CN105062091A - Ferrocene-based chiral poly Schiff base salt/graphene composite wave-absorbing material - Google Patents
Ferrocene-based chiral poly Schiff base salt/graphene composite wave-absorbing material Download PDFInfo
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Abstract
The present invention discloses a ferrocene-based chiral poly Schiff base salt/graphene composite wave-absorbing material, wherein a ferrocene-based chiral poly Schiff base salt and graphene are compounded so as to be adopted as a wave-absorbing medium, and then a paraffin matrix is added to prepare the ferrocene-based chiral poly Schiff base salt/graphene composite wave-absorbing material, wherein the mass ratio of the ferrocene-based chiral poly Schiff base salt to the whole composite material is 1:4-5, the mass ratio of the graphene to the whole composite material is 1:10-20, and the mass ratio of the paraffin matrix to the whole composite material is 7:10. According to the present invention, the composite material has characteristics of excellent wave-absorbing performance, high absorption intensity, wide absorption frequency band, simple preparation, low density and small thickness, and has wide application prospects in the fields of wave-absorbing materials, antistatic materials, electromagnetic shielding materials, and the like.
Description
Technical field
The present invention is a kind of ferrocenyl chirality polyShiff base salt/Graphene composite wave-suction material, relates to a kind of hertzian wave composite wave-suction material and preparation method thereof, particularly provides a kind of Radar Stealth Composites, belong to absorbing material technical field.
Background technology
Absorbing material refers to and can absorb the electromagnetic wave energy projecting its surface, and make electromagnetic wave energy be converted into a class material of the energy of heat energy or other form by the dielectric loss of material, absorbing material general requirement high-selenium corn, bandwidth, the features such as quality is light and structure properties is stable under used environment, conventional absorbing material mainly contains: ferrite, metal fine powder, semiconductor material, conduction high polymer, carbon black, polycrystalline iron fiber etc., at present, invisible coating traditional is both at home and abroad still to be absorbed as major objective by force, there is a large amount of outstanding problem has to be solved: narrower absorption frequency range cannot resist the comprehensive scouting of wide-band radar wave, wave absorbing efficiency is low, large and the thickness conference of absorbing material density significantly increases system weight, the maneuvering ability of influential system, the bonding strength of coating and matrix is not enough, easily comes off.
Public publication number is CN101550003A, and nano-graphite alkenyl composite wave-absorbing material by name and preparation method thereof, disclose a kind of nano-graphite alkenyl composite wave-absorbing material, matrix material comprises Graphene and nanoparticle deposition material.Its feature is the surface and the interlayer that are deposited on Graphene with metal or metal oxide nanoparticles, adopts galvanic deposit mode to obtain by metal-salt and Graphene.This material has stronger absorption of electromagnetic wave in low-frequency range, can reach maximum loss-32dB at 6.7GHz place, but its absorption band higher than-5dB is less than 2GHz, and frequency band is narrower, and adopt electrodip process preparation, electrolytic solution can cause certain pollution to environment simultaneously.Publication number is CN103725080A, the Chinese patent document of coating type ferrocene polymer magnet-semiconductor complex composite wave-suction material by name and preparation method, discloses the preparation method that a kind of nano level coccoid ferrocene polymer magnet-semiconductor complex and electrical loss meterial additive make composite wave-suction material.This composite wave-suction material can be sprayed at the metallic substrate surface of any shape easily, generates tough and tensile elastic microwave absorbing coating, and at 2-12GHz, maximum attenuation can reach-14dB, the widest 7.5GHz that reaches of its absorption band, and main drawback is that absorption intensity is not high.The patent No. is 103483517A, a kind of chirality polyShiff base salt/ferrite wave-absorbing material by name and preparation method thereof.Disclose a kind of chirality polyShiff base salt/ferrite wave-absorbing material and preparation method thereof, this material is using a kind of chirality polyShiff base Ag salt as electro-conductive material, and ferrite carries out electromagnetic matching as magnetic loss material.When thickness is 1.5mm, at 8-18GHz, but its absorption band lower than-5dB is 6.08GHz, z maximum attenuation can reach-17.2dB, and it is large that main drawback is that the not high and ferrite of absorption intensity has quality as absorbing material, the shortcoming that density is large.
Absorbing material as chirality, compared with general absorbing material, has three distinguishing features: one is the cross polarization of electromagnetic field; Two are adjustment chirality parameters than adjust dielectric parameter and magnetic permeability easy, no reflection events requirement can be met on wider frequency band; Three be chiral material frequency sensitivity than specific inductivity and magnetic permeability little, easily realize wideband absorb.Ferrocene has aromaticity, high stability and good solubility, make it more easily and other organo-functional groups carry out chemical association, prepare the functional materials with characteristics such as electricity, light, magnetic.Ferrocenyl is introduced in chirality polyShiff base and forms electrical loss material, so with the electro-conductive material compound such as Graphene, inhale in ripple frequency band in raising absorbing property, expansion there is very large potential.
Ferrocenyl chirality polyShiff base salt/Graphene composite wave-suction material in the present invention is 2.0mm at thickness, and frequency is that 12.1GHz place can reach maximum absorption-22.95dB, and the bandwidth that reflection loss reaches below-5dB is 9.1GHz(8.9-18).This absorbing material is 2.5mm at thickness, at 2-18GHz, can reach maximum attenuation-20.6dB.Absorption band lower than-5dB is 8.4(6.9-15.3) GHz.It is low-density organic materials that chirality gathers Schiff, Graphene also has the little advantage of density, both combinations are solved common absorbing material density large, thickness is large, the problem that absorption intensity is not high, the absorption band simultaneously lower than-5dB obtains larger expansion, can reach 9.1GHz, compared with existing absorbing material, excellent performance.
Summary of the invention
The present invention is directed to the deficiency that existing electromagnetic wave absorbent material exists, a kind of ferrocenyl chiral schiff base salt/Graphene composite wave-suction material and preparation method thereof is provided, product ferrocenyl chirality polyShiff base salt/Graphene composite wave-suction material of preparing of the present invention has that absorbing property is strong, density is little, thickness is little, stable performance, prepares simple advantage.
In a kind of ferrocenyl chirality of the present invention polyShiff base salt/Graphene composite wave-suction material, 1:4 ~ 5 that described ferrocenyl chirality polyShiff base salt and the mass ratio of whole matrix material are, the mass ratio of Graphene and whole matrix material is 1:10 ~ 20, and the mass ratio of paraffin matrix and whole matrix material is 7:10.Preparation process is:
(1) ferrocene carboxaldehyde and dehydrated alcohol are according to the ratio of 1g/5ml, ferrocene carboxaldehyde are added stirring and dissolving in dehydrated alcohol, are warming up to 50 DEG C under reflux conditions, obtain ferrocene carboxaldehyde solution.
(2) chirality (R)-1; 2-propylene diamine and dehydrated alcohol are according to the ratio of 1g/10ml; by chirality (R)-1; 2-propylene diamine ethanol solution slowly instills in ferrocene carboxaldehyde solution; after dripping off within 30min, at 50 DEG C, nitrogen protection stirring and refluxing reacts 5 hours, obtains solution A.
(3) solution A filtered, gained filter cake is vacuum-drying 12h at 40 DEG C, obtains ferrocenyl chiral bidentate Schiff's base.
(4) ferrocenyl chiral bidentate Schiff's base and trichloromethane are according to the ratio of 1g/5ml, be dissolved in trichloromethane, be warming up to 60 DEG C under condensing reflux condition by ferrocenyl chiral bidentate Schiff's base; The nitrobenzene solution of to be the chloroform soln of the p-phthaloyl chloride of 1g/2ml and concentration respectively by concentration be 1g/10ml aluminum chloride slowly adds in ferrocenyl chiral bidentate Schiff's base solution; be warming up to 80 DEG C; nitrogen protection stirring and refluxing reacts 24 hours, obtains solution B.
(5) ferrous sulfate becomes the aqueous solution with distilled water according to the proportional arrangement of 1g/1ml; ferrous sulfate aqueous solution is added in solution B; nitrogen protection stirring and refluxing reacts 24 hours; subsequently by gained solution decompression suction filtration; after gained filter cake uses trichloromethane, absolute ethanol washing 2-3 time successively; vacuum-drying 12 hours, obtains ferrocenyl chirality polyShiff base salt.
(6) ferrocenyl chiral schiff base salt is put into dehydrated alcohol and carry out ultrasonic disperse, obtain ferrocenyl chirality polyShiff base salt dehydrated alcohol suspension; Graphene is put into dehydrated alcohol and carries out ultrasonic disperse, obtain Graphene dehydrated alcohol dispersion liquid; Ferrocenyl chirality polyShiff base salt suspensioning liquid is added in Graphene dehydrated alcohol dispersion liquid and carries out ultrasonic disperse, obtain blend; Blend is filtered, the filter cake obtained is at 40 DEG C after dry 12h, put into ball mill with the rotating speed ball milling 20 minutes of 150r/min, the ferrocenyl chirality polyShiff base salt/Graphene composite wave-absorbing medium obtained fully mixes with paraffin matrix again, obtained ferrocenyl chirality polyShiff base salt/Graphene composite wave-suction material.
The mol ratio of described ferrocene carboxaldehyde and chirality (R)-1,2-propylene diamine is 2:1.
Described ferrocenyl chiral bidentate Schiff's base and the mol ratio of p-phthaloyl chloride, aluminum chloride and ferrous sulfate are: 1:1:5:1.The volume ratio of ferrous sulfate aqueous solution and solution B is 1:50.
Described ferrocenyl chirality polyShiff base salt is (R)-1,2-Propane Diamine ferrocene carboxaldehyde polyShiff base molysite.
Described Graphene specific conductivity is 10-100S/cm.
Described ferrocenyl chirality polyShiff base salt and Graphene mass ratio are 2 ~ 5:1.
Described ferrocenyl chirality polyShiff base salt/Graphene composite wave-absorbing medium and the mass ratio of paraffin matrix are 3:7.
advantage of the present invention
The present invention have absorbing property strong, inhale ripple bandwidth, density is little, thickness is little, stable performance, the simple advantage of preparation.The spirane structure of chiral material can cause electromagnetic cross polarization, easily realizes wideband absorb by regulating chirality parameter.Ferrocenyl polyShiff base salt belongs to Organic Magnet, and proportion is little, easily hot-forming, has magnetic loss to hertzian wave.Graphene has the little advantage of proportion equally, and stable performance, has electrical loss to hertzian wave.This composite wave-suction material the condition of passing ratio can realize electromagnetic impedance match, can obtain excellent wave-absorbing effect by the synergistic function of ferrocenyl chirality polyShiff base salt and Graphene.
Embodiment
embodiment 1
(1) 0.04mol ferrocene carboxaldehyde is added stirring and dissolving in 43ml dehydrated alcohol, under reflux conditions, be warming up to 50 DEG C, obtain ferrocene carboxaldehyde solution.
(2) 0.02mol chirality (R)-1,2-propylene diamine is dissolved in 15ml dehydrated alcohol; Slowly instill in ferrocene carboxaldehyde solution by chirality (R)-1,2-propylene diamine solution, after dripping off within 30min, at 50 DEG C, nitrogen protection stirring and refluxing reacts 5 hours, obtains solution A.
(3) solution A filtered, gained filter cake is vacuum-drying 12h at 40 DEG C, obtains ferrocenyl chirality (R)-1,2-propylene diamine Bis-Schiff Bases.
(4) by 0.01mol ferrocenyl chirality (R)-1; 2-propylene diamine Bis-Schiff Bases is dissolved in 14mL trichloromethane; 60 DEG C are warming up under condensing reflux condition; 0.01mol p-phthaloyl chloride, 0.05mol aluminum chloride are dissolved in 30mL trichloromethane, 30mL oil of mirbane respectively; slowly add in the chloroform soln of ferrocenyl chirality (R)-1,2-propylene diamine Bis-Schiff Bases, raised temperature to 80 DEG C; nitrogen protection stirring and refluxing reacts 24 hours, obtains solution B.
(5) 0.01mol ferrous sulfate is dissolved in 1.8mL deionized water; add in solution B; react 24 hours under continuing nitrogen protection stirring and refluxing; subsequently by gained solution decompression suction filtration; gained filter cake trichloromethane and dehydrated alcohol repetitive scrubbing 5 times; put into vacuum drying oven dry 12 hours, obtain ferrocenyl chirality poly-(R)-1,2-propylene diamine Schiff alkali salt.
(6) 0.4g ferrocenyl chirality poly-(R)-1,2-propylene diamine Schiff alkali salt is put into 10mL dehydrated alcohol and carry out ultrasonic disperse, obtain ferrocenyl chirality poly-(R)-1,2-propylene diamine Schiff alkali salt dehydrated alcohol suspension.0.1g Graphene is put into 10mL dehydrated alcohol and carries out ultrasonic disperse, obtain Graphene dehydrated alcohol dispersion liquid.Ferrocenyl chirality poly-(R)-1,2-propylene diamine Schiff's base salt suspensioning liquid is added in graphene dispersing solution and carries out ultrasonic disperse, obtain ultrasonic blend; Filtered by blend, the filter cake obtained puts into ball mill with the speed ball milling 20 minutes of 150r/min at 40 DEG C after dry 12h, then obtains ferrocenyl chirality polyShiff base salt/Graphene composite wave-suction material after fully mixing with 1.17g paraffin.
This material is pressed in particular manufacturing craft the annulus of external diameter 7mm, internal diameter 3mm, thickness 2mm, with the electromagnetic parameter of HP-8722ES vector network analyzer test material, test frequency scope is 1 – 18GHz.Its absorbing property is estimated according to equation below: (1) Z
in=Z
0(μ
r/ ε
r) 1/2tanh [
j(2 π d/c) (μ
r/ ε
r)
1/2],
(2)RL(dB)=RL(dB)=20log|(Zin－1)/(Zin＋1)|。
Show that this material is being 2.0mm at thickness, at 2-18GHz, can reach maximum attenuation-22.95dB.Absorption band lower than-5dB is 9.1GHz.
embodiment 2
(1) 0.06mol ferrocene carboxaldehyde is added stirring and dissolving in 65ml dehydrated alcohol, under reflux conditions, be warming up to 50 DEG C, obtain ferrocene carboxaldehyde solution.
(2) 0.03mol chirality (R)-1,2-propylene diamine is dissolved in 22ml dehydrated alcohol; Slowly instill in ferrocene carboxaldehyde solution by chirality (R)-1,2-propylene diamine solution, after dripping off within 30min, at 50 DEG C, nitrogen protection stirring and refluxing reacts 5 hours, obtains solution A.
(3) solution A filtered, gained filter cake is vacuum-drying 12h at 40 DEG C, obtains ferrocenyl chirality (R)-1,2-propylene diamine Bis-Schiff Bases.
(4) by 0.02mol ferrocenyl chirality (R)-1; 2-propylene diamine Bis-Schiff Bases is dissolved in 30mL trichloromethane; 60 DEG C are warming up under condensing reflux condition; 0.02mol p-phthaloyl chloride, 0.10mol aluminum chloride are dissolved in 30mL trichloromethane, 80mL oil of mirbane respectively; slowly join ferrocenyl chirality (R)-1; in the chloroform soln of 2-propylene diamine Bis-Schiff Bases; raised temperature to 80 DEG C; nitrogen protection stirring and refluxing reacts 24 hours, obtains solution B.
(5) 0.02mol ferrous sulfate is dissolved in 3.2mL deionized water; add in solution B; react 24 hours under continuing nitrogen protection stirring and refluxing; subsequently by gained solution decompression suction filtration; gained filter cake trichloromethane and dehydrated alcohol repetitive scrubbing 5 times; put into vacuum drying oven dry 12 hours, obtain ferrocenyl chirality poly-(R)-1,2-propylene diamine Schiff alkali salt.
(6) 1.0g ferrocenyl chirality poly-(R)-1,2-propylene diamine Schiff alkali salt is put into 10mL dehydrated alcohol and carry out ultrasonic disperse, obtain ferrocenyl chirality poly-(R)-1,2-propylene diamine Schiff alkali salt dehydrated alcohol suspension.0.2g Graphene is put into 10mL dehydrated alcohol and carries out ultrasonic disperse, obtain Graphene dehydrated alcohol dispersion liquid.Ferrocenyl chirality poly-(R)-1,2-propylene diamine Schiff's base salt suspensioning liquid is added in graphene dispersing solution and carries out ultrasonic disperse, obtain ultrasonic blend.Filtered by blend, the filter cake obtained puts into ball mill with the speed ball milling 20 minutes of 150r/min at 40 DEG C after dry 12h, then obtains ferrocenyl chirality polyShiff base salt/Graphene composite wave-suction material after fully mixing with 2.8g paraffin.
This material is pressed in particular manufacturing craft the annulus of external diameter 7mm, internal diameter 3mm, thickness 2mm, with the electromagnetic parameter of HP-8722ES vector network analyzer test material, test frequency scope is 1 – 18GHz.Its absorbing property is estimated according to equation below: (1) Z
in=Z
0(μ
r/ ε
r) 1/2tanh [
j(2 π d/c) (μ
r/ ε
r)
1/2],
(2)RL(dB)=20log|(Zin－1)/(Zin＋1)|。
Show that this material is being 2.5mm at thickness, at 2-18GHz, can reach maximum attenuation-20.6dB.Absorption band lower than-5dB is 8.4GHz.
Note: this patent is subsidized by national natural science fund subsidy project (21264011) and aviation fund (2014ZF56020).
Claims (7)
1. ferrocenyl chirality polyShiff base salt/Graphene composite wave-suction material, it is characterized in that: 1:4 ~ 5 that described ferrocenyl chirality polyShiff base salt and the mass ratio of whole matrix material are, the mass ratio of Graphene and whole matrix material is 1:10 ~ 20, and the mass ratio of paraffin matrix and whole matrix material is 7:10; Preparation process is:
(1) ferrocene carboxaldehyde and dehydrated alcohol are according to the ratio of 1g/5ml, ferrocene carboxaldehyde are added stirring and dissolving in dehydrated alcohol, are warming up to 50 DEG C under reflux conditions, obtain ferrocene carboxaldehyde solution;
(2) chirality (R)-1,2-propylene diamine and dehydrated alcohol are according to the ratio of 1g/10ml, by chirality (R)-1,2-propylene diamine ethanol solution slowly instills in ferrocene carboxaldehyde solution, after dripping off within 30min, at 50 DEG C, nitrogen protection stirring and refluxing reacts 5 hours, obtains solution A;
(3) solution A filtered, gained filter cake is vacuum-drying 12h at 40 DEG C, obtains ferrocenyl chiral bidentate Schiff's base;
(4) ferrocenyl chiral bidentate Schiff's base and trichloromethane are according to the ratio of 1g/5ml, be dissolved in trichloromethane, be warming up to 60 DEG C under condensing reflux condition by ferrocenyl chiral bidentate Schiff's base; The aluminum chloride nitrobenzene solution of to be the p-phthaloyl chloride chloroform soln of 1g/2ml and concentration respectively by concentration be 1g/10ml slowly adds in ferrocenyl chiral bidentate Schiff's base solution, be warming up to 80 DEG C, nitrogen protection stirring and refluxing reacts 24 hours, obtains solution B;
(5) in solution D, the ferrous sulfate aqueous solution that concentration is 1g/1ml is added, nitrogen protection stirring and refluxing reacts 24 hours, subsequently by gained solution decompression suction filtration, after gained filter cake uses trichloromethane, absolute ethanol washing 2-3 time successively, vacuum-drying 12 hours, obtains ferrocenyl chirality polyShiff base salt;
Ferrocenyl chiral schiff base salt is put into dehydrated alcohol and carries out ultrasonic disperse, obtain ferrocenyl chirality polyShiff base salt dehydrated alcohol suspension; Graphene is put into dehydrated alcohol and carries out ultrasonic disperse, obtain Graphene dehydrated alcohol dispersion liquid; Ferrocenyl chirality polyShiff base salt suspensioning liquid is added in Graphene dehydrated alcohol dispersion liquid and carries out ultrasonic disperse, obtain blend; Blend is filtered, the filter cake obtained is at 40 DEG C after dry 12h, put into ball mill with the rotating speed ball milling 20 minutes of 150r/min, the ferrocenyl chirality polyShiff base salt/Graphene composite wave-absorbing medium obtained fully mixes with paraffin matrix again, obtained ferrocenyl chirality polyShiff base salt/Graphene composite wave-suction material.
2. a kind of ferrocenyl chirality polyShiff base salt/Graphene composite wave-suction material according to claim 1, is characterized in that: the mol ratio of described ferrocene carboxaldehyde and chirality (R)-1,2-propylene diamine is 2:1.
3. a kind of ferrocenyl chirality polyShiff base salt/Graphene composite wave-suction material according to claim 1, is characterized in that the mol ratio of described ferrocenyl chiral bidentate Schiff's base and p-phthaloyl chloride, aluminum chloride and ferrous sulfate is: 1:1:5:1; The volume ratio of ferrous sulfate aqueous solution and solution B is 1:50.
4. a kind of ferrocenyl chirality polyShiff base salt/Graphene composite wave-suction material according to claim 1, is characterized in that described ferrocenyl chirality polyShiff base salt is for (R)-1,2-Propane Diamine ferrocene carboxaldehyde polyShiff base molysite.
5. a kind of ferrocenyl chirality polyShiff base salt/Graphene composite wave-suction material according to claim 1, is characterized in that: described Graphene specific conductivity is 10-100S/cm.
6. a kind of ferrocenyl chirality polyShiff base salt/Graphene composite wave-suction material according to claim 1, is characterized in that: described ferrocenyl chirality polyShiff base salt and Graphene mass ratio are 2 ~ 5:1.
7. a kind of ferrocenyl chirality according to claim 1 gathers Ji Xifu alkali salt/Graphene composite wave-suction material, it is characterized in that: the mass ratio of described ferrocenyl chirality polyShiff base salt/Graphene composite wave-absorbing medium and paraffin matrix is 3:7.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165008A (en) * | 2018-02-07 | 2018-06-15 | 南昌航空大学 | 1,1- diacetyl ferrocene chirality polyShiff bases salt/graphene composite wave-suction material |
| CN108299833A (en) * | 2018-02-07 | 2018-07-20 | 南昌航空大学 | A kind of chirality polyShiff base cobalt salt composite wave-suction material |
| CN110655788A (en) * | 2019-11-19 | 2020-01-07 | 哈尔滨理工大学 | Molybdenum disulfide/polyferrocenyl Schiff base composite material and preparation method thereof |
| CN116217312A (en) * | 2023-02-22 | 2023-06-06 | 浙江大学 | Low-migration ferrocenyl functionalized graphene oxide burning rate catalyst and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320602A (en) * | 2001-01-16 | 2001-11-07 | 天津大学 | Retinyl Schiff's base-iron complex as microwave absorbent and its preparing process |
| CN102532889A (en) * | 2012-01-09 | 2012-07-04 | 南昌航空大学 | Carbon nanotube-doped poly-Schiff base/ferrite composite stealth material |
| CN102660221A (en) * | 2012-05-16 | 2012-09-12 | 南昌航空大学 | Graphite-doped poly-Schiff base/carbonyl iron powder composite stealth material |
| CN102702740A (en) * | 2012-06-01 | 2012-10-03 | 黑龙江大学 | Graphene/poly Schiff base polymer composite material and preparation method and application thereof |
| KR20140102480A (en) * | 2013-02-14 | 2014-08-22 | 한국기계연구원 | Graphene-magnetic metal composite for absorbing electromagnetic wave and the preparation method thereof |
-
2015
- 2015-08-03 CN CN201510466074.9A patent/CN105062091B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320602A (en) * | 2001-01-16 | 2001-11-07 | 天津大学 | Retinyl Schiff's base-iron complex as microwave absorbent and its preparing process |
| CN102532889A (en) * | 2012-01-09 | 2012-07-04 | 南昌航空大学 | Carbon nanotube-doped poly-Schiff base/ferrite composite stealth material |
| CN102660221A (en) * | 2012-05-16 | 2012-09-12 | 南昌航空大学 | Graphite-doped poly-Schiff base/carbonyl iron powder composite stealth material |
| CN102702740A (en) * | 2012-06-01 | 2012-10-03 | 黑龙江大学 | Graphene/poly Schiff base polymer composite material and preparation method and application thereof |
| KR20140102480A (en) * | 2013-02-14 | 2014-08-22 | 한국기계연구원 | Graphene-magnetic metal composite for absorbing electromagnetic wave and the preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| HENGNONG LI等: ""Synthesis, conductivity, and electromagnetic wave absorption Properties of chiral poly schiff bases and their silver complexes"", 《JOURNAL OF APPLIED POLYMER SCIENCE》 * |
| 赵静等: ""手性吸波材料研究进展"", 《功能材料》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165008A (en) * | 2018-02-07 | 2018-06-15 | 南昌航空大学 | 1,1- diacetyl ferrocene chirality polyShiff bases salt/graphene composite wave-suction material |
| CN108299833A (en) * | 2018-02-07 | 2018-07-20 | 南昌航空大学 | A kind of chirality polyShiff base cobalt salt composite wave-suction material |
| CN108165008B (en) * | 2018-02-07 | 2020-04-28 | 南昌航空大学 | 1, 1-diacetyl ferrocene chiral poly Schiff base salt/graphene composite wave-absorbing material |
| CN110655788A (en) * | 2019-11-19 | 2020-01-07 | 哈尔滨理工大学 | Molybdenum disulfide/polyferrocenyl Schiff base composite material and preparation method thereof |
| CN116217312A (en) * | 2023-02-22 | 2023-06-06 | 浙江大学 | Low-migration ferrocenyl functionalized graphene oxide burning rate catalyst and preparation method thereof |
| CN116217312B (en) * | 2023-02-22 | 2024-02-27 | 浙江大学 | Low-migration ferrocenyl functionalized graphene oxide burning rate catalyst and preparation method thereof |
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