CN106696404A - FeNi absorbing material of improved substrate - Google Patents
FeNi absorbing material of improved substrate Download PDFInfo
- Publication number
- CN106696404A CN106696404A CN201610989414.0A CN201610989414A CN106696404A CN 106696404 A CN106696404 A CN 106696404A CN 201610989414 A CN201610989414 A CN 201610989414A CN 106696404 A CN106696404 A CN 106696404A
- Authority
- CN
- China
- Prior art keywords
- feni
- layer
- absorbing material
- neoprene
- absorbing
- 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.)
- Pending
Links
Classifications
-
- 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
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/02—Layered products comprising a layer of natural or synthetic rubber with fibres or particles being present as additives in the 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
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber 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
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
-
- 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
The invention discloses a FeNi absorbing material. The FeNi absorbing material of improved substrate is composed of a resistance match layer, a dissipation layer and a reflecting layer from top to bottom, the resistance match layer is formed by dispersing 2-8 wt% FexNi1-x powder into polypyrrole, the dissipation layer is formed by dispersing hydroxy iron powder into neoprene, the reflecting layer is formed by dispersing graphite into neoprene, and x is 0.2 or 0.5. According to the FeNi absorbing material of the improved substrate, specific components are chosen from FeNi alloy powder, and an unexpected technical effect is generated.
Description
Technical field
The present invention relates to new material technology field, more particularly to a kind of FeNi absorbing materials for improving substrate.
Background technology
With the development of modern science and technology, influence of the electromagenetic wave radiation to environment increasingly increases.Airport, machine flight because
Electromagnetic Interference cannot take off and overdue；The normal work of various electronic instrument for diagnosing and curing diseases devices can be often disturbed in hospital, mobile phone.Cause
This, administers electromagnetic pollution, finds a kind of material that can be kept out and weaken electromagenetic wave radiation --- absorbing material, it has also become material supply section
The big problem learned.
Absorbing material refers to can be absorbed, decaying projects the electromagnetic wave energy of material surface, and by electromagnetic energy by material
The class functional material that the energy dissipation that the dielectric loss in portion is converted into 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, absorptivity is high, matching thickness is thin
The features such as.This materials application is can absorb the electromagnetic radiation of leakage in electronic equipment, the mesh for eliminating electromagnetic interference can be reached
's.According to the rule that electromagnetic wave is propagated from low magnetic steering magnetic conductance direction high in media as well, electricity is guided using high magnetic conductivity ferrite
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 properties, 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 FeNi absorbing materials for improving substrate, the absorbing property of material is enabled to
It is substantially improved.
In first invention " a kind of FeNi absorbing materials " of the invention, it is found that FeNi has collaboration under specific ratio and closes
System, based on this discovery, the present invention is optimized to the absorbing material, to form conspiracy relation in FeNi alloy powders
On the basis of, the suction ripple energy-absorbing of absorbing material is further lifted.
It is that, up to this purpose, the present invention uses following technical scheme：
A kind of FeNi absorbing materials for improving substrate, it is made up of impedance matching layer, depletion layer and reflecting layer from top to bottom,
Impedance matching layer by 2-8wt% FexNi1-xPowder is formed in being distributed to polypyrrole, and depletion layer is distributed to neoprene for hydroxy iron powder
Formed in rubber, by being formed in graphite dispersion to neoprene, the x is 0.2 or 0.5 in reflecting layer.
The present invention is combined by specific recipe ingredient, devise impedance matching layer/depletion layer/reflecting layer composition three layers
Film, its positive wave-absorbing effect is 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 -23.6dB, excellent performance for it.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Embodiment 1
A kind of FeNi absorbing materials, it is made up of impedance matching layer, depletion layer and reflecting layer from top to bottom, impedance matching layer
By the Fe of 2wt%xNi1-xPowder is formed in being distributed to polypyrrole, and depletion layer is formed for hydroxy iron powder is distributed in neoprene,
By being formed in graphite dispersion to neoprene, the x is 0.2 in reflecting layer.
Embodiment 2
A kind of FeNi absorbing materials, it is made up of impedance matching layer, depletion layer and reflecting layer from top to bottom, impedance matching layer
By the Fe of 8wt%xNi1-xPowder is formed in being distributed to polypyrrole, and depletion layer is formed for hydroxy iron powder is distributed in neoprene,
By being formed in graphite dispersion to neoprene, the x is 0.5 in reflecting layer.
Comparative example 1
X is 0.3, and remaining is same as Example 1.
Comparative example 2
X is 0.6, and remaining is same as Example 2.
Comparative example 3
The base material of impedance matching layer is neoprene, and remaining is same as Example 1.
Absorbing material described in embodiment 1 and 2, absorption maximum is more than -23.6, and the absorption maximum of comparative example 1-3,
Below -20dB.The comparative illustration of embodiment 1-2 and comparative example 1-3, the present invention is from FeNi alloy powders, and selection is specific
Composition and specific base material, generate unexpected technique effect.
Claims (1)
1. a kind of FeNi absorbing materials, it is made up of impedance matching layer, depletion layer and reflecting layer from top to bottom, impedance matching layer by
The Fe of 2-8wt%xNi1-xPowder is formed in being distributed to polypyrrole, and depletion layer is formed for hydroxy iron powder is distributed in neoprene,
By being formed in graphite dispersion to neoprene, the x is 0.2 or 0.5 in reflecting layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989414.0A CN106696404A (en) | 2016-11-10 | 2016-11-10 | FeNi absorbing material of improved substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989414.0A CN106696404A (en) | 2016-11-10 | 2016-11-10 | FeNi absorbing material of improved substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106696404A true CN106696404A (en) | 2017-05-24 |
Family
ID=58940895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610989414.0A Pending CN106696404A (en) | 2016-11-10 | 2016-11-10 | FeNi absorbing material of improved substrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106696404A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299914A (en) * | 2008-06-20 | 2008-11-05 | 广东工业大学 | Nanocrystalline ultra-fine alloy powder electromagnetic wave absorbent and preparation method thereof |
| US20090314539A1 (en) * | 2003-03-25 | 2009-12-24 | Shin-Etsu Polymer Co., Ltd. | Electromagnetic noise suppressor, article with electromagnetic noise suppressing function and their manufacturing methods |
| 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 |
-
2016
- 2016-11-10 CN CN201610989414.0A patent/CN106696404A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090314539A1 (en) * | 2003-03-25 | 2009-12-24 | Shin-Etsu Polymer Co., Ltd. | Electromagnetic noise suppressor, article with electromagnetic noise suppressing function and their manufacturing methods |
| CN101299914A (en) * | 2008-06-20 | 2008-11-05 | 广东工业大学 | Nanocrystalline ultra-fine alloy powder electromagnetic wave absorbent 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |
|
| WD01 | Invention patent application deemed withdrawn after publication |