Nano cellulose film with heat insulation function

Abstract

The utility model relates to the technical field of nanocellulose films, in particular to a nanocellulose film with a heat insulation function, which comprises a reflecting layer used for reflecting infrared rays and partial visible light in sunlight, a heat insulation layer connected to the bottom end of the reflecting layer, and a protective layer connected to the bottom end of the heat insulation layer. The bottom end of the protective layer is connected with a nanocellulose film body, and the bottom end of the nanocellulose film body is connected with an adhesive layer. After the bonding layer is bonded on a working surface, external temperature sequentially penetrates through the reflecting layer, the heat insulation layer, the protection layer and the nano-cellulose film body, and through multiple times of blocking, the heat insulation effect is guaranteed, the purpose of protecting the nano-cellulose film body is achieved, the film is prevented from being scraped and abraded, and the service life of the nano-cellulose film is prolonged. The nano cellulose film with the heat insulation function can effectively reduce heat transfer and reduce energy consumption in the fields of buildings, aerospace vehicles, vehicles and the like, so that dependence on energy is reduced, and energy conservation and emission reduction are promoted.

Description

Technical Field

[0001] The utility model relates to the technical field of nanocellulose films, and particularly relates to a nanocellulose film with heat insulation function. Background Art

[0002] Nanocellulose films have high strength, high toughness and good barrier properties, and can be used to manufacture food packaging materials to extend the shelf life of food. Due to the small size and high crystallinity of nanofibers, nanocellulose films have high strength and high toughness, and are suitable for occasions that need to bear large mechanical stresses.

[0003] Nanocellulose films have shown potential application value in many fields. However, with the increasing demand for high-efficiency heat insulation materials, nanocellulose films with stronger heat insulation performance will have broad market potential. Further improvement of its heat insulation performance is expected to expand its application scope and enable it to play an important role in more fields.

[0004] Therefore, it is necessary to invent a nanocellulose film with heat insulation function to solve the above problems. Summary of the Utility Model

[0005] To solve the deficiencies of the prior art, the purpose of the utility model is to provide a nanocellulose film with heat insulation function, which solves the problem that the nanocellulose film cannot meet the requirements of stronger heat insulation materials during actual use.

[0006] To achieve the above goal, the utility model adopts the following technical solutions:

[0007] A nanocellulose film with heat insulation function, including a reflection layer for reflecting infrared rays and part of visible light in sunlight, the bottom end of the reflection layer is connected with a heat insulation layer, the bottom end of the heat insulation layer is connected with a protection layer, the bottom end of the protection layer is connected with a nanocellulose film body, and the bottom end of the nanocellulose film body is connected with an adhesive layer.

[0008] As a preferred solution of the utility model, the reflection layer is an aluminum reflective film, and the thickness of the reflection layer is one millimeter.

[0009] As a preferred solution of the utility model, the material of the heat insulation layer is polystyrene, which is adhesively bonded to the upper surface of the protection layer by coating, and the thickness of the heat insulation layer is two millimeters.

[0010] As a preferred solution of the utility model, the thickness of the nanocellulose film body is three millimeters.

[0011] As a preferred embodiment of the present utility model, the material of the protective layer is polyester resin. The protective layer is adhered to the upper surface of the nanocellulose film body, and the thickness of the protective layer is one-half of that of the nanocellulose film body.

[0012] As a preferred embodiment of the present utility model, the adhesive layer is adhered to the bottom end of the nanocellulose film body. The adhesive layer is a flame-retardant solid glue, and the thickness of the adhesive layer is 1 mm.

[0013] As a preferred embodiment of the present utility model, the reflective layer is used to be exposed to the outside of the air, and the adhesive layer is used to be adhered to the outer surface of the workpiece.

[0014] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0015] In the present utility model, by arranging the reflective layer and the heat-insulating layer outside the protective layer, the heat-insulating ability of the film is improved. Through the arrangement of the adhesive layer, after the adhesive layer is adhered to the working surface, the outside temperature sequentially passes through the reflective layer, the heat-insulating layer, the protective layer, and the nanocellulose film body. Through multiple barriers, the heat-insulating effect is ensured. At the same time, through the adhesive layer, the reflective layer of the film is used as the outer surface. Therefore, only by arranging the protective layer on one side of the nanocellulose film body, the purpose of protecting the nanocellulose film body can be achieved, preventing the film from being scratched and worn. The nanocellulose film with heat-insulating function can effectively reduce heat transfer, reduce energy consumption in fields such as buildings, aerospace vehicles, and transportation tools, thereby reducing the dependence on energy and promoting energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0017] Description of the reference numerals: 1, reflective layer; 2, heat-insulating layer; 3, protective layer; 4, nanocellulose film body; 5, adhesive layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present utility model will be further described below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, and should not be used to limit the protection scope of the present utility model.

[0019] The present utility model provides a Figure 1 nanocellulose film with heat-insulating function as shown in the figure, including a reflective layer 1 for reflecting infrared rays and part of visible light in sunlight. The bottom end of the reflective layer 1 is connected to a heat-insulating layer 2. The bottom end of the heat-insulating layer 2 is connected to a protective layer 3. The bottom end of the protective layer 3 is connected to a nanocellulose film body 4. The bottom end of the nanocellulose film body 4 is connected to an adhesive layer 5.

[0020] The reflective layer 1 is an aluminum reflective film with a thickness of one millimeter. The aluminum reflective film has advantages such as low cost and simple preparation process, and has good reflective performance in the ultraviolet, visible, and infrared bands.

[0021] The heat insulation layer 2 is made of polystyrene and is adhesively bonded to the upper surface of the protective layer 3 by coating. The thickness of the heat insulation layer 2 is two millimeters. The closed-cell structure inside the polystyrene further enhances its heat insulation performance because the closed-cell structure can reduce air convection and heat conduction, thereby improving the heat insulation effect.

[0022] The thickness of the nanocellulose film body 4 is three millimeters. The nanocellulose film body 4 is arranged on the side away from the reflective layer 1, so as to ensure the high strength and high toughness of the nanocellulose film and meet the occasions that need to bear large mechanical stresses.

[0023] The protective layer 3 is made of polyester resin. The protective layer 3 is adhesively bonded to the upper surface of the nanocellulose film body 4. The thickness of the protective layer 3 is one-half of that of the nanocellulose film body 4, and is used to protect the nanocellulose film body 4 from external factors such as mechanical damage and chemical corrosion, and has high wear resistance, weather resistance, and corrosion resistance.

[0024] The adhesive layer 5 is adhesively bonded to the bottom end of the nanocellulose film body 4. The adhesive layer 5 is a flame-retardant solid glue with a thickness of one millimeter. The main function of the adhesive layer 5 is to firmly adhere the film material to the target surface, prevent the film from falling off or shifting during use, and ensure the stability and durability of the film.

[0025] The reflective layer 1 is used to be exposed on the outer side of the air, and the adhesive layer 5 is used to be adhesively bonded to the outer surface of the workpiece. It is determined by the reflective layer 1 and the adhesive layer 5, which is convenient to distinguish the front and back working surfaces of the film, thereby improving the film adhesion efficiency and work efficiency.

[0026] In this utility model, by arranging the reflective layer 1 and the heat insulation layer 2 on the outer side of the protective layer 3, the heat insulation ability of the film is improved. Through the arrangement of the adhesive layer 5, after the adhesive layer 5 is adhesively bonded to the working surface, the external temperature sequentially passes through the reflective layer 1, the heat insulation layer 2, the protective layer 3, and the nanocellulose film body 4. Through multiple barriers, the heat insulation effect is ensured. At the same time, through the adhesive layer 5, the reflective layer 1 of the film is used as the outer surface, so that only by arranging the protective layer 3 on one side of the nanocellulose film body 4, the purpose of protecting the nanocellulose film body 4 can be achieved, preventing the film from being scratched and worn. The nanocellulose film with heat insulation function can effectively reduce heat transfer, reduce energy consumption in fields such as buildings, aerospace vehicles, and transportation vehicles, thereby reducing the dependence on energy and promoting energy conservation and emission reduction.

[0027] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the technical principle of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A nanocellulose film with heat insulation function, characterized in that: It includes a reflective layer (1) for reflecting infrared rays and part of visible light in sunlight. The bottom end of the reflective layer (1) is connected to a heat insulation layer (2). The bottom end of the heat insulation layer (2) is connected to a protective layer (3). The bottom end of the protective layer (3) is connected to a nano-cellulose film body (4). The bottom end of the nano-cellulose film body (4) is connected to an adhesive layer (5).

2. The nano-cellulose film with heat insulation function according to claim 1, characterized in that: The reflective layer (1) is an aluminum reflective film, and the thickness of the reflective layer (1) is one millimeter.

3. The nanocellulose film with heat insulation function according to claim 1, characterized in that: The material of the heat insulation layer (2) is polystyrene, and it is adhesively bonded to the upper surface of the protective layer (3) by coating. The thickness of the heat insulation layer (2) is two millimeters.

4. A nanocellulose film with heat insulation function according to claim 1, characterized in that: The thickness of the nano-cellulose film body (4) is three millimeters.

5. The nanofibrillated cellulose film with heat insulation function according to claim 1, characterized in that: The material of the protective layer (3) is polyester resin. The protective layer (3) is adhesively bonded to the upper surface of the nano-cellulose film body (4), and the thickness of the protective layer (3) is one half of that of the nano-cellulose film body (4).

6. The nanofibrillated cellulose film with heat insulation function according to claim 1, characterized in that: The adhesive layer (5) is adhesively bonded to the bottom end of the nano-cellulose film body (4). The adhesive layer (5) is a flame-retardant solid glue, and the thickness of the adhesive layer (5) is one millimeter.

7. The nanofibrillated cellulose film with heat insulation function according to claim 6, characterized in that: The reflective layer (1) is used to be exposed to the outside of the air, and the adhesive layer (5) is used to be adhesively bonded to the outer surface of the workpiece.

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