CN105255383A - Stratified electromagnetic shielding material containing carbon nanotube network resin base, and preparation method thereof - Google Patents
Stratified electromagnetic shielding material containing carbon nanotube network resin base, and preparation method thereof Download PDFInfo
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- CN105255383A CN105255383A CN201510621819.4A CN201510621819A CN105255383A CN 105255383 A CN105255383 A CN 105255383A CN 201510621819 A CN201510621819 A CN 201510621819A CN 105255383 A CN105255383 A CN 105255383A
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Abstract
The invention discloses a stratified electromagnetic shielding material containing a carbon nanotube network resin base. The stratified electromagnetic shielding material comprises at least one electrical conductive layer; the electrical conductive layer is a carbon nanotube network prepared from carbon nanotubes; each of the two side surfaces of the electrical conductive layer is provided with a binder layer respectively; a resin containing magnetic ferrite particles is taken as a binder of the binder layers; the resin comprises a thermosetting resin and a thermoplastic resin; the thermosetting resin comprises epoxy resin, phenolic resin, and unsaturated polyester resin; and the thermoplastic resin comprises polyethylene, polypropylene, nylon, polyester, and ABS resin. The invention also provides a preparation method of the stratified electromagnetic shielding material; the stratified electromagnetic shielding material is reasonable in structure, and excellent in electromagnetic shielding performance.
Description
Technical field
The present invention relates to carbon nanotubes net resin base stratiform electromagnetic shielding material and preparation method thereof.
Background technology
Electromagnetic shielding is the requisite measure of many occasions, and existing electromagnetic shielding material performance haves much room for improvement.
Summary of the invention
The object of the present invention is to provide a kind of carbon nanotubes net resin base stratiform electromagnetic shielding material and preparation method thereof, this stratiform electromagnetic shielding material is rational in infrastructure, and capability of electromagnetic shielding is superior.
For achieving the above object, the invention provides a kind of carbon nanotubes net resin base stratiform electromagnetic shielding material, comprise at least one deck conductive layer, described conductive layer is the carbon nano-tube network be made up of carbon nanotube;
Described conductive layer both side surface is respectively equipped with adhesive layer;
Described adhesive layer is using the resin containing magnetic ferrite particle as binding agent;
Described resin comprises thermosetting resin, thermoplastic resin;
Described thermosetting resin comprises epoxy resin, resol, unsaturated polyester resin;
Described thermoplastic resin comprises polyethylene, polypropylene, nylon, polyester, ABS resin.
Preferably, described ferrite is one or more in Z 250 and manganese thereof, zinc doping system.
Preferably, the weight percent content of described carbon nanotube in stratiform electromagnetic shielding material is 10% ~ 60%.
Preferably, the weight percent content of described magnetic ferrite particle in adhesive layer is less than 40%.
Preferably, comprise plurality of conductive layers, adjacent conductive layer is connected by adhesive layer.
Preferably, described carbon nano-tube network by single wall or multi-walled carbon nano-tubes after grinding in a solvent after dispersion, shaping by filtering membrane suction filtration, removing solvent seasoning.
The present invention also provides the preparation method of above-mentioned stratiform electromagnetic shielding material, comprises the steps:
With single wall or multi-walled carbon nano-tubes after grinding in a solvent after dispersion, shaping by filtering membrane suction filtration, removing solvent seasoning, obtained carbon nano-tube network;
When adopting thermosetting resin to be binding agent, by magnetic ferrite mix particles in simple thermosetting resin, by the simple thermosetting resin dipping carbon nano-tube network, the then curing molding that mix, obtain sandwich structure;
When adopting thermoplastic resin to be binding agent, lay carbon nano-tube network on one deck thermoplastic resin film, then lay contains thermoplastic resin powder or the thermoplastic resin film of magnetic ferrite particle thereon, carries out hot-forming.
Advantage of the present invention and beneficial effect are: provide a kind of carbon nanotubes net resin base stratiform electromagnetic shielding material and preparation method thereof, this stratiform electromagnetic shielding material is rational in infrastructure, and capability of electromagnetic shielding is superior.
By the electromagnet shield effect regulating the thickness of the carbon nano-tube network of preparation, resin layer thickness, ferrite contamination to regulate stratiform electromagnetic shielding material, in addition, the stratiform electromagnetic shielding material superposition number of plies can also be regulated and controled and design gradient-structure and prepare the electromagnetic shielding material meeting different requirements.
Accompanying drawing explanation
Fig. 1 is the diagrammatic cross-section of carbon nanotubes net resin base stratiform electromagnetic shielding material (single-layered carbon nanotube pipe network).
Fig. 2 is the scanning electron microscope (SEM) photograph of carbon nano-tube network (Buckie paper);
Fig. 3 is the scanning electron microscope (SEM) photograph of carbon nanotubes net resin base stratiform electromagnetic shielding material section;
Fig. 4 is the partial enlarged drawing of carbon nanotube mesh portions.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
The specific embodiment of the invention is as follows:
1, the preparation of carbon nano-tube network (Buckie paper):
Can use single wall or multi-walled carbon nano-tubes, the diameter of the present embodiment single wall used or multi-walled carbon nano-tubes is 8 ~ 15nm, mean diameter 10nm, and length 1 ~ 100 μm, mean length is about 10 μm.First carbon nanotube is carried out appropriate mechanical mill, then in the ethanol containing certain tensio-active agent, ultrasonic disperse is carried out, solution after dispersion carries out vacuum filtration under filter membrane, solution is in filter membrane surface film forming, subsequently carbon nanotube paper is separated with filter membrane, wash dispersion agent with water, dry at 60 DEG C, baking oven, namely obtain carbon nanotube Buckie paper.Carbon nanotube consumption can be adjusted flexibly as required, thus prepare the carbon nanotube Buckie paper that thickness is 0.02mm to 1mm.
Scanning electron microscope (SEM) photograph as shown in Figure 2 for gained carbon nano-tube network (Buckie paper).
2, the preparation of carbon nanotubes net resin base stratiform electromagnetic shielding material:
For epoxy resin: will mix (ratio of mixture 10: 1) with solidifying agent (as diethylenetriamine) doped with ferritic epoxy resin (as E44), add Z 250 particle, ultrasonic disperse after stirring, about 10 minutes, removing bubble, the appropriate epoxy resin of even casting in mould, carbon nanometer paper is laid on resin, evenly to cast again above one deck epoxy resin, so repeat superimposed multilayer carbon nanometer paper, in baking oven, at 50 DEG C and 100 DEG C, solidify 1h respectively respectively.
The scanning electron microscope (SEM) photograph of gained carbon nanotubes net resin base stratiform electromagnetic shielding material section as shown in Figure 3.The partial enlarged drawing of its carbon nanotube mesh portions as shown in Figure 4.
Thermoplas tic resin composite, for composite polyethylene material, by the banburying 10 minutes at 160 DEG C of Z 250 particle and polyvinyl resin, 180 DEG C press down in flakes, by resin sheet and carbon nanotube Buckie paper interlayer superimposed, hot-forming at 180 DEG C.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. carbon nanotubes net resin base stratiform electromagnetic shielding material, is characterized in that, comprises at least one deck conductive layer, and described conductive layer is the carbon nano-tube network be made up of carbon nanotube;
Described conductive layer both side surface is respectively equipped with adhesive layer;
Described adhesive layer is using the resin containing magnetic ferrite particle as binding agent;
Described resin comprises thermosetting resin, thermoplastic resin;
Described thermosetting resin comprises epoxy resin, resol, unsaturated polyester resin;
Described thermoplastic resin comprises polyethylene, polypropylene, nylon, polyester, ABS resin.
2. carbon nanotubes net resin base stratiform electromagnetic shielding material according to claim 1, is characterized in that, described ferrite is one or more in Z 250 and manganese thereof, zinc doping system.
3. carbon nanotubes net resin base stratiform electromagnetic shielding material according to claim 1, it is characterized in that, the weight percent content of described carbon nanotube in stratiform electromagnetic shielding material is 10% ~ 60%.
4. carbon nanotubes net resin base stratiform electromagnetic shielding material according to claim 1, it is characterized in that, the weight percent content of described magnetic ferrite particle in adhesive layer is less than 40%.
5. carbon nanotubes net resin base stratiform electromagnetic shielding material according to claim 1, it is characterized in that, comprise plurality of conductive layers, adjacent conductive layer is connected by adhesive layer.
6. carbon nanotubes net resin base stratiform electromagnetic shielding material according to claim 1, it is characterized in that, described carbon nano-tube network by single wall or multi-walled carbon nano-tubes after grinding in a solvent after dispersion, shaping by filtering membrane suction filtration, removing solvent seasoning.
7. the preparation method of stratiform electromagnetic shielding material according to any one of claim 1 to 6, comprises the steps:
With single wall or multi-walled carbon nano-tubes after grinding in a solvent after dispersion, shaping by filtering membrane suction filtration, removing solvent seasoning, obtained carbon nano-tube network;
When adopting thermosetting resin to be binding agent, by magnetic ferrite mix particles in simple thermosetting resin, by the simple thermosetting resin dipping carbon nano-tube network, the then curing molding that mix, obtain sandwich structure;
When adopting thermoplastic resin to be binding agent, lay carbon nano-tube network on one deck thermoplastic resin film, then lay contains thermoplastic resin powder or the thermoplastic resin film of magnetic ferrite particle thereon, carries out hot-forming.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510621819.4A CN105255383A (en) | 2015-09-25 | 2015-09-25 | Stratified electromagnetic shielding material containing carbon nanotube network resin base, and preparation method thereof |
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| CN201510621819.4A CN105255383A (en) | 2015-09-25 | 2015-09-25 | Stratified electromagnetic shielding material containing carbon nanotube network resin base, and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793985A (en) * | 2014-10-07 | 2017-05-31 | 滑动环及设备制造有限公司 | The rotary conveyor of the shielding device constituted with the SMC and/or BMC by filling |
| CN107627678A (en) * | 2017-09-07 | 2018-01-26 | 大连理工大学 | Electromagnetic shielding material of the low reflection of high-selenium corn and preparation method thereof |
| CN108424609A (en) * | 2018-04-01 | 2018-08-21 | 宁波依诺汽车电子有限公司 | A kind of automobile electronics electromagnetic shielding material |
| CN108535508A (en) * | 2018-04-01 | 2018-09-14 | 宁波依诺汽车电子有限公司 | A kind of Full-shielding automobile wheel speed sensor |
| CN108535506A (en) * | 2018-04-01 | 2018-09-14 | 宁波依诺汽车电子有限公司 | A kind of shielding construction of the magnetoelectric wheel speed sensor of car |
| CN108749194A (en) * | 2018-08-30 | 2018-11-06 | 天津工业大学 | A kind of electromagnetic shielding sandwich laminated film and preparation method thereof |
| CN109348698A (en) * | 2018-12-12 | 2019-02-15 | 横店集团东磁股份有限公司 | A kind of ferrite-carbon nano tube composite wave-absorbing material and preparation method thereof |
| CN109651641A (en) * | 2019-01-03 | 2019-04-19 | 莫爱军 | A kind of preparation method of multi-layer nano electromagnetic shielding composite material |
| CN111040428A (en) * | 2019-12-27 | 2020-04-21 | 佛山科学技术学院 | Electromagnetic shielding high-thermal-conductivity nylon composite material and preparation method thereof |
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| CN1324904A (en) * | 2000-05-19 | 2001-12-05 | 弗朗茨·科珀 | Isolator or filler having electromagnetic shielding characteristic for producing electronic device |
| CN101163390A (en) * | 2007-11-29 | 2008-04-16 | 中国航空工业第一集团公司北京航空材料研究院 | Method of producing carbon nano-tube nonwoven cloth electromagnetic shielding composite material |
| CN203238207U (en) * | 2012-12-31 | 2013-10-16 | 东莞市美厚塑磁有限公司 | Ultrathin electromagnetic shielding magnetic film |
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| CN1324904A (en) * | 2000-05-19 | 2001-12-05 | 弗朗茨·科珀 | Isolator or filler having electromagnetic shielding characteristic for producing electronic device |
| CN101163390A (en) * | 2007-11-29 | 2008-04-16 | 中国航空工业第一集团公司北京航空材料研究院 | Method of producing carbon nano-tube nonwoven cloth electromagnetic shielding composite material |
| CN203238207U (en) * | 2012-12-31 | 2013-10-16 | 东莞市美厚塑磁有限公司 | Ultrathin electromagnetic shielding magnetic film |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793985A (en) * | 2014-10-07 | 2017-05-31 | 滑动环及设备制造有限公司 | The rotary conveyor of the shielding device constituted with the SMC and/or BMC by filling |
| CN106793985B (en) * | 2014-10-07 | 2020-11-10 | 史莱福灵有限公司 | Rotary conveyor with shielding device made of filled SMC and/or BMC material |
| CN107627678A (en) * | 2017-09-07 | 2018-01-26 | 大连理工大学 | Electromagnetic shielding material of the low reflection of high-selenium corn and preparation method thereof |
| CN107627678B (en) * | 2017-09-07 | 2019-05-14 | 大连理工大学 | The electromagnetic shielding material and preparation method thereof of the low reflection of high-selenium corn |
| CN108424609A (en) * | 2018-04-01 | 2018-08-21 | 宁波依诺汽车电子有限公司 | A kind of automobile electronics electromagnetic shielding material |
| CN108535508A (en) * | 2018-04-01 | 2018-09-14 | 宁波依诺汽车电子有限公司 | A kind of Full-shielding automobile wheel speed sensor |
| CN108535506A (en) * | 2018-04-01 | 2018-09-14 | 宁波依诺汽车电子有限公司 | A kind of shielding construction of the magnetoelectric wheel speed sensor of car |
| CN108749194A (en) * | 2018-08-30 | 2018-11-06 | 天津工业大学 | A kind of electromagnetic shielding sandwich laminated film and preparation method thereof |
| CN109348698A (en) * | 2018-12-12 | 2019-02-15 | 横店集团东磁股份有限公司 | A kind of ferrite-carbon nano tube composite wave-absorbing material and preparation method thereof |
| CN109651641A (en) * | 2019-01-03 | 2019-04-19 | 莫爱军 | A kind of preparation method of multi-layer nano electromagnetic shielding composite material |
| CN109651641B (en) * | 2019-01-03 | 2021-10-08 | 孙斌 | Preparation method of multilayer nano electromagnetic shielding composite film |
| CN111040428A (en) * | 2019-12-27 | 2020-04-21 | 佛山科学技术学院 | Electromagnetic shielding high-thermal-conductivity nylon composite material and preparation method thereof |
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Application publication date: 20160120 |