CN102627834B - Preparation method of chitosan modified barium ferrite filling multi-walled carbon nanotube/poly 3-methylthiophene composite wave-absorbing material - Google Patents
Preparation method of chitosan modified barium ferrite filling multi-walled carbon nanotube/poly 3-methylthiophene composite wave-absorbing material Download PDFInfo
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- CN102627834B CN102627834B CN 201210096565 CN201210096565A CN102627834B CN 102627834 B CN102627834 B CN 102627834B CN 201210096565 CN201210096565 CN 201210096565 CN 201210096565 A CN201210096565 A CN 201210096565A CN 102627834 B CN102627834 B CN 102627834B
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- 239000002048 multi walled nanotube Substances 0.000 title claims abstract description 52
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical class [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 title claims abstract description 52
- QENGPZGAWFQWCZ-UHFFFAOYSA-N 3-Methylthiophene Chemical compound CC=1C=CSC=1 QENGPZGAWFQWCZ-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 238000011049 filling Methods 0.000 title claims abstract description 11
- 229920001661 Chitosan Polymers 0.000 title claims abstract description 8
- 239000011358 absorbing material Substances 0.000 title abstract description 16
- 239000000463 material Substances 0.000 claims description 23
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 18
- 239000000243 solution Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 12
- 238000001291 vacuum drying Methods 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000012047 saturated solution Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 4
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910002651 NO3 Inorganic materials 0.000 claims description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims description 3
- 229910001864 baryta Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000004132 cross linking Methods 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 238000000967 suction filtration Methods 0.000 claims description 3
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 18
- 239000002041 carbon nanotube Substances 0.000 abstract description 18
- 229910021393 carbon nanotube Inorganic materials 0.000 abstract description 18
- 238000010521 absorption reaction Methods 0.000 abstract description 16
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 2
- 230000005670 electromagnetic radiation Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002322 conducting polymer Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Abstract
The invention provides a preparation method of a chitosan modification barium ferrite filling multi-walled carbon nanotube/poly 3-methylthiophene composite wave-absorbing material. The method utilizes a carbon nanotube as a raw material, after the carbon nanotube is filled with barium ferrite, chitosan is coated on the carbon nanotube for modification, and then the carbon nanotube is composited with poly 3-methylthiophene to obtain the novel wave-absorbing material integrating magnetic loss, electrical loss and carbon nanotube wave absorption. Requirements for being thin, light, wide and strong of the wave-absorbing material are met. Therefore, the composite wave-absorbing material has wide application prospect in aspects of microwave absorption, electromagnetic radiation resistance and the like.
Description
Technical field
The invention belongs to the electromagnetic wave absorbent material preparation field, particularly a kind ofly integrate the preparation method that conduction loss, magnetic loss and carbon nanotube are inhaled the multi-walled carbon nano-tubes that the chitosan-modified barium ferrite of ripple fills/poly-3 methyl thiophene composite wave-suction material.
Background technology
Electromagnetic wave absorbent material (Electromagnetic Wave Absorbing Materials) refer to absorb and the to decay hertzian wave of incident is with the electromagnetic energy energy transform into heat energy and with its dissipation or a class material that hertzian wave is disappeared because of interference.In broad terms, it comprises anti-electromagnetic interference (EMI) and microwave absorbing material (RAM), even comprises the wide spectrum from the sound wave to the infrared absorbing material, and its range of application is also in continuous expansion.Classify from loss mechanism, absorbing material can be divided into resistor-type, dielectric type and magneticmedium type 3 large classes, and wherein, the resistor-type loss also can cover in the dielectric loss and go.
In numerous absorbing materials, ferrite and metal-powder absorption agent have good absorbing property and lower cost, but that its shortcoming is density is too large, are difficult for preparing the light absorbing material of quality.Polythiophene base conducting polymer is as microwave absorption, and is main because have the electrical loss characteristic, rather than has the magnetic loss characteristic, and obtain desirable wave-absorbing effect also must have the magnetic loss characteristic.Along with the progress of science and technology, more and more deep to the research of carbon nanotube, it receives much concern in suction ripple field.Because the carbon nanotube yardstick is much smaller than infrared rays and radar wave wavelength, so nanoparticle material is strong than conventional material to the absorptivity of infrared and microwave.Along with reducing of size, nanoparticle material has the high-specific surface area than large 3 ~ 4 orders of magnitude of conventional coarse dispersion material, along with the rising of surface atom ratio, lattice defect increase, dangling bonds increase, form easily the interface polarization of electrode, high specific surface area can cause multiple scattering again.In addition, the part carbon nanotube has special spirane structure and chirality, and this all causes carbon nanotube to have high absorbing property.Therefore, as the prepared absorbing material of absorption agent, have the ripple of suction bandwidth, controlled and compatible good, the characteristics such as quality light, thin thickness with carbon nanotube, its shortcoming is that the magnetic permeability of carbon nanotube is lower.
Therefore, if with carbon nanotube and the effective combination of magnetic substance, compound with conduction high polymer again, be expected to obtain integrating the novel wave-absorbing material that magnetic loss, conduction loss and carbon nanotube are inhaled ripple, satisfy the requirement of absorbing material " thin, light, wide, strong ", at aspects such as microwave absorbing and environment protection healths extremely widely application prospect is arranged.
Summary of the invention
The purpose of this invention is to provide the preparation method of the multi-walled carbon nano-tubes that a kind of chitosan-modified barium ferrite fills/poly-3 methyl thiophene composite wave-suction material, this matrix material can be used as the absorption of low frequency microwave.The object of the present invention is achieved like this, its preparation method is:
(1) barium ferrite is filled the preparation of multi-walled carbon nano-tubes
Under the room temperature, the 1.0g multi-walled carbon nano-tubes is put into Erlenmeyer flask, add 40mL iron nitrate saturated solution and 20mL nitrate of baryta saturated solution, under the agitator of 800 rev/mins rotating speeds stirs, dropwise add concentrated nitric acid 15mL and vitriol oil 5mL, after ultrasonic wave is uniformly dispersed, interacted 10 days, filter, after the vacuum-drying, put into quartz boat, the tube-type atmosphere furnace of packing into, pass into nitrogen, 2 liter/mins of clocks of gas flow, heat-up rate is 3 ℃/minute, is warming up to 700 ℃, keep 2h, after naturally cooling to room temperature, again filter after being about 7 with deionized water rinsing to pH, vacuum-drying obtains the multi-walled carbon nano-tubes that barium ferrite is filled.
(2) chitosan-modified barium ferrite is filled the preparation of multi-walled carbon nano-tubes
It is 2 dilute acetic acid solution that the chitosan of 1.0g is dissolved in the pH value, is stirred to abundant dissolving; Then take by weighing the multi-walled carbon nano-tubes that the 1.0g barium ferrite is filled, with mixed solution ultra-sonic dispersion 2h, magnetic agitation 1h, in dispersion system, drip weak ammonia again, make in the compound system pH value greater than 10, behind the heating mixing solutions to 60 ℃, adding 0.05g massfraction is 6% glutaraldehyde, crosslinking reaction 1.5h, centrifugal collection, dilute acetic acid washes rear 50 ℃ of vacuum-drying 24h and obtains the multi-walled carbon nano-tubes that chitosan-modified barium ferrite is filled.
(3) preparation of poly-3 methyl thiophene
Under the room temperature condition, with the anhydrous FeCl of 0.25mol
3Join in the there-necked flask that contains the 100mL chloroformic solution, stir about 30min obtains the sap green dirty solution, and the 25mL chloroformic solution that will contain 10mL3-thiotolene monomer dropwise splashes in the there-necked flask stirring reaction 10h.React complete after, with the solvent evaporate to dryness, pour the HCl solution of 1mol/L under the room temperature, stirring at room 12h, suction filtration, distilled water wash 2 ~ 3 times is colourless to filtrate, 50 ℃ of vacuum-drying 24h obtain poly-3 methyl thiophene.
(4) chitosan-modified barium ferrite is filled the preparation of multi-walled carbon nano-tubes/poly-3 methyl thiophene composite wave-suction material
The multi-walled carbon nano-tubes massfraction 20% ~ 40% of filling according to chitosan-modified barium ferrite mixes with poly-3 methyl thiophene, grinds, and obtains the multi-walled carbon nano-tubes of chitosan-modified barium ferrite filling/gather 3 methyl thiophene composite wave-suction material.
Major advantage of the present invention: the one, filled with barium ferrite in carbon nanotube, make it have magnetic, integrate the novel wave-absorbing material that magnetic loss, conduction loss and carbon nanotube are inhaled ripple with compound the obtaining of poly-3 methyl thiophene conduction high polymer again, at aspects such as microwave absorbing and environment protection healths extremely widely application prospect is arranged; The 2nd, make the multi-walled carbon nano-tubes that barium ferrite fills after, modify through Chitosan-coated, its cluster is reduced, compound more abundant with poly-3 methyl thiophene.
Embodiment
Further specify the present invention below in conjunction with embodiment.
The invention provides the preparation method of the multi-walled carbon nano-tubes that a kind of chitosan-modified barium ferrite fills/poly-3 methyl thiophene composite wave-suction material.Be take carbon nanotube as raw material, inner filled with barium ferrite is modified by Chitosan-coated, last makes a kind of novel wave-absorbing material that magnetic loss, electrical loss and carbon nanotube are inhaled ripple that integrates with poly-3 methyl thiophene is compound again.
Embodiment 1
(1) barium ferrite is filled the preparation of multi-walled carbon nano-tubes
Under the room temperature, the 1.0g multi-walled carbon nano-tubes is put into Erlenmeyer flask, add 40mL iron nitrate saturated solution and 20mL nitrate of baryta saturated solution, under the agitator of 800 rev/mins of rotating speeds stirs, dropwise add concentrated nitric acid 15mL and vitriol oil 5mL, after ultrasonic wave is uniformly dispersed, interacted 10 days, filter, after the vacuum-drying, put into quartz boat, the tube-type atmosphere furnace of packing into, pass into nitrogen, 2 liter/mins of clocks of gas flow, heat-up rate is 3 ℃/minute, is warming up to 700 ℃, keep 2h, after naturally cooling to room temperature, again filter after being about 7 with deionized water rinsing to pH, vacuum-drying obtains the multi-walled carbon nano-tubes that barium ferrite is filled.
(2) chitosan-modified barium ferrite is filled the preparation of multi-walled carbon nano-tubes
It is 2 dilute acetic acid solution that the chitosan of 1.0g is dissolved in the pH value, is stirred to abundant dissolving; Then take by weighing the multi-walled carbon nano-tubes that the 1.0g barium ferrite is filled, with mixed solution ultra-sonic dispersion 2h, magnetic agitation 1h, in dispersion system, drip weak ammonia again, make in the compound system pH value greater than 10, behind the heating mixing solutions to 60 ℃, adding 0.05g massfraction is 6% glutaraldehyde, crosslinking reaction 1.5h, centrifugal collection, dilute acetic acid washes rear 50 ℃ of vacuum-drying 24h and obtains the multi-walled carbon nano-tubes that chitosan-modified barium ferrite is filled.
(3) preparation of poly-3 methyl thiophene
Under the room temperature condition, with the anhydrous FeCl of 0.25mol
3Join in the there-necked flask that contains the 100mL chloroformic solution, stir about 30min obtains the sap green dirty solution, and the 25mL chloroformic solution that will contain 10mL 3 methyl thiophene monomer dropwise splashes in the there-necked flask stirring reaction 10h.React complete after, with the solvent evaporate to dryness, pour the HCl solution of 1mol/L under the room temperature, stirring at room 12h, suction filtration, distilled water wash 2 ~ 3 times is colourless to filtrate, 50 ℃ of vacuum-drying 24h obtain poly-3 methyl thiophene.
(4) chitosan-modified barium ferrite is filled the preparation of multi-walled carbon nano-tubes/poly-3 methyl thiophene composite wave-suction material
The multi-walled carbon nano-tubes of getting the chitosan-modified barium ferrite filling of 0.8g mixes with the poly-3 methyl thiophene of 3.2g, grind fully, obtain chitosan-modified barium ferrite and fill multi-walled carbon nano-tubes/poly-3 methyl thiophene composite wave-suction material, its absorption peak can reach 40% greater than the frequency span of-25dB, and the highest absorption peak can reach-37dB.
Embodiment 2
Barium ferrite is filled the preparation of multi-walled carbon nano-tubes, chitosan-modified barium ferrite is filled the preparation of the preparation of multi-walled carbon nano-tubes, poly-3 methyl thiophene with embodiment 1, the multi-walled carbon nano-tubes of getting the chitosan-modified barium ferrite filling of 1.0g mixes with the poly-3 methyl thiophene of 3.0g, grind fully, obtain chitosan-modified barium ferrite and fill multi-walled carbon nano-tubes/poly-3 methyl thiophene composite wave-suction material, its absorption peak can reach 35% greater than the frequency span of-28dB, and the highest absorption peak can reach-40dB.
Embodiment 3
Barium ferrite is filled the preparation of multi-walled carbon nano-tubes, chitosan-modified barium ferrite is filled the preparation of multi-walled carbon nano-tubes, the Preparation Example 1 of poly-3 methyl thiophene, the multi-walled carbon nano-tubes of getting the chitosan-modified barium ferrite filling of 1.2g mixes with the poly-3 methyl thiophene of 2.8g, grind fully, obtain the multi-walled carbon nano-tubes that chitosan-modified barium ferrite fills/poly-3 methyl thiophene composite wave-suction material, its absorption peak can reach 30% greater than the frequency span of-30dB, and the highest absorption peak can reach-38dB.
Embodiment 4
Barium ferrite is filled the preparation of multi-walled carbon nano-tubes, chitosan-modified barium ferrite is filled the preparation of the preparation of multi-walled carbon nano-tubes, poly-3 methyl thiophene with embodiment 1, the multi-walled carbon nano-tubes of getting the chitosan-modified barium ferrite filling of 1.4g mixes with the poly-3 methyl thiophene of 2.6g, grind fully, obtain the multi-walled carbon nano-tubes that chitosan-modified barium ferrite fills/poly-3 methyl thiophene composite wave-suction material, its absorption peak can reach 35% greater than the frequency span of-30dB, and the highest absorption peak can reach-42dB.
Embodiment 5
Barium ferrite is filled the preparation of multi-walled carbon nano-tubes, chitosan-modified barium ferrite is filled the preparation of the preparation of multi-walled carbon nano-tubes, poly-3 methyl thiophene with embodiment 1, the multi-walled carbon nano-tubes of getting the chitosan-modified barium ferrite filling of 1.6g mixes with the poly-3 methyl thiophene of 2.4g, grind fully, obtain the multi-walled carbon nano-tubes that chitosan-modified barium ferrite fills/poly-3 methyl thiophene composite wave-suction material, its absorption peak can reach 35% greater than the frequency span of-28dB, and the highest absorption peak can reach-39dB.
Claims (2)
1. a chitosan-modified barium ferrite is filled the preparation method of multi-walled carbon nano-tubes/poly-3 methyl thiophene composite wave-suction material, it is characterized in that the preparation method is as follows:
(1) barium ferrite is filled the preparation of multi-walled carbon nano-tubes: under the room temperature, the 1.0g multi-walled carbon nano-tubes is put into there-necked flask, add 40mL iron nitrate saturated solution and 20mL nitrate of baryta saturated solution, under the agitator of 800 rev/mins of rotating speeds stirs, dropwise add concentrated nitric acid 15mL and vitriol oil 5mL, after ultrasonic wave is uniformly dispersed, interacted 10 days, filter, after the vacuum-drying, put into quartz boat, the tube-type atmosphere furnace of packing into, pass into nitrogen, 2 liter/mins of clocks of gas flow, heat-up rate is 3 ℃/minute, is warming up to 700 ℃, keep 2h, after naturally cooling to room temperature, be again to filter after 7 with deionized water rinsing to pH, vacuum-drying obtains the multi-walled carbon nano-tubes that barium ferrite is filled;
(2) chitosan-modified barium ferrite is filled the preparation of multi-walled carbon nano-tubes: it is 2 dilute acetic acid solution that the chitosan of 1.0-2.0g is dissolved in the pH value, be stirred to abundant dissolving, then take by weighing 1.0g(1) in the barium ferrite that the makes multi-walled carbon nano-tubes of filling, with mixed solution ultra-sonic dispersion 2h, magnetic agitation 1h, in dispersion system, drip weak ammonia again, make in the compound system pH value greater than 10, behind the heating mixing solutions to 60 ℃, adding 0.05g massfraction is 6% glutaraldehyde, crosslinking reaction 1.5h, centrifugal collection, dilute acetic acid washes rear 50 ℃ of vacuum-drying 24h and obtains the multi-walled carbon nano-tubes that chitosan-modified barium ferrite is filled;
(3) preparation of poly-3 methyl thiophene: under the room temperature condition, with the anhydrous FeCl of 0.25mol
3Join in the there-necked flask that contains the 100mL chloroformic solution, stir 30min, obtain the sap green dirty solution, the 25mL chloroformic solution that will contain 10mL 3 methyl thiophene monomer dropwise splashes in the there-necked flask, behind the stirring reaction 10h, with the solvent evaporate to dryness, pour the HCl solution of 1mol/L into, stirring at room 12h under the room temperature, suction filtration, distilled water wash 2 ~ 3 times is colourless to filtrate, and 50 ℃ of vacuum-drying 24h obtain poly-3 methyl thiophene;
(4) chitosan-modified barium ferrite is filled the preparation of multi-walled carbon nano-tubes/poly-3 methyl thiophene composite wave-suction material: the poly-3 methyl thiophene that makes in the multi-walled carbon nano-tubes massfraction 20% ~ 40% of filling according to the chitosan-modified barium ferrite that makes in (2) and (3) mixes, grind fully, obtain the multi-walled carbon nano-tubes that chitosan-modified barium ferrite fills/poly-3 methyl thiophene composite wave-suction material.
2. the prepared chitosan-modified barium ferrite of according to claim 1 preparation method is filled multi-walled carbon nano-tubes/poly-3 methyl thiophene composite wave-suction material.
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| CN102964571B (en) * | 2012-11-12 | 2015-05-20 | 南昌航空大学 | Preparation method of barium ferrite/carbon nanotube/poly(3-methylthiophene) composite wave-absorbing material |
| CN103632798B (en) * | 2013-12-03 | 2016-02-24 | 东华理工大学 | A kind of preparation method of poly-3 methyl thiophene clad nano nickel-zinc ferrite particle magnetic liquid |
| CN104086953B (en) * | 2014-06-26 | 2017-07-21 | 南昌航空大学 | A kind of chitosan-modified ferrite fills the preparation method of multi-walled carbon nanotube/polythiophene composite wave-suction material |
| CN104098874A (en) * | 2014-06-26 | 2014-10-15 | 南昌航空大学 | Composite wave-absorbing material preparation method |
| CN104147643B (en) * | 2014-08-06 | 2016-05-18 | 江苏双林海洋生物药业有限公司 | Prepare the method for chitosan-carbon nanotube conductive tissue engineering rack |
| CN107057135A (en) * | 2016-12-22 | 2017-08-18 | 中北大学 | A kind of High-performance graphene/FeNixThe preparation of/natural rubber electromagnetic wave absorbent material |
| CN109438927A (en) * | 2018-11-23 | 2019-03-08 | 南昌航空大学 | A kind of chitosan-modified ferrite filling multi-walled carbon nanotube/polythiophene composite wave-suction material preparation method |
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| CN102010577A (en) * | 2010-12-01 | 2011-04-13 | 南昌航空大学 | Method for preparing rare earth-doped ferrite/polythiophene/carbon nano tube microwave absorbent |
| CN102127392A (en) * | 2010-12-01 | 2011-07-20 | 南昌航空大学 | Preparation method of rare earth-doped ferrite-titanium dioxide/polythiophene/carbon nanotube microwave absorbent |
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| CN102010577A (en) * | 2010-12-01 | 2011-04-13 | 南昌航空大学 | Method for preparing rare earth-doped ferrite/polythiophene/carbon nano tube microwave absorbent |
| CN102127392A (en) * | 2010-12-01 | 2011-07-20 | 南昌航空大学 | Preparation method of rare earth-doped ferrite-titanium dioxide/polythiophene/carbon nanotube microwave absorbent |
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