometers, and the heat insulation layer is preferably a polyester aluminum plated layer VMEPT and plays a role in heat insulation and flame retardance.
The polyurethane foam material layer 4 is arranged on one surface of the film material, and the surface is the surface which is far away from the surface of the film material and is used for containing the core material; still be provided with one deck aerogel 5, the spraying or scribble the one side that closes on when holding the core material in the membrane material. Wherein the aerogel felt is aerogel prepared from KH550 modified nano silicon dioxide, and the thickness is 0.6-3 mm.
The core material is a core material of a woven preform structure of basalt mineral fibers and glass fibers, the fibers of the preform structure are crossed to form V-shaped arrangement or grid weaving arrangement, and the volume fraction of the basalt mineral fibers is 30-45%. Wherein the angle of weaving is set to 45-90 deg. when the meshes are arranged.
As another embodiment of the present invention, the inside of the cross gap is filled with silica aerogel particles having a volume fraction of 5 to 10%. Meanwhile, the strength of the vacuum insulation panel can be improved by the aid of the braided structure, heat dissipation can be reduced, and the heat conductivity coefficient of the whole vacuum insulation panel is 1.8-2.2 mW/m.K.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. The utility model provides a membrane material for corrosion-resistant easy vacuum insulation panel that transports which characterized in that: the film material is a multi-layer composite film material, a polyurethane foaming material layer (4) with the thickness of 1-100 microns is sprayed on the outer surface of the film material, and the film material consists of a protective layer (1), a heat insulation layer (2) and a flame retardant layer (3); wherein the protective layer is provided with two groups which are respectively arranged on the upper surface and the lower surface of the membrane material, and the flame retardant layer is arranged between the protective layer (1) and the heat insulation layer (2) and is provided with two layers; the flame-retardant layer (3) is set to be nano SiO2A particulate layer.
2. The film material for a corrosion-resistant easy-to-transport vacuum insulation panel according to claim 1, wherein: the protective layer is a polypropylene film layer, and the thickness of the protective layer is set to be 5-25 micrometers.
3. The film material for a corrosion-resistant easy-to-transport vacuum insulation panel according to claim 1, wherein: the heat insulation layer (2) is an aluminum layer or a polyester aluminum plating layer, and the thickness of the heat insulation layer is set to be 15-50 micrometers.
4. The film material for a corrosion-resistant easy-to-transport vacuum insulation panel according to claim 1, wherein: the polyurethane foaming material layer (4) is arranged on one surface of the membrane material, and the surface is the surface which is far away from the surface of the membrane material and is used for containing the core material; and a layer of aerogel felt (5) is also arranged and sprayed or smeared on the surface close to the core material when the core material is placed in the membrane material.
5. The film material for a corrosion-resistant easy-to-transport vacuum insulation panel according to claim 4, wherein: the core material is a core material of a woven preform structure of basalt mineral fibers and glass fibers, and the fibers of the preform structure are crossed to form V-shaped arrangement or grid woven arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921428527.9U CN210821297U (en) | 2019-08-30 | 2019-08-30 | Corrosion-resistant easy-to-transport film material for vacuum insulation panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921428527.9U CN210821297U (en) | 2019-08-30 | 2019-08-30 | Corrosion-resistant easy-to-transport film material for vacuum insulation panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210821297U true CN210821297U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921428527.9U Active CN210821297U (en) | 2019-08-30 | 2019-08-30 | Corrosion-resistant easy-to-transport film material for vacuum insulation panel |
Country Status (1)
| Country | Link |
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| CN (1) | CN210821297U (en) |
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2019
- 2019-08-30 CN CN201921428527.9U patent/CN210821297U/en active Active
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