High-temperature adhesive tape release film
By designing multi-layer structures in high-temperature tape release films, including voltage-resistant polyimide films, polyphenylene sulfide films and glass fiber cloth double-sided tapes, traditional release films are solved by designing multi-layer structures in high temperatures, including materials such as voltage-resistant polyimide films, polyphenylene sulfide films and glass fiber cloth double-sided tapes, the deformation and flame retardant of traditional release films at high temperatures are solved. The problem of insufficient performance has achieved the improvement of high-temperature compression resistance and flame retardant performance, and improved productivity and safety.
Patent Information
- Application Number
- CN202420101690.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-15
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-01-15
AI Technical Summary
Traditional release films have poor heat resistance in the high-temperature extrusion or stamping die cutting process of high-temperature tape, which is prone to deformation or damage, and have insufficient flame retardancy, which affects production yield and safety.
A high-temperature tape release film is designed, including a bearing layer, an anti-static protective layer, a silicone oil layer, a surface treatment layer, an upper pressure resistant layer, an upper bonding layer, a lower pressure resistant layer and a fire resistant layer, and is designed by preferred materials and structures. Improve high temperature resistance and flame retardant properties, such as using materials such as voltage-resistant polyimide film, polyphenylene sulfide film and glass fiber cloth double-sided tape to form a multi-layer structure.
It effectively improves high-temperature compression resistance, prevents deformation and damage, enhances flame retardancy and fire resistance, and improves production yield and product safety.
Smart Images
Figure CN222246466U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of release films, in particular to a high-temperature adhesive tape release film. Background Art
[0002] The release film is usually made by plasma treatment, fluorine coating, or silicone release agent coating on the surface of the plastic film, such as PET, PE, OPP, etc.; it allows it to exhibit extremely light and stable release force for various organic pressure-sensitive adhesives (such as hot melt adhesive, acrylic adhesive and silicone pressure-sensitive adhesive).
[0003] High temperature tape is an adhesive tape used in high temperature working environment. It is mainly used in the electronics industry. Its temperature resistance is usually between 120 and 260 degrees. It is often used for spray painting, paint leather processing, coating masking, fixing in electronic parts manufacturing process, printed circuit boards and high temperature processing masking.
[0004] High temperature tapes include KAPTON high temperature tape, Teflon high temperature tape, high temperature masking tape, PET green high temperature tape, high temperature double-sided tape, etc. During the molding process of high temperature tape, a release film is required for lamination protection, but the traditional release film has poor heat resistance during the high temperature extrusion or stamping die-cutting process of the high temperature tape. High temperature and high pressure will cause the release film structure to soften, and the pressure resistance mechanical properties will decrease, resulting in irreparable deformation or damage, affecting the production yield of the high temperature tape. Therefore, the release film is required to have high temperature and pressure resistance when used in conjunction with the high temperature tape. At the same time, when the high temperature tape is processed at high temperature or its performance is tested at high temperature, the release film is also prone to high temperature spontaneous combustion and poor flame retardancy. Therefore, it is necessary to develop a high temperature tape release film that is resistant to high temperatures and has good flame retardancy. Utility Model Content
[0005] In view of the above-mentioned shortcomings, the utility model aims to provide a high-temperature adhesive tape release film with reasonable structural design, high temperature resistance and good flame retardancy.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions:
[0007] A high-temperature adhesive tape release film comprises a bearing layer, an antistatic protective layer, a silicone oil layer, a surface treatment layer, an upper pressure-resistant layer, a lower pressure-resistant layer, an upper bonding layer, a lower bonding layer and a fireproof layer, wherein the antistatic protective layer, the silicone oil layer, the surface treatment layer, the upper pressure-resistant layer, the upper bonding layer, the bearing layer, the lower bonding layer, the lower pressure-resistant layer and the fireproof layer are sequentially laminated in order from top to bottom.
[0008] As a preferred solution of the utility model, the antistatic protective layer is an antistatic EPE pearl cotton and an antistatic nylon film with a thickness of 25 to 75 microns, and has a good antistatic effect.
[0009] As a preferred solution of the utility model, the silicone oil layer is a methylcyclosiloxane coating, a polydiethylsiloxane coating or a tetracyclylsiloxane coating with a thickness of 2 to 4 microns.
[0010] As a preferred solution of the utility model, the surface treatment layer is 2 to 4 microns, and is formed by arc treatment on the surface of the upper voltage-resistant layer through a corona machine, which is conducive to the adhesion of the silicone oil layer on its surface.
[0011] As a preferred solution of the utility model, the upper voltage-resistant layer or the lower voltage-resistant layer is a voltage-resistant polyimide film with a thickness of 50 to 180 microns, which has excellent high and low temperature resistance, electrical insulation, adhesion, radiation resistance, and dielectric resistance. It can be used for a long time in the temperature range of -269°C to 280°C, and can reach a high temperature of 400°C for a short time.
[0012] As a preferred solution of the utility model, the upper adhesive layer or the lower adhesive layer is a glass fiber cloth double-sided tape, acrylic double-sided foam tape, PE foam double-sided tape or EVA double-sided tape with a thickness of 3 to 10 microns, which has the advantages of strong adhesion, good cold resistance and good heat resistance.
[0013] As a preferred solution of the utility model, the fireproof layer is a polyphenylene sulfide film or a fireproof PC film with a thickness of 75 to 150 microns, which has a high heat resistance temperature index, is flame retardant, and has a good fireproof effect.
[0014] As a preferred solution of the utility model, the bearing layer is a PBT film or a PET film or a PVC film with a thickness of 50 to 80 microns, which has good bearing capacity, can support the entire release film structure and ensure the stability of the product.
[0015] The beneficial effects of the utility model are as follows: the utility model has a reasonable structural design, is provided with upper and lower pressure-resistant layers, has good high and low temperature resistance, effectively solves the problem that traditional release films are prone to deformation or damage in high-temperature tape high-temperature extrusion or stamping die-cutting processes, has good high-temperature pressure resistance, improves product production yield, and is provided with a fireproof layer, which effectively improves the heat resistance temperature index, has flame retardancy, and has good fireproof effect; an anti-static protective layer is provided to prevent the occurrence of potential electrostatic hazards to products due to collision and friction during production and transportation, and the protection effect is good. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model. DETAILED DESCRIPTION
[0017] Example 1: See Figure 1The embodiment of the utility model provides a high-temperature adhesive tape release film, which includes an antistatic protective layer 1, a silicone oil layer 2, a surface treatment layer 3, an upper pressure-resistant layer 4, an upper adhesive layer 5, a bearing layer 6, a lower adhesive layer 7, a lower pressure-resistant layer 8 and a fireproof layer 9 which are sequentially laminated from top to bottom.
[0018] In the present embodiment, the bearing layer 6 is preferably a PBT film with a thickness of 60 microns, a light transmittance of 85%, and a haze of 5%. The antistatic protective layer 1 is preferably an antistatic EPE pearl cotton with a thickness of 30 microns, and has a good antistatic effect. The silicone oil layer 2 is preferably a methylcyclosiloxane coating with a thickness of 2 microns. The upper pressure-resistant layer 4 and the lower pressure-resistant layer 8 are preferably voltage-resistant polyimide films with a thickness of 80 microns. The surface of the upper pressure-resistant layer 4 is arc-treated by a corona machine to form a surface treatment layer 3 with a thickness of 3 microns. The upper bonding layer 5 and the lower bonding layer 7 are preferably PE foam double-sided tapes with a thickness of 3 microns. The fireproof layer 9 is preferably a polyphenylene sulfide film with a thickness of 75 microns.
[0019] Embodiment 2: The embodiment of the utility model provides a high-temperature adhesive tape release film, which is basically the same as the structure of embodiment 1, except that the bearing layer 6 is preferably a PVC film with a thickness of 80 microns, a light transmittance of 88%, and a haze of 8%. The antistatic protective layer 1 is preferably an antistatic nylon film with a thickness of 55 microns. The silicone oil layer 2 is preferably a polydiethylsiloxane coating with a thickness of 4 microns. The upper pressure-resistant layer 4 and the lower pressure-resistant layer 8 are preferably voltage-resistant polyimide films with a thickness of 120 microns. The surface of the upper pressure-resistant layer 4 is subjected to arc treatment by a corona machine to form a surface treatment layer 3 with a thickness of 3 microns. The upper bonding layer 5 and the lower bonding layer 7 are preferably EVA double-sided tapes with a thickness of 5 microns. The fireproof layer 9 is preferably a fireproof PC film with a thickness of 100 microns.
[0020] Embodiment 3: The embodiment of the utility model provides a high-temperature adhesive tape release film, which has a basically the same structure as that of embodiment 1, except that the bearing layer 6 is preferably a PET film with a thickness of 50 microns. The antistatic protective layer 1 is preferably an antistatic EPE pearl cotton with a thickness of 25 microns. The silicone oil layer 2 is preferably a tetraepoxy cyclosiloxane coating with a thickness of 2 microns. The upper pressure-resistant layer 4 is preferably a voltage-resistant polyimide film with a thickness of 50 microns, and the lower pressure-resistant layer 8 is preferably a voltage-resistant polyimide film with a thickness of 60 microns. The surface of the upper pressure-resistant layer 4 is subjected to arc treatment by a corona machine to form a surface treatment layer 3 with a thickness of 2 microns. The upper bonding layer 5 is preferably a double-sided glass fiber cloth tape with a thickness of 3 microns. The lower bonding layer 7 is preferably an acrylic double-sided foam tape with a thickness of 4 microns. The fireproof layer 9 is preferably a polyphenylene sulfide film with a thickness of 75 microns.
[0021] Embodiment 4: The embodiment of the utility model provides a high-temperature adhesive tape release film, which has a basically the same structure as that of embodiment 1, except that the bearing layer 6 is preferably a PET film with a thickness of 70 microns. The antistatic protective layer 1 is preferably an antistatic nylon film with a thickness of 75 microns. The silicone oil layer 2 is preferably a methylcyclosiloxane coating with a thickness of 4 microns. The upper pressure-resistant layer 4 is preferably a voltage-resistant polyimide film with a thickness of 180 microns, and the lower pressure-resistant layer 8 is preferably a voltage-resistant polyimide film with a thickness of 160 microns. The surface of the upper pressure-resistant layer 4 is subjected to arc treatment by a corona machine to form a surface treatment layer 3 with a thickness of 4 microns. The upper bonding layer 5 is preferably a PE foam double-sided tape with a thickness of 10 microns. The lower bonding layer 7 is preferably an EVA double-sided tape with a thickness of 8 microns. The fireproof layer 9 is preferably a fireproof PC film with a thickness of 150 microns.
[0022] The above embodiments are only preferred implementations of the utility model. The utility model cannot list all implementations one by one. Any technical solution using one of the above embodiments, or equivalent changes made according to the above embodiments, are within the protection scope of the utility model. An anti-static protective layer 1 is provided to prevent the occurrence of potential electrostatic hazards to products due to collision and friction during the production and transportation process, and the protection effect is good. An upper pressure-resistant layer 4 and a lower pressure-resistant layer 8 are provided, which have good high and low temperature resistance, and effectively solve the problem that traditional release films are prone to deformation or damage in high-temperature tape high-temperature extrusion or stamping die-cutting processes. It has good high-temperature pressure resistance and improves product production yield. It is also provided with a fireproof layer 9, which effectively improves the heat resistance temperature index, has flame retardancy, good fireproof effect, and good comprehensive performance.
[0023] According to the disclosure and teaching of the above specification, technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementations disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model. Other membranes that are the same or similar to them are all within the scope of protection of the utility model.
Claims
1. A high temperature adhesive tape release film, comprising a bearing layer, characterized in that: It also includes an antistatic protective layer, a silicone oil layer, a surface treatment layer, an upper pressure-resistant layer, a lower pressure-resistant layer, an upper bonding layer, a lower bonding layer and a fireproof layer. The antistatic protective layer, silicone oil layer, surface treatment layer, upper pressure-resistant layer, upper bonding layer, bearing layer, lower bonding layer, lower pressure-resistant layer and fireproof layer are sequentially bonded in order from top to bottom.
2. The high temperature adhesive tape release film according to claim 1, characterized in that: The antistatic protective layer is antistatic EPE pearl cotton and antistatic nylon film with a thickness of 25 to 75 microns.
3. The high temperature adhesive tape release film according to claim 1, characterized in that: The silicone oil layer is a methylcyclosiloxane coating, a polydiethylsiloxane coating or a tetracyclylsiloxane coating with a thickness of 2 to 4 microns.
4. The high temperature adhesive tape release film according to claim 1, characterized in that: The surface treatment layer is 2 to 4 microns.
5. The high temperature adhesive tape release film according to claim 1, characterized in that: The upper voltage-resistant layer or the lower voltage-resistant layer is a voltage-resistant polyimide film with a thickness of 50 to 180 microns.
6. The high temperature adhesive tape release film according to claim 1, characterized in that: The upper adhesive layer or the lower adhesive layer is a glass fiber cloth double-sided tape, an acrylic double-sided foam tape, a PE foam double-sided tape or an EVA double-sided tape with a thickness of 3 to 10 microns.
7. The high temperature adhesive tape release film according to claim 1, characterized in that: The fireproof layer is a polyphenylene sulfide film or a fireproof PC film with a thickness of 75 to 150 microns.
8. The high temperature adhesive tape release film according to any one of claims 1 to 7, characterized in that: The bearing layer is a PBT film, a PET film or a PVC film with a thickness of 50 to 80 microns.