Aerogel heat insulation film

Abstract

The utility model discloses an aerogel heat insulation film, and relates to the technical field of aerogel materials. The aerogel wear-resistant coating comprises an aerogel layer, a protective film layer and a wear-resistant coating, the two protective film layers are located on the two sides of the aerogel layer respectively. The two wear-resistant coatings are located on the sides, away from the aerogel layer, of the two protective film layers correspondingly. The protective film layer comprises a base material layer and a foam layer, and the base material layer is used for being coated with the wear-resistant coating; the foam layer is positioned between the base material layer and the aerogel layer; the base material layer is bonded with the foam layer through a first adhesive layer; and the foam layer and the aerogel layer are bonded through a second adhesive layer. By the adoption of the technical scheme, the aerogel strength is improved, and the service life of the heat insulation film is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of aerogel materials, in particular to an aerogel heat insulation film. Background Art

[0002] Aerogel is the best heat insulation material in the world at present. By utilizing the heat insulation performance of aerogel, a new type of high-efficiency aerogel heat insulation composite material can be made, which is applied in the field of energy-saving buildings and has good heat insulation, fireproof, sound insulation, light transmission and other properties. In high-rise buildings, aerogel can reduce the mass of buildings. Aerogel can be combined with ordinary glass to form a film about 100pim on the glass surface, effectively improving the energy-saving and heat preservation effect. At the same time, the particles of aerogel can be encapsulated in laminated glass or laminated polymethyl methacrylate (PMMA) thin plates to form a material similar to a sandwich structure, which can replace existing building materials (such as building glass, curtain walls, etc.). Transparent aerogel can also be used to make the covering layer of solar collectors, greatly improving the utilization rate of solar energy. In addition, aerogels such as SiO2, Al2O3, ZrO2 and TiO2 and their composite materials can be widely used as thermal insulation materials for high-temperature equipment, pipelines and high-speed aircraft. Among the many excellent properties of aerogel, the application of thermal properties is the first choice. Therefore, aerogel thermal insulation materials are still the main application fields and directions. The most common aerogel material products on the market are aerogel felts, aerogel coatings, etc. Among them, aerogel felts have been widely used in the field of heat preservation of petrochemical pipelines.

[0003] However, the aerogel has low structural strength and is easy to shed powder. If only the aerogel layer is used as the heat insulation material, the service performance of the aerogel will be affected and it needs to be improved urgently. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an aerogel heat insulation film aiming at the defects and deficiencies of the prior art, which has the advantages of improving the strength of aerogel and prolonging the service life of the heat insulation film.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is: an aerogel heat insulation film, comprising:

[0006] An aerogel layer;

[0007] A protective film layer, having two layers, respectively located on both sides of the aerogel layer; and

[0008] A wear-resistant coating, having two layers, respectively located on the sides of the two protective film layers (300) away from the aerogel layer.

[0009] The utility model is further arranged that the protective film layer comprises:

[0010] A base material layer for coating the wear-resistant coating; and

[0011] The foam layer is located between the base material layer and the aerogel layer.

[0012] In the further setting of the present utility model, the base material layer and the foam layer are bonded through a first adhesive layer.

[0013] In the further setting of the present utility model, the first adhesive layer is a high-temperature resistant and flame-retardant adhesive.

[0014] In the further setting of the present utility model, the first adhesive layer is a high-temperature resistant acrylic adhesive, hot melt adhesive, epoxy adhesive or silicone adhesive.

[0015] In the further setting of the present utility model, the foam layer and the aerogel layer are bonded through a second adhesive layer.

[0016] In the further setting of the present utility model, the second adhesive layer is an acrylic adhesive, hot melt adhesive, epoxy adhesive or silicone adhesive.

[0017] In the further setting of the present utility model, the material used for the base material layer is PI or PET.

[0018] In the further setting of the present utility model, the thickness of the aerogel layer is 1 - 10 mm, and the thickness of the wear-resistant coating is 0.005 - 0.05 mm.

[0019] In the further setting of the present utility model, the thickness of the base material layer is 0.01 - 0.1 mm, and the thickness of the foam layer is 0.1 - 2 mm.

[0020] After adopting the above technical solution, the beneficial effects of the present utility model are as follows:

[0021] 1. In the present utility model, by arranging protective film layers on both sides of the aerogel layer, the anti-extrusion property of the heat insulation film is increased, the anti-corrosion protection property is improved, and the service life of the heat insulation film is prolonged; and by arranging a wear-resistant coating on the outside of the protective film, the wear resistance of the heat insulation film is increased, effectively improving the service life of the heat insulation film.

[0022] 2. In the present utility model, the protective film layer includes: a base material layer and a foam layer. The combination of the foam and the base material increases the anti-extrusion property of the heat insulation film, improves the anti-corrosion protection property, effectively protects the aerogel layer, and prolongs the service life of the heat insulation film. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 This is a schematic structural diagram of the present utility model.

[0025] Explanation of reference numerals in the drawings: 100, aerogel layer; 200, second adhesive layer; 300, protective film layer; 310, foam layer; 320, first adhesive layer; 330, substrate layer; 400, wear-resistant coating. Detailed implementation manners

[0026] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This specific embodiment is only an explanation of the present utility model, and it does not limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

[0028] This embodiment provides an aerogel heat insulation film. Referring to Figure 1 , it includes: an aerogel layer 100, a protective film layer 300, and a wear-resistant coating 400.

[0029] Among them, the aerogel layer 100 is the middle layer. As a heat insulation material, aerogel has the advantages of light weight, low thermal conductivity, and good flame retardancy, and is an efficient heat insulation material. However, the single aerogel layer 100 has low structural strength and is prone to powder falling, which affects the use performance of the aerogel.

[0030] The protective film layer 300 has two layers, which are respectively located on both sides of the aerogel layer 100; by providing the protective film layer 300, the anti-extrusion property of the heat insulation film is increased, the anti-corrosion protection property is improved, and the service life of the heat insulation film is prolonged.

[0031] The wear-resistant coating 400 also has two layers, which are respectively located on the side of the two protective film layers 300 away from the aerogel layer 100. That is, the aerogel layer 100 is the middle layer, the protective film layer 300 is located on both sides of the aerogel layer 100, and the wear-resistant coating 400 is located outside the protective film layer 300. By providing the wear-resistant coating 400 on the outside of the protective film, the wear resistance of the heat insulation film is increased, and the service life of the heat insulation film is effectively prolonged.

[0032] In some embodiments, referring to Figure 1 , the protective film layer 300 includes: a substrate layer 330 and a foam layer 310. The substrate layer 330 is used for coating the wear-resistant coating 400; the foam layer 310 is located between the substrate layer 330 and the aerogel layer 100. The foam layer 310 has a buffering effect and improves the overall anti-extrusion property; the substrate layer 330 in contact with the foam layer 310 is coated with a wear-resistant coating 400. In addition to improving the wear resistance, it can also play roles such as acid and alkali resistance, high temperature and high humidity resistance, etc.

[0033] The base material layer 330 and the foam layer 310 are bonded through the first adhesive layer 320. Since neither the base material layer 330 nor the foam layer 310 has adhesiveness itself, it is necessary to use the first adhesive layer 320 to achieve the fixed bonding of the two. As a preferred solution, the first adhesive layer 320 is a high-temperature resistant and flame-retardant adhesive, and the foam layer 310 uses high-temperature resistant foam. If ordinary foam is used, it is easy to soften and deform under a high-temperature working environment for a long time; the high-temperature resistant foam can play a role in buffering and heat insulation. More specifically, the first adhesive layer 320 uses a high-temperature resistant acrylic adhesive. In other embodiments, the first adhesive layer 320 can also use hot melt adhesive, epoxy adhesive or silicone.

[0034] In some embodiments, with continued reference to Figure 1 , the foam layer 310 and the aerogel layer 100 are bonded through the second adhesive layer 200, so that the foam layer 310 can be closely combined with the aerogel layer 100. In this embodiment, the second adhesive layer 200 uses acrylic adhesive. In other embodiments, hot melt adhesive, epoxy adhesive or silicone.

[0035] In this embodiment, the material used for the base material layer 330 is PI. In other embodiments, the base material layer 330 can also use other materials, such as PET.

[0036] In this solution, in order to ensure that better performance can be achieved between the layers, the thickness of the aerogel layer 100 is controlled at 1 - 10 mm, the thickness of the wear-resistant coating 400 is controlled at 0.005 - 0.05 mm, the thickness of the base material layer 330 is controlled at 0.01 - 0.1 mm, the thickness of the foam layer 310 is controlled at 0.1 - 2 mm, the thickness of the first adhesive layer 320 is controlled at 0.005 - 0.1 mm, and the thickness of the second adhesive layer 200 is also controlled at 0.005 - 0.1 mm.

[0037] The reasons for the thickness selection of each layer structure are as follows: Aerogel layer 100: If it is too thin, the heat insulation effect is poor; if it is too thick, it occupies space. Wear-resistant coating 400: Performance effectiveness. Base material layer 330: It has a certain strength and should not be too thick (not easy to bend). Foam layer 310: If it is too thin, the heat insulation effect is poor; if it is too thick, it occupies space. First adhesive layer 320 and second adhesive layer 200: To ensure sufficient bonding strength, and if it is too thick, there is a high risk of glue overflow.

[0038] In this embodiment, the thickness of the aerogel layer 100 is 5 mm, the thickness of the wear-resistant coating 400 is 0.25 mm, the thickness of the base material layer 330 is 0.05 mm, the thickness of the foam layer 310 is 1 mm, the thickness of the first adhesive layer 320 is 0.05 mm, and the thickness of the second adhesive layer 200 is 0.05 mm.

[0039] In other embodiments, the thickness of the aerogel layer 100 can also be 1 mm, 2 mm, 3 mm, 4 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, etc.; the thickness of the wear-resistant coating 400 can also be 0.005 mm, 0.008 mm, 0.01 mm, 0.02 mm, 0.03 mm, 0.04 mm, 0.05 mm, etc.; the thickness of the substrate layer 330 can be 0.01 mm, 0.02 mm, 0.03 mm, 0.04 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 1 mm, etc.; the thickness of the foam layer 310 can be 0.1 mm, 0.03 mm, 0.05 mm, 0.08 mm, 1.2 mm, 1.5 mm, 1.8 mm, 2 mm, etc.; the thickness of the first adhesive layer 320 is 0.005 mm, 0.008 mm, 0.01 mm, 0.03 mm, 0.07 mm, 0.08 mm, 0.1 mm, etc.; the thickness of the second adhesive layer 200 is 0.005 mm, 0.008 mm, 0.01 mm, 0.03 mm, 0.07 mm, 0.08 mm, 0.1 mm, etc.

[0040] In this solution, the outermost layer is coated with the wear-resistant coating 400 to increase the wear resistance of the heat insulation film and effectively extend the service life of the aerogel. Without the wear-resistant coating 400, the substrate layer 330 is prone to wear; the combination of the foam layer 310 and the substrate layer 330 increases the anti-extrusion property of the heat insulation film, improves the anti-corrosion protection property, and extends the service life of the heat insulation film.

[0041] The above is only used to illustrate the technical solution of the present invention and not to limit it. Other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention shall be covered by the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. An aerogel thermal insulation film, characterized in that, Comprising: An aerogel layer (100); A protective film layer (300) having two layers, respectively located on both sides of the aerogel layer (100); And A wear-resistant coating (400) having two layers, respectively located on the side of the two protective film layers (300) away from the aerogel layer (100).

2. The aerogel thermal insulation film according to claim 1, wherein The protective film layer (300) includes: A substrate layer (330) for coating the wear-resistant coating (400); and A foam layer (310) located between the substrate layer (330) and the aerogel layer (100).

3. The aerogel thermal insulation film according to claim 2, wherein The substrate layer (330) and the foam layer (310) are bonded by a first adhesive layer (320).

4. The aerogel thermal insulation film according to claim 3, wherein The first adhesive layer (320) is a high-temperature resistant and flame-retardant adhesive.

5. The aerogel thermal insulation film according to claim 4, wherein The first adhesive layer (320) is a high-temperature resistant acrylic adhesive, hot melt adhesive, epoxy adhesive or silicone adhesive.

6. The aerogel thermal insulation film according to claim 2, wherein The foam layer (310) and the aerogel layer (100) are bonded by a second adhesive layer (200).

7. The aerogel thermal insulation film according to claim 6, wherein, The second adhesive layer (200) is an acrylic adhesive, hot melt adhesive, epoxy adhesive or silicone adhesive.

8. The aerogel thermal insulation film according to claim 2, wherein, The material used for the substrate layer (330) is PI or PET.

9. The aerogel thermal insulation film according to claim 1, characterized in that, The thickness of the aerogel layer (100) is 1 - 10 mm, and the thickness of the wear-resistant coating (400) is 0.005 - 0.05 mm.

10. The aerogel thermal insulation film according to claim 2, wherein, The thickness of the substrate layer (330) is 0.01 - 0.1 mm, and the thickness of the foam layer (310) is 0.1 - 2 mm.

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