Flame-retardant aluminum foil composite heat insulation film

Abstract

The utility model discloses a flame-retardant aluminum foil composite heat insulation film which comprises an aluminum foil layer, a bonding layer is arranged on one side of the aluminum foil layer, a nylon layer is arranged on the other side of the aluminum foil layer, the aluminum foil layer and the bonding layer are bonded through a first adhesive layer, and the aluminum foil layer and the nylon layer are bonded through a second adhesive layer. A first reserved groove is formed in the side face, close to the aluminum foil layer, of the bonding layer, and a second reserved groove is formed in the side face, close to the aluminum foil layer, of the nylon layer. The flame-retardant aluminum foil composite heat-insulating film is provided with the first preformed groove and the second preformed groove, and the first preformed groove and the second preformed groove are formed in the face, close to the aluminum foil layer, of the bonding layer and the face, close to the aluminum foil layer, of the nylon layer, so that stretching and extrusion on the bonding layer and the nylon layer can be reduced through the first preformed groove and the second preformed groove during bending; and gaps in the whole composite film after bending are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum foil composite films, and particularly relates to a flame-retardant aluminum foil composite heat-insulating film. Background Technique

[0002] The aluminum foil composite film is the most commonly used composite roll film, usually containing pure aluminum and aluminized aluminum. The aluminum foil composite film has good mechanical strength, light weight, no heat adhesiveness, metallic luster, good light-shielding property, strong reflection ability to light, is not easily corroded, good barrier property, moisture-proof and waterproof, strong airtightness, and has the characteristic of fragrance retention.

[0003] When the existing composite film is in use, it generally needs to be bent to wrap an object. However, during the bending process, when multiple layers of materials are bent, gaps will appear due to no reserved slots, resulting in a decline in the subsequent storage protection effect and affecting the use effect. Content of the Utility Model

[0004] The purpose of the utility model is to provide a flame-retardant aluminum foil composite heat-insulating film to solve the problem that when the aluminum foil composite film is bent, gaps will appear due to no reserved slots when multiple layers of materials are bent, resulting in a decline in the subsequent storage protection effect and affecting the use effect as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A flame-retardant aluminum foil composite heat-insulating film, including an aluminum foil layer,

[0006] A bonding layer is arranged on one side of the aluminum foil layer, and a nylon layer is arranged on the other side of the aluminum foil layer. The aluminum foil layer and the bonding layer are bonded through an adhesive layer 1, and the aluminum foil layer and the nylon layer are bonded through an adhesive layer 2. A reserved slot 1 is opened on the side of the bonding layer close to the aluminum foil layer, and a reserved slot 2 is opened on the side of the nylon layer close to the aluminum foil layer.

[0007] By adopting the above technical scheme, during bending, the reserved slot 1 and the reserved slot 2 can be used to reduce the stretching and extrusion of the bonding layer and the nylon layer itself, and avoid the appearance of gaps in the overall composite film after bending.

[0008] As a further scheme of the utility model: The nylon layer is made of halogen-free flame-retardant nylon, and a plurality of anti-slip protrusions are arranged on the side of the nylon layer away from the aluminum foil layer.

[0009] By adopting the above technical scheme, the nylon layer is used to improve the flame-retardant effect of the overall composite film, and the design of the anti-slip protrusions is convenient for increasing the friction coefficient.

[0010] As a further scheme of the utility model: Both the reserved slot 1 and the reserved slot 2 are designed in a "rice" shape.

[0011] By adopting the above technical solution, it is convenient to perform bending at multiple angles without generating gaps.

[0012] As a further solution of the present utility model: an anti-corrosion coating is further coated on the outer side of the nylon layer.

[0013] By adopting the above technical solution, the anti-corrosion effect of the overall structure is improved.

[0014] Compared with the prior art, the beneficial effect of the present utility model is: the flame-retardant aluminum foil composite heat insulation film,

[0015] is provided with a first reserved groove and a second reserved groove. By using the first reserved groove and the second reserved groove opened on the side of the bonding layer and the nylon layer close to the aluminum foil layer, when bending, the first reserved groove and the second reserved groove can be used to reduce the stretching and extrusion of the bonding layer and the nylon layer itself, avoiding the appearance of gaps in the overall composite film after bending. At the same time, the design of the first reserved groove and the second reserved groove can make the first adhesive layer between the aluminum foil layer and the bonding layer and the second adhesive layer between the aluminum foil layer and the nylon layer have a larger contact area, thereby improving the bonding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic cross-sectional structure diagram of the present utility model;

[0017] Figure 2 is a schematic side view structure diagram of the bonding layer of the present utility model.

[0018] In the figure: 1, aluminum foil layer; 2, bonding layer; 201, first reserved groove; 3, nylon layer; 301, second reserved groove; 4, first adhesive layer; 5, second adhesive layer; 6, anti-slip protrusion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figure 1-2 , the present utility model provides a technical solution: a flame-retardant aluminum foil composite heat insulation film, including an aluminum foil layer 1,

[0021] One side of the aluminum foil layer 1 is provided with an adhesive layer 2, and the other side of the aluminum foil layer 1 is provided with a nylon layer 3. The aluminum foil layer 1 and the adhesive layer 2 are bonded through an adhesive layer 4, and the aluminum foil layer 1 and the nylon layer 3 are bonded through an adhesive layer 5. A first reserved groove 201 is formed on the side of the adhesive layer 2 close to the aluminum foil layer 1, and a second reserved groove 301 is formed on the side of the nylon layer 3 close to the aluminum foil layer 1;

[0022] Specifically, the adhesive layer 2 is made of polyethylene or polypropylene.

[0023] Please refer to Figure 1 , further, the nylon layer 3 is made of halogen-free flame-retardant nylon, and a plurality of anti-slip protrusions 6 are provided on the side of the nylon layer 3 away from the aluminum foil layer 1.

[0024] Please refer to Figure 1 and Figure 2 , further, both the first reserved groove 201 and the second reserved groove 301 are designed in a "rice" shape.

[0025] Please refer to Figure 1 , further, the outer side of the nylon layer 3 is also coated with a zirconium phosphate coating to improve the overall wear resistance.

[0026] Working principle: When using this flame-retardant aluminum foil composite heat-insulating film, during bending, the first reserved groove 201 and the second reserved groove 301 can be used to reduce the stretching and extrusion of the adhesive layer 2 and the nylon layer 3 itself, avoiding the appearance of gaps in the overall composite film after bending. At the same time, the design of the first reserved groove 201 and the second reserved groove 301 can make the adhesive layer 4 between the aluminum foil layer 1 and the adhesive layer 2 and the adhesive layer 5 between the aluminum foil layer 1 and the nylon layer 3 have a larger contact area, thereby improving the bonding effect. And the design of the anti-slip protrusions 6 can conveniently increase the friction coefficient of the nylon layer 3, so that after the composite film wraps an object, it will not be too smooth. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0027] The orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only a simplified description for facilitating the description of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the protection content of the present invention.

[0028] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A flame-retardant aluminum foil composite heat insulation film, comprising an aluminum foil layer (1), characterized in that: One side of the aluminum foil layer (1) is provided with an adhesive layer (2), and the other side of the aluminum foil layer (1) is provided with a nylon layer (3). The aluminum foil layer (1) and the adhesive layer (2) are bonded through an adhesive layer one (4), and the aluminum foil layer (1) and the nylon layer (3) are bonded through an adhesive layer two (5). A reserved groove one (201) is formed on the side of the adhesive layer (2) close to the aluminum foil layer (1), and a reserved groove two (301) is formed on the side of the nylon layer (3) close to the aluminum foil layer (1).

2. The flame-retardant aluminum foil composite heat insulation film according to claim 1, characterized in that: The nylon layer (3) is made of halogen-free flame-retardant nylon, and a plurality of anti-slip protrusions (6) are provided on the side of the nylon layer (3) away from the aluminum foil layer (1).

3. A flame-retardant aluminum foil composite heat insulation film according to claim 1, characterized in that: Both the reserved groove one (201) and the reserved groove two (301) are designed in a "rice" shape.

4. A flame-retardant aluminum foil composite heat insulation film according to claim 1, characterized in that: An anti-corrosion coating is also coated on the outer side of the nylon layer (3).

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