Corrosion-resistant high-temperature adhesive tape suitable for electrode connecting sheet
By introducing corrosion-resistant and high-temperature resistant materials into the tape, the adhesion problem of the tape in high temperature and corrosive environments is solved, and safe and reliable connection of the electrode connecting pieces is achieved.
Patent Information
- Application Number
- CN202422615356.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Existing adhesive tapes are easily corroded when exposed to air for a long time or when baked at high temperatures, resulting in poor adhesion and a safety hazard of short-circuiting the electrode connecting pieces.
A corrosion-resistant and high-temperature tape is designed, which includes a base material layer, a corrosion-resistant layer, a high-temperature resistant layer, a separation layer, a waterproof layer and an adhesive layer. The tape adopts materials such as polyimide film, fluororubber, polyurethane resin and pressure-sensitive adhesive to improve the corrosion resistance and high-temperature resistance.
The corrosion resistance and high temperature resistance of the tape are improved, ensuring the connection safety and stability of the electrode connecting piece, and it is suitable for extreme environments.
Smart Images
Figure CN223342631U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of adhesive tapes, in particular to a corrosion-resistant high-temperature adhesive tape suitable for electrode connecting sheets. Background Art
[0002] Electrode connectors, also known as electrode connectors or electrode plugs, are small, conductive sheets used to connect electronic components. Typically made of metal or alloy materials, they are widely used in electronics, communications, computers, automotive, medical, and aerospace applications. Their primary function is to effectively adjust the distance between components and connectors, achieving a perfect connection while ensuring signal transmission and leakage protection.
[0003] During the electrode sheet connection process, adhesive tape is often used as an auxiliary material. For example, when connecting electrode sheets in a roll-to-roll process, adhesive tape may be used to firmly bond the electrode sheet to the flexible connecting sheet to ensure the stability and reliability of the connection. In addition, insulating tape also plays an important role in insulating and protecting the electrode sheets, preventing current leakage and damage to the electrode sheets from the external environment.
[0004] At present, after use, the surface of existing tapes will corrode after long-term contact with air, or the tape will deform under high-temperature baking, which will lead to poor adhesion and cause short circuit of electrode connecting pieces, posing a serious safety hazard.
[0005] Therefore, in order to solve the above problems, the applicant needs to design a corrosion-resistant high-temperature tape suitable for electrode connecting sheets to solve the problems. Summary of the Invention
[0006] The purpose of the present invention is to provide a corrosion-resistant high-temperature adhesive tape suitable for electrode connecting sheets, so as to solve the problems mentioned in the above background technology.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a corrosion-resistant high-temperature tape suitable for an electrode connecting sheet, comprising a substrate layer and an adhesive layer bonded to the substrate layer, the substrate layer comprising a corrosion-resistant layer, and a high-temperature resistant layer is hot-melt-bonded on one side of the corrosion-resistant layer, a separator layer is hot-melt-bonded on one side of the high-temperature resistant layer, and the separator layer is preferably a PET film, a waterproof layer is hot-melt-bonded on one side of the separator layer, and the waterproof layer is bonded to the adhesive layer, the corrosion-resistant layer comprises a polyimide film hot-melt-bonded to the high-temperature resistant layer, and an anti-corrosion coating is coated on the outside of the polyimide film.
[0008] Furthermore, the high temperature resistant layer comprises two tensile layers, and the two tensile layers are respectively hot melt pressed with the PET film and the polyimide film, and the tensile layers are preferably rubber films.
[0009] Through the above structural design, the rubber film is made of fluororubber, which has good resistance to most strong acids and can remain stable in acidic environments. Fluororubber also has good tolerance to a variety of organic solvents and can prevent solvent penetration and erosion. Fluororubber can also maintain its physical and chemical properties in high temperature environments and can usually withstand temperatures of up to 200°C. It has excellent high temperature resistance and chemical corrosion resistance and is suitable for use in extreme environments.
[0010] Furthermore, a filling layer is provided between the opposite surfaces of the two tensile layers, and the filling layer is compacted and filled with polyurethane resin.
[0011] Through the above structural design, polyurethane resin is a polymer generated by the reaction of isocyanate and polyol. The diversity of its chemical structure allows polyurethane resin to be formulated according to different application requirements, thereby obtaining different properties. It has good tolerance to a variety of chemical substances, especially modified polyurethane resin, which can resist the corrosion of strong acids and strong bases. In addition, polyurethane resin can maintain its physical properties at higher temperatures. Modified polyurethane resin can withstand temperatures as high as 120 to 150 degrees Celsius.
[0012] Furthermore, the waterproof layer is formed by coating a water-repellent agent composed of synthetic resin on a reinforcing rib layer, and the reinforcing rib layer is made of polyester yarn.
[0013] Through the above structural design, the waterproof layer is used to improve the overall waterproof performance of the tape and prevent external water from penetrating the adhesive layer.
[0014] Furthermore, the adhesive layer is made of pressure-sensitive adhesive, and the pressure-sensitive adhesive is a mixture of modified acrylic emulsion and flame-retardant polyurethane emulsion.
[0015] Through the above structural design, the semi-continuous emulsion polymerization method is used to prepare the acrylic ester emulsion, which reduces the viscosity of the polymer emulsion and improves the cohesive strength of the pressure-sensitive adhesive. The acrylic ester emulsion pressure-sensitive adhesive with good emulsion stability and excellent bonding strength is prepared, and the bonding ability is strong. At the same time, the flame-retardant polyurethane emulsion is a reactive flame-retardant polyurethane emulsion synthesized by polyurethane prepolymer and compounded flame-retardant reaction monomer, which contains two elements, P and N. It can not only generate acidic substances to promote the dehydration of the substrate to form carbon, but also generate non-combustible gases such as NO2 to dilute the oxygen concentration in the combustion environment, play a role in suppressing combustion, and has high safety.
[0016] Furthermore, the mass ratio of the modified acrylic ester emulsion to the flame retardant polyurethane emulsion is 2:3.
[0017] Through the above structural design, the mass ratio of the modified acrylic emulsion to the flame-retardant polyurethane emulsion is 2:3, which is convenient for balancing the bonding performance and high temperature resistance of the adhesive layer, thereby improving the overall application range of the tape.
[0018] Compared with the prior art, the beneficial effects of the present invention are: the corrosion-resistant high-temperature adhesive tape suitable for the electrode connecting sheet has good corrosion resistance and high-temperature resistance, thereby improving the connection safety of the electrode connecting sheet. The specific contents are as follows:
[0019] 1. The corrosion-resistant high-temperature tape suitable for electrode connecting sheets is provided with a corrosion-resistant layer and a high-temperature resistant layer. The corrosion-resistant layer comprises a polyimide film hot-melt-bonded to the high-temperature resistant layer, and the outer side of the polyimide film is coated with an anti-corrosion coating. Polyimide is a polymer material formed by the polycondensation reaction of diamine and dianhydride. It has good tolerance to a variety of chemical substances (such as acids, alkalis and solvents) and can resist the erosion of most organic solvents, strong acids and strong alkalis.
[0020] 2. The corrosion-resistant high-temperature tape suitable for the electrode connecting piece is provided with a high-temperature resistant layer, which includes two tensile layers. A filling layer is provided between the opposite surfaces of the two tensile layers, and the filling layer is compacted and filled with polyurethane resin. The tensile layer is preferably a rubber film, and the rubber film is made of fluororubber. Fluororubber has good resistance to most strong acids and can remain stable in acidic environments. Fluororubber has good tolerance to a variety of organic solvents and can prevent solvent penetration and erosion. Fluororubber can also maintain its physical and chemical properties in high temperature environments and can generally withstand temperatures of up to 200°C. It has excellent high temperature resistance and chemical corrosion resistance and is suitable for use in extreme environments. Polyurethane resin is a polymer generated by the reaction of isocyanate and polyol. The diversity of its chemical structure allows polyurethane resin to be formulated according to different application requirements to obtain different properties. It has good tolerance to a variety of chemical substances, especially modified polyurethane resin, which can resist the erosion of strong acids and strong alkalis, and the polyurethane resin can maintain its physical properties at higher temperatures. The modified polyurethane resin can withstand temperatures of up to 120 to 150 degrees Celsius, thereby improving the connection safety of the electrode connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;
[0022] Figure 2 This is a schematic diagram of the split structure of the substrate layer of the utility model;
[0023] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the high-temperature resistant layer of the utility model;
[0024] Figure 4 It is a schematic diagram of the overall cross-sectional structure of the utility model.
[0025] In the figure: 1. Base material layer; 2. Adhesive layer; 3. Corrosion-resistant layer; 4. High-temperature-resistant layer; 5. Separation layer; 6. Waterproof layer; 7. Tensile-resistant layer; 8. Filling layer. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0027] like Figure 1-Figure 4 As shown, the utility model is a corrosion-resistant and high-temperature tape suitable for electrode connecting sheets, comprising a substrate layer 1 and an adhesive layer 2 bonded to the substrate layer 1, characterized in that the substrate layer 1 includes a corrosion-resistant layer 3, and a high-temperature resistant layer 4 is hot-melt-bonded on one side of the corrosion-resistant layer 3, a separator 5 is hot-melt-bonded on one side of the high-temperature resistant layer 4, and the separator 5 is preferably a PET film, a waterproof layer 6 is hot-melt-bonded on one side of the separator 5, and the waterproof layer 6 is bonded to the adhesive layer 2, the corrosion-resistant layer 3 comprises a polyimide film hot-melt-bonded to the high-temperature resistant layer 4, and the outside of the polyimide film is coated with an anti-corrosion coating.
[0028] The high-temperature resistant layer 4 includes two tensile layers 7, and the two tensile layers 7 are hot-melt pressed with the PET film and the polyimide film respectively. The tensile layer 7 is preferably a rubber film, and the rubber film is made of fluororubber. Fluororubber has good resistance to most strong acids and can remain stable in acidic environments. Fluororubber also has good tolerance to a variety of organic solvents and can prevent solvent penetration and erosion. Fluororubber can also maintain its physical and chemical properties in high temperature environments and can usually withstand temperatures up to 200°C or above. It has excellent high temperature resistance and chemical corrosion resistance and is suitable for use in extreme environments. A filling layer 8 is provided between the opposing surfaces of the two tensile layers 7, and the filling layer 8 is compacted and filled with polyurethane resin. Polyurethane resin is a polymer generated by the reaction of isocyanate and polyol. The diversity of its chemical structure allows polyurethane resin to be formulated according to different application requirements to obtain different properties. It has good tolerance to a variety of chemical substances, especially modified polyurethane resin, which can resist the erosion of strong acids and strong alkalis, and the polyurethane resin can maintain its physical properties at higher temperatures. The modified polyurethane resin can withstand temperatures as high as 120 to 150 degrees Celsius.
[0029] The waterproof layer 6 is formed by coating a water-repellent agent composed of synthetic resin on a reinforcing rib layer. The reinforcing rib layer is made of polyester yarn. The waterproof layer 6 is used to improve the overall waterproof performance of the tape and prevent external water from penetrating the adhesive layer.
[0030] The material of the adhesive layer 2 is a pressure-sensitive adhesive, and the pressure-sensitive adhesive is a mixture of modified acrylic ester emulsion and flame-retardant polyurethane emulsion. The mass ratio of the modified acrylic ester emulsion and the flame-retardant polyurethane emulsion is 2:3. The acrylic ester emulsion is prepared by a semi-continuous emulsion polymerization method to reduce the viscosity of the polymer emulsion and improve the cohesive strength of the pressure-sensitive adhesive. The acrylic ester emulsion pressure-sensitive adhesive with good emulsion stability and excellent bonding strength is prepared, and the bonding ability is strong. At the same time, the flame-retardant polyurethane emulsion is a reactive flame-retardant polyurethane emulsion synthesized by a polyurethane prepolymer and a compounded flame-retardant reaction monomer. It contains two elements, P and N, which can not only generate acidic substances to promote the dehydration of the substrate into carbon, but also generate non-combustible gases such as NO2 to dilute the oxygen concentration in the combustion environment, thereby inhibiting combustion and having high safety.
[0031] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.
Claims
1. A corrosion-resistant high-temperature adhesive tape suitable for an electrode connecting sheet, comprising a substrate layer (1) and an adhesive layer (2) bonded to the substrate layer (1), characterized in that: The substrate layer (1) includes a corrosion-resistant layer (3), and a high-temperature resistant layer (4) is hot-melt-bonded to one side of the corrosion-resistant layer (3), a separation layer (5) is hot-melt-bonded to one side of the high-temperature resistant layer (4), and the separation layer (5) is a PET film, a waterproof layer (6) is hot-melt-bonded to one side of the separation layer (5), and the waterproof layer (6) is bonded to the adhesive layer (2), and the corrosion-resistant layer (3) includes a polyimide film hot-melt-bonded to the high-temperature resistant layer (4), and the outer side of the polyimide film is coated with an anti-corrosion coating.
2. The corrosion-resistant high-temperature tape suitable for electrode connecting sheets according to claim 1, characterized in that: The high temperature resistant layer (4) comprises two tensile layers (7), and the two tensile layers (7) are respectively hot-melt pressed with a PET film and a polyimide film, and the tensile layers (7) are rubber films.
3. The corrosion-resistant high-temperature tape suitable for electrode connecting sheets according to claim 2, characterized in that: A filling layer (8) is provided between the opposite surfaces of the two tensile layers (7), and the filling layer (8) is compacted and filled with polyurethane resin.
4. The corrosion-resistant high-temperature tape suitable for electrode connecting sheets according to claim 1, characterized in that: The waterproof layer (6) is formed by coating a water-repellent agent composed of synthetic resin on a reinforcing rib layer, and the reinforcing rib layer is made of polyester yarn.
5. The corrosion-resistant high-temperature tape suitable for electrode connecting sheets according to claim 1, characterized in that: The adhesive layer (2) is made of pressure-sensitive adhesive, and the pressure-sensitive adhesive is a mixture of modified acrylic ester emulsion and flame-retardant polyurethane emulsion.
6. The corrosion-resistant high-temperature adhesive tape suitable for electrode connecting sheets according to claim 5, characterized in that: The mass ratio of the modified acrylic ester emulsion to the flame retardant polyurethane emulsion is 2:3.