High-temperature PI aluminum foil composite belt
By introducing composite layer, PI layer, thermal insulation layer and aluminum foil layer into the aluminum foil composite belt, and thermal bonding, the problem of degradation of shielding performance in a high-temperature environment is solved, and the high-temperature durable shielding effect is achieved.
Patent Information
- Application Number
- CN202421840266.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-31
AI Technical Summary
In the high temperature or open flame environment, the conductivity of the aluminum foil composite belts leads to a deterioration of shielding performance and it is difficult to withstand high temperatures.
A high-temperature PI aluminum foil composite belt consisting of a composite layer, a PI layer, a heat insulation layer and an aluminum foil layer are used. Each layer is bonded to each other by a thermosetting glue. The PI layer is composed of polyimide resin and the heat insulation layer is composed of aerogel felt.
It effectively improves the high temperature resistance of the composite belt, ensuring that the shielding capacity does not decrease in high temperature environment, is stable in use, and has strong practicality.
Smart Images
Figure CN222905081U_ABST
Abstract
Description
Technical Field:
[0001] The utility model relates to the technical field of aluminum foil composite tapes, in particular to a high-temperature PI aluminum foil composite tape. Background Art:
[0002] When producing transmission cables, in order to improve the anti-interference performance, a shielding layer is generally required to realize functions such as loop formation and electromagnetic shielding; common forms of the shielding layer include tape wrapping, braiding, winding, corrugated pipes, or combinations of these forms, and the most common form of tape wrapping shielding layer is an aluminum foil composite thin tape as the shielding layer; when the existing aluminum foil composite is used in high-temperature or open-fire occasions, the high temperature will change the conductivity of the aluminum foil itself, resulting in a decline in the shielding performance of the aluminum foil itself, and there is an urgent need for a high-temperature resistant aluminum foil composite tape. Summary of the Utility Model:
[0003] The purpose of the utility model is to provide a high-temperature PI aluminum foil composite tape that can resist heat and high temperatures in view of the deficiencies of the existing technology.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a high-temperature PI aluminum foil composite tape, including a composite tape body, the composite tape body successively includes a composite layer, a PI layer, a heat insulation layer, and an aluminum foil layer from top to bottom, and the composite layer, the PI layer, the heat insulation layer, and the aluminum foil layer are adhesively bonded to each other through a thermosetting adhesive.
[0005] A further improvement to the above solution is that the thermosetting adhesive is composed of a polymer resin solution.
[0006] A further improvement to the above solution is that the PI layer is composed of polyimide resin.
[0007] A further improvement to the above solution is that the thickness of the PI layer is 10 - 30 μm.
[0008] A further improvement to the above solution is that the composite layer is composed of a PET polyester film.
[0009] A further improvement to the above solution is that the thickness of the composite layer is 3 - 10 μm.
[0010] A further improvement to the above solution is that the aluminum foil layer is aluminum foil.
[0011] A further improvement to the above solution is that the thickness of the aluminum foil layer is 4 - 20 μm.
[0012] A further improvement to the above solution is that the heat insulation layer is composed of aerogel felt.
[0013] The beneficial effects of the present utility model are as follows: A high-temperature PI aluminum foil composite tape provided by the present utility model includes a composite tape body. The composite tape body sequentially includes a composite layer, a PI layer, a heat insulation layer, and an aluminum foil layer from top to bottom. The composite layer, the PI layer, the heat insulation layer, and the aluminum foil layer are adhesively bonded to each other through a thermosetting adhesive;
[0014] The composite tape body of the present utility model includes a composite layer, a PI layer, a heat insulation layer, and an aluminum foil layer. Each layer is adhesively bonded to each other through a thermosetting adhesive, and the structure is firm. The composite layer and the aluminum foil layer cooperate to shield electromagnetic waves. At the same time, the PI layer can further improve the shielding ability. Cooperating with the heat insulation layer can isolate the heat reaching the aluminum foil layer, effectively improving the high-temperature resistance of the composite tape. Even in a high-temperature environment, the shielding ability of the composite tape will not decrease, and it is stable in use and has strong practicability. Brief Description of the Drawings:
[0015] Figure 1 It is a schematic cross-sectional structure diagram of the present utility model.
[0016] Description of the reference numerals: Composite tape body 1, composite layer 2, PI layer 3, heat insulation layer 4, aluminum foil layer 5. Detailed Embodiments:
[0017] The following further describes the present utility model with reference to the drawings. As Figure 1 shown, the present utility model provides a high-temperature PI aluminum foil composite tape, including a composite tape body 1. The composite tape body 1 sequentially includes a composite layer 2, a PI layer 3, a heat insulation layer 4, and an aluminum foil layer 5 from top to bottom. The composite layer 2, the PI layer 3, the heat insulation layer 4, and the aluminum foil layer 5 are adhesively bonded to each other through a thermosetting adhesive; The composite tape body 1 of the present utility model includes a composite layer 2, a PI layer 3, a heat insulation layer 4, and an aluminum foil layer 5. Each layer is adhesively bonded to each other through a thermosetting adhesive, and the structure is firm. The composite layer 2 and the aluminum foil layer 5 cooperate to shield electromagnetic waves. At the same time, the PI layer 3 can further improve the shielding ability. Cooperating with the heat insulation layer 4 can isolate the heat reaching the aluminum foil layer 5, effectively improving the high-temperature resistance of the composite tape. Even in a high-temperature environment, the shielding ability of the composite tape will not decrease, and it is stable in use and has strong practicability.
[0018] The thermosetting adhesive of the present utility model is composed of a polymer resin adhesive solution. The polymer resin adhesive solution has stronger viscosity and higher bonding strength. After the bonding of each layer is completed, stamping treatment can be carried out, so that the overall adhesiveness and stability of the composite tape are improved, and the structural layer is not easy to fall off.
[0019] The PI layer 3 of the present utility model is composed of polyimide resin. The polyimide resin has better heat resistance, and it has excellent mechanical strength and flame retardancy. Cooperating with the heat insulation layer 4 can further improve the heat insulation performance of the composite tape; The thickness of the PI layer 3 of the present utility model is 10 - 30 μm.
[0020] The composite layer 2 of the present utility model is composed of PET polyester film, with strong shielding performance, excellent chemical resistance and oil resistance, and can be applied to harsh environments; the thickness of the composite layer 2 of the present utility model is 3-10μm.
[0021] The aluminum foil layer 5 of the present utility model is aluminum foil; the thickness of the aluminum foil layer 5 of the present utility model is 4-20μm, with a light structure and strong anti-interference performance.
[0022] The heat insulation layer 4 of the present utility model is composed of aerogel felt. Compared with traditional heat insulation materials, it not only has superior heat insulation performance, but also is soft and easy to cut, and is green and environmentally friendly.
[0023] Working principle:
[0024] The composite tape body 1 includes a composite layer 2, a PI layer 3, a heat insulation layer 4, and an aluminum foil layer 5. Each layer is adhesively bonded to each other through thermosetting glue, with a firm structure. The composite layer 2 and the aluminum foil layer 5 cooperate to shield electromagnetic waves. At the same time, the PI layer 3 can further improve the shielding ability. Cooperating with the heat insulation layer 4 can isolate the heat reaching the aluminum foil layer 5, effectively improving the high-temperature resistance of the composite tape. Even in a high-temperature environment, the shielding ability of the composite tape will not decrease, and it is stable in use and has strong practicability.
[0025] Certainly, the above is only the preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present utility model are included in the scope of the patent application of the present utility model.
Claims
1. A high-temperature PI aluminum foil composite tape, comprising a composite tape body (1), characterized in that: The composite tape body (1) comprises, from top to bottom, a composite layer (2), a PI layer (3), a heat insulating layer (4), and an aluminum foil layer (5), wherein the composite layer (2), the PI layer (3), the heat insulating layer (4), and the aluminum foil layer (5) are bonded to each other by means of a thermosetting adhesive.
2. The high temperature PI aluminum foil composite tape according to claim 1, characterized in that: The thermosetting adhesive is composed of polymer resin adhesive.
3. The high temperature PI aluminum foil composite tape according to claim 1, characterized in that: The PI layer (3) is made of polyimide resin.
4. The high temperature PI aluminum foil composite tape according to claim 1, characterized in that: The thickness of the PI layer (3) is 10-30 μm.
5. The high temperature PI aluminum foil composite tape according to claim 1, characterized in that: The composite layer (2) is made of PET polyester film.
6. The high temperature PI aluminum foil composite tape according to claim 1, characterized in that: The thickness of the composite layer (2) is 3-10 μm.
7. The high temperature PI aluminum foil composite tape according to claim 1, characterized in that: The aluminum foil layer (5) is aluminum foil.
8. The high temperature PI aluminum foil composite tape according to claim 1, characterized in that: The thickness of the aluminum foil layer (5) is 4-20 μm.
9. The high temperature PI aluminum foil composite tape according to claim 1, characterized in that: The heat insulation layer (4) is made of aerogel felt.