Easily-disassembled heat-dissipating shielding wave-absorbing adhesive tape

Abstract

The utility model discloses a heat-dissipating, shielding and wave-absorbing adhesive tape easy to disassemble. Comprising a graphite layer, a first high-temperature-resistant acrylic adhesive layer arranged on the upper end face of the graphite layer, a ferrite layer arranged on the upper end face of the first high-temperature-resistant acrylic adhesive layer, a second high-temperature-resistant acrylic adhesive layer arranged on the upper end face of the ferrite layer and a foam layer arranged on the upper end face of the second high-temperature-resistant acrylic adhesive layer. The third high-temperature-resistant acrylic adhesive layer is arranged on the lower end face of the graphite layer, the metal foil is arranged on the lower end face of the third high-temperature-resistant acrylic adhesive layer, and the electric viscosity reducing adhesive layer is arranged on the lower end face of the metal foil. The adhesive tape has the advantages that the whole adhesive tape can form a passage between a pasted product and the metal foil layer according to the heavy industry requirement, so that the viscosity of the electric viscosity-reducing adhesive layer is reduced after current passes through, and the adhesive tape can be quickly torn off from the pasted product. When the whole adhesive tape is used for protecting an adhered object, the functions of buffering, wave-absorbing shielding, heat dissipation and convenient disassembly are achieved.

Description

Technical Field

[0001] This utility model relates to the field of adhesive tape, specifically an easy-to-disassemble heat dissipation shielding and wave-absorbing adhesive tape. Background Technology

[0002] With the popularization of 5G application communication technology, flexible electronic devices (such as flexible OLED high refresh rate) and electronic devices in the new energy vehicle industry, the electromagnetic interference generated by the equipment and the application requirements for heat dissipation are becoming increasingly stringent. While meeting the user's heat dissipation, shielding and wave absorption needs, there will inevitably be some heavy-duty application requirements. Traditional tape is not easy to peel off from the object during heavy-duty work, which increases the difficulty of heavy-duty work.

[0003] Therefore, it is necessary to provide an easily disassembled heat dissipation shielding and wave-absorbing tape. Summary of the Invention

[0004] This utility model provides an easy-to-disassemble heat dissipation shielding and absorbing tape, which effectively solves the problem that the shielding and absorbing tape of existing electronic devices is not easy to disassemble.

[0005] The technical solution adopted in this utility model is:

[0006] A disassembly-friendly heat dissipation shielding and wave-absorbing tape includes a graphite layer, a first high-temperature resistant acrylic adhesive layer disposed on the upper surface of the graphite layer, a ferrite layer disposed on the upper surface of the first high-temperature resistant acrylic adhesive layer, a second high-temperature resistant acrylic adhesive layer disposed on the upper surface of the ferrite layer, a foam layer disposed on the upper surface of the second high-temperature resistant acrylic adhesive layer, a third high-temperature resistant acrylic adhesive layer disposed on the lower surface of the graphite layer, a metal foil disposed on the lower surface of the third high-temperature resistant acrylic adhesive layer, and an electro-adhesive layer disposed on the lower surface of the metal foil.

[0007] Furthermore, the thickness of the No. 1, No. 2, and No. 3 high-temperature resistant acrylic adhesive layers is the same.

[0008] Furthermore, the metal foil is either nickel-plated copper or tin-plated copper.

[0009] Furthermore, the foam layer is either CR foam or PE foam.

[0010] Furthermore, a release layer is also provided on the lower end face of the electro-adhesive layer.

[0011] The beneficial effects of this utility model are as follows: When heavy-duty applications require adhesive tape, it creates a pathway between the substrate and the metal foil layer, reducing the adhesive strength of the electro-adhesive layer after current is applied, thus allowing the tape to be quickly removed from the substrate. While protecting the substrate, the tape also provides cushioning, wave absorption shielding, heat dissipation, and easy disassembly. Attached Figure Description

[0012] Figure 1 This is an overall schematic diagram of the easily detachable heat dissipation shielding and absorbing tape provided in the embodiments of this application.

[0013] The markings in the diagram are: 1. Graphite layer; 2. High-temperature resistant acrylic adhesive layer No. 1; 3. Ferrite layer; 4. High-temperature resistant acrylic adhesive layer No. 2; 5. Foam layer; 6. High-temperature resistant acrylic adhesive layer No. 3; 7. Metal foil; 8. Electro-adhesive layer. Detailed Implementation

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0015] like Figure 1 As shown, the embodiments of this application provide an easily detachable heat dissipation shielding and wave-absorbing tape, including a graphite layer 1, a first high-temperature resistant acrylic adhesive layer 2 disposed on the upper surface of the graphite layer 1, a ferrite layer 3 disposed on the upper surface of the first high-temperature resistant acrylic adhesive layer 2, a second high-temperature resistant acrylic adhesive layer 4 disposed on the upper surface of the ferrite layer, a foam layer 5 disposed on the upper surface of the second high-temperature resistant acrylic adhesive layer 4, a third high-temperature resistant acrylic adhesive layer 6 disposed on the lower surface of the graphite layer 1, a metal foil 7 disposed on the lower surface of the third high-temperature resistant acrylic adhesive layer 6, and an electro-adhesive layer 8 disposed on the lower surface of the metal foil 7.

[0016] It should be noted that electrostatic adhesive is an existing material. For example, Chinese patent CN109705759A discloses a non-adhesive tape and its preparation method, which describes how, after the conductive layer and cathode layer are energized, the light-emitting layer emits light, triggering a reaction in the adhesive coating of the pressure-sensitive tape layer, causing the adhesive coating to lose its adhesiveness. This tape can be widely used in the field of electronics and electrical appliances, such as in the installation process of mobile phone batteries, facilitating disassembly. The object to be adhered to needs to be a conductive material.

[0017] In practical use, the electro-adhesive layer 8 is bonded to the electronic device. Heat is transferred through the electro-adhesive layer 8 to the metal foil layer 7, then through the No. 3 high-temperature resistant acrylic adhesive layer 6, and finally to the graphite layer 1. Most of the heat is dissipated in the graphite layer 1. Wave absorption and shielding are achieved through the ferrite layer 3, and cushioning and shock absorption are provided by the foam layer 5. When rework is required, a pathway is formed between the adhered product and the metal foil layer 7, reducing the adhesiveness of the electro-adhesive layer 8. During rework, the entire tape can be directly peeled off the electronic device. Alternatively, electricity can be applied by connecting the positive terminal of a power source to the adhered product and the negative terminal to the metal foil 7, creating a circuit between the adhered product, the electro-adhesive layer, and the metal foil 7. This causes the conductive agent and physical foaming agent in the electro-adhesive layer to react, resulting in the tape losing its adhesiveness.

[0018] In the above design, the tape can create a pathway between the substrate and the 7-layer metal foil when heavy-duty applications are required. This allows the electro-adhesive layer 8 to lose its adhesion after passing through an electric current, thus enabling the tape to be quickly removed from the substrate. While protecting the substrate, the tape also provides cushioning, wave absorption shielding, heat dissipation, and easy disassembly.

[0019] Specifically, the thickness of the first high-temperature resistant acrylic adhesive layer 2, the second high-temperature resistant acrylic adhesive layer 4, and the third high-temperature resistant acrylic adhesive layer 6 is the same.

[0020] Specifically, the metal foil 7 is either nickel-plated copper or tin-plated copper.

[0021] In the above design, both nickel-plated copper and tin-plated copper reflect electromagnetic waves, achieving a shielding effectiveness of over 90dB in the 30MHz-1.5GHz range. Furthermore, the materials are scratch-resistant and offer excellent heat dissipation, oxidation resistance, and scratch resistance.

[0022] Specifically, the foam layer 5 is either CR foam or PE foam.

[0023] In the above design, CR foam and PE foam have excellent cushioning and sound absorption effects. CR foam or PE foam adopts a semi-open structure, which can effectively absorb sound waves and can be compressed by 10%-50%, making it more suitable for use in places with a certain space.

[0024] Specifically, a release layer is also provided on the lower end face of the electro-adhesive layer 8.

[0025] In actual use, the release film should be removed before use.

[0026] The above design enhances the protection of the tape.

[0027] In further detail, it should be understood that the above description is only a specific embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An easily disassembled heat dissipation shielding and wave-absorbing tape, characterized in that: It includes a graphite layer (1), a first high-temperature resistant acrylic adhesive layer (2) disposed on the upper surface of the graphite layer (1), a ferrite layer (3) disposed on the upper surface of the first high-temperature resistant acrylic adhesive layer (2), a second high-temperature resistant acrylic adhesive layer (4) disposed on the upper surface of the ferrite layer, a foam layer (5) disposed on the upper surface of the second high-temperature resistant acrylic adhesive layer (4), a third high-temperature resistant acrylic adhesive layer (6) disposed on the lower surface of the graphite layer (1), a metal foil (7) disposed on the lower surface of the third high-temperature resistant acrylic adhesive layer (6), and an electro-adhesive layer (8) disposed on the lower surface of the metal foil (7).

2. The easily detachable heat dissipation shielding and wave-absorbing tape according to claim 1, characterized in that: The first high-temperature resistant acrylic adhesive layer (2), the second high-temperature resistant acrylic adhesive layer (4), and the third high-temperature resistant acrylic adhesive layer (6) have the same thickness.

3. The easily detachable heat dissipation shielding and wave-absorbing tape according to claim 1, characterized in that: The metal foil (7) is either nickel-plated copper or tin-plated copper.

4. The easily detachable heat dissipation shielding and wave-absorbing tape according to claim 1, characterized in that: The foam layer (5) is either CR foam or PE foam.

5. The easily detachable heat dissipation shielding and wave-absorbing tape according to claim 1, characterized in that: A release layer is also provided on the lower end face of the electro-adhesive layer (8).

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