Aluminum foil composite woven membrane

Abstract

The utility model discloses an aluminum foil composite woven membrane which comprises the following parts: an aluminum foil layer serving as a main body moisture-proof heat-insulating layer of the composite membrane; the braid layer is used for improving the structural strength and tearing strength of the whole membrane, and functional fibers are introduced to improve the thermal stability; the film layer is connected with the aluminum foil layer through a special hot melt adhesive, so that the layering risk between the aluminum foil layer and the film layer is reduced; the concave-convex texture layer covers the outer side of the film layer and is provided with a specially designed concave-convex structure to increase the friction force of the surface of the composite film, and an optimized high-density cross weaving mode is adopted, so that the contact among wires is tighter, the external acting force can be better dispersed, the possibility of local damage is reduced, and the service life of the composite film is prolonged. A bonding process between an aluminum foil layer and a film layer is improved, and a high-performance hot melt adhesive which is specially developed and high in adaptability is selected, so that the possible layering phenomenon is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of aluminum foil composite woven film technology, and in particular to an aluminum foil composite woven film. Background Technology

[0002] A type of aluminum foil composite woven film is a high-performance material made by combining aluminum foil layers with films of different materials through weaving technology. This material has good barrier properties and physical strength, and is widely used in packaging, electronics and construction and other fields.

[0003] However, several technical challenges remain to be addressed in practical applications. First, how to improve the tightness of the braided structure to enhance tear resistance; second, how to optimize the bonding process between the aluminum foil layer and the film layer to reduce the risk of delamination; third, how to design special textures or uneven structures to increase the friction on the composite film surface and ensure its stability in different environments; furthermore, how to adjust the braiding angle and density to improve the overall toughness of the material, making it more durable and reliable; and finally, how to introduce functional fibers into the braided layer to improve the material's thermal stability and ensure excellent performance even at high temperatures. These issues are key to further improving the performance of aluminum foil composite braided films. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing an aluminum foil composite woven film.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An aluminum foil composite woven film includes an aluminum foil layer, a woven layer connected to the bottom of the aluminum foil layer, a film layer disposed above the aluminum foil layer, and an uneven textured layer covering the outer side of the film layer.

[0007] Preferably, the temperature range required for bonding the aluminum foil layer and the film layer is 120°C to 180°C, and the pressure range is 1MPa to 3MPa.

[0008] Preferably, a polymeric adhesive is provided between the aluminum foil layer and the film layer.

[0009] Preferably, the surface of the textured layer has an irregular uneven shape.

[0010] Preferably, the weaving angle of the braided layer is 45 degrees.

[0011] Preferably, the braided layer has a braiding density of 150 strands per square centimeter.

[0012] Preferably, the thickness of the film layer is increased to 50 micrometers.

[0013] Preferably, the textured layer is designed as a diamond-shaped grid, with a raised point at each node.

[0014] This utility model has the following advantages compared with the prior art:

[0015] 1. This utility model adopts an optimized high-density cross-weaving method. This weaving method not only makes the contact between the wires tighter, but also better disperses external forces and reduces the possibility of local damage. The bonding process between the aluminum foil layer and the film layer has been improved. A specially developed and highly adaptable high-performance hot melt adhesive is selected. This type of adhesive can quickly cure and firmly adhere to the surface of different materials in a wide range of working environments, greatly reducing the possible delamination phenomenon.

[0016] 2. This utility model achieves a significant improvement in surface friction characteristics through precise simulation of the concave and convex texture. The addition of this texture helps to improve the user experience and makes the final product more adaptable to complex and ever-changing working environments, thereby enhancing overall reliability.

[0017] 3. This utility model incorporates an appropriate amount of pre-treated functional short-cut fibers into the woven layer. These specially treated fibers can exhibit stable physical properties at high temperatures, thereby giving the composite fabric better high-temperature resistance and ensuring that it maintains a very high performance level even under harsh conditions. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an aluminum foil composite woven film proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the textured layer of an aluminum foil composite woven film proposed in this utility model.

[0020] In the diagram: 1. Aluminum foil layer; 2. Braided layer; 3. Film layer; 4. Textured layer; 5. Polymer adhesive. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Reference Figures 1 to 2 An aluminum foil composite woven film includes an aluminum foil layer 1, which serves as the main moisture-proof and heat-insulating layer of the composite film. The aluminum foil layer 1, as the main part, is mainly used to provide good moisture-proof and heat-insulating properties. This aluminum foil layer 1 is located on the inner side of the composite material. Its excellent metallic material not only has the function of reflecting heat, but also can block water vapor from penetrating, protect the inner layer from the influence of external moisture, thereby extending the service life of the entire material.

[0024] A braided layer 2 is connected to the bottom of the aluminum foil layer 1 to improve the overall structural strength and tear strength of the film and to introduce functional fibers to increase thermal stability. The braided layer 2 is set on the outside of the aluminum foil layer 1 and is woven from high-strength fibers. It can effectively improve the overall structural strength and tear strength of the film. This layer also introduces functional fiber components to enhance its thermal stability under high temperature conditions. The special functional fibers used in the braided layer 2 can improve the physical properties of the material under heat conditions, so that the material can maintain its original excellent properties under extreme temperature conditions.

[0025] A film layer 3 is provided above the aluminum foil layer 1 and is connected to the aluminum foil layer 1 by a special hot melt adhesive. This reduces the risk of delamination between the aluminum foil layer 1 and the film layer 3. This method can not only tightly bond the two together, greatly reducing the risk of delamination due to environmental changes, but also ensure the stability and uniformity of each layer in the entire composite structure. In addition, multiple factors need to be considered when selecting and using a suitable hot melt adhesive, including temperature, humidity and other physical properties, in order to achieve the best bonding effect.

[0026] The outer side of the membrane layer 3 is covered with a textured layer 4, which has a specially designed textured structure to increase the friction of the composite membrane surface. The main function of this layer is to significantly increase the friction of the fabric surface and ensure that it remains stable when used in different situations. The design of the textured structure is not randomly generated, but carefully calculated according to specific needs, and can be made by pressing or other processes.

[0027] The bonding between aluminum foil layer 1 and film layer 3 requires a temperature range of 120°C to 180°C and a pressure range of 1MPa to 3MPa to reduce the risk of delamination. This pressing method ensures that the layers are tightly bonded, making it particularly suitable for applications that need to withstand complex environmental conditions, such as packaging, thermal insulation materials, or protective equipment. In order to further improve the overall performance and effectiveness of the material, the bonding between aluminum foil layer 1 and film layer 3 not only relies on physical pressing but also requires the use of special adhesives.

[0028] A polymer adhesive 5 is added between the aluminum foil layer 1 and the film layer 3. This adhesive can effectively enhance the bonding strength between the two layers and optimize the bonding process. The addition of the adhesive not only effectively improves the overall durability and reliability of the material, but also improves the operability in the production and processing process.

[0029] The surface of the textured layer 4 has an irregular uneven shape to increase the surface friction of the composite film. This can optimize the physical properties of the composite film while maintaining its overall performance, making it more suitable for applications with high anti-slip requirements. The textured structure is formed on the outside of the film layer 3 through a fine mold pressing or coating process, and is tightly bonded to the film layer 3 to enhance the integrity of the composite film.

[0030] Adjusting the weaving angle to 45 degrees increases the frequency of fiber crossings, making the weaving structure tighter and enhancing tear resistance. By setting the weaving angle to 45 degrees, not only are the number of crossing points increased, but the contact and friction between adjacent fibers are also improved, making the entire structure more robust and stable. This improvement enables the woven layer 2 to exhibit stronger durability and resistance to damage when facing various mechanical stresses, especially under complex environmental conditions where it can better demonstrate its excellent mechanical properties.

[0031] The weaving density is 150 strands per square centimeter, which increases the overall toughness of the material and makes the distribution of the woven layer 2 in the composite material more compact and uniform, improving the mechanical properties and structural stability of the woven layer 2. In addition, the overall wear resistance of the woven fabric is also improved, and it can maintain its physical properties in more complex environments. Due to the higher weaving density, the contact between fibers is closer, thereby improving the tensile strength of the composite membrane.

[0032] The thickness of film layer 3 is increased to 50 micrometers, which enhances the overall durability and mechanical properties of the woven membrane. The significant increase in thickness helps to reduce the probability of deformation and damage of film layer 3 under external force, enabling it to be more stably connected to aluminum foil layer 1 through a special hot melt adhesive. The reinforcement of film layer 3 ensures the reliability and stability of the composite material during long-term use, which makes the overall composite woven membrane more practical and performs better under extreme conditions.

[0033] The textured layer 4 is designed as a diamond grid, with raised points at each node, which further increases the coefficient of friction and improves its stability and adhesion during use. By adopting this diamond grid design, the outer surface area of ​​the composite film is increased, enhancing the friction effect with the contact surface, making it especially suitable for applications requiring high friction.

[0034] The specific working principle of this utility model is as follows:

[0035] In actual operation, when this device is used, the aluminum foil layer 1, as the main moisture-proof and heat-insulating layer, plays its first role, providing key barrier and heat insulation performance. Then, the woven layer 2 enhances the structural strength and tear strength of the entire membrane, and improves thermal stability by introducing functional fibers. The membrane layer 3 and the aluminum foil layer 1 are connected by a special hot melt adhesive, thereby reducing the risk of delamination and ensuring a strong bond between the two layers. The outermost layer is covered with a textured layer 4, which is designed with a specific textured structure to increase the friction of the composite membrane surface and improve grip. The synergistic work of each layer enables this coated aluminum woven fabric to maintain excellent performance in a variety of complex environments, effectively preventing the transfer of moisture and heat, while also possessing good mechanical strength and weather resistance.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An aluminium foil composite woven film comprising an aluminium foil layer (1), characterised in that, The aluminum foil layer (1) is connected with a braided layer (2) at the bottom, and a film layer (3) is arranged above the aluminum foil layer (1), the outer side of the film layer (3) is covered with a concave-convex texture layer (4), the concave-convex texture layer (4) is designed as a rhombic grid shape, and a convex point is formed at each node. A high polymer adhesive (5) is arranged between the aluminum foil layer (1) and the film layer (3). The braided layer (2) comprises functional fibers, the braiding angle of the braided layer (2) is 45 degrees, and the braiding density of the braided layer (2) is 150 per square centimeter.

2. The aluminum foil composite braided film according to claim 1, characterized in that: The concave-convex texture layer (4) has irregular concave-convex shapes on the surface.

3. The aluminum foil composite braided film according to claim 1, wherein: The thickness of the film layer (3) is 50 microns.

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