CN218842031U - High-viscosity low-resistance light heat dissipation adhesive tape for FPC curved surface - Google Patents
High-viscosity low-resistance light heat dissipation adhesive tape for FPC curved surface Download PDFInfo
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- CN218842031U CN218842031U CN202223360525.5U CN202223360525U CN218842031U CN 218842031 U CN218842031 U CN 218842031U CN 202223360525 U CN202223360525 U CN 202223360525U CN 218842031 U CN218842031 U CN 218842031U
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Abstract
The utility model discloses a high low resistance light heat dissipation sticky tape that FPC curved surface was used, including the PET substrate layer, one side of PET substrate layer is provided with black polyester and covers the layer, the opposite side of PET substrate layer is provided with black polyurethane glue film layer, black polyurethane glue film layer is kept away from PET substrate layer one side and is provided with copper aluminium composite material, copper aluminium composite material and aluminium face are towards the PET substrate layer, copper face of copper aluminium composite material is provided with the low conducting resin of modified acrylic acid, the low conducting resin of modified acrylic acid is kept away from copper aluminium composite material one side and is provided with from the type layer, and in this structure, black polyester covers the layer and plays certain shading, prevents alcohol, scrape resistant, supporting role, and black polyurethane glue film can play fixed bonding, and the effect such as shading, and copper aluminium composite material has the radiating effect of copper foil and has had the light of aluminium foil again with electric conductivity, and modified acrylic acid low conducting resin layer forms the route with the copper face complex simultaneously for this sticky tape has good electric conductivity, shielding nature, radiating effect and ground connection to use.
Description
Technical Field
The utility model relates to a heat dissipation sticky tape field, in particular to high low resistance light heat dissipation sticky tape that FPC curved surface was used.
Background
With the popularization and civilization of modern technologies, high-tech products gradually permeate into our lives, become the palm treasure of people no matter a mobile phone or a tablet personal computer, and need to be carried along when people walk to. Reading work mails, GPS navigation, real-time voice and video, listening to music, watching movies and the like, which can be easily determined, and bring great convenience and fun to work and life.
Therefore, it is necessary for manufacturers to make their products more delicate and portable. Through the application of flexible line way board, can realize the inside fine and close operation of electronic equipment, guarantee the outstanding operation of little space operation simultaneously.
Compared with the conventional resin circuit board, the flexible printed circuit board "FPC" has not only high reliability, but also many characteristics such as high wiring density, light weight, thin thickness, less wiring space limitation, high flexibility, and the like, and thus has an important position in the field of current electronic device production. However, the application of small space puts high requirements on the bonding technology of the FPC, and while ensuring the normal operation of the flexible circuit board, it is necessary to ensure the safety and reliability of bonding, especially the bonding of the curved surface FPC and the bonding of the FPC requiring conductivity, and there are two main types of tape structures currently used, one of which is: black PET + acrylic acid glue + electrically conductive cloth + acrylic acid glue, another kind of structure is: the adhesive tape with the structure has poor heat dissipation performance and shielding performance, and is not suitable for being used on a flexible circuit board.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a convenient to use, high viscidity, radiating effect are excellent, the light heat dissipation sticky tape of high low resistance that the FPC curved surface that resistance is low was used.
The utility model provides a technical scheme that its technical problem adopted is: high low resistance light heat dissipation sticky tape that FPC curved surface was used, including the PET substrate layer, one side of PET substrate layer is provided with black polyester and covers the layer, the opposite side of PET substrate layer is provided with black polyurethane glue film layer, black polyurethane glue film layer is kept away from PET substrate layer one side and is provided with copper aluminium composite, copper aluminium composite and aluminium face are towards the PET substrate layer, copper face of copper aluminium composite is provided with the low conducting resin of modified acrylic acid, the low conducting resin of modified acrylic acid is kept away from copper aluminium composite one side and is provided with from the type layer.
Further, the method comprises the following steps: the PET substrate layer may be a film grade polyester layer, a bottle grade polyester layer, or a fiber grade polyester layer.
Further, the method comprises the following steps: the thickness of the PET substrate layer is 0.0045-0.03 mm.
Further, the method comprises the following steps: the thickness of black polyester cover layer is 5 ~ 10um, the thickness of black polyurethane glue rete is 3 ~ 5um.
Further, the method comprises the following steps: the thickness of the copper layer in the copper-aluminum composite material accounts for 15% of the whole copper-aluminum composite material.
The utility model has the advantages that:
1. compared with the conductive cloth substrate adhesive tape, the conductive cloth substrate adhesive tape has good heat dissipation, compared with a copper foil substrate product, the conductive cloth substrate adhesive tape has good weight reduction performance, compared with an aluminum foil substrate product, the conductive cloth substrate adhesive tape has good strength and small resistance;
2. the adhesive has higher viscosity at normal temperature, high cohesion, excellent anti-warping performance, good heat dissipation effect and excellent shielding conductivity;
3. the performance of the product after aging is not affected, and the performance of the product is ensured.
Drawings
Fig. 1 is a schematic structural view of a high-viscosity low-resistance light heat dissipation tape for a curved surface of an FPC according to an embodiment of the present application.
Labeled as: the adhesive comprises a black polyester cover layer 1, a PET substrate layer 2, a black polyurethane adhesive film layer 3, a copper-aluminum composite material 4, a modified acrylic acid low-conductivity adhesive 5 and a release layer 6.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the embodiment of the application discloses high low resistance light heat dissipation sticky tape that FPC curved surface was used, including PET substrate layer 2, one side of PET substrate layer 2 is provided with black polyester and covers layer 1, the opposite side of PET substrate layer 2 is provided with black polyurethane glue film layer 3, black polyurethane glue film layer 3 is kept away from PET substrate layer 2 one side and is provided with copper aluminium composite 4, copper aluminium composite 4 and aluminium face are towards PET substrate layer 2, the copper face of copper aluminium composite 4 is provided with modified acrylic acid low-conductivity adhesive 5, modified acrylic acid low-conductivity adhesive 5 keeps away from copper aluminium composite 4 one side and is provided with from type layer 6.
Specifically, in the above-mentioned structure, one side coating black polyester of PET substrate layer 2 covers layer 1, play certain shading, prevent alcohol, resistant scraping, the supporting role, another side coating black polyurethane glued membrane, can play fixed bonding, the effect such as shading, copper aluminium composite 4 in the above-mentioned structure can use high temperature high pressure mode complex to be in the same place, make the radiating effect and the electric conductivity of this composite existing copper foil have the light of aluminium foil again concurrently, modified acrylic acid low conductive adhesive 5 layers simultaneously and with the copper face complex formation route, make this sticky tape have good electric conductivity, shielding nature, radiating effect and ground connection are used.
In this embodiment, the PET substrate layer 2 may be a film grade polyester layer, a bottle grade polyester layer or a fiber grade polyester layer, preferably a film grade polyester layer, which has excellent mechanical, chemical resistance and dimensional stability, and has a thickness of 0.0045 to 0.03mm, which may be 0.0045mm, 0.01mm, 0.03mm, etc., and preferably has a size of 0.006mm.
In this embodiment, the thickness of black polyester cover layer 1 is 5 ~ 10um, specifically can be 5um, 8um, 10um etc., the thickness of black polyurethane glued membrane layer 3 is 3 ~ 5um, specifically can be 3um, 4um, 5um etc..
In this embodiment, the thickness of the copper layer in the copper-aluminum composite material 4 accounts for 15% of the total thickness of the copper-aluminum composite material 4.
The copper-aluminum composite material 4 is formed by mutually melting crystal boundaries at high temperature and high pressure into a whole, and the arrangement of the thickness can ensure that the copper-aluminum composite material 4 has the heat dissipation effect and the conductivity of copper foil and also has the light weight of aluminum foil.
The high-viscosity low-resistance light heat dissipation adhesive tape for the FPC curved surface is verified by experiments and has the following characteristics:
the utility model discloses a high low resistance light heat dissipation sticky tape, alcohol is prevented to the outward appearance, makes a round trip to clean 50 times on the surface with 500g strength 1 minute with the cloth that dips in the alcohol and does not have the glue color, does not have smudginess.
The utility model discloses a high low resistance light heat dissipation sticky tape is to SUS304 board peel strength > 2500g/inch under normal atmospheric temperature.
Utility model's high low resistance light heat dissipation sticky tape is > 72H to SUS304 board confining force 1KG weight under normal atmospheric temperature, and high temperature 85 ℃ is > 24 hours to SUS board confining force 1000g weight.
The utility model discloses a high low resistance light heat dissipation sticky tape shielding effectiveness is more than or equal to 95dB.
The utility model discloses a high low resistance light heat dissipation sticky tape resistance 25.4 x 25.4mm < 0.01 omega.
The utility model discloses a high low resistance light heat dissipation sticky tape is 80 ℃ at high temperature to SUS board 90 retentions 200g weights > 1 hour.
Utility model's high low resistance light heat dissipation sticky tape is 25.4mm x 80mm at the material size and puts 24hrs of stewing under 23 ℃/50% RH condition earlier, and no perk is put into again and toasts in the 80 ℃ oven and worsens, and the time is 4hrs, and the height of perk is < 1mm.
The utility model discloses a high low resistance light heat dissipation sticky tape coefficient of heat conductivity 300W/mK.
The utility model discloses a high low resistance light heat dissipation sticky tape does not have layering, no fold, surface coating adhesive force between each lamination structure after 85 ℃/85% humidity/240 hours are ageing.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
- The high-viscosity low-resistance light heat dissipation adhesive tape for the FPC curved surface comprises a PET substrate layer (2), and is characterized in that: one side of PET substrate layer (2) is provided with black polyester cover layer (1), the opposite side of PET substrate layer (2) is provided with black polyurethane glue film layer (3), PET substrate layer (2) one side is kept away from in black polyurethane glue film layer (3) and is provided with copper aluminium composite (4), copper aluminium composite (4) and aluminium face are towards PET substrate layer (2), the copper face of copper aluminium composite (4) is provided with modified acrylic acid low-conductivity adhesive (5), modified acrylic acid low-conductivity adhesive (5) are kept away from copper aluminium composite (4) one side and are provided with from type layer (6).
- 2. A high-viscosity low-resistance light heat-dissipating tape for a curved surface of an FPC as claimed in claim 1, characterized in that: the PET substrate layer (2) may be a film grade polyester layer, a bottle grade polyester layer or a fiber grade polyester layer.
- 3. A high-viscosity low-resistance light heat-dissipating tape for a curved surface of an FPC as claimed in claim 2, characterized in that: the thickness of the PET substrate layer (2) is 0.0045-0.03 mm.
- 4. A high-viscosity low-resistance light heat-dissipating tape for a curved surface of an FPC as claimed in claim 3, wherein: the thickness of black polyester cover layer (1) is 5 ~ 10um, the thickness of black polyurethane glue film layer (3) is 3 ~ 5um.
- 5. A high-viscosity low-resistance light heat-dissipating tape for a curved surface of an FPC as claimed in claim 3, wherein: the thickness of the copper layer in the copper-aluminum composite material (4) accounts for 15% of the whole copper-aluminum composite material (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223360525.5U CN218842031U (en) | 2022-12-14 | 2022-12-14 | High-viscosity low-resistance light heat dissipation adhesive tape for FPC curved surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223360525.5U CN218842031U (en) | 2022-12-14 | 2022-12-14 | High-viscosity low-resistance light heat dissipation adhesive tape for FPC curved surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218842031U true CN218842031U (en) | 2023-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223360525.5U Active CN218842031U (en) | 2022-12-14 | 2022-12-14 | High-viscosity low-resistance light heat dissipation adhesive tape for FPC curved surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218842031U (en) |
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2022
- 2022-12-14 CN CN202223360525.5U patent/CN218842031U/en active Active
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