CN108848662A - A kind of fiber electromagnetic shielding film - Google Patents
A kind of fiber electromagnetic shielding film Download PDFInfo
- Publication number
- CN108848662A CN108848662A CN201810885990.XA CN201810885990A CN108848662A CN 108848662 A CN108848662 A CN 108848662A CN 201810885990 A CN201810885990 A CN 201810885990A CN 108848662 A CN108848662 A CN 108848662A
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- China
- Prior art keywords
- composite powder
- layer
- polyester
- fiber
- electromagnetic shielding
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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
- H05K9/009—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive fibres, e.g. metal fibres, carbon fibres, metallised textile fibres, electro-conductive mesh, woven, non-woven mat, fleece, cross-linked
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/212—Electromagnetic interference shielding
Abstract
This application involves a kind of fiber electromagnetic shielding film, including carrier layer, first screen layer and insulating layer three-decker, the first screen layer is layer of polyester fiber；The carrier layer, first screen layer and insulating layer are successively folded set from the bottom to top, and the carrying layer surface covers first screen layer, and the first screen layer surface covers insulating layer.
Description
Technical field
This application involves electromagnetic shielding technical field of membrane more particularly to a kind of fiber electromagnetic shielding films.
Background technique
Existing shielding material is copper aluminum foil and adhesive tape, and because its is cheap, materials are easy, and good shield effectiveness is always each family
The preferred material of Electronics Factory, but only there is single layer structure, there are difficult processings, and it is not pliable, it can be using position
Limitation.And single layer structure is unable to satisfy the demand of some personalizations of designer, meets wanting for user to design
The shielding material asked, manufacturing enterprise can add remaining auxiliary material, this will virtually improve the cost of production.And copper aluminium base due to
Its metallicity easily generates secondary interference to other electronic components in small space, so that scheme can not be carried out, in addition
Aluminum bronze all has futures, and price is larger by market clout, to keep its finished product price unstable, risk is larger.
Summary of the invention
The present invention is intended to provide a kind of fiber electromagnetic shielding film, set forth above to solve the problems, such as.
A kind of fiber electromagnetic shielding film, including carrier layer, first screen layer and insulation are provided in the embodiment of the present invention
Layer three-decker, the first screen layer are layer of polyester fiber；The carrier layer, first screen layer and insulating layer are from the bottom to top
It successively folds and sets, the carrying layer surface covers first screen layer, and the first screen layer surface covers insulating layer.
The technical solution that the embodiment of the present invention provides can include the following benefits：
First screen layer of the present invention is layer of polyester fiber, and the layer of polyester fiber is polyester fiber composition, and the polyester is fine
Dimension prepares compound polyester master particle, then through melt spinning system by addition composite powder M, composite powder N and promotor first
Standby above-mentioned polyester fiber has promotor, which includes nano silver and plating except composite powder M and composite powder N
Silver-colored carbon dust, the effect of promotor are that buffer function is played in the performance to the respective effect of composite powder M and composite powder N, can
Antibacterial and electro-magnetic screen function are balanced, unexpected beneficial effect is produced.
The additional aspect of the application and advantage will be set forth in part in the description, and will partially become from the following description
It obtains obviously, or recognized by the practice of the application.It should be understood that above general description and following detailed description are only
Be it is exemplary and explanatory, the application can not be limited.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings, but the embodiment in attached drawing is not constituted to any limit of the invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is the structural schematic diagram of fiber electromagnetic shielding film of the present invention；
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
Embodiments herein is related to a kind of fiber electromagnetic shielding film, in conjunction with Fig. 1, including carrier layer 1, first screen layer 2
With 3 three-decker of insulating layer, the first screen layer 2 is layer of polyester fiber；The carrier layer 1, first screen layer 2 and insulation
Layer 3 is successively folded set from the bottom to top, and 1 surface of carrier layer covers first screen layer 2, and 2 surface of first screen layer covers absolutely
Edge layer 3.
The insulating layer is cured epoxy resin layer.
The carrier layer is polyethylene terephthalate or polycarbonate film.
The layer of polyester fiber is polyester fiber composition, which passes through addition composite powder M, composite powder N
And promotor, compound polyester master particle is prepared first, and above-mentioned polyester fiber is then prepared through melt spinning.
In terms of material content, in above-mentioned polyester fiber, raw material includes according to mass percent：3-7%'s is compound
The polyester of composite powder N, 1-5% promotor of powder M, 9-20%, 68-87%.
Wherein, above-mentioned composite powder M is constituted by the following substances：Carrier, AgO nano particle and CuO nano particle；It is compound
Each substance is according to mass fraction in powder M：Carrier 12 part, 30 parts of AgO nano particle and 25 parts of CuO nano particle；Specifically,
The partial size of above-mentioned each substance is：1 μm of carrier, AgO nano particle 100nm, CuO nano particle 200nm.Wherein, above-mentioned composite powder
Expect that N is constituted by the following substances：Carrier, Ag packet pearl powder particle；Each substance is according to mass fraction in composite powder N：Carrier 2
Part, 5 parts of particle of Ag packet pearl powder；Specifically, the partial size of above-mentioned substance is：1 μm of carrier, 1 μm of particle of Ag packet pearl powder；Wherein,
Above-mentioned promotor is constituted by the following substances：Nano silver, silver-plated carbon dust；Each substance is according to mass fraction in promotor：Nanometer
5 parts, 7 parts of silver-plated carbon dust of silver；Specifically, the partial size of above-mentioned each substance is：Nano silver 20nm, silver-plated carbon dust 500nm.
More specifically, the carrier in above-mentioned composite powder M and composite powder N is silver doped zinc oxide nano piece, the nanometer
For piece with a thickness of 50nm, diameter is 1 μm；Wherein, silver-colored doping is 2%, and its ratio be the molar ratios of Ag and Zn.
In disclosed technique scheme, except composite powder M and composite powder N, there is promotor, which includes receiving
Meter Yin and silver-plated carbon dust, the effect of promotor are that the performance to the respective effect of composite powder M and composite powder N is played buffering and made
With can balance antibacterial and electro-magnetic screen function, produce unexpected beneficial effect.
In disclosed technique scheme, carrier is added in composite powder M and composite powder N respectively, which is one kind
Silver doped zinc oxide nano laminated structure is prepared using mixed solvent method, which is presented two-dimensional sheet structure；Oxidation
Zinc is a kind of important semiconductor material, all has extensive use in the fields such as air-sensitive, pressure-sensitive, catalysis, luminous, antibacterial, this
Apply in technical solution, using silver doped zinc oxide nano piece as carrier, on the one hand, it can be with composite powder M, composite powder
Remaining powder combines in N, as dispersing agent, increases dispersibility, on the other hand, in composite powder M, silver doped zinc oxide can
It is cooperateed with silver oxide and copper oxide and plays antibacterial action, substantially increase antibacterial effect；In composite powder N, Ag doping oxidation
Zinc nanometer sheet can play reflex to electromagnetic wave, increase absorption of the Ag packet pearl powder particle to electromagnetic wave, to mention significantly
High effectiveness plays unexpected technical effect.
The application is related to the preparation method of the polyester fiber in second aspect：
Step 1 prepares composite powder M, prepares composite powder N；
Step 2 prepares polyester fiber；
It is specific as follows：
Embodiment 1
Step 1, it measures ethylene glycol and deionized water is respectively 30ml, 10ml, it is mixed evenly in beaker, so
The zinc acetate of 2g and the urea of 0.5g are added afterwards, continues stirring to whole dissolutions, adds silver nitrate, mixed solution is transferred to
In hydrothermal reaction kettle, 5h is reacted in sealing at 160 DEG C, and natural cooling cools down after reaction, and centrifuge separation spends product
Ionized water and ethyl alcohol clean up, and calcine 2h in 450 DEG C of Muffle furnaces after dry, obtain silver doped zinc oxide nano piece powder,
As carrier；
Carrier, AgO nano particle, CuO nano particle and titanate coupling agent are added in example water, are sufficiently stirred
Uniformly, slurry A is obtained, is then baked to, is pulverized, is i.e. composite powder M；
Firstly, the pearl powder for taking 50g to clean up, adds it to the mercaptopropyi trimethoxy silane of 2000ml, 5%
In solution, flow back 6h at 60 DEG C, after cooling, clean up, obtains modified pearl powder；Take 200ml glucose reducing solution, Xiang Qi
Middle addition 12g polyvinylpyrrolidone, adds above-mentioned modified pearl powder 8g, high-speed stirred 30min, then slowly the silver-colored ammonia of dropwise addition is molten
Liquid 200ml, adjusting pH value is 13.2, is sufficiently stirred, until the reaction is complete, reaction product deionized water ultrasonic cleaning 3 times, and so
90 DEG C of vacuum drying 2h afterwards obtain silver-colored packet pearl powder core-shell structure particle；
Carrier, Ag packet pearl powder particle and titanate coupling agent are added in example water, stirs, obtains
Slurry B, is then baked to, and pulverizes, i.e. composite powder N；
Step 2, polyester fiber is prepared：It include composite powder M, composite powder N, promotor, essence in polyester master particle to benzene two
Formic acid, ethylene glycol, catalyst aid, wherein catalyst aid is antimony oxide；The molar ratio of p-phthalic acid and ethylene glycol is excellent
It is selected as 1:1.3；Polyester master particle preparation method is：Firstly, composite powder M, composite powder N, promotor and ethylene glycol are mixed, stir
Ultrasound 5h at room temperature after mixing, obtains mixed liquor；Then mixed liquor and p-phthalic acid, catalyst aid are esterified, are gathered
It closes, obtains polyester master particle, wherein esterification temperature is 280 DEG C, and pressure 400kPa, esterification yield contracts when reaching greater than 93.5%
Poly- reaction, condensation temperature are 300 DEG C, are evacuated to 50MPa, when polycondensation to inherent viscosity is 0.65, discharging, and blank；By polyester
Master batch melting, is then fed into filter and is filtered, after metering, into spinning pack, the tow that will be sprayed through cooling, on
Oil is wound into preoriented yarn after deflector roll, wherein spinning temperature is 290 DEG C, spinning speed 3200m/min；Polyester preorientation
Silk can be prepared into compound polyester functional fibre after a roller, hot tank, two rollers, scroll tube, winding, wherein draft speed is
600m/min, draw ratio 3.1, a roll temperature are 90 DEG C, and two roll temperatures are 140 DEG C.
In the polyester fiber of the present embodiment, raw material includes according to mass percent：3% composite powder M, 9% are answered
Close powder N, 1% promotor, 87% polyester.
Embodiment 2
Embodiment 2 on that basis of example 1, the difference is that, in polyester fiber, raw material is according to mass percent packet
It includes：7% composite powder M, 20% composite powder N, 5% promotor, 68% polyester；And composite powder M is by following object
Texture at：AgO nano particle and CuO nano particle do not have carrier in i.e. composite powder M；
Embodiment 3
Embodiment 3 on that basis of example 1, the difference is that, in polyester fiber, raw material is according to mass percent packet
It includes：5% composite powder M, 15% composite powder N, 3% promotor, 77% polyester；And it is not carried in composite powder N
Body.
Embodiment 4
Embodiment 3 on that basis of example 1, the difference is that, in polyester fiber, raw material is according to mass percent packet
It includes：5% composite powder M, 15% composite powder N, 3% promotor, 77% polyester；And it is not set in the polyester fiber
Set promotor.
Polyester fiber prepared by embodiment 1-4 is denoted as No. 1, No. 2, No. 3, No. 4 respectively, then tests it respectively in electricity
Magnetic wave wave band is the shield effectiveness under 30-1500MHz, and it is as follows to obtain result：
No. 1 is 36-62dB, and No. 2 are 31-56dB, and No. 3 are 16-24dB, and No. 4 are 25-34dB.
The foregoing is merely preferred modes of the invention, are not intended to limit the invention, all in spirit and original of the invention
Within then, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of fiber electromagnetic shielding film, which is characterized in that including carrier layer, first screen layer and insulating layer three-decker, institute
The first screen layer stated is layer of polyester fiber；The carrier layer, first screen layer and insulating layer are successively folded set from the bottom to top, described
Carrying layer surface covers first screen layer, and the first screen layer surface covers insulating layer.
2. a kind of fiber electromagnetic shielding film according to claim 1, which is characterized in that the insulating layer is cured epoxy
Resin layer.
3. a kind of fiber electromagnetic shielding film according to claim 1, which is characterized in that the carrier layer is poly- to benzene two
Formic acid glycol ester or polycarbonate film.
4. a kind of fiber electromagnetic shielding film according to claim 1, which is characterized in that the layer of polyester fiber is polyester
Fiber is constituted, which it is female to prepare compound polyester by addition composite powder M, composite powder N and promotor first
Grain, then prepares above-mentioned compound polyester functional fibre through melt spinning.
5. a kind of fiber electromagnetic shielding film according to claim 4, which is characterized in that in the polyester fiber, raw material
Include according to mass percent：Composite powder N, 1-5% promotor of composite powder M, 9-20% of 3-7%, 68-87% it is poly-
Ester.
6. a kind of fiber electromagnetic shielding film according to claim 5, which is characterized in that the composite powder M is by following object
Texture at：Carrier, AgO nano particle and CuO nano particle；The composite powder N is constituted by the following substances：Carrier, Ag packet are precious
Pearl powder；The promotor is constituted by the following substances：Nano silver, silver-plated carbon dust.
7. a kind of fiber electromagnetic shielding film according to claim 6, which is characterized in that the carrier is silver doped zinc oxide
Nanometer sheet, the nanometer sheet thickness are 50nm, and diameter is 1 μm；Wherein, silver-colored doping is 2%, and its ratio be moles of Ag and Zn
Than.
8. a kind of fiber electromagnetic shielding film according to claim 4, which is characterized in that the preparation side of the polyester fiber
Method：
Step 1 prepares composite powder M, prepares composite powder N；
Step 2 prepares polyester fiber；
Wherein, step 2, polyester fiber is prepared：It include composite powder M, composite powder N, promotor, essence in polyester master particle to benzene two
Formic acid, ethylene glycol, catalyst aid, wherein catalyst aid is antimony oxide；The molar ratio of p-phthalic acid and ethylene glycol is excellent
It is selected as 1:1.3；Polyester master particle preparation method is：Firstly, composite powder M, composite powder N, promotor and ethylene glycol are mixed, stir
Ultrasound 5h at room temperature after mixing, obtains mixed liquor；Then mixed liquor and p-phthalic acid, catalyst aid are esterified, are gathered
It closes, obtains polyester master particle, wherein esterification temperature is 280 DEG C, and pressure 400kPa, esterification yield contracts when reaching greater than 93.5%
Poly- reaction, condensation temperature are 300 DEG C, are evacuated to 50MPa, when polycondensation to inherent viscosity is 0.65, discharging, and blank；By polyester
Master batch melting, is then fed into filter and is filtered, after metering, into spinning pack, the tow that will be sprayed through cooling, on
Oil is wound into preoriented yarn after deflector roll, wherein spinning temperature is 290 DEG C, spinning speed 3200m/min；Polyester preorientation
Silk can be prepared into compound polyester functional fibre after a roller, hot tank, two rollers, scroll tube, winding, wherein draft speed is
600m/min, draw ratio 3.1, a roll temperature are 90 DEG C, and two roll temperatures are 140 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810885990.XA CN108848662A (en) | 2018-08-06 | 2018-08-06 | A kind of fiber electromagnetic shielding film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810885990.XA CN108848662A (en) | 2018-08-06 | 2018-08-06 | A kind of fiber electromagnetic shielding film |
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| CN108848662A true CN108848662A (en) | 2018-11-20 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810885990.XA Pending CN108848662A (en) | 2018-08-06 | 2018-08-06 | A kind of fiber electromagnetic shielding film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111276894A (en) * | 2020-03-18 | 2020-06-12 | 南通苏源恒炫电气有限公司 | Layered anti-aging insulating cover for solid insulating ring main unit |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1372020A (en) * | 2002-03-29 | 2002-10-02 | 东华大学 | Anti-electrostatic nano compound polyester fibre and making method thereof |
| CN202635003U (en) * | 2012-06-21 | 2012-12-26 | 广州方邦电子有限公司 | Ultrathin shielding film with high shielding effectiveness |
| CN103923337A (en) * | 2014-04-30 | 2014-07-16 | 湖南兆恒材料科技有限公司 | Composite polymethacrylimide foam wave absorption material |
| CN204206720U (en) * | 2014-11-10 | 2015-03-11 | 江苏元京电子科技有限公司 | A kind of nano level metal electromagnetic shielding film |
| CN104853577A (en) * | 2015-05-13 | 2015-08-19 | 东莞市万丰纳米材料有限公司 | Ultrathin electromagnetic shielding membrane and production technology thereof |
| CN204761953U (en) * | 2015-07-05 | 2015-11-11 | 江松柏 | Electromagnetic wave shielding net and mounting structure thereof |
| CN205872770U (en) * | 2015-11-12 | 2017-01-11 | 太仓市其盛化纤厂 | Prevent electrostatic shield bag |
| CN106604623A (en) * | 2016-12-13 | 2017-04-26 | 苏州城邦达力材料科技有限公司 | Electromagnetic shielding film and preparation method thereof |
| CN106827735A (en) * | 2017-02-06 | 2017-06-13 | 北京邦维高科特种纺织品有限责任公司 | A kind of fire-retardant electromagnetic shielding composite material of gas defence, preparation method and product |
| CN107811758A (en) * | 2017-11-30 | 2018-03-20 | 潘柏霖 | A kind of AGMA with antibacterial mite-removing effect |
-
2018
- 2018-08-06 CN CN201810885990.XA patent/CN108848662A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1372020A (en) * | 2002-03-29 | 2002-10-02 | 东华大学 | Anti-electrostatic nano compound polyester fibre and making method thereof |
| CN202635003U (en) * | 2012-06-21 | 2012-12-26 | 广州方邦电子有限公司 | Ultrathin shielding film with high shielding effectiveness |
| CN103923337A (en) * | 2014-04-30 | 2014-07-16 | 湖南兆恒材料科技有限公司 | Composite polymethacrylimide foam wave absorption material |
| CN204206720U (en) * | 2014-11-10 | 2015-03-11 | 江苏元京电子科技有限公司 | A kind of nano level metal electromagnetic shielding film |
| CN104853577A (en) * | 2015-05-13 | 2015-08-19 | 东莞市万丰纳米材料有限公司 | Ultrathin electromagnetic shielding membrane and production technology thereof |
| CN204761953U (en) * | 2015-07-05 | 2015-11-11 | 江松柏 | Electromagnetic wave shielding net and mounting structure thereof |
| CN205872770U (en) * | 2015-11-12 | 2017-01-11 | 太仓市其盛化纤厂 | Prevent electrostatic shield bag |
| CN106604623A (en) * | 2016-12-13 | 2017-04-26 | 苏州城邦达力材料科技有限公司 | Electromagnetic shielding film and preparation method thereof |
| CN106827735A (en) * | 2017-02-06 | 2017-06-13 | 北京邦维高科特种纺织品有限责任公司 | A kind of fire-retardant electromagnetic shielding composite material of gas defence, preparation method and product |
| CN107811758A (en) * | 2017-11-30 | 2018-03-20 | 潘柏霖 | A kind of AGMA with antibacterial mite-removing effect |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111276894A (en) * | 2020-03-18 | 2020-06-12 | 南通苏源恒炫电气有限公司 | Layered anti-aging insulating cover for solid insulating ring main unit |
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