CN108285604A - A kind of composite material for shielding electromagnetic radiation - Google Patents
A kind of composite material for shielding electromagnetic radiation Download PDFInfo
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- CN108285604A CN108285604A CN201810188284.XA CN201810188284A CN108285604A CN 108285604 A CN108285604 A CN 108285604A CN 201810188284 A CN201810188284 A CN 201810188284A CN 108285604 A CN108285604 A CN 108285604A
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- composite material
- electromagnetic radiation
- shielding electromagnetic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
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- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/01—Magnetic additives
Abstract
The invention discloses a kind of composite material for shielding electromagnetic radiation, the raw material that the composite material is made is silicon carbide fibre, thermoplastic acrylic resin, ferrocene Organic Magnet, N phenyl β naphthylamines, zinc stearate, polyvinyl chloride, conductive filler, coupling agent, filler, stabilizer and other auxiliary agents；The advantages of present invention incorporates sandwich and Gradient Materials, have relative to the superior performance of both materials, due to the impedance mismatch between absorbing material layer and reflecting layer, incident electromagnetic wave will produce multipath reflection, the propagation path of electromagnetic wave in the material is increased, multipath reflection loss and the increase of absorption loss are so that the shield effectiveness of material becomes larger；It reduces reflecting layer and absorbs the resistance difference of interlayer so that electromagnetic wave will not be too fast because of reflection escapes from shielding material, can more enter next screen unit, further improve the shield effectiveness of material.Thus, the shielding material of the structure has preferable shielding properties.
Description
Technical field
The present invention relates to material engineering field more particularly to a kind of composite materials for shielding electromagnetic radiation.
Background technology
Electromagnetic radiation is the product of modern civilization, with the high speed development of wireless communication tool, radio and television services, office
The all-round popularization of computer automation, the rapid proliferation of household electrical appliance, although to people life bring great convenience with fast,
But also produce a kind of novel environmental pollution --- electromagnetic radiation.
In today of information age, electromagnetic radiation is ubiquitous in we live, in addition to TV, broadcast, radar detection
Outside, the fields such as aviation management, astronomical surveing, wireless remotecontrol and communication and household electrical appliances are not until nuclear energy, none is being radiated respectively
The electromagnetic radiation of kind energy.It is this do not see, can not touch, smell less than, make one imperceptible harm, giving human health band
Carry out serious influence, becomes the inducement of many diseases.
Harmful electromagnetic wave, the radio frequency electromagnetic being primarily referred to as in human habitat.Radio frequency electromagnetic
Including medium wave, shortwave, ultrashort wave, fundamental frequency is 10--40 megacycles, and harmonic frequency is tens to hundreds of megacycles, directionless
Property, can almost penetrate the overwhelming majority it is nonmetallic, it can not be limited in some space, be not easy to crowd shielding be isolated.
It is well known that being exposed to for a long time harmful under electromagnetic radiation, it can make cell membrane and vivo protein
It changes, destroys the biological structure and nervous system of human body, research report shows that prolonged electromagnetic radiation is to children, tire
The influence of youngster is maximum, and it is more than 2--3 times of arm's length standard that can lead to childhood cancer incidence, and fetal abortion and aberration rate increase together
When, mass data is shown, the amount of electromagnetic radiation of commercially available mobile phone is 20 times or more of defined standard, and long-time service will produce spirit
The adverse consequences such as disorder, amnesia, eyesight attenuating；Since the electromagnetic radiation that computer, TV generate can induce cancer, leukaemia
Deng in unconsciously cause people fatal position.High dose and long-time radiation effect be it will be apparent that however, relatively low-dose it is long when
Between radiation can lead to disease, even dead.
There is presently no the harm that a kind of effective methods avoid electromagnetic radiation.A kind of simpler method
It is to set up a shielded layer between people and radiation source to separate human body and radiation, one is set as lead target blocking X-ray, micro-wave oven
It is the same that copper mesh completely cuts off Microwave emission.Another technology is exactly that the Applied Physics principles of chemistry absorb, neutralize electromagnetic radiation.Electromagnetic radiation is made
For human body, it is to be carried out by positive ion beam, is neutralized, absorbs if before cation reaches human body, so that it may to keep away
Exempt from its negative effect.
Invention content
The present invention provides a kind of composite materials for shielding electromagnetic radiation；Present invention incorporates sandwich and
The advantages of Gradient Materials, have relative to the superior performance of both materials, due to absorbing material layer and reflecting layer it
Between impedance mismatch, incident electromagnetic wave will produce multipath reflection, increase the propagation path of electromagnetic wave in the material, multiple
The increase of reflection loss and absorption loss is so that the shield effectiveness of material becomes larger；It reduces reflecting layer and absorbs the impedance contrast of interlayer
It is different so that electromagnetic wave will not be too fast because of reflection escapes from shielding material, can more enter next screen unit, further
Improve the shield effectiveness of material.Thus, the shielding material of the structure has preferable shielding properties.
To achieve the above object, technical scheme of the present invention is implemented as follows：
A kind of composite material for shielding electromagnetic radiation, the raw material that the composite material is made are silicon carbide fibre, thermoplasticity
Acrylic resin, N- phenyl-β-naphthylamines, zinc stearate, polyvinyl chloride, conductive filler, coupling agent, is filled out ferrocene Organic Magnet
Fill agent, stabilizer and other auxiliary agents；
The preparation process that the composite material is made includes the following steps：
（1）Silicon carbide fibre, ferrocene Organic Magnet, N- phenyl-β-naphthylamines and zinc stearate are mixed, stirred with magnetic stirrer
It mixes 20-40 minutes；
（2）In step（1）Conductive filler and coupling agent is added in mixture, continues stirring 40-60 minutes；
（3）Thermoplastic acrylic resin and polyvinyl chloride are heated to 100-120 DEG C of softening fusion；
（4）By step（2）Mixture be added to step（3）Mixture in, and be added filler, stabilizer and other help
Agent stirs evenly, and continues heating 40-60 minutes；
（5）It will be by step（4）Mix products be put into baking oven and dried at 60-80 DEG C of temperature after, cooled down through note under room temperature
Molding machine injection molding is up to the composite material for shielding electromagnetic radiation.
It is 45-60 parts of silicon carbide fibre, thermoplastic acrylic tree that the raw material of the composite material and its mass fraction, which is made,
35-48 parts of fat, 28-45 parts of ferrocene Organic Magnet, 25-42 parts of N- phenyl-β-naphthylamines, 20-38 parts of zinc stearate, polyvinyl chloride
18-32 parts, 15-26 parts of conductive filler, 5-12 parts of coupling agent, 10-18 parts of filler, 8-16 parts of stabilizer and other auxiliary agents 5-15
Part.
It is 52 parts of silicon carbide fibre, thermoplastic acrylic resin 42 that the raw material of the composite material and its mass fraction, which is made,
Part, 36 parts of ferrocene Organic Magnet, 33 parts of N- phenyl-β-naphthylamines, 29 parts of zinc stearate, 26 parts of polyvinyl chloride, conductive filler 22
Part, 8 parts of coupling agent, 14 parts of filler, 12 parts of stabilizer and 10 parts of other auxiliary agents.
The coupling agent is methyl isopropyl Ketone and 3- thiocyanatopropyltriethoxysilanes.
The filler is nitrogen-contained rare earth magnetic powder.
The conductive filler is that acetylene carbon black, mica sheet, glass fibre and nanometer gadolinium sesquioxide, weight part ratio are
1:2:3:1。
Other described auxiliary agents include fire retardant, antioxidant, antistatic agent.
The fire retardant is the mixture of one or both of antimony oxide, magnesium hydroxide and aluminium hydroxide；It is described
Antioxidant is the mixture of one or both of antioxidant DNP, anti-oxidant DLTP and antioxidant TNP；The antistatic agent is
Nonionic resists quiet dose.
The dimethyl dimercapto 2-ethyl hexyl ethanoate tin that the stabilizer is.
Compared with prior art, the present invention having the advantages that：
The advantages of present invention incorporates sandwich and Gradient Materials has superior relative to both materials
Performance, due to the impedance mismatch between absorbing material layer and reflecting layer, incident electromagnetic wave will produce multipath reflection, increase
The propagation path of electromagnetic wave in the material, multipath reflection loss and the increase of absorption loss are so that the shield effectiveness of material becomes larger；
It reduces reflecting layer and absorbs the resistance difference of interlayer so that electromagnetic wave will not be too fast because of reflection escapes from shielding material, can
More to enter next screen unit, the shield effectiveness of material is further improved.Thus, the shielding material of the structure has
Preferable shielding properties.
Specific implementation mode
Present invention is further elaborated in following combination specific embodiment.
Embodiment 1
A kind of composite material for shielding electromagnetic radiation, the raw material that the composite material is made are：
Be made the composite material raw material and its mass fraction be 45 parts of silicon carbide fibre, 35 parts of thermoplastic acrylic resin,
28 parts of ferrocene Organic Magnet, 25 parts of N- phenyl-β-naphthylamines, 20 parts of zinc stearate, 18 parts of polyvinyl chloride, 15 parts of conductive filler,
5 parts of 5 parts of coupling agent, 10 parts of filler, 8 parts of stabilizer and other auxiliary agents.
The preparation process that the composite material is made includes the following steps：
（1）Silicon carbide fibre, ferrocene Organic Magnet, N- phenyl-β-naphthylamines and zinc stearate are mixed, stirred with magnetic stirrer
It mixes 20-40 minutes；
（2）In step（1）Conductive filler and coupling agent is added in mixture, continues stirring 40-60 minutes；
（3）Thermoplastic acrylic resin and polyvinyl chloride are heated to 100-120 DEG C of softening fusion；
（4）By step（2）Mixture be added to step（3）Mixture in, and be added filler, stabilizer and other help
Agent stirs evenly, and continues heating 40-60 minutes；
（5）It will be by step（4）Mix products be put into baking oven and dried at 60-80 DEG C of temperature after, cooled down through note under room temperature
Molding machine injection molding is up to the composite material for shielding electromagnetic radiation.
The coupling agent is methyl isopropyl Ketone and 3- thiocyanatopropyltriethoxysilanes.
The filler is nitrogen-contained rare earth magnetic powder.
The conductive filler is that acetylene carbon black, mica sheet, glass fibre and nanometer gadolinium sesquioxide, weight part ratio are
1:2:3:1。
Other described auxiliary agents include fire retardant, antioxidant, antistatic agent.
The fire retardant is the mixture of one or both of antimony oxide, magnesium hydroxide and aluminium hydroxide；It is described
Antioxidant is the mixture of one or both of antioxidant DNP, anti-oxidant DLTP and antioxidant TNP；The antistatic agent is
Nonionic resists quiet dose.
The dimethyl dimercapto 2-ethyl hexyl ethanoate tin that the stabilizer is.
Embodiment 2
Be made the composite material raw material and its mass fraction be 48 parts of silicon carbide fibre, 39 parts of thermoplastic acrylic resin,
32 parts of ferrocene Organic Magnet, 29 parts of N- phenyl-β-naphthylamines, 25 parts of zinc stearate, 22 parts of polyvinyl chloride, 19 parts of conductive filler,
7 parts of 6.5 parts of coupling agent, 12 parts of filler, 10 parts of stabilizer and other auxiliary agents.
The step of preparation process of the present embodiment such as embodiment 1.
Embodiment 3
Be made the composite material raw material and its mass fraction be 52 parts of silicon carbide fibre, 42 parts of thermoplastic acrylic resin,
36 parts of ferrocene Organic Magnet, 33 parts of N- phenyl-β-naphthylamines, 29 parts of zinc stearate, 26 parts of polyvinyl chloride, 22 parts of conductive filler,
10 parts of 8 parts of coupling agent, 14 parts of filler, 12 parts of stabilizer and other auxiliary agents.
The step of preparation process of the present embodiment such as embodiment 1.
Embodiment 4
Be made the composite material raw material and its mass fraction be 60 parts of silicon carbide fibre, 48 parts of thermoplastic acrylic resin,
45 parts of ferrocene Organic Magnet, 42 parts of N- phenyl-β-naphthylamines, 38 parts of zinc stearate, 32 parts of polyvinyl chloride, 26 parts of conductive filler,
15 parts of 12 parts of coupling agent, 18 parts of filler, 8-16 parts of stabilizer and other auxiliary agents.
The step of preparation process of the present embodiment such as embodiment 1.
The advantages of present invention incorporates sandwich and Gradient Materials has more excellent relative to both materials
Different performance：
Silicon carbide fibre：It is made with silicon B-carbide knot through spinning, carbonization or vapor deposition using organo-silicon compound as raw material
The inorfil of structure belongs to ceramic fibre class.Being divided to from form has two kinds of whisker and continuous fiber.Whisker is a kind of monocrystalline, carbonization
The diameter of whiskers of silicon is generally 0.1~2um, and length is 20~300um, and appearance is powdered.The highest of silicon carbide fibre uses
Temperature is up to 1200 DEG C, and heat resistance and oxidative resistance are superior to carbon fiber, and intensity uses temperature up to 1960~4410MPa, in highest
The lower strength retention of degree is 80% or more, and modulus is 176.4~294GPa, and chemical stability might as well.Silicon carbide fibre is mainly used
Make heat-resisting material and reinforcing material, heat-resisting material includes heatshield material, high temperature-resistance conveyor belt, filtering high temperature gas or molten
Melt the filter cloth etc. of metal.
Thermoplastic acrylic resin is by acrylic acid, methacrylic acid and its derivative（Such as esters, nitrile, amides）Polymerization
Manufactured one kind thermoplastic resin, can be repeatedly by thermal softening and cooled and solidified, and the principal advantages with acrylic coating are weather-proof
Property it is good, it is excellent to protect light, colour retention, water-fast, acidproof, alkaline-resisting good.
By changing carbon black content, the thickness of electromagnetic wave absorbing layer, the carbon fiber content in electromagnetic wave gradient reflecting layer, thickness
The superposition number of degree and screen unit can further adjust the shielding properties of shielding material, it is made to meet special frequency channel pair
The demand of shielding properties.Thus, which has good designability.
Due to the impedance mismatch between absorbing material layer and reflecting layer, incident electromagnetic wave will produce multipath reflection, increase
The propagation path of electromagnetic wave in the material, multipath reflection loss and the increase of absorption loss are added so that the shield effectiveness of material becomes
Greatly；It reduces reflecting layer and absorbs the resistance difference of interlayer so that electromagnetic wave will not be too fast because of reflection escapes from shielding material,
Next screen unit can more be entered, further improve the shield effectiveness of material.Thus, the shielding material tool of the structure
There is preferable shielding properties.
The measurement of surface resistivity：
Composite material made from embodiment 1, embodiment 2, embodiment 3 and embodiment 4 is conventionally processed into ruler respectively
Very little identical shielding net circle, 20 microns of thickness.
Using stick electrode, the end face of measuring electrode is 1cm × 1cm squares, measures end face and applies 2 kg/cms
Pressure, it is BY1943 digital multimeters that sample to be tested and electrode end surface, which keep cleaning, test equipment, and precision is not less than
0.001Ω。
Sheet resistance rate score is lower, and effectiveness is better.
Following table is that surface resistivity tests table
By above-mentioned data, can significantly it find out, the present invention has extremely low surface resistivity, has excellent electromagnetic shielding
Effect.
Excellent combination so that the electromagnetic shielding composite material prepared by the present invention has excellent effectiveness.For
For those skilled in the art, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from the present invention
Spirit or essential attributes in the case of, the present invention can be realized in other specific forms.Therefore, no matter from the point of view of which,
The present embodiments are to be considered as illustrative and not restrictive, the scope of the present invention by appended claims rather than
Above description limits, it is intended that including all changes that come within the meaning and range of equivalency of the claims at this
In invention.Any label in claim should not be considered as and be limited the claims involved.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Claims (9)
1. a kind of composite material for shielding electromagnetic radiation, it is characterised in that：The raw material that the composite material is made is carbonization
Silica fibre, thermoplastic acrylic resin, ferrocene Organic Magnet, N- phenyl-β-naphthylamines, zinc stearate, polyvinyl chloride, conduction are filled out
Material, coupling agent, filler, stabilizer and other auxiliary agents；
The preparation process that the composite material is made includes the following steps：
（1）Silicon carbide fibre, ferrocene Organic Magnet, N- phenyl-β-naphthylamines and zinc stearate are mixed, stirred with magnetic stirrer
It mixes 20-40 minutes；
（2）In step（1）Conductive filler and coupling agent is added in mixture, continues stirring 40-60 minutes；
（3）Thermoplastic acrylic resin and polyvinyl chloride are heated to 100-120 DEG C of softening fusion；
（4）By step（2）Mixture be added to step（3）Mixture in, and be added filler, stabilizer and other help
Agent stirs evenly, and continues heating 40-60 minutes；
（5）By step（4）Mix products be put into baking oven and dried at 60-80 DEG C of temperature after, cooled down through injection molding under room temperature
Machine injection molding is up to the composite material for shielding electromagnetic radiation.
2. a kind of composite material for shielding electromagnetic radiation according to claim 1, it is characterised in that：It is made described multiple
The raw material and its mass fraction of condensation material are 45-60 parts of silicon carbide fibre, 35-48 parts of thermoplastic acrylic resin, ferrocene have
28-45 parts of machine magnet, 25-42 parts of N- phenyl-β-naphthylamines, 20-38 parts of zinc stearate, 18-32 parts of polyvinyl chloride, conductive filler
5-15 parts of 15-26 parts, 5-12 parts of coupling agent, 10-18 parts of filler, 8-16 parts of stabilizer and other auxiliary agents.
3. a kind of composite material for shielding electromagnetic radiation according to claim 1, it is characterised in that：It is made described multiple
The raw material and its mass fraction of condensation material are 52 parts of silicon carbide fibre, 42 parts of thermoplastic acrylic resin, ferrocene Organic Magnet
36 parts, 33 parts of N- phenyl-β-naphthylamines, 29 parts of zinc stearate, 26 parts of polyvinyl chloride, 22 parts of conductive filler, 8 parts of coupling agent, filling
10 parts of 14 parts of agent, 12 parts of stabilizer and other auxiliary agents.
4. a kind of composite material for shielding electromagnetic radiation according to claim 1, it is characterised in that：The coupling agent
For methyl isopropyl Ketone and 3- thiocyanatopropyltriethoxysilanes.
5. a kind of composite material for shielding electromagnetic radiation according to claim 1, it is characterised in that：
The filler is nitrogen-contained rare earth magnetic powder.
6. a kind of composite material for shielding electromagnetic radiation according to claim 1, it is characterised in that：The conduction is filled out
Material is acetylene carbon black, mica sheet, glass fibre and nanometer gadolinium sesquioxide, weight part ratio 1:2:3:1.
7. a kind of composite material for shielding electromagnetic radiation according to claim 1, it is characterised in that：Described other help
Agent includes fire retardant, antioxidant, antistatic agent.
8. a kind of composite material for shielding electromagnetic radiation according to claim 7, it is characterised in that：The fire retardant
For the mixture of one or both of antimony oxide, magnesium hydroxide and aluminium hydroxide；The antioxidant be antioxidant DNP,
The mixture of one or both of anti-oxidant DLTP and antioxidant TNP；The antistatic agent is that nonionic resists quiet dose.
9. a kind of composite material for shielding electromagnetic radiation according to claim 1, it is characterised in that：The stabilizer
For dimethyl dimercapto 2-ethyl hexyl ethanoate tin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810188284.XA CN108285604A (en) | 2018-03-07 | 2018-03-07 | A kind of composite material for shielding electromagnetic radiation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810188284.XA CN108285604A (en) | 2018-03-07 | 2018-03-07 | A kind of composite material for shielding electromagnetic radiation |
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| CN108285604A true CN108285604A (en) | 2018-07-17 |
Family
ID=62833147
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| CN201810188284.XA Withdrawn CN108285604A (en) | 2018-03-07 | 2018-03-07 | A kind of composite material for shielding electromagnetic radiation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113999472A (en) * | 2021-11-23 | 2022-02-01 | 苏州聚冠复合材料有限公司 | Self-generating free perovskite polymer resin material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5975939A (en) * | 1982-10-26 | 1984-04-28 | San Aroo Kagaku Kk | Production of vinyl chloride polymer composition |
| CN102093651A (en) * | 2010-12-27 | 2011-06-15 | 康泰塑胶科技集团有限公司 | Inflaming retarding electromagnetic shielding polyvinyl chloride material and production method thereof as well as electrician sleeve |
| CN102802395A (en) * | 2012-08-19 | 2012-11-28 | 长沙拓智金属材料科技有限责任公司 | Electromagnetic shielding composite coating resistant to information leakage and radiation pollution |
| CN106832666A (en) * | 2017-01-22 | 2017-06-13 | 浙江同正管道技术有限公司 | Polyvinyl chloride pipe for electromagnetism interference and preparation method thereof |
| CN107011599A (en) * | 2017-06-05 | 2017-08-04 | 合肥嘉仕诚能源科技有限公司 | A kind of solar power plant nano electromagnetic shielding material and preparation method thereof |
-
2018
- 2018-03-07 CN CN201810188284.XA patent/CN108285604A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5975939A (en) * | 1982-10-26 | 1984-04-28 | San Aroo Kagaku Kk | Production of vinyl chloride polymer composition |
| CN102093651A (en) * | 2010-12-27 | 2011-06-15 | 康泰塑胶科技集团有限公司 | Inflaming retarding electromagnetic shielding polyvinyl chloride material and production method thereof as well as electrician sleeve |
| CN102802395A (en) * | 2012-08-19 | 2012-11-28 | 长沙拓智金属材料科技有限责任公司 | Electromagnetic shielding composite coating resistant to information leakage and radiation pollution |
| CN106832666A (en) * | 2017-01-22 | 2017-06-13 | 浙江同正管道技术有限公司 | Polyvinyl chloride pipe for electromagnetism interference and preparation method thereof |
| CN107011599A (en) * | 2017-06-05 | 2017-08-04 | 合肥嘉仕诚能源科技有限公司 | A kind of solar power plant nano electromagnetic shielding material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 吴瑞雯 等: "二茂铁有机磁性材料的应用", 《科学技术与工程》 * |
| 沈自才 等: "《航天材料工程学》", 31 August 2016, 国防工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113999472A (en) * | 2021-11-23 | 2022-02-01 | 苏州聚冠复合材料有限公司 | Self-generating free perovskite polymer resin material and preparation method thereof |
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Application publication date: 20180717 |