CN106937522A - A kind of novel electromagnetic shielding film - Google Patents
A kind of novel electromagnetic shielding film Download PDFInfo
- Publication number
- CN106937522A CN106937522A CN201710216371.7A CN201710216371A CN106937522A CN 106937522 A CN106937522 A CN 106937522A CN 201710216371 A CN201710216371 A CN 201710216371A CN 106937522 A CN106937522 A CN 106937522A
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- Prior art keywords
- layer
- electromagnetic shielding
- shielding film
- metal net
- novel electromagnetic
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- 239000010410 layer Substances 0.000 claims abstract description 127
- 230000004888 barrier function Effects 0.000 claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 29
- 239000011241 protective layer Substances 0.000 claims abstract description 25
- 230000031700 light absorption Effects 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 229910001004 magnetic alloy Inorganic materials 0.000 claims description 7
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 7
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 7
- 229910052792 caesium Inorganic materials 0.000 claims description 6
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 230000005670 electromagnetic radiation Effects 0.000 claims description 4
- -1 polyethylene terephthalate Polymers 0.000 claims description 4
- SKRWFPLZQAAQSU-UHFFFAOYSA-N stibanylidynetin;hydrate Chemical compound O.[Sn].[Sb] SKRWFPLZQAAQSU-UHFFFAOYSA-N 0.000 claims description 4
- ZGDWHDKHJKZZIQ-UHFFFAOYSA-N cobalt nickel Chemical compound [Co].[Ni].[Ni].[Ni] ZGDWHDKHJKZZIQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000011231 conductive filler Substances 0.000 claims description 3
- 239000011889 copper foil Substances 0.000 claims description 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 239000009719 polyimide resin Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims 2
- 230000005284 excitation Effects 0.000 abstract description 4
- 238000002834 transmittance Methods 0.000 abstract description 4
- 230000035699 permeability Effects 0.000 abstract description 2
- 150000001875 compounds Chemical group 0.000 abstract 1
- 239000010408 film Substances 0.000 description 14
- 229910002804 graphite Inorganic materials 0.000 description 6
- 239000010439 graphite Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 239000013530 defoamer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- HZBAVWLZSLOCFR-UHFFFAOYSA-N oxosilane Chemical compound [SiH2]=O HZBAVWLZSLOCFR-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229910018553 Ni—O Inorganic materials 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 238000005234 chemical deposition Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- GVINIKRAUKVLRA-UHFFFAOYSA-N ethane-1,2-diol;naphthalene-1,2-dicarboxylic acid Chemical compound OCCO.C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 GVINIKRAUKVLRA-UHFFFAOYSA-N 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/0088—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a plurality of shielding layers; combining different shielding material structure
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/003—Light absorbing elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
Abstract
The invention discloses a kind of novel electromagnetic shielding film; including the basic unit, insulating barrier, metal net layer, incident layer and the protective layer that set gradually from the bottom to top; metal net layer has two and is in contact with the upper surface of insulating barrier and the lower surface of incident layer respectively; magnetic layer is provided between two metal net layers; the lower surface of insulating barrier connects with basic unit, and the lower surface of protective layer passes sequentially through light-absorption layer and near-infrared shielding layer connects with the upper surface of incident layer.The novel electromagnetic shielding film that the present invention is provided has multi-layer compound structure, with reference to high connductivity and high permeability material, while ensureing to have compared with high adhesion between insulating barrier and metal net layer, effectively prevent interference of the electromagnetic wave to adjacent lines and element, improve capability of electromagnetic shielding and light absorpting ability, excitation and high light transmittance are kept, is had broad application prospects.
Description
Technical field
The present invention relates to screened film field, and in particular to a kind of novel electromagnetic shielding film.
Background technology
With continuing to develop for urban informationization industry, increasing electronic product is using extensive or ultra-large collection
Into circuit, the electromagnetic wave that is mutually received between its internal electronic unit or all can be to electronic equipment from the electromagnetic wave of external reception
Running produce severe jamming, reduce operational efficiency, and because the electromagnetic spectrum that need to be shielded is more and more wider, electromagnetic shielding is imitated
Can requirement also more and more higher, homogenous material cannot meet the requirement of current electromagnetic shielding, and then promote electromagnetic shielding material
Material develops from homogenous material to the direction of composite.
Current electronic product casing adopts made of plastic mostly, with light, Bao He little advantage, but plastic products insulation
Body attribute makes effect that it does not possess shielding electromagnetic wave completely, therefore designs a kind of plastics with electromagnetic wave shielding function to electricity
The sustainable development of sub- product is significant.Additionally, to ensure there is shield effectiveness higher, the electromagnetism interference of in the market is thin
Film generally uses MULTILAYER COMPOSITE form more than two-layer, mainly by basic unit, insulating barrier, metal net layer, conductive adhesive layer and protective layer
Composition, but the drawbacks of mostly there is material and take, production cost high not proper with structure design, shielding properties and poor mechanical property.
The content of the invention
To solve the problems, such as shielding properties present in prior art and poor mechanical property, the present invention provides a kind of Novel electric
Magnetic shield film.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of novel electromagnetic shielding film, including basic unit, insulating barrier, metal net layer, incident layer and the guarantor that order is set from the bottom to top
Sheath, metal net layer is provided with two and connects with insulating barrier and incident layer respectively, and magnetic layer is provided between two metal net layers, enters
Penetrating layer includes the conductive filler that is made up of CNT and modified graphite, and the lower surface of protective layer passes sequentially through light-absorption layer and near red
Outer shielding layer connects with incident layer.
Further, the mass ratio of the CNT and modified graphite is 1：7-1：2.
Further, the specific insulation of the incident layer is 0 .1-10 Ω cm, and thickness is 300-800 nm.
Further, the insulating barrier is selected from any one in YD128 epoxy resin, polyimide resin.
Further, the metal net layer is any one of 1Cr18Ni9Ti, Copper Foil, nickel foil, for shielding electromagnetic radiation
With interfering for electromagnetism.
Further, the magnetic layer is in amorphous band, including cobalt nickel amorphous soft-magnetic alloy, iron nickel amorphous soft-magnetic alloy
Any one.
Further, the near-infrared shielding layer is selected from the one kind or two in nanometer caesium tungsten bronze powder, nano antimony tin oxide
The combination planted.
Further, the light-absorption layer is one or more in carbon black, graphite, iron oxide black, and the thickness of light-absorption layer is
10-400 nm。
Further, the basic unit and protective layer are respectively polyethylene terephthalate, poly- naphthalenedicarboxylic acid ethylene glycol
One or two in ester, the protective layer is release film layer.
Compared with prior art, the present invention has advantages below：
The invention discloses a kind of novel electromagnetic shielding film, including basic unit, insulating barrier, the wire netting for setting gradually from the bottom to top
Layer, incident layer and protective layer, metal net layer have two and are in contact with the upper surface of insulating barrier and the lower surface of incident layer respectively,
Magnetic layer is provided between two metal net layers, the lower surface of insulating barrier connects with basic unit, the lower surface of protective layer passes sequentially through suction
Photosphere and near-infrared shielding layer connect with the upper surface of incident layer.The novel electromagnetic shielding film that the present invention is provided has MULTILAYER COMPOSITE
Structure, with reference to high connductivity and high permeability material, has while ensureing and having compared with high adhesion between insulating barrier and metal net layer
Effect prevents interference of the electromagnetic wave to adjacent lines and element, improves capability of electromagnetic shielding and light absorpting ability, keep excitation and
High light transmittance, has broad application prospects.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Wherein, 1- basic units；2- insulating barriers；3- metal net layers；4- magnetic layers；5- incident layer；6- near-infrared shielding layers；7- extinctions
Layer；8- protective layers.
Specific embodiment
The present invention is further described with reference to specific embodiment.
Explanation of nouns：
Polyethylene terephthalate, English abbreviation：PET；PEN, English abbreviation：PEN.
As shown in figure 1, a kind of novel electromagnetic shielding film, including basic unit 1, insulating barrier 2, the gold for setting gradually from the bottom to top
Category stratum reticulare 3, incident layer 5 and protective layer 8, metal net layer 3 have two and respectively with the upper surface and incident layer 5 of insulating barrier 2 under
Surface is in contact, and magnetic layer 4 is provided between two metal net layers 3, and the lower surface of insulating barrier 2 connects with basic unit 1, protective layer 8
Lower surface passes sequentially through light-absorption layer 7 and near-infrared shielding layer 6 connects with the upper surface of incident layer 5.
Basic unit 1 and protective layer 8 are used to protect insulating barrier 2, metal net layer 3, magnetic layer 4, incident layer 5, near-infrared shielding layer 6
With light-absorption layer 7 from external environment pollution, the material of basic unit 1 and protective layer 8 respectively from polyethylene terephthalate,
One or two in PEN, protective layer 8 is release film layer, and insulating barrier 2 uses YD128 epoxy resin
And/or polyimide resin is prepared from, metal net layer 3 is any one in 1Cr18Ni9Ti, Copper Foil, nickel foil, for shielding
Electromagnetic radiation and electromagnetism are interfered, and the shape of metal net layer 3 is conducive to the coating of follow-up magnetic layer 4 in latticed, the two
Contact area it is bigger, the thickness of metal net layer 3 is no more than 3 μm, and magnetic layer 4 is amorphous band, including cobalt nickel amorphous soft magnet is closed
Gold, any one in iron nickel amorphous soft-magnetic alloy, away from interference source, incident layer 5 is filled out by conduction of CNT and modified graphite
Material, near-infrared shielding layer 6 is used to cover near infrared ray, it is to avoid disturbed with ambient electron device, the material of near-infrared shielding layer 6
, selected from one or two the combination in nanometer caesium tungsten bronze powder, nano antimony tin oxide, the particle diameter of nanometer caesium tungsten bronze powder is or not material
More than 20 nm, specific surface area is 60-80 m2/ g, can be obtained by buying, and it is the near infrared region of 800-1200 nm in wavelength
Domain has good absorbability, infrared at 950 nm in wavelength for the visible region of 380-780nm has high transmittance
Absorptivity can reach more than 90%, while the visible light transmissivity at 550 nm reaches more than 70%, light-absorption layer 7 is used to absorb orange
Light, it is to avoid image keeps excitation into orange red, and light-absorption layer 7 is one or more in carbon black, graphite, iron oxide black, extinction
The thickness of layer 7 is 10-400 nm.
Incident layer 5 by certain mass than CNT and graphite kneaded in YD128 epoxy resin and be prepared from, enter
The specific insulation of layer 5 is penetrated for 0.1-10 Ω cm, thickness is 300-800 nm, the mass ratio of CNT and graphite is 1：
7-1：2, can be coated directly onto on metal net layer 3.The present invention can add according to the actual requirements alcohols or anionic dispersing agents and/or
Defoamer promotes to be formed the homogeneous and smooth incident layer 5 of dispersion, alcohols dispersant include polyethylene glycol, ethanol, poly- second propylene or
Its derivative or mixture, anionic dispersing agents include carboxylate, sulfuric acid, SDS or derivatives thereof or mixing
Thing, defoamer is including the grafting of organic oxosilane, polyethers, silicon and ether, containing amine, imines and vinegar amine.
The present invention does not limit insulating barrier 2, metal net layer 3, incident layer 5, near-infrared shielding layer 6, light-absorption layer 7 and protective layer 8
Coating method, the mode of chemical deposition, evaporation, sputter, adhesive tape gluing or scraper for coating can be selected according to actual conditions.
Embodiment 1
As shown in figure 1, a kind of novel electromagnetic shielding film, including basic unit 1, the insulating barrier 2, wire netting for setting gradually from the bottom to top
Layer 3, incident layer 5 and protective layer 8, metal net layer 3 have two and the respectively upper surface with insulating barrier 2 and the lower surface of incident layer 5
It is in contact, magnetic layer 4 is provided between two metal net layers 3, the lower surface of insulating barrier 2 connects with basic unit 1, the following table of protective layer 8
Face passes sequentially through light-absorption layer 7 and near-infrared shielding layer 6 connects with the upper surface of incident layer 5.
Basic unit 1 is prepared from using PET, and PET has good toughness and tear resistance, and insulating barrier 2 uses YD128 rings
Oxygen tree fat is prepared from, and metal net layer 3 is nickel foil, shape in latticed, for shielding interfering for electromagnetic radiation and electromagnetism,
The thickness of nickel foil is 300 nm, and magnetic layer 4 is iron nickel amorphous soft-magnetic alloy, and away from interference source, thickness is 60 nm, incident layer 5 with
CNT and modified graphite are conductive filler, and near-infrared shielding layer 6 is used to cover near infrared ray, it is to avoid with ambient electron device
Disturb, the material of near-infrared shielding layer 6 is selected from by buying the nanometer caesium tungsten bronze powder and nano antimony tin oxide that obtain, is received
The particle diameter of rice caesium tungsten bronze powder is no more than 20 nm, and specific surface area is 60-80 m2/ g, it is the near of 800-1200 nm in wavelength
Region of ultra-red has good absorbability, in wavelength for the visible region of 380-780nm has high transmittance, in 950 nm
Place's ir-absorbance can reach more than 90%, while the visible light transmissivity at 550 nm reaches more than 70%, light-absorption layer 7 is used to inhale
Receive orange-colored light, it is to avoid image keeps excitation into orange red, and light-absorption layer 7 is carbon black, and the thickness of light-absorption layer 7 is 400 nm, protection
The material of layer 8 is PEN selected from PEN, and protective layer 8 is release film layer.
It is of the invention to prepare and use process：
By the YD128 epoxy resin insulating layers 2 that scraper for coating thickness is 3 μm first in basic unit 1, then it is placed on
Solidified in baking oven, hardening time is 1 min, solidification temperature is set as 200 °C, sputter is passed through on the insulating barrier 2 of solidification
Mode sequentially forms the three-decker of nickel foil, iron nickel amorphous soft-magnetic alloy and nickel foil；By CNT（20 percentage by weights）With
Graphite（100 percentage by weights）, polyethylene glycol（5 percentage by weights））With organic oxosilane（8 percentage by weights）In YD128 rings
Oxygen tree fat（280 percentage by weights）Middle mixing prepares incident layer 5, and the mass ratio of CNT and graphite is 1：5, incident layer
5 specific insulation is 0.2 Ω cm, and thickness is 300 nm, then incident layer 5 is coated directly onto the upper surface of nickel foil, nickel foil
The chemical bond of the covalent bond formed for Ni-O with the adhesion of insulating barrier 2 and incident layer 5, rather than simple mechanical snap,
Near-infrared shielding layer 6 is coated with by sputtering mode in incident layer 5, and carbon black is coated uniformly on near-infrared shielding layer 6, finally
It is fitted with PEN protective layers 8, the preparation of electromagnetic shielding film is completed.
Basic unit 1 and protective layer 8 are used to protect insulating barrier 2, metal net layer 3, magnetic layer 4, incident layer 5, near-infrared shielding layer 6
Include the pollution of molecule, water droplet etc. from external environment with light-absorption layer 7, protective layer is torn when using the electromagnetic shielding film
8 and it is in contact with element.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of novel electromagnetic shielding film, including the basic unit that order is set from the bottom to top（1）, insulating barrier（2）, metal net layer（3）、
Incident layer（5）And protective layer（8）, it is characterised in that the metal net layer（3）Be provided with two-layer and respectively with insulating barrier（2）With enter
Penetrate layer（5）Connect, two metal net layers（3）Between be provided with magnetic layer（4）, incident layer（5）Including by CNT and modified stone
The conductive filler that ink is constituted, protective layer（8）Lower surface pass sequentially through light-absorption layer（7）With near-infrared shielding layer（6）With incident layer
（5）Connect.
2. a kind of novel electromagnetic shielding film according to claim 1, it is characterised in that the CNT and modified graphite
Mass ratio be 1：7-1：2.
3. a kind of novel electromagnetic shielding film according to claim 1, it is characterised in that the incident layer（5）Volume electricity
Resistance rate is 0 .1-10 Ω cm, and thickness is 300-800 nm.
4. a kind of novel electromagnetic shielding film according to claim 1, it is characterised in that the insulating barrier（2）Selected from YD128
Any one in epoxy resin, polyimide resin.
5. a kind of novel electromagnetic shielding film according to claim 1, it is characterised in that the metal net layer（3）For
Any one of 1Cr18Ni9Ti, Copper Foil, nickel foil, for shielding interfering for electromagnetic radiation and electromagnetism.
6. a kind of novel electromagnetic shielding film according to claim 1, it is characterised in that the magnetic layer（4）It is amorphous ribbon
Any one in material, including cobalt nickel amorphous soft-magnetic alloy, iron nickel amorphous soft-magnetic alloy.
7. a kind of novel electromagnetic shielding film according to claim 1, it is characterised in that the near-infrared shielding layer（6）Choosing
One or two combination from nanometer caesium tungsten bronze powder, nano antimony tin oxide.
8. a kind of novel electromagnetic shielding film according to claim 1, it is characterised in that the light-absorption layer（7）It is carbon black, stone
One or more in ink, iron oxide black, light-absorption layer（7）Thickness be 10-400 nm.
9. a kind of novel electromagnetic shielding film according to claim 1, it is characterised in that the basic unit（1）And protective layer（8）
One or two respectively in polyethylene terephthalate, PEN, the protective layer（8）Be from
Type film layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710216371.7A CN106937522A (en) | 2017-04-05 | 2017-04-05 | A kind of novel electromagnetic shielding film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710216371.7A CN106937522A (en) | 2017-04-05 | 2017-04-05 | A kind of novel electromagnetic shielding film |
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|---|---|
| CN106937522A true CN106937522A (en) | 2017-07-07 |
Family
ID=59426226
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| CN201710216371.7A Pending CN106937522A (en) | 2017-04-05 | 2017-04-05 | A kind of novel electromagnetic shielding film |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019062089A1 (en) * | 2017-09-30 | 2019-04-04 | 中车青岛四方机车车辆股份有限公司 | Nickle plated carbon fiber film, manufacturing method therefor, shielding structure and preparation method therefor |
| CN110959316A (en) * | 2017-08-09 | 2020-04-03 | 拓自达电线株式会社 | Connection film, method for manufacturing shielded printed wiring board, and shielded printed wiring board |
| CN111148426A (en) * | 2020-01-16 | 2020-05-12 | 广东桑泰科技有限公司 | Electromagnetic shielding film with high shielding performance and production process thereof |
| CN111726931A (en) * | 2019-03-22 | 2020-09-29 | 3M创新有限公司 | Electronic component, electronic device comprising the electronic component, and method for manufacturing the electronic component |
| WO2021092713A1 (en) * | 2019-11-11 | 2021-05-20 | 常德鑫睿新材料有限公司 | Electromagnetic shielding composite material and preparation method therefor |
| CN113347864A (en) * | 2021-08-06 | 2021-09-03 | 成都立鑫新技术科技有限公司 | Protective film for preventing infrared laser information leakage and electromagnetic information leakage |
| CN114150236A (en) * | 2020-12-24 | 2022-03-08 | 佛山市中研非晶科技股份有限公司 | Iron-based amorphous alloy film, preparation method thereof, electromagnetic shielding film and equipment applying iron-based amorphous alloy film |
| CN116606569A (en) * | 2023-05-23 | 2023-08-18 | 中钞油墨有限公司 | Magnetic anti-counterfeiting ink composition and preparation method and application thereof |
| CN116606569B (en) * | 2023-05-23 | 2024-04-26 | 中钞油墨有限公司 | Magnetic anti-counterfeiting ink composition and preparation method and application thereof |
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| CN113347864A (en) * | 2021-08-06 | 2021-09-03 | 成都立鑫新技术科技有限公司 | Protective film for preventing infrared laser information leakage and electromagnetic information leakage |
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