CN106515160A - Polypyrrole-based wave absorbing material - Google Patents
Polypyrrole-based wave absorbing material Download PDFInfo
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- CN106515160A CN106515160A CN201610989166.XA CN201610989166A CN106515160A CN 106515160 A CN106515160 A CN 106515160A CN 201610989166 A CN201610989166 A CN 201610989166A CN 106515160 A CN106515160 A CN 106515160A
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- absorbing material
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- impedance matching
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- 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
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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- 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
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- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/18—Layered products comprising a layer of natural or synthetic rubber comprising butyl or halobutyl rubber
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- 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
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- 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
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance 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
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- 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
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/048—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of particles
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- 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
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/025—Particulate layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
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- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/048—Natural or synthetic rubber
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- 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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/102—Oxide or hydroxide
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- 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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/107—Ceramic
- B32B2264/108—Carbon, e.g. graphite particles
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- 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
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- 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/56—Damping, energy absorption
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The invention discloses a polypyrrole-based wave absorbing material. The wave absorbing material comprises an impedance matching layer, a loss layer and a reflective layer from top to bottom. The impedance matching layer is prepared through dispersing 3-12% of MnO2/NiCuZn ferrite powder into polypyrrole. The loss layer is prepared through dispersing hydroxy iron powder into chloroprene rubber. The reflective layer is prepared through dispersing graphite into chloroprene rubber. A MnO2-NiCuZn mass ratio of the MnO2/NiCuZn ferrite powder is (6-18): 100. The wave absorbing material utilizes the impedance matching layer to replace polypyrrole, has thickness of 0.2mm, has the maximum absorption of more than -23.5dB and has the performances much better than those of the existing wave absorbing material with chloroprene rubber and polyaniline.
Description
Technical field
A kind of the present invention relates to new material technology field, more particularly to the absorbing material that polypyrrole is substrate.
The present invention is earlier application " a kind of modified ferroferric oxide wave absorbing material of Graphene ", " a kind of Graphene is modified
Barium metatitanate. absorbing material " and the absorbing material of substrate " a kind of improve " improvement invention.
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 the absorbing material that a kind of polypyrrole is substrate, enable to absorbing material performance and dash forward
Go out.
A kind of earlier application " Graphene modified Barium metatitanate. absorbing material " of inventor and " a kind of Graphene be modified four
The impedance matching layer substrate difference neoprene and polyphenyl of Fe 3 O absorbing material " and " a kind of absorbing material for improving substrate "
Amine.Inventor is optimized to the absorbing material, and substrate is optimized, and seeks the absorbing material of higher performance, to
Improve absorbing property.
It is that, up to this purpose, the present invention is employed the following technical solutions：
A kind of absorbing material of polypyrrole for substrate, which is made up of impedance matching layer, depletion layer and reflecting layer from top to bottom,
Impedance matching layer is by 3-12%MnO2/ NiCuZn ferrite powders are formed in being distributed to polypyrrole, and depletion layer is hydroxy iron powder point
Formed in being scattered to neoprene, reflecting layer is formed in neoprene by graphite dispersion, the MnO2/ NiCuZn ferrite powders
In, MnO2:NiCuZn mass ratioes are (6-18):100.
Manganese dioxide is a kind of distorted octahedron structure centered on manganese atom, and octahedral summit is accounted for by oxygen atom
Octahedral structure is formed according to, each manganese atom by six oxygen atoms are surrounded.In pyrolusite and the crystal of amorphous manganese dioxide
Contain larger tunnel and hole in structure.On the one hand this tunnel and void structure can receive other lewis' acids to enter
Enter the structure, on the other hand positive and negative charge is easily moved to the two poles of the earth under electromagnetic field effect, be finally collected at interface and produce boundary
Surface polarization and sky ask charge polarization, and this polarization is to cause MnO2One of major reason of dielectric material loss.
At present to MnO2The research of the electromagnetic performance of ferrite doped calcium or other oxides has absolutely proved this point.
Present invention demonstrates that, due to the interfacial polarization phenomenon of manganese dioxide, MnO is added in NiCuZn ferrites2Ferrum can be reduced
The magnetostriction constant of ferrite, so that significantly improve the dielectric constant and pcrmeability of material.
Under electromagnetic field effect, the carrier in manganese dioxide structure causes localization to pile up, so as to cause space charge
Polarization, as the accumulation of space charge carrier needs the regular hour, so that the axial direction of carrier and additional electromagnetic field
Direction is identical, so having different polarization intensities at different frequencies, thereby results in the Dispersion of manganese dioxide particle.
Absorbing material of the present invention, after impedance matching layer is replaced with polypyrrole, its thickness be 0.2mm when,
Its absorption maximum exceedes -23.5dB, and performance is far superior to using neoprene and polyaniline.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Embodiment 1
A kind of absorbing material of polypyrrole for substrate, which is made up of impedance matching layer, depletion layer and reflecting layer from top to bottom,
Impedance matching layer 8%MnO2/ NiCuZn ferrite powders are formed in being distributed to polypyrrole, and depletion layer is distributed to chlorine for hydroxy iron powder
Formed in buna, reflecting layer is formed in neoprene by graphite dispersion, the MnO2In/NiCuZn ferrite powders,
MnO2:NiCuZn mass ratioes are 10:100.
Comparative example 1
Impedance matching layer substrate described in embodiment 1 is replaced with into neoprene, remaining is same as Example 1.
Comparative example 2
Impedance matching layer substrate described in embodiment 1 is replaced with into polyaniline, remaining is same as Example 1.
Comparative example 3
By the MnO in embodiment 12/ NiCuZn ferrite powders replace with Graphene/barium carbonate powder, remaining and enforcement
Example 1 is identical.
Absorbing material described in embodiment 1, is contrasted with the absorbing material of comparative example 2, when which is 0.2mm in thickness,
Its absorption maximum of the invention exceedes -23.5dB, and-the 9.46dB considerably beyond embodiment 1-3, -13.6dB prove to adopt polypyrrole
After matrix, relative to neoprene and polyaniline bottom, performance is substantially improved.
, compared with comparative example 3, the sound-absorbing material which adulterates in being different only in that substrate is different for embodiment 1, and comparative example 3
Absorption maximum is only -8.79dB, is thus proved, the polypyrrole matrix and MnO of the present invention2/ NiCuZn ferrite powders are combined to be made
With can just play the lifting of performance, possess therebetween specific matching relationship, with synergism.
Claims (1)
1. a kind of polypyrrole is the absorbing material of substrate, and which is made up of impedance matching layer, depletion layer and reflecting layer from top to bottom, resistance
Anti- matching layer is by 3-12%MnO2/ NiCuZn ferrite powders are formed in being distributed to polypyrrole, and depletion layer disperses for hydroxy iron powder
Formed in neoprene, reflecting layer is formed in neoprene by graphite dispersion, the MnO2/ NiCuZn ferrite powders
In, MnO2:NiCuZn mass ratioes are (6-18):100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989166.XA CN106515160A (en) | 2016-11-10 | 2016-11-10 | Polypyrrole-based wave absorbing material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989166.XA CN106515160A (en) | 2016-11-10 | 2016-11-10 | Polypyrrole-based wave absorbing material |
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| CN106515160A true CN106515160A (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610989166.XA Pending CN106515160A (en) | 2016-11-10 | 2016-11-10 | Polypyrrole-based wave absorbing material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499024A (en) * | 2019-08-31 | 2019-11-26 | 厦门珉瑶贸易有限公司 | A kind of modified poly- carboxy pyrrole absorbing material of ferrite-graphene and its preparation method |
Citations (3)
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|---|---|---|---|---|
| CN1646000A (en) * | 2004-11-30 | 2005-07-27 | 横店集团东磁有限公司 | Electromagnetic wave interference preventive material and production thereof |
| CN102154832A (en) * | 2010-12-31 | 2011-08-17 | 泉州红瑞兴纺织有限公司 | Fabric coating finishing agent with electromagnetic shielding function 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 |
-
2016
- 2016-11-10 CN CN201610989166.XA patent/CN106515160A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1646000A (en) * | 2004-11-30 | 2005-07-27 | 横店集团东磁有限公司 | Electromagnetic wave interference preventive material and production 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 |
| CN102154832A (en) * | 2010-12-31 | 2011-08-17 | 泉州红瑞兴纺织有限公司 | Fabric coating finishing agent with electromagnetic shielding function and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 冯彬: "层板结构吸波复合材料吸波性能研究", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
| 童忠良: "《新型功能复合材料制备新技术》", 31 October 2010, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499024A (en) * | 2019-08-31 | 2019-11-26 | 厦门珉瑶贸易有限公司 | A kind of modified poly- carboxy pyrrole absorbing material of ferrite-graphene and its preparation method |
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