CN208562207U - A kind of ultra-thin electromagnetic shielding tape - Google Patents
A kind of ultra-thin electromagnetic shielding tape Download PDFInfo
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- CN208562207U CN208562207U CN201820902355.3U CN201820902355U CN208562207U CN 208562207 U CN208562207 U CN 208562207U CN 201820902355 U CN201820902355 U CN 201820902355U CN 208562207 U CN208562207 U CN 208562207U
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- conductive adhesive
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Abstract
The utility model discloses a kind of ultra-thin electromagnetic shielding tapes, comprising: release film, conductive adhesive layer, electro-magnetic screen layer and graphene layer, conductive adhesive layer and graphene layer are respectively provided at electro-magnetic screen layer two sides, and release film is covered on conductive adhesive layer；The conductive adhesive layer material is graphene colloid, and graphene colloid is coated on electro-magnetic screen layer；The graphene layer is overlayed on electro-magnetic screen layer using magnetron sputtering mode.By the above-mentioned means, the utility model chemical stability is high, electric conductivity is high, and it can be conductive in X, Y and Z-direction, electromagnetic exposure can be effectively prevented in z-direction.
Description
Technical field
The utility model relates to shielding tape fields, more particularly to a kind of ultra-thin electromagnetic shielding tape.
Background technique
Shielding tape is the metal foil or conductive fabric of a kind of band conduction gum, can be with any metal component to be bonded
Mode form galvanic circle, to achieve the purpose that shielding electromagnetic interference.It is that cost is relatively low for one kind, effect is preferable, user
Just shielding material.
The electric conductor of the conducting resinl of existing shielding tape is usually to use charcoal, metal, is primarily present following problem:
Charcoal class material processing difficulties, the larger more difficult crushing of particle, electric conductivity are unstable；Metal such as Ag, Cu, Ni, Au, this kind of electric conductivity
It is good, but such as Au, price are higher；For Ag vulnerable to chemical attacks, Cu, Ni are oxidizable, will lead to resistivity raising, influence to shield
Performance.The above material is can be normal in X, Y-direction electric conductivity, but electric conductivity is poor in z-direction, is actually using
When, it will appear electromagnetic exposure in Z-direction, influence information security.
Utility model content
The utility model mainly solving the technical problems that provide a kind of ultra-thin electromagnetic shielding tape, chemical stability is high,
Electric conductivity is high, can be conductive in X, Y and Z-direction, can effectively prevent electromagnetic exposure in z-direction.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing a kind of ultra-thin electromagnetic screen
Cover adhesive tape, comprising: release film, conductive adhesive layer, electro-magnetic screen layer and graphene layer, conductive adhesive layer and graphene layer are respectively provided at electricity
Magnetic masking layer two sides, release film are covered on conductive adhesive layer；The conductive adhesive layer material is graphene colloid, and graphene colloid applies
It overlays on electro-magnetic screen layer；The graphene layer is overlayed on electro-magnetic screen layer using magnetron sputtering mode.
Further, the electro-magnetic screen layer is flexible copper layers of foil.
Further, the flexible copper clad thickness degree is more than or equal to 6um.
Further, the graphene colloid is coated in electromagnetic shielding layer surface using the coating method of roller coating, letterpress,
Drying forms conductive adhesive layer.
Further, the conductive adhesive layer is with a thickness of 5~20um.
Further, the release film is with a thickness of 25~100um.
The beneficial effects of the utility model are: copper foil surface is covered with graphene layer in the utility model, graphene has very
Outstanding conduction property, and chemical stability is high, protects copper foil layer while enhancing electromagnetic shielding performance, prevents metallic copper
Foil oxidation causes electric conductivity decline and then shielding properties decline；It, can be in X, Y using the conductive adhesive layer containing graphene ingredient
It will can efficiently be conducted by the electric current of shielding object to copper foil layer, and then realize efficient when in use with Z-direction conduction
Electromagnetic shielding.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of one preferred embodiment of ultra-thin electromagnetic shielding tape of the utility model.
The components in the drawings are labeled as follows: 1, release film；2, conductive adhesive layer；3, electro-magnetic screen layer；4, graphene layer.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
Referring to Fig. 1, the utility model embodiment includes:
A kind of ultra-thin electromagnetic shielding tape, comprising: release film 1, conductive adhesive layer 2, electro-magnetic screen layer 3 and graphene layer 4 are led
Electric glue-line 2 and graphene layer 4 are respectively provided at 3 two sides of electro-magnetic screen layer, and release film 1 is covered on conductive adhesive layer；Electro-magnetic screen layer
For flexible copper layers of foil, with a thickness of 6um, release film is with a thickness of 50um.2 material of conductive adhesive layer is graphene colloid, graphene colloid
For the epoxy resin added with graphene, graphene colloid is dried by the aqueous epoxy resin emulsion of containing graphene, contains stone
The aqueous epoxy resin emulsion of black alkene includes 50% graphene, 30~40% epoxy resin, 10~20% alcohols solvent；
The aqueous epoxy resin emulsion of containing graphene is applied to the one side of flexible copper layers of foil by the way of roller coating, and roll coating speeds control exists
3~5m/min, 40~50 DEG C of roller coating axis temperature are coated with and pass through IR constant temperature oven after the completion, and 80~90 DEG C of temperature, baking 20~
Alcohols solvent is volatilized completely, obtains conductive adhesive layer, conductive adhesive layer encloses release film with a thickness of 5~20um by 30min；Graphene
Layer is covered on electro-magnetic screen layer using magnetron sputtering mode, i.e., in the non-conductive glue surface of copper foil, forms the stone with a thickness of 0.2um
Black alkene layer.The sheet resistance of the utility model≤5 Ω.Electromagnet shield effect >=60db.
Copper foil surface is covered with graphene layer in the utility model, and graphene has very outstanding conduction property, and chemistry is steady
Qualitative height protects copper foil layer while enhancing electromagnetic shielding performance, prevents metal copper foil oxidation from electric conductivity being caused to decline
And then shielding properties decline；, can be conductive in X, Y and Z-direction using the conductive adhesive layer containing graphene ingredient, when in use,
It will can efficiently be conducted by the electric current of shielding object to copper foil layer, and then realize efficient electromagnetic shielding.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure made based on the specification and figures of the utility model is applied directly or indirectly in other relevant technologies
Field is also included in the patent protection scope of the utility model.
Claims (6)
1. a kind of ultra-thin electromagnetic shielding tape characterized by comprising release film, conductive adhesive layer, electro-magnetic screen layer and graphene
Layer, conductive adhesive layer and graphene layer are respectively provided at electro-magnetic screen layer two sides, and release film is covered on conductive adhesive layer；The conducting resinl
Layer material is graphene colloid, and graphene colloid is coated on electro-magnetic screen layer；The graphene layer uses magnetron sputtering mode
It overlays on electro-magnetic screen layer.
2. a kind of ultra-thin electromagnetic shielding tape according to claim 1, it is characterised in that: the electro-magnetic screen layer is flexibility
Copper foil layer.
3. a kind of ultra-thin electromagnetic shielding tape according to claim 2, it is characterised in that: the flexible copper clad thickness degree is big
In equal to 6um.
4. a kind of ultra-thin electromagnetic shielding tape according to claim 1, it is characterised in that: the graphene colloid uses roller
Apply, the coating method of letterpress is coated in electromagnetic shielding layer surface, drying forms conductive adhesive layer.
5. a kind of ultra-thin electromagnetic shielding tape according to claim 4, it is characterised in that: the conductive adhesive layer is with a thickness of 5
~20um.
6. a kind of ultra-thin electromagnetic shielding tape according to claim 1, it is characterised in that: the release film with a thickness of 25~
100um。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820902355.3U CN208562207U (en) | 2018-06-12 | 2018-06-12 | A kind of ultra-thin electromagnetic shielding tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820902355.3U CN208562207U (en) | 2018-06-12 | 2018-06-12 | A kind of ultra-thin electromagnetic shielding tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208562207U true CN208562207U (en) | 2019-03-01 |
Family
ID=65484639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820902355.3U Active CN208562207U (en) | 2018-06-12 | 2018-06-12 | A kind of ultra-thin electromagnetic shielding tape |
Country Status (1)
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| CN (1) | CN208562207U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110418560A (en) * | 2019-06-10 | 2019-11-05 | 江西蓝海芯科技集团有限公司 | A kind of graphene-based electromagnetic shielding adhesive tape and preparation method thereof |
-
2018
- 2018-06-12 CN CN201820902355.3U patent/CN208562207U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110418560A (en) * | 2019-06-10 | 2019-11-05 | 江西蓝海芯科技集团有限公司 | A kind of graphene-based electromagnetic shielding adhesive tape and preparation method thereof |
| CN110418560B (en) * | 2019-06-10 | 2020-10-23 | 江西蓝海芯科技集团有限公司 | Graphene-based electromagnetic shielding adhesive tape and preparation method thereof |
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