High-temperature-resistant protective film

By designing a high-temperature resistant structure, including a metal mesh layer, a polyester layer, an adhesive, and a release film, the problem of the protective film being easily damaged in high-temperature environments is solved, achieving efficient heat dissipation and stable adhesion, and improving the durability and safety of the protective film.

CN223620330UActive Publication Date: 2025-12-02DONGGUAN RONGHAN ELECTRONIC MATERIALS CO LTD
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Patent Information

Application Number
CN202423144374.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-12-02
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

Existing protective films are prone to damage or failure in high-temperature environments and fail to effectively dissipate heat, resulting in gaps or peeling between the protective film and the protected object, thus affecting the protective effect.

Method used

It adopts a high-temperature resistant structure, including a metal mesh layer, a polyester layer, an adhesive, a release film, and a restraining strip. The metal mesh layer increases the heat dissipation area, the polyester layer provides insulation and chemical stability, the adhesive ensures interlayer adhesion, the release film provides protection and isolation, and the restraining strip provides fixation and flexibility.

Benefits of technology

It improves the high-temperature resistance of the protective film, prevents deformation or damage, enhances structural stability and heat dissipation efficiency, extends service life, ensures that it does not peel or fall off in high-temperature environments, and improves safety and operability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a high-temperature-resistant protective film, which belongs to the technical field of protective films and comprises a base material and a high-temperature-resistant structure arranged on one side of the outer wall of the base material, the high-temperature-resistant structure comprises a constraint adhesive tape, a metal grid layer, a polyester layer, an adhesive, a release film and a release notch, the metal grid layer is adhered to the bottom of the outer wall of the base material, and the polyester layer is adhered to the release film. The polyester layer is adhered to the bottom of the outer wall of the metal grid layer, the adhesive is attached to the bottom of the outer wall of the polyester layer, and the release film is adhered to one side of the outer wall of the adhesive. By means of the high-temperature-resistant structure, extra protection and fixing effects are provided, the stability and durability of the whole structure are enhanced, meanwhile, the high-temperature-resistant structure possibly has certain elasticity, the metal grid layer has high strength and high-temperature-resistant performance, thermal stress in the high-temperature environment can be borne, structural deformation or damage is prevented, and meanwhile the service life of the high-temperature-resistant structure is prolonged. The design of the metal grids can increase the heat dissipation area of the structure and improve the heat dissipation efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of protective film technology, specifically relating to a high-temperature resistant protective film. Background Technology

[0002] Protective film is a transparent material widely used in various fields, typically possessing properties such as light transmittance, heat insulation, and anti-stick properties. The following is a detailed analysis of protective film: Protective film generally refers to a single or double layer of transparent material less than 1 mm thick, designed to protect the surface of the covered object from damage, contamination, or scratches. Its properties include, but are not limited to: Light transmittance: Allows light to pass through, maintaining the clarity and brightness of the covered object. Heat insulation: Reduces heat transfer to a certain extent, protecting the covered object from high temperatures. Anti-stick properties: Prevents dust, dirt, or other sticky substances from adhering to the surface of the covered object.

[0003] The following is a detailed description of the shortcomings of existing protective films: Many existing protective films, especially those using a single material or uniform structure, often lack an effective heat dissipation mechanism. When a point on the protective film surface is subjected to a high-temperature heat source, the heat cannot be quickly and evenly dispersed to the entire protective film surface or the surrounding environment, causing the temperature at that point to rise sharply, possibly exceeding the heat resistance limit of the protective film, thus causing damage or failure. This makes the film prone to softening, deformation, or even melting in high-temperature environments. In addition, the thickness and structural design of the protective film also affect its heat resistance performance. Protective films that are too thin or too thick may affect their heat resistance effect and make it difficult to constrain thermal expansion. In high-temperature environments, the protective film may expand due to the principle of thermal expansion and contraction. However, many existing protective films do not fully consider the problem of thermal expansion constraint in their design, which makes it easy for gaps or peeling to form between the protective film and the protected object under high-temperature conditions. This not only reduces the protective effect of the protective film but may also cause further damage to the protected object. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature resistant protective film, which aims to solve the problems mentioned in the background art.

[0005] A high-temperature resistant protective film, comprising,

[0006] Substrate;

[0007] A high-temperature resistant structure is disposed on one side of the outer wall of a substrate, wherein: the high-temperature resistant structure includes a restraining adhesive strip, a metal mesh layer, a polyester layer, an adhesive, a release film, and a release notch; the metal mesh layer is bonded to the bottom of the outer wall of the substrate; the polyester layer is bonded to the bottom of the outer wall of the metal mesh layer; the adhesive is attached to the bottom of the outer wall of the polyester layer; the release film is bonded to one side of the outer wall of the adhesive; the restraining adhesive strip is sleeved on the outer wall of the metal mesh layer, the polyester layer, the adhesive, and the release film; and the release notch is formed at the bottom edge of the outer wall of the restraining adhesive strip.

[0008] Furthermore, the outer wall of the constraint strip is provided with an auxiliary groove.

[0009] Furthermore, the top of the outer wall of the constraint strip is chamfered.

[0010] Furthermore, the metal mesh layer is made by imprinting and curing a metal paste using a PET film as the substrate.

[0011] Furthermore, the polyester layer has a transparency of 97%.

[0012] Furthermore, the melting point of the release film is 230-240℃.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The high-temperature resistant structure provides additional protection and fixation, enhancing the stability and durability of the entire structure. It may also have a certain degree of elasticity. The metal mesh layer has high strength and high-temperature resistance, enabling it to withstand thermal stress in high-temperature environments and prevent structural deformation or damage. In addition, the design of the metal mesh can increase the heat dissipation area of ​​the structure and improve heat dissipation efficiency. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a partial half-sectional perspective view of the present invention;

[0017] Figure 2 This is a perspective view of the constraint adhesive strip of this utility model;

[0018] Figure 3 This is an enlarged schematic diagram of A of this utility model;

[0019] Figure 4 This is a perspective view of the substrate of this utility model;

[0020] Figure 5This is an enlarged schematic diagram of utility model B.

[0021] In the diagram: 1. Substrate; 2. Restriction strip; 3. Metal mesh layer; 4. Polyester layer; 5. Adhesive; 6. Release film; 201. Release notch; 202. Auxiliary groove; 203. Chamfer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figure 1-5 The technical solution provided in this embodiment is as follows:

[0026] A high-temperature resistant protective film, comprising,

[0027] Substrate 1;

[0028] A high-temperature resistant structure is provided on one side of the outer wall of the substrate 1, wherein: the high-temperature resistant structure includes a restraining adhesive strip 2, a metal mesh layer 3, a polyester layer 4, an adhesive 5, a release film 6, and a release notch 201. The metal mesh layer 3 is bonded to the bottom of the outer wall of the substrate 1, the polyester layer 4 is bonded to the bottom of the outer wall of the metal mesh layer 3, the adhesive 5 is attached to the bottom of the outer wall of the polyester layer 4, the release film 6 is bonded to one side of the outer wall of the adhesive 5, the restraining adhesive strip 2 is sleeved on the outer wall of the metal mesh layer 3, the polyester layer 4, the adhesive 5, and the release film 6, and the release notch 201 is opened at the bottom edge of the outer wall of the restraining adhesive strip 2.

[0029] In a specific embodiment of this utility model, the high-temperature resistant structure and the restraining adhesive strip can be tightly fitted onto the outer walls of the metal mesh layer, polyester layer, adhesive, and release film, providing additional protection and fixation, enhancing the stability and durability of the entire structure. Simultaneously, it may also possess a certain degree of elasticity to adapt to substrates of different shapes and sizes, ensuring the fit and sealing of the structure. The metal mesh layer has high strength and high-temperature resistance, capable of withstanding thermal stress under high-temperature environments, preventing structural deformation or damage. Furthermore, the metal mesh design increases the heat dissipation area of ​​the structure, improving heat dissipation efficiency and further enhancing its high-temperature resistance. The polyester layer has good insulation properties and chemical stability, maintaining stable performance under high-temperature environments, preventing current leakage or chemical corrosion. In addition, polyester material also has high mechanical strength and wear resistance, resisting external impacts and abrasion, extending the service life of the structure. The adhesive plays a role in bonding the various layers of materials within the structure. The release film plays a crucial role, requiring excellent high-temperature resistance to ensure stable adhesive strength even in high-temperature environments, preventing peeling or detachment between layers. Furthermore, the adhesive should possess good chemical resistance to resist the erosion of various chemicals. The release film primarily functions as a protector and isolator in the structure, preventing contamination or failure of the adhesive due to contact with the external environment before use. It also exhibits excellent high-temperature resistance, maintaining stable performance in high-temperature environments without deformation or failure due to temperature increases. In addition, the release film possesses excellent mechanical properties and weather resistance, meeting the needs of various complex environments. The release notch design facilitates easy removal of the release film or other layers when needed, improving the operability and convenience of the structure. Simultaneously, the well-designed release notch ensures that other layers are not damaged or destroyed during removal, while also facilitating the release of residual gas from the bulge.

[0030] Specifically, the outer wall of the constraint strip 2 is provided with an auxiliary groove 202.

[0031] In a specific embodiment of this utility model, the auxiliary groove can assist in positioning.

[0032] Specifically, a chamfer 203 is provided on the top of the outer wall of the constraint strip 2.

[0033] In a specific embodiment of this utility model, the chamfer 203 can ensure both a good feel and an aesthetically pleasing appearance.

[0034] Specifically, the metal mesh layer 3 is made by imprinting and curing metal paste using PET film as the substrate.

[0035] In a specific embodiment of this utility model, PET film is selected as the substrate. PET film, namely polyethylene terephthalate film, has excellent physical and mechanical properties, electrical insulation, heat resistance and abrasion resistance, and is very suitable as a support material for metal mesh layers.

[0036] Specifically, the transparency of polyester layer 4 is 97%.

[0037] In a specific embodiment of this utility model, when the transparency of the polyester layer 4 is 97%, it has excellent visual effects: high transparency means that light can pass through the polyester layer almost without obstruction, presenting a clear and bright visual effect, which is especially important for application scenarios that require high definition and high light transmittance, such as optical equipment, displays, lighting devices, etc.

[0038] Specifically, the melting point of release film 6 is 230-240℃.

[0039] In a specific embodiment of this utility model, when the melting point of the release film 6 is 230-240℃, it has the following significant advantages: High heat resistance: A high melting point means that the release film can maintain stable physical and chemical properties at higher temperatures. In applications requiring high-temperature processing or long-term exposure to high-temperature environments, such as the manufacturing of electronic products and the production of certain components in the automotive industry, this high heat resistance ensures that the release film will not deform, melt, or lose its function due to high temperatures, thus improving product safety: In some products requiring high-temperature processing, such as batteries and circuit boards, using a high-melting-point release film can prevent safety hazards such as short circuits and fires caused by the melting of the film material, which helps to improve the overall safety and reliability of the product.

[0040] Working principle:

[0041] The high-temperature resistant structure features a restraining strip that tightly fits around the metal mesh layer, polyester layer, adhesive, and release film, providing additional protection and fixation to enhance the overall stability and durability of the structure. It may also possess some elasticity to adapt to substrates of different shapes and sizes, ensuring a snug fit and seal. The metal mesh layer boasts high strength and high-temperature resistance, capable of withstanding thermal stress in high-temperature environments, preventing structural deformation or damage. Furthermore, the metal mesh design increases the structure's heat dissipation area, improving heat dissipation efficiency and further enhancing its high-temperature resistance. The polyester layer exhibits excellent insulation and chemical stability, maintaining stable performance in high-temperature environments and preventing current leakage or chemical corrosion. Additionally, polyester material possesses high mechanical strength and abrasion resistance, resisting external impacts and wear, extending the structure's service life. The adhesive plays a crucial role in bonding the various layers within the structure; it requires… The release film must possess excellent high-temperature resistance to ensure stable adhesive strength under high-temperature conditions and prevent peeling or detachment between layers. Furthermore, the adhesive should have good chemical resistance to resist the erosion of various chemicals. The release film primarily serves a protective and isolating function in the structure, preventing contamination or failure of the adhesive due to contact with the external environment before use. Simultaneously, the release film must have good high-temperature resistance, maintaining stable performance under high-temperature conditions without deformation or failure due to temperature increases. In addition, the release film should possess excellent mechanical properties and weather resistance to meet the needs of various complex environments. The release notch design facilitates easy removal of the release film or other layers when needed, improving the operability and convenience of the structure. At the same time, the reasonable design of the release notch ensures that other layers are not damaged or destroyed during removal, while also facilitating the discharge of residual gas from the bulge.

[0042] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-temperature resistant protective film, characterized in that, include, Substrate (1); A high-temperature resistant structure is provided on one side of the outer wall of a substrate (1), wherein: the high-temperature resistant structure includes a restraining adhesive strip (2), a metal mesh layer (3), a polyester layer (4), an adhesive (5), a release film (6), and a release notch (201). The metal mesh layer (3) is bonded to the bottom of the outer wall of the substrate (1). The polyester layer (4) is bonded to the bottom of the outer wall of the metal mesh layer (3). The adhesive (5) is attached to the bottom of the outer wall of the polyester layer (4). The release film (6) is bonded to one side of the outer wall of the adhesive (5). The restraining adhesive strip (2) is sleeved on the outer wall of the metal mesh layer (3), the polyester layer (4), the adhesive (5), and the release film (6). The release notch (201) is opened at the bottom edge of the outer wall of the restraining adhesive strip (2).

2. The high-temperature resistant protective film according to claim 1, characterized in that, The outer wall of the constraint strip (2) is provided with an auxiliary groove (202).

3. The high-temperature resistant protective film according to claim 2, characterized in that, The top of the outer wall of the constraint strip (2) is chamfered (203).

4. The high-temperature resistant protective film according to claim 3, characterized in that, The metal mesh layer (3) is made by imprinting and curing metal paste with PET film as substrate.

5. The high-temperature resistant protective film according to claim 4, characterized in that, The polyester layer (4) has a transparency of 97%.

6. The high-temperature resistant protective film according to claim 5, characterized in that, The release film (6) has a melting point of 230-240℃.