High-temperature-resistant release film

Abstract

The utility model discloses a high-temperature-resistant release film and relates to the field of release films. The release film comprises a release film body, the release film body is of a multi-layer structure, the multi-layer structure comprises a bottom layer, a reinforcing layer, an isolation layer, a fireproof layer and an outer film layer from bottom to top, the isolation layer, liquid bags, bag grooves and liquid bags are arranged, the liquid bags arranged on the top of the isolation layer contain the liquid bags, and the liquid bags are filled with silicone oil, so that the liquid bags are filled with silicone oil; when the release film is subjected to high temperature, especially a close-range concentrated fire source, the liquid bag can be rapidly heated to expand and broken, the whole liquid bag is rapidly filled with the isolation liquid, a temporary thermal isolation barrier is formed in the process, the thermal isolation barrier can effectively slow down the speed of heat transferring into the release film, and the heat transfer efficiency is improved. The heat is prevented from being further transferred into the release film, and the problem that the existing high-temperature-resistant release film is easy to burn through when being subjected to a concentrated fire source in a short distance, so that the protection effect is lost is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of release film, concretely to a high temperature resistant release film. BACKGROUND

[0002] The high temperature resistant release film is a kind of release film material specially designed for high temperature environment, it belongs to the category of plastic release film, and has excellent high temperature resistance. Traditionally, the release film with temperature resistance reaching 200 DEG C or more and long-term working temperature reaching H-grade 180 DEG C or more can be called high temperature resistant release film.

[0003] However, the existing high temperature resistant release film has some problems in use, such as although the high temperature resistant release film has the effect of high temperature resistance, but if it is close to concentrated fire source, it is easy to cause the high temperature resistant release film to be burnt through, thereby losing the protection effect. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model aims at providing a high temperature resistant release film to solve the technical problem that the existing high temperature resistant release film is easy to be burnt through when close to concentrated fire source, thereby losing the protection effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high temperature resistant release film, comprising a release film, the release film is arranged in a multilayer structure, and the multilayer structure is respectively bottom layer, reinforcing layer, isolation layer, fire-resistant layer and outer membrane layer from bottom to top, the top of the isolation layer is provided with a plurality of liquid bags, a plurality of liquid bags are equidistantly and uniformly arranged, a bag groove is formed in a plurality of liquid bags, and a liquid capsule is arranged in a plurality of bag grooves, and the inside of the liquid capsule is provided with isolation liquid.

[0006] By adopting the above technical scheme, when the release film is subjected to high temperature, especially close to concentrated fire source, the liquid capsule will rapidly expand and break due to heat, and the isolation liquid will rapidly fill the whole liquid bag. This process forms a temporary heat isolation barrier.

[0007] Further, the material of the liquid bag is polyimide, the material of the liquid capsule is thermosetting resin, and the material of the isolation liquid is silicon oil.

[0008] By adopting the above technical scheme, the liquid bag is made of polyimide material, which has excellent high temperature resistance and chemical stability; the liquid capsule is made of thermosetting resin material, which can maintain the shape and stability of the liquid capsule.

[0009] Further, the two sides of the release film are provided with anti-deformation edges, the anti-deformation edge comprises first half edge and second half edge, and the first half edge and the second half edge are arranged on the two sides of the bottom layer and the outer membrane layer respectively.

[0010] By adopting the technical scheme, deformation or warping of the release film due to external force or temperature change during processing, transportation and use is effectively prevented.

[0011] Further, the first half and the second half are pressure-bonded, and the material of the deformation-preventing edge is polytetrafluoroethylene.

[0012] By adopting the technical scheme, the polytetrafluoroethylene material is selected to make the deformation-preventing edge have excellent high-temperature resistance, corrosion resistance and wear resistance, and the overall stability of the release film is further enhanced.

[0013] Further, the material of the reinforcing layer is a carbon fiber layer, and the material of the fire-resistant layer is a thermoplastic polyester elastomer.

[0014] By adopting the technical scheme, the reinforcing layer adopts the carbon fiber layer, has extremely high strength and rigidity, and enhances the tensile resistance and compression resistance of the release film.

[0015] Further, the surface of the outer film layer and the bottom layer is coated with a ceramic-based coating.

[0016] By adopting the technical scheme, the coating has excellent high-temperature resistance, wear resistance and corrosion resistance, and the overall durability and reliability of the release film are further enhanced.

[0017] In summary, the utility model mainly has the following beneficial effects:

[0018] 1. The utility model discloses a heat-resistant release film, which comprises a bottom layer, a reinforcing layer, an outer film layer and a deformation-preventing edge.

[0019] 2. The utility model discloses a heat-resistant release film, which comprises a bottom layer, a reinforcing layer, an outer film layer and a deformation-preventing edge. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0022] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0023] Figure 4 This is a partial three-dimensional structural diagram of the isolation layer of this utility model.

[0024] In the diagram: 1. Release film; 101. Outer film layer; 102. Fire-resistant layer; 103. Isolation layer; 1031. Liquid bag; 1032. Bag groove; 1033. Liquid bladder; 104. Reinforcing layer; 105. Bottom layer; 2. Deformation-resistant edge; 201. First half; 202. Second half. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] Example 1:

[0027] A high-temperature resistant release film, such as Figures 1-4 As shown, the release film 1 has a multi-layered structure, consisting of a bottom layer 105, a reinforcing layer 104, an isolation layer 103, a fire-resistant layer 102, and an outer membrane layer 101 from bottom to top. Multiple liquid bags 1031 are evenly spaced on top of the isolation layer 103, each containing a groove 1032 and a liquid bladder 1033 filled with an isolation liquid. This multi-layered design, combined with the liquid bags 1031 and bladders 1033 of the isolation layer, effectively improves the high-temperature resistance of the release film. When exposed to high temperatures or a fire source, the rupture of the liquid bladders 1033 and the diffusion of the isolation liquid rapidly form a thermal insulation layer, protecting the release film and underlying materials from high-temperature damage, extending the service life of the release film, and improving safety.

[0028] See Figure 1 , Figure 2 , Figure 3 , Figure 4, the material of the liquid bag 1031 is polyimide, the material of the liquid bag 1033 is thermosetting resin, and the material of the isolation liquid is silicone oil. The polyimide material of the liquid bag 1031 has excellent high-temperature resistance and chemical stability, and can withstand high-temperature environment without deformation or damage. The thermosetting resin material of the liquid bag 1033 can maintain shape stability, ensuring uniform expansion and rupture when heated. Silicone oil as an isolation liquid has good lubricity and thermal stability, which can quickly form an effective thermal isolation layer after the liquid bag 1033 is broken, further improving the high-temperature resistance of the release film.

[0029] Example two:

[0030] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , the deformation prevention edge 2 is provided on both sides of the release film 1, and the deformation prevention edge 2 includes a first half edge 201 and a second half edge 202, and the first half edge 201 and the second half edge 202 are respectively arranged on both sides of the bottom layer 105 and the outer film layer 101. The design of the deformation prevention edge 2 effectively enhances the edge stability of the release film 1. The first half edge 201 and the second half edge 202 are respectively arranged on both sides of the bottom layer 105 and the outer film layer 101, which can prevent the release film 1 from deforming or warping due to external force or temperature change during processing, transportation or use, and ensure the flatness and use effect of the release film.

[0031] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , the first half edge 201 and the second half edge 202 are pressure-bonded, and the material of the deformation prevention edge 2 is polytetrafluoroethylene. The design of pressure-bonding the first half edge 201 and the second half edge 202 makes the deformation prevention edge 2 more firm and stable, which can more effectively resist external force impact and temperature change. The deformation prevention edge 2 made of polytetrafluoroethylene has excellent high-temperature resistance, corrosion resistance and wear resistance, further enhancing the overall durability and reliability of the release film 1.

[0032] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , the material of the reinforcing layer 104 is a carbon fiber layer, and the material of the fire-resistant layer 102 is a thermoplastic polyester elastomer. The carbon fiber layer as the reinforcing layer 104 has extremely high strength and stiffness, which can significantly enhance the tensile and compression resistance of the release film 1, making it more stable when facing external force impact. The thermoplastic polyester elastomer material of the fire-resistant layer 102 has good fire resistance and elasticity, which can maintain shape stability in high-temperature environment, while providing certain buffering effect, further improving the high-temperature resistance of the release film.

[0033] Referring toFigure 1 、 Figure 2 、 Figure 3 、 Figure 4 Figure 1 Figure 2 Figure 3 Figure 4 The surface of the outer film layer 101 and the surface of the bottom layer 105 are plated with a ceramic-based coating, which has excellent high-temperature resistance, wear resistance and corrosion resistance. Plating the ceramic-based coating on the surface of the outer film layer 101 and the bottom layer 105 can further enhance the overall durability and reliability of the release film 1, making it more stable in the face of harsh environments such as high temperature, friction and corrosion, and prolonging the service life of the release film.

[0034] The implementation principle of the embodiment is: first, before using the high-temperature-resistant release film, clean the surface of the protected material to remove grease, dirt or impurities, ensure that the surface is clean and flat, and lay the high-temperature-resistant release film on the protected material, at the same time, use rollers, hot air guns, etc. to adhere the release film 1;

[0035] During the use of the release film 1, if nothing happens, the isolation layer and the liquid bag, the liquid bag and the isolation liquid on it remain in a stable state, do not react chemically, and do not easily change their physical properties due to temperature changes. Once exposed to high temperature for a long time at a fixed point, the liquid bag 1031 in the liquid bag 1033 will break, and the isolation liquid will be filled in the liquid bag, playing the role of isolating the heat source;

[0036] In addition, during the use of the isolation film, the anti-deformation edge can maintain its high-temperature-resistant performance and not soften or deform due to temperature changes, ensuring the overall flatness and use effect of the release film.

[0037] Although the embodiments of the present application have been shown and described, the specific embodiments are only an explanation of the present application, and are not a limitation of the application. The specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A high-temperature resistant release film, characterized in that: The release film (1) is provided in a multi-layer structure, and the multi-layer structure from bottom to top consists of a bottom layer (105), a reinforcing layer (104), an isolation layer (103), a fire-resistant layer (102), and an outer membrane layer (101). The top of the isolation layer (103) is provided with multiple liquid bags (1031), which are evenly spaced. Each liquid bag (1031) has a bag groove (1032) and a liquid bladder (1033) is provided in each bag groove (1032). The liquid bladder (1033) is provided with an isolation liquid.

2. The high-temperature resistant release film according to claim 1, characterized in that: The liquid bag (1031) is made of polyimide, the liquid bladder (1033) is made of thermosetting resin, and the isolation liquid is made of silicone oil.

3. The high-temperature resistant release film according to claim 1, characterized in that: The release film (1) has anti-deformation edges (2) on both sides. The anti-deformation edges (2) include a first half (201) and a second half (202), and the first half (201) and the second half (202) are respectively disposed on both sides of the bottom layer (105) and the outer film layer (101).

4. The high-temperature resistant release film according to claim 3, characterized in that: The first half (201) and the second half (202) are pressed together, and the anti-deformation edge (2) is made of polytetrafluoroethylene.

5. The high-temperature resistant release film according to claim 1, characterized in that: The reinforcing layer (104) is made of carbon fiber, and the fire-resistant layer (102) is made of thermoplastic polyester elastomer.

6. The high-temperature resistant release film according to claim 1, characterized in that: The outer film layer (101) and the bottom layer (105) are both coated with a ceramic base coating.

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