A high-heat-resistant hot-melt adhesive film

Abstract

The utility model provides a high-heat resistant hot melt adhesive film, which relates to the technical field of hot melt adhesive films, including a substrate layer, a high-temperature resistant layer 1 is fixedly installed on the surface of the substrate layer, a high-temperature resistant layer 2 is fixedly installed on the side of the high-temperature resistant layer 1 away from the substrate layer, a high-temperature resistant layer 3 is fixedly installed on the side of the high-temperature resistant layer 2 away from the high-temperature resistant layer 1, a nano layer is fixedly installed on the side of the high-temperature resistant layer 3 away from the high-temperature resistant layer 2, a fiber layer is fixedly installed on the side of the nano layer away from the high-temperature resistant layer 3, the high-temperature resistant layer 1 is made of polyimide, and the high-temperature resistant layer 2 is made of polyether ketone. In the utility model, by providing structures such as the high-temperature resistant layer 1, the high-temperature resistant layer 2, the high-temperature resistant layer 3, the nano layer and the fiber layer, the hot melt adhesive film has the advantages of high temperature resistance, strong adhesion, good mechanical properties, etc., which effectively avoids the decrease in the adhesive performance of the hot melt adhesive film in a high-temperature environment, and improves the performance and reliability of the product.

Description

Technical Field

[0001] The utility model relates to the technical field of hot melt adhesive films, in particular to a high-heat resistant hot melt adhesive film. Background Art

[0002] Hot melt adhesive film is a thermoplastic adhesive, which is usually used for various bonding and sealing applications. Publication No. CN207760269U discloses a hot melt adhesive film, including a film body made of hot melt adhesive and an isolation layer pasted on the surface of the film body; and, an overflow hole is provided on the isolation layer to allow the film body to flow to the outer surface of the isolation layer. Because the hot melt adhesive film is no longer provided with a release paper, there is no need to tear off the release paper during use, which simplifies the operation process and facilitates use. Because the most complicated step of tearing off the release paper is omitted when using the hot melt adhesive film, the aforementioned hot melt adhesive film can facilitate the mechanical automation of the bonding operation. However, the hot melt adhesive film is not provided with a high-heat-resistant material, which results in a decrease in the bonding performance of the hot melt adhesive film in a high-temperature environment, making it impossible to effectively bond or seal, thereby affecting product quality and process stability. The hot melt adhesive film still has shortcomings and needs to be improved. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0004] The utility model adopts the following technical scheme: a high-heat resistant hot-melt adhesive film, comprising a substrate layer, a high-temperature resistant layer one is fixedly installed on the surface of the substrate layer, a high-temperature resistant layer two is fixedly installed on the side of the high-temperature resistant layer one away from the substrate layer, a high-temperature resistant layer three is fixedly installed on the side of the high-temperature resistant layer two away from the high-temperature resistant layer one, a nano layer is fixedly installed on the side of the high-temperature resistant layer three away from the high-temperature resistant layer two, and a fiber layer is fixedly installed on the side of the nano layer away from the high-temperature resistant layer three.

[0005] Preferably, the first high temperature resistant layer is made of polyimide, and the second high temperature resistant layer is made of polyetherketone. Here, the first high temperature resistant layer of polyimide keeps the cross-linked structure between the polyimide molecular chains stable at high temperatures, so that the hot melt adhesive film can maintain structural stability and adhesion performance under high temperature environments. The second high temperature resistant layer of polyetherketone keeps good structural stability and mechanical properties at high temperatures, providing the hot melt adhesive film with excellent high temperature resistance.

[0006] Preferably, the high temperature resistant layer 3 is made of polytetrafluoroethylene. Here, the high temperature resistant layer 3 made of polytetrafluoroethylene is not susceptible to chemical corrosion and thermal decomposition at high temperatures, providing the hot melt adhesive film with excellent high temperature resistance and chemical resistance.

[0007] Preferably, the nano layer is made of nano material, and the fiber layer is made of aramid fiber material. Here, the nano material nano layer can interact with polymer molecules to enhance the mechanical properties, thermal conductivity and heat resistance of the hot melt adhesive film, and the fiber layer of aramid fiber material has excellent high temperature resistance and wear resistance, thereby enhancing the mechanical strength and durability of the hot melt adhesive film.

[0008] Preferably, a wear-resistant layer is fixedly installed on the side of the fiber layer away from the nano layer, and a surface protection layer is fixedly installed on the side of the wear-resistant layer away from the fiber layer. Here, the protective effect of the hot melt adhesive film is improved by the use of the wear-resistant layer and the surface protection layer.

[0009] Preferably, the wear-resistant layer and the surface protection layer are both made of fluororubber. Here, the wear-resistant layer and the surface protection layer of fluororubber enable the hot melt adhesive film to maintain a long service life under friction and wear environment.

[0010] Compared with the prior art, the advantages and positive effects of the utility model are:

[0011] 1. In the utility model, by setting up the structures of high temperature resistant layer 1, high temperature resistant layer 2, high temperature resistant layer 3, nano layer and fiber layer, the hot melt adhesive film has the advantages of high temperature resistance, strong adhesion, good mechanical properties, etc., which effectively avoids the decrease of the adhesive performance of the hot melt adhesive film in a high temperature environment and improves the performance and reliability of the product.

[0012] 2. In the utility model, by providing a wear-resistant layer and a surface protection layer, the hot melt adhesive film can maintain a long service life in a friction and wear environment, thereby improving the reliability of the hot melt adhesive film. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model provides a schematic diagram of the overall structure of a high-heat-resistant hot-melt adhesive film;

[0014] Figure 2 The utility model proposes a high-heat resistant hot melt adhesive film Figure 1 Enlarged view of point A in the middle.

[0015] Legend:

[0016] 1. Base material layer; 2. High temperature resistant layer one; 3. High temperature resistant layer two; 4. High temperature resistant layer three; 5. Nano layer; 6. Fiber layer; 7. Wear-resistant layer; 8. Surface protection layer. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0019] Embodiment 1

[0020] See also Figure 1-2 The utility model provides a technical solution: a high-heat resistant hot melt adhesive film, comprising a substrate layer 1, a high-temperature resistant layer 1 2 is fixedly installed on the surface of the substrate layer 1, a high-temperature resistant layer 2 3 is fixedly installed on the side of the high-temperature resistant layer 1 2 away from the substrate layer 1, a high-temperature resistant layer 3 4 is fixedly installed on the side of the high-temperature resistant layer 2 3 away from the high-temperature resistant layer 1 2, a nano layer 5 is fixedly installed on the side of the high-temperature resistant layer 3 4 away from the high-temperature resistant layer 2 3, and a fiber layer 6 is fixedly installed on the side of the nano layer 5 away from the high-temperature resistant layer 3 4. By setting the structures of the high-temperature resistant layer 1 2, the high-temperature resistant layer 2 3, the high-temperature resistant layer 3 4, the nano layer 5 and the fiber layer 6, the hot melt adhesive film has the advantages of high temperature resistance, strong adhesion, good mechanical properties, etc., effectively avoiding the decrease of the adhesive performance of the hot melt adhesive film in a high-temperature environment, and improving the performance and reliability of the product.

[0021] See also Figure 1-2 The high temperature resistant layer 1 2 is made of polyimide. The high temperature resistant layer 1 2 made of polyimide can keep the cross-linking structure between the polyimide molecular chains stable at high temperature, so that the hot melt adhesive film can maintain structural stability and adhesion performance in a high temperature environment. The high temperature resistant layer 2 3 is made of polyether ketone. The high temperature resistant layer 2 3 made of polyether ketone can maintain good structural stability and mechanical properties at high temperature, providing the hot melt adhesive film with excellent high temperature resistance. The high temperature resistant layer 3 4 is made of polytetrafluoroethylene. The high temperature resistant layer 3 4 made of polytetrafluoroethylene can prevent chemical corrosion and thermal decomposition at high temperature, providing the hot melt adhesive film with excellent high temperature resistance and chemical resistance. The nano layer 5 is made of nano material. The nano layer 5 made of nano material can interact with polymer molecules to enhance the mechanical properties, thermal conductivity and heat resistance of the hot melt adhesive film. The fiber layer 6 is made of aramid fiber. The fiber layer 6 made of aramid fiber has excellent high temperature resistance and wear resistance, enhancing the mechanical strength and durability of the hot melt adhesive film.

[0022] Embodiment 2

[0023] See also Figure 1-2A wear-resistant layer 7 is fixedly installed on the side of the fiber layer 6 away from the nano layer 5, and a surface protection layer 8 is fixedly installed on the side of the wear-resistant layer 7 away from the fiber layer 6. The protective effect of the hot-melt adhesive film is improved by the coordinated use of the wear-resistant layer 7 and the surface protection layer 8. Both the wear-resistant layer 7 and the surface protection layer 8 are made of fluororubber. Through the wear-resistant layer 7 and the surface protection layer 8 made of fluororubber, the hot-melt adhesive film can maintain a long service life under friction and wear environments.

[0024] Working principle: When using the hot melt adhesive film, the high temperature resistant layer 1 2 made of polyimide material can keep the cross-linking structure between the polyimide molecular chains stable at high temperatures, so that the hot melt adhesive film can maintain structural stability and adhesion performance in a high temperature environment. The high temperature resistant layer 2 3 made of polyether ketone material can still maintain good structural stability and mechanical properties at high temperatures, providing the hot melt adhesive film with excellent high temperature resistance. The high temperature resistant layer 3 4 made of polytetrafluoroethylene material makes it less susceptible to chemical corrosion and thermal decomposition at high temperatures, providing the hot melt adhesive film with excellent high temperature resistance and chemical resistance. The nano material layer 5 can interact with polymer molecules to enhance the mechanical properties, thermal conductivity and heat resistance of the hot melt adhesive film. The fiber layer 6 made of aramid fiber material has excellent high temperature resistance and wear resistance, enhancing the mechanical strength and durability of the hot melt adhesive film. At the same time, the wear-resistant layer 7 and surface protection layer 8 made of fluororubber material enable the hot melt adhesive film to maintain a long service life under friction and wear environments.

[0025] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A high-heat-resistant hot-melt adhesive film, comprising a substrate layer (1), characterized in that: A high temperature resistant layer 1 (2) is fixedly mounted on the surface of the substrate layer (1); a high temperature resistant layer 2 (3) is fixedly mounted on the side of the high temperature resistant layer 1 (2) away from the substrate layer (1); a high temperature resistant layer 3 (4) is fixedly mounted on the side of the high temperature resistant layer 2 (3) away from the high temperature resistant layer 1 (2); a nano layer (5) is fixedly mounted on the side of the high temperature resistant layer 3 (4) away from the high temperature resistant layer 2 (3); and a fiber layer (6) is fixedly mounted on the side of the nano layer (5) away from the high temperature resistant layer 3 (4).

2. The high-heat-resistant hot-melt adhesive film according to claim 1, characterized in that: The high temperature resistant layer 1 (2) is made of polyimide material, and the high temperature resistant layer 2 (3) is made of polyether ketone material.

3. The high-heat-resistant hot-melt adhesive film according to claim 1, characterized in that: The high temperature resistant layer three (4) is made of polytetrafluoroethylene.

4. The high-heat-resistant hot-melt adhesive film according to claim 1, characterized in that: The nano layer (5) is made of nano material, and the fiber layer (6) is made of aramid fiber material.

5. The high-heat-resistant hot-melt adhesive film according to claim 1, characterized in that: A wear-resistant layer (7) is fixedly mounted on the side of the fiber layer (6) away from the nano layer (5), and a surface protection layer (8) is fixedly mounted on the side of the wear-resistant layer (7) away from the fiber layer (6).

6. The high-heat-resistant hot-melt adhesive film according to claim 5, characterized in that: The wear-resistant layer (7) and the surface protection layer (8) are both made of fluororubber.

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