CN106535597A - NiCo polyaniline absorbing material - Google Patents
NiCo polyaniline absorbing material Download PDFInfo
- Publication number
- CN106535597A CN106535597A CN201610989423.XA CN201610989423A CN106535597A CN 106535597 A CN106535597 A CN 106535597A CN 201610989423 A CN201610989423 A CN 201610989423A CN 106535597 A CN106535597 A CN 106535597A
- Authority
- CN
- China
- Prior art keywords
- polyaniline
- layer
- nico
- impedance matching
- absorbing material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- H05K9/0088—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a plurality of shielding layers; combining different shielding material structure
Abstract
A NiCo polyaniline absorbing material disclosed by the present invention is composed of an impedance matching layer, a depletion layer and a reflection layer from top to bottom, the impedance matching layer is formed by dispersing 2-8 wt% of Ni0.8Co0.2 powder in the polyaniline, the depletion layer is formed by dispersing the hydroxy iron powder in the chloroprene rubber, and the reflection layer is formed by dispersing the graphite in the chloroprene rubber. According to the present invention, by selecting the specific composition from the NiCo alloy powder to match the polyaniline, an unexpected technical effect is generated.
Description
Technical field
A kind of the present invention relates to new material technology field, more particularly to NiCo polyaniline wave absorbing materials.
Background technology
With the development of modern science and technology, impact of the electromagenetic wave radiation to environment increasingly increases.Airport, machine flight because
Electromagnetic Interference cannot be taken off and overdue；The normal work of various electronic instrument for diagnosing and curing diseases devices can often be disturbed in hospital, mobile phone.Cause
This, administers electromagnetic pollution, finds a kind of material absorbing material that can be kept out and weaken electromagenetic wave radiation, it has also become material supply section
The big problem learned.
Absorbing material refer to can absorb, decaying projects the electromagnetic wave energy of material surface, and by electromagnetic energy by material
The dielectric loss in portion is converted into into the class functional material that the energy dissipation of the other forms such as heat energy is fallen.Absorbing material is by absorbing
Agent, adhesive and various auxiliary agents composition, the electromagnetic performance of wherein absorbent determines the quality of microwave absorbing coating performance, in cell material
Misusing for key is played in material.
Research confirms that ferrite wave-absorbing material performance is optimal, and it has, and absorption frequency range is high, absorbance is high, matching thickness is thin
The features such as.This materials application is can absorb in electronic equipment the electromagnetic radiation of leakage, the mesh for eliminating electromagnetic interference can be reached
's.According to the rule that electromagnetic wave is propagated from the high magnetic conductance direction of low magnetic steering in media as well, using high magnetic conductivity ferrite guiding electricity
Magnetic wave, by resonance, the emittance of a large amount of electromagnetic wave absorptions, then by coupling the energy conversion of electromagnetic wave into heat energy.
With the development of modern crafts, the requirement more and more higher to absorbing material, it is desirable to while wave-absorbing effect is preferable,
Possess preferable physical and mechanical propertiess, preferable heat-resisting quantity and working service simple etc..
The content of the invention
It is an object of the invention to propose a kind of NiCo polyaniline wave absorbing materials, the absorbing property of material is enabled to significantly
Lifted.
It is that, up to this purpose, the present invention is employed the following technical solutions：
A kind of NiCo polyaniline wave absorbing materials, which is made up of impedance matching layer, depletion layer and reflecting layer from top to bottom, impedance
Ni of the matching layer by 2-8wt%0.8Co0.2Powder body is formed in being distributed to polyaniline, and depletion layer is distributed to neoprene rubber for hydroxy iron powder
Formed in glue, reflecting layer is formed in neoprene by graphite dispersion.
The present invention is combined by specific recipe ingredient, devise impedance matching layer/depletion layer/reflecting layer composition three layers
Thin film, its positive wave-absorbing effect are significantly better than reverse side, the front membrane structure design it is correct.Suction of the present invention
Wave material,, when thickness is 0.2mm, its absorption maximum exceedes -18.9dB, excellent performance for which.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Embodiment 1
A kind of NiCo absorbing materials, which is made up of impedance matching layer, depletion layer and reflecting layer from top to bottom, impedance matching layer
By the Ni of 2wt%0.8Co0.2Powder body is formed in being distributed to polyaniline, and depletion layer is distributed in neoprene for hydroxy iron powder and is formed,
Reflecting layer is formed in neoprene by graphite dispersion.
Embodiment 2
A kind of NiCo absorbing materials, which is made up of impedance matching layer, depletion layer and reflecting layer from top to bottom, impedance matching layer
By the Ni of 8wt%0.8Co0.2Powder body is formed in being distributed to polyaniline, and depletion layer is distributed in neoprene for hydroxy iron powder and is formed,
Reflecting layer is formed in neoprene by graphite dispersion.
Comparative example 1
NiCo alloy powders are Ni0.6Co0.4, remaining is same as Example 1.
Comparative example 2
NiCo alloy powders are Ni0.9Co0.1, remaining is same as Example 2.
Embodiment 3
The base material of impedance matching layer is butadiene rubber, and remaining is same as Example 1.
Absorbing material described in embodiment 1 and 2, absorption maximum exceed -18.9dB, and the absorption maximum of comparative example 1-3,
Below below -10dB and -17dB.The comparative illustration of embodiment 1-2 and comparative example 1-3, it is of the invention from CoNi alloy powders,
Specific composition, the cooperation with polyaniline is selected to generate unforeseeable technique effect.
Claims (1)
1. a kind of NiCo polyaniline wave absorbing materials, which is made up of impedance matching layer, depletion layer and reflecting layer from top to bottom, impedance
With layer by 2-8wt% Ni0.8Co0.2Powder body is formed in being distributed to polyaniline, and depletion layer is distributed to neoprene for hydroxy iron powder
Middle formation, reflecting layer is formed in neoprene by graphite dispersion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989423.XA CN106535597A (en) | 2016-11-10 | 2016-11-10 | NiCo polyaniline absorbing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989423.XA CN106535597A (en) | 2016-11-10 | 2016-11-10 | NiCo polyaniline absorbing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106535597A true CN106535597A (en) | 2017-03-22 |
Family
ID=58350699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610989423.XA Pending CN106535597A (en) | 2016-11-10 | 2016-11-10 | NiCo polyaniline absorbing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106535597A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003289196A (en) * | 2002-03-28 | 2003-10-10 | Komatsu Seiren Co Ltd | Resistive film for radio wave absorbent and its manufacturing method |
| CN102044319A (en) * | 2009-10-23 | 2011-05-04 | 中国科学院物理研究所 | Composite wave absorbing material and preparation method thereof |
| CN102179965A (en) * | 2010-12-28 | 2011-09-14 | 中国航空工业集团公司北京航空材料研究院 | Three-layer composite wave-absorbing film and preparation method thereof |
| CN102917577A (en) * | 2012-10-16 | 2013-02-06 | 西南科技大学 | Composite electromagnetic shielding material and method for manufacturing same |
-
2016
- 2016-11-10 CN CN201610989423.XA patent/CN106535597A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003289196A (en) * | 2002-03-28 | 2003-10-10 | Komatsu Seiren Co Ltd | Resistive film for radio wave absorbent and its manufacturing method |
| CN102044319A (en) * | 2009-10-23 | 2011-05-04 | 中国科学院物理研究所 | Composite wave absorbing material and preparation method thereof |
| CN102179965A (en) * | 2010-12-28 | 2011-09-14 | 中国航空工业集团公司北京航空材料研究院 | Three-layer composite wave-absorbing film and preparation method thereof |
| CN102917577A (en) * | 2012-10-16 | 2013-02-06 | 西南科技大学 | Composite electromagnetic shielding material and method for manufacturing same |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170322 |