CN207669898U - A kind of graphite copper foil composite membrane - Google Patents
A kind of graphite copper foil composite membrane Download PDFInfo
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- CN207669898U CN207669898U CN201721504084.8U CN201721504084U CN207669898U CN 207669898 U CN207669898 U CN 207669898U CN 201721504084 U CN201721504084 U CN 201721504084U CN 207669898 U CN207669898 U CN 207669898U
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- copper foil
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Abstract
The utility model is related to conductive and heat-conductive technical field of composite materials, disclose a kind of graphite copper foil composite membrane.The utility model includes PET insulation black films layer, copper foil layer, admixed graphite coating and PET release film layers successively from top to bottom, the admixed graphite coating spraying is in copper foil layer surface, it is Nian Jie by the first adhesive layer between the PET insulation black film layers and copper foil layer, it is Nian Jie by the second adhesive layer between the admixed graphite coating and PET release film layers.The utility model is simple in structure, has excellent heat conduction, heat dissipation effect and effectiveness.
Description
Technical field
The utility model is related to conductive and heat-conductive technical field of composite materials, more particularly to a kind of graphite copper foil composite membrane.
Background technology
With the application of microelectric technique, the upgrading of electronic product ramps up, increasingly to mini and highly integrated
Direction is developed, and because its power consumption constantly increases, requires increasingly the thermal conductivity of electronic product, thermal diffusivity and capability of electromagnetic shielding
Height also becomes the key factor of limit product performance.
Similar product currently on the market be mostly heat conduction and heat dissipation are carried out by metal material, wherein more the most commonly used is
Copper and aluminium, but the thermal coefficient of this homogenous material is to determine, the heat conduction and cooling effect that can play in the product by its from
Stature material limits, the requirement of the high-cooling property for being difficult to meet existing high-precision end product gradually.Meanwhile metal material believes electromagnetism
Number function of shielding it is limited, be highly prone to the electromagnetic interference of electromagnetic wave, there are more serious electromagnetic compatibility problems.And graphite material
Material, due to its distinctive low-density, high heat conduction and heat radiation coefficient and low thermal resistance, becomes emerging heat conduction and heat radiation material, but due to stone
Arrangement, bonding mode between the layer structure of ink material itself and each layer component, the fin thickness of formation are larger.Itself and gold
Belong to the composite material that film is formed also to bond by adhesive layer mostly, leverages the heat dissipation effect of composite material.
Utility model content
The utility model provides a kind of simple in structure, the height with excellent heat conduction, heat dissipation effect and effectiveness
The graphite copper foil composite membrane of electromagnetic wave shielding.
Technical problems to be solved are：Existing single heat sink material heat conduction, heat dissipation performance are poor, the shielding to electromagnetic signal
Function is limited；The composite material that graphite is formed with metal is bonded by adhesive layer mostly, leverages the heat dissipation of composite material
Effect.
In order to solve the above technical problems, the utility model adopts the following technical solution：
A kind of graphite copper foil composite membrane of the utility model includes PET insulation black films layer successively from top to bottom, copper foil layer, mixes
Close equadag coating and PET release film layers, the admixed graphite coating spraying in copper foil layer surface, the PET insulation black film layers with
It is bonded by the first adhesive layer between copper foil layer, passes through the second adhesive layer between the admixed graphite coating and PET release film layers
Bonding.
A kind of graphite copper foil composite membrane of the utility model, further, the first adhesive layer bonding and the second adhesive layer
It is acrylic acid adhesive.
A kind of graphite copper foil composite membrane of the utility model, further, the thickness of first adhesive layer is 4 μm.
A kind of graphite copper foil composite membrane of the utility model, further, the thickness of second adhesive layer is 7 μm.
A kind of graphite copper foil composite membrane of the utility model, further, the thickness of the PET insulation black film layer is 6 μm -10
μm。
A kind of graphite copper foil composite membrane of the utility model, further, the thickness of the copper foil layer is 25 μm.
A kind of graphite copper foil composite membrane of the utility model, further, the thickness of the admixed graphite coating is 0.03mm-
0.1mm。
A kind of graphite copper foil composite membrane of the utility model, further, the thickness of the PET release film layers is 0.03mm-
0.08mm。
A kind of graphite copper foil composite membrane of the utility model has the advantages that compared with prior art：
A kind of graphite copper foil composite membrane of the utility model utilizes the property of composite graphite coating and copper foil layer own material, together
The rapid coolings of Shi Shixian horizontally and vertically；It directly pastes the hair side side that admixed graphite coating is sprayed on to copper foil layer
It closes, avoids the use of bonded adhesives, substantially increase the heat conductivility and heat dissipation performance of composite material.
The composite graphite coating of the utility model is graphite powder, graphene, carbon nanotube and acrylic acid adhesive composition
Mixture substantially increases the heat conduction and heat dissipation performance of material itself.
The utility model is bonded with PET insulation black film layers on copper foil layer by acrylic acid adhesive, not only increases multiple
The insulation performance and capability of electromagnetic shielding of condensation material, and since PET insulation black film layers have excellent heat absorptivity, copper foil layer can
It quickly transfers heat on PET insulation black film layers, and diffuses in air, realize radiating and cooling.
A kind of graphite copper foil composite membrane of the utility model is described further below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model graphite copper foil composite membrane.
Reference numeral：
1-PET insulation black film layers；2- copper foil layers；3- admixed graphite coatings；4-PET release film layers；The first adhesive layers of 5-；6-
Second adhesive layer.
Specific implementation mode
As shown in Figure 1, a kind of graphite copper foil composite membrane of the utility model, from top to bottom respectively PET insulate black film layer 1,
Copper foil layer 2, admixed graphite coating 3 and PET release film layers 4, admixed graphite coating 3 are sprayed on the hair side side of copper foil layer 2, PET
It insulate Nian Jie by the first adhesive layer 5 between black film layer 1 and copper foil layer 2, leads between admixed graphite coating 3 and PET release film layers 4
The second adhesive layer 6 bonding is crossed, the first adhesive layer 5 bonding and the second adhesive layer 6 are acrylic acid adhesive；Wherein, admixed graphite
Coating 3 includes graphite powder, graphene, carbon nanotube and acrylic acid adhesive；The thickness of PET insulation black films layer 1 is 6 μm of -10 μ
The thickness of m, copper foil layer 2 are 25 μm, and the thickness of admixed graphite coating 3 is 0.03mm-0.1mm, and the thickness of PET release film layers 4 is
The thickness of 0.03mm-0.08mm, the first adhesive layer 5 are 4 μm, and the thickness of the second adhesive layer 6 is 7 μm.
A kind of preparation method of graphite copper foil composite membrane of the utility model, specifically includes following steps：
Step 1: the preparation of admixed graphite coating：Graphite powder, graphene and carbon nanotube are dissolved in respectively containing acrylic acid
In the organic solvent of adhesive, it is uniformly mixed, ultrasonic disperse 10-30min；
Step 2: the spraying of admixed graphite coating：The admixed graphite coating prepared is sprayed on to the hair side one of copper foil layer 2
Side, after curing 30-80min at 80-120 DEG C in nitrogen environment, cooling and drying；
Step 3: the both sides brushing acrylic acid adhesive of the composite material obtained by step 2；
Step 4: pasting PET insulation black films layer 1 close to 2 side of copper foil layer, viscous close to 3 side of admixed graphite coating
Paste PET release film layers 4.
According to above-mentioned preparation method, each layer thickness of composite membrane obtained is as shown in table 1.
Table 1 prepares the thickness of each layer structure of embodiment
Graphite copper foil composite membrane made from above-mentioned preparation embodiment is cut into the sample postpositive of 200mm × 200mm in nothing
The constant temperature of strong convection（25℃）In room, heat dissipation performance testing experiment is carried out using RNO thermal imaging systems.Tester signal receiving plane
And center line parallel with sample surfaces overlaps, distance 50cm.It peels sample bottom PET release films off, applies one in sample bottom
The heat source of a Same Efficieney, test sample surface temperature rises situation, specific as shown in table 2.
Simultaneously compare commercially available graphite film and copper foil, the graphite film of selection and the thickness of copper foil are 25 μm, using with it is above-mentioned
The identical test method of embodiment is prepared, the testing experiment of material heat dissipation performance is carried out, specific test result is as shown in table 2.
The heat dissipation performance test result of 2 testing example of table
As shown in Table 2,20 DEG C are no more than using the surface temperature of graphite copper foil composite membrane made from the above method, it is remote low
In pure copper foil or the surface temperature of graphite film.The utility model graphite copper foil composite membrane has excellent heat conduction and heat dissipation performance,
Simultaneously as the double layer screen effect of copper foil and PET insulation black films layer 1, the utility model graphite copper foil composite membrane has excellent
Insulating properties and capability of electromagnetic shielding.
Embodiment described above is only that preferred embodiments of the present invention are described, not to this practicality
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various modifications and improvement that the technical solution of utility model is made should all fall into the protection of the utility model claims book determination
In range.
Claims (8)
1. a kind of graphite copper foil composite membrane, it is characterised in that：Include PET insulation black film layers successively from top to bottom（1）, copper foil layer
（2）, admixed graphite coating（3）With PET release film layers（4）, the admixed graphite coating（3）It is sprayed on copper foil layer（2）Surface, institute
State PET insulation black film layers（1）With copper foil layer（2）Between pass through the first adhesive layer（5）Bonding, the admixed graphite coating（3）With
PET release film layers（4）Between pass through the second adhesive layer（6）Bonding.
2. a kind of graphite copper foil composite membrane according to claim 1, it is characterised in that：First adhesive layer（5）Bonding
With the second adhesive layer（6）It is acrylic acid adhesive.
3. a kind of graphite copper foil composite membrane according to claim 2, it is characterised in that：First adhesive layer（5）Thickness
Degree is 4 μm.
4. a kind of graphite copper foil composite membrane according to claim 3, it is characterised in that：Second adhesive layer（6）Thickness
Degree is 7 μm.
5. a kind of graphite copper foil composite membrane according to claim 1, it is characterised in that：The PET insulation black film layer（1）'s
Thickness is 6 μm -10 μm.
6. a kind of graphite copper foil composite membrane according to claim 1, it is characterised in that：The copper foil layer（2）Thickness be
25μm。
7. a kind of graphite copper foil composite membrane according to claim 1, it is characterised in that：The admixed graphite coating（3）'s
Thickness is 0.03mm-0.1mm.
8. a kind of graphite copper foil composite membrane according to claim 1, it is characterised in that：The PET release film layers（4）Thickness
Degree is 0.03mm-0.08mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721504084.8U CN207669898U (en) | 2017-11-13 | 2017-11-13 | A kind of graphite copper foil composite membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721504084.8U CN207669898U (en) | 2017-11-13 | 2017-11-13 | A kind of graphite copper foil composite membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207669898U true CN207669898U (en) | 2018-07-31 |
Family
ID=62964440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721504084.8U Active CN207669898U (en) | 2017-11-13 | 2017-11-13 | A kind of graphite copper foil composite membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207669898U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110128961A (en) * | 2019-03-28 | 2019-08-16 | 厦门美塑工贸有限公司 | A kind of multilayer film and multilayer film formation technique |
| CN113136146A (en) * | 2021-03-02 | 2021-07-20 | 浙江海泰新材料有限公司 | High-thermal-conductivity insulating adhesive tape |
-
2017
- 2017-11-13 CN CN201721504084.8U patent/CN207669898U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110128961A (en) * | 2019-03-28 | 2019-08-16 | 厦门美塑工贸有限公司 | A kind of multilayer film and multilayer film formation technique |
| CN113136146A (en) * | 2021-03-02 | 2021-07-20 | 浙江海泰新材料有限公司 | High-thermal-conductivity insulating adhesive tape |
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