CN102964571A - Preparation method of barium ferrite/carbon nanotube/poly(3-methylthiophene) composite wave-absorbing material - Google Patents
Preparation method of barium ferrite/carbon nanotube/poly(3-methylthiophene) composite wave-absorbing material Download PDFInfo
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- CN102964571A CN102964571A CN2012104496172A CN201210449617A CN102964571A CN 102964571 A CN102964571 A CN 102964571A CN 2012104496172 A CN2012104496172 A CN 2012104496172A CN 201210449617 A CN201210449617 A CN 201210449617A CN 102964571 A CN102964571 A CN 102964571A
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- barium ferrite
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- methyl thiophene
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- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [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 61
- 239000002131 composite material Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 36
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 36
- 239000011358 absorbing material Substances 0.000 title abstract description 4
- -1 poly(3-methylthiophene) Polymers 0.000 title abstract 6
- QENGPZGAWFQWCZ-UHFFFAOYSA-N 3-Methylthiophene Chemical compound CC=1C=CSC=1 QENGPZGAWFQWCZ-UHFFFAOYSA-N 0.000 claims abstract description 70
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000000178 monomer Substances 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 claims abstract description 4
- 239000002048 multi walled nanotube Substances 0.000 claims abstract description 4
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 4
- 239000008187 granular material Substances 0.000 claims description 25
- 238000005303 weighing Methods 0.000 claims description 22
- 239000011159 matrix material Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- 238000001291 vacuum drying Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 6
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 6
- 239000012065 filter cake Substances 0.000 claims description 6
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 6
- 238000000967 suction filtration Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000011240 wet gel Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 3
- 150000001457 metallic cations Chemical class 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229920001940 conductive polymer Polymers 0.000 abstract description 5
- 239000000696 magnetic material Substances 0.000 abstract 2
- 229910000608 Fe(NO3)3.9H2O Inorganic materials 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- XDFCIPNJCBUZJN-UHFFFAOYSA-N barium(2+) Chemical compound [Ba+2] XDFCIPNJCBUZJN-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Abstract
The invention provides a preparation method of a barium ferrite/carbon nanotube/poly(3-methylthiophene) composite wave-absorbing material. The preparation method comprises the following steps: preparing barium ferrite from Ba(NO3)2.6H2O and Fe(NO3)3.9H2O by a sol-gel self-propagating combustion process; and preparing the barium ferrite/carbon nanotube/poly(3-methylthiophene) composite wave-absorbing material from the barium ferrite, multiwall carbon nanotubes with the tube diameters of 20-30nm and 3-methylthiophene monomer by an in-situ polymerization process. The composite material belongs to an inorganic/organic hybrid functional material, has the unique functional properties different from a single conductive polymer or single inorganic magnetic material, and effectively combines and regulates the conductive polymer and inorganic magnetic material to overcome the respective inherent defects, thereby satisfying the requirements for comprehensive properties of small thickness, light weight, wide band and strong absorptivity in the fields of modern military stealth and civil shielding.
Description
Technical field
The invention belongs to the electromagnetic wave absorbent material preparation field, particularly the preparation method of a kind of barium ferrite/carbon nano-tube/poly 3 methyl thiophene composite wave-suction material.
Background technology
Poly-3 methyl thiophene has that unique doping phenomenon, light weight, synthesis technique are simple, physical and chemical performance is good and the characteristic such as environmental stability is good, become one of conductive polymers with fastest developing speed, had broad application prospects in fields such as electromagnetic shielding, stealthy technique, opto-electronic device, anti-corrosion of metal, sensor, electrical condensers.
The present invention by to add barium ferrite in the poly-3 methyl thiophene matrix, carbon nanotube makes this matrix material have good magnetic property and conductivity, prepares the superior electromagnetic wave absorbent material of over-all properties.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of barium ferrite/carbon nano-tube/poly 3 methyl thiophene composite wave-suction material, overcome the defective that single conductive polymers, ferrite wave-absorbing material exist, in order to satisfy the stealthy and over-all properties requirement of " thin thickness, quality are light, bandwidth, absorption strong " that the civil protective field proposes of modern military.
The present invention is achieved like this, and concrete preparation method is as follows:
(1) preparation of barium ferrite: compare BaFe according to the element metering
12O
19Take by weighing 0.60g Ba (NO
3)
2, 11.15g Fe (NO
3)
39H
2O is dissolved in the deionized water fully, will be the 3.83g citric acid adding mentioned solution of 1:1.5 with the metallic cation mol ratio, and the pH value with the ammoniacal liquor regulator solution is 7 again, stirs at 60 ℃ of lower constant temperature and forms wet gels.Wet gel grinds behind the self-propagating combustion at 80 ℃ of lower vacuum-drying 12h, and the powder that grinding is obtained places 950 ℃ of calcinings of tube furnace 3h, and cooling is ground and obtained barium ferrite.
(2) preparation of composite granule in the middle of barium ferrite/carbon nanotube: 4.0g Sodium dodecylbenzene sulfonate (SDBS) is added in the 80mL deionized water, behind the magnetic agitation 30min, add 2.0g caliber 20～30nm multi-walled carbon nano-tubes, reinforcement stirs 30min, add X g(X=0.80～4.0) barium ferrite, suction filtration behind the supersound process 1h, 80 ℃ of vacuum-drying filter cake 12h grind and obtain middle composite granule.
(3) barium ferrite/carbon nano-tube/poly 3 methyl thiophene composite manufacture: take by weighing middle composite granule Y g(Y=0.10～0.30), the 30mL chloroform joins in the there-necked flask, ultra-sonic dispersion 30min, constantly stir the lower 2.0mL of adding 3 methyl thiophene monomer, add the 13.20g FERRIC CHLORIDE ANHYDROUS after stirring 30min, 40 ℃ of lower polymerization 12h, suction filtration, again with dehydrated alcohol, that deionized water is washed till filtrate is colourless, 80 ℃ of vacuum-drying filter cake 12h obtain barium ferrite/carbon nano-tube/poly 3 methyl thiophene matrix material.
With the H-600 transmission electron microscope particle form and the size of barium ferrite/carbon nano-tube/poly 3 methyl thiophene composite wave-suction material are observed, operating voltage is 75kV.Take barium ferrite/carbon nano-tube/poly 3 methyl thiophene mixture (X=4.0, Y=0.10) as example, the mixture particle diameter is 60～80nm.
With the four point probe conductivity meter specific conductivity of barium ferrite/carbon nano-tube/poly 3 methyl thiophene composite wave-suction material is measured.Take barium ferrite/carbon nano-tube/poly 3 methyl thiophene mixture (X=0.80, Y=0.30) as example, the mixture specific conductivity is 1.5845S/cm.
With vibrating sample magnetometer (VSM) barium ferrite/carbon nano-tube/poly 3 methyl thiophene composite wave-suction material is carried out magnetism testing.Take barium ferrite/carbon nano-tube/poly 3 methyl thiophene mixture (X=4.0, Y=0.10) as example, test result is: coercive force is 3246.23Oe, and saturation magnetization is 32.5emug
-1, residual magnetization is 30.2emug
-1
Adopt Agilent 8722ES vector network analyzer test barium ferrite/carbon nano-tube/poly 3 methyl thiophene composite wave-suction material at the reflectivity of 2～18GHz.Take barium ferrite/carbon nano-tube/poly 3 methyl thiophene mixture (X=4.0, Y=0.10) as example, test result is: maximum absorption band appears in the 8.2GHz place, and peak value is-36dB, and reflectivity loss value is lower than-the wide 16.8GHz of reaching of absorption band of 10dB.
Advantage of the present invention: the present invention is combined with each other inorganic particle and conductive polymers from the angle of matrix material, prepares inorganic/organic hybrid functional materials.Barium body oxysome is compared with the traditional magnetic powder with the magnetic composite powder that carbon nanotube is made, when having high magnetic saturation intensity, has again low coercive force, impedance matching property is good, adopting situ aggregation method to prepare barium ferrite/carbon nano-tube/poly 3 methyl thiophene composite wave-suction material with the good 3 methyl thiophene monomer of electroconductibility, strengthened the dielectric loss of matrix material.Therefore, the electrical property that this composite material concurrent is good and magnetic property have important using value in electromagnetic shielding, microwave absorbing field.
Embodiment
The invention will be further described below by embodiment.
Embodiment 1
(1) compares BaFe according to the element metering
12O
19Take by weighing 0.60g Ba (NO
3)
2, 11.15g Fe (NO
3)
39H
2O is dissolved in the deionized water fully, to be the 3.83g citric acid adding mentioned solution of 1:1.5 with the metallic cation mol ratio, pH value with the ammoniacal liquor regulator solution is 7 again, 60 ℃ of constant temperature stir and form wet gel, and 80 ℃ of lower vacuum-drying 12h are behind the self-propagating combustion, grind, powder is placed 950 ℃ of calcinings of tube furnace 3h, and cooling is ground and is obtained barium ferrite.
(2) 4.0g Sodium dodecylbenzene sulfonate (SDBS) is added in the 80mL deionized water, behind the magnetic agitation 30min, add 2.0g caliber 20～30nm multi-walled carbon nano-tubes, reinforcement stirs 30min, add the 4.0g barium ferrite, ultra-sonic dispersion 1h, suction filtration, 80 ℃ of vacuum-drying filter cake 12h grind and obtain middle composite granule.
(3) take by weighing this centre composite granule 0.10g, the 30mL chloroform joins in the there-necked flask, ultra-sonic dispersion 30min, constantly stir the lower 2.0mL of adding 3 methyl thiophene monomer, add the 13.20g FERRIC CHLORIDE ANHYDROUS, 40 ℃ of lower polymerization 12h, suction filtration after stirring 30min, with dehydrated alcohol, that deionized water is washed till filtrate is colourless, 80 ℃ of vacuum-drying filter cake 12h obtain barium ferrite/carbon nano-tube/poly 3 methyl thiophene matrix material (X=4.0, Y=0.10).Prepared this composite wave-absorbing receives material and is lower than in 2～18GHz internal reflection rate loss value-and the frequency span of 10dB reaches 16.8GHz, and minimum reflectance loss value can reach-36dB.
Embodiment 2
The preparation of barium ferrite is with step (1) among the embodiment 1.Take by weighing barium ferrite 4.0g, the preparation method prepares middle composite granule with step (2) among the embodiment 1.Composite granule 0.20g in the middle of taking by weighing, the preparation method prepares barium ferrite/carbon nano-tube/poly 3 methyl thiophene matrix material (X=4.0, Y=0.20) with step (3) among the embodiment 1.Prepared composite wave-suction material is lower than in 2～18GHz internal reflection rate loss value-and the frequency span of 10dB reaches 15.2GHz, and minimum reflectance loss value can reach-40dB.
Embodiment 3
The preparation of barium ferrite is with step (1) among the embodiment 1.Take by weighing barium ferrite 4.0g, the preparation method prepares middle composite granule with step (2) among the embodiment 1.Composite granule 0.30g in the middle of taking by weighing, the preparation method prepares barium ferrite/carbon nano-tube/poly 3 methyl thiophene matrix material (X=4.0, Y=0.30) with step (3) among the embodiment 1.Prepared composite wave-suction material is lower than in 2～18GHz internal reflection rate loss value-and the frequency span of 10dB reaches 14.6GHz, and minimum reflectance loss value can reach-43dB.
Embodiment 4
The preparation of barium ferrite is with step (1) among the embodiment 1.Take by weighing barium ferrite 1.3g, the preparation method prepares middle composite granule with step (2) among the embodiment 1.Composite granule 0.10g in the middle of taking by weighing, the preparation method prepares barium ferrite/carbon nano-tube/poly 3 methyl thiophene matrix material (X=1.3, Y=0.10) with step (3) among the embodiment 1.Prepared matrix material is lower than in 2～18GHz internal reflection rate loss value-and the frequency span of 10dB reaches 13.8GHz, and minimum reflectance loss value can reach-38dB.
Embodiment 5
The preparation of barium ferrite is with step (1) among the embodiment 1.Take by weighing barium ferrite 1.3g, the preparation method prepares middle composite granule with step (2) among the embodiment 1.Composite granule 0.20g in the middle of taking by weighing, the preparation method prepares barium ferrite/carbon nano-tube/poly 3 methyl thiophene matrix material (X=1.3, Y=0.20) with step (3) among the embodiment 1.Prepared composite wave-suction material is lower than in 2～18GHz internal reflection rate loss value-and the frequency span of 10dB reaches 12.1GHz, and minimum reflectance loss value can reach-42dB.
Embodiment 6
The preparation of barium ferrite is with step (1) among the embodiment 1.Take by weighing barium ferrite 1.3g, the preparation method prepares middle composite granule with step (2) among the embodiment 1.Composite granule 0.30g in the middle of taking by weighing, the preparation method prepares barium ferrite/carbon nano-tube/poly 3 methyl thiophene matrix material (X=1.3, Y=0.30) with step (3) among the embodiment 1.Prepared composite wave-suction material is lower than in 2～18GHz internal reflection rate loss value-and the frequency span of 10dB reaches 11.5GHz, and minimum reflectance loss value can reach-45dB.
Embodiment 7
The preparation of barium ferrite is with step (1) among the embodiment 1.Take by weighing barium ferrite 0.8g, the preparation method prepares middle composite granule with step (2) among the embodiment 1.Composite granule 0.10g in the middle of taking by weighing, the preparation method prepares barium ferrite/carbon nano-tube/poly 3 methyl thiophene matrix material (X=0.80, Y=0.10) with step (3) among the embodiment 1.Prepared matrix material is lower than in 2～18GHz internal reflection rate loss value-and the frequency span of 10dB reaches 10.9GHz, and minimum reflectance loss value can reach-34dB.
Embodiment 8
The preparation of barium ferrite is with step (1) among the embodiment 1.Take by weighing barium ferrite 0.8g, the preparation method prepares middle composite granule with step (2) among the embodiment 1.Composite granule 0.20g in the middle of taking by weighing, the preparation method prepares barium ferrite/carbon nano-tube/poly 3 methyl thiophene matrix material (X=0.80, Y=0.20) with step (3) among the embodiment 1.Prepared matrix material is lower than in 2～18GHz internal reflection rate loss value-and the frequency span of 10dB reaches 10.1GHz, and minimum reflectance loss value can reach-37dB.
Embodiment 9
The preparation of barium ferrite is with step (1) among the embodiment 1.Take by weighing barium ferrite 0.8g, the preparation method prepares middle composite granule with step (2) among the embodiment 1.Composite granule 0.30g in the middle of taking by weighing, the preparation method prepares barium ferrite/carbon nano-tube/poly 3 methyl thiophene matrix material (X=0.80, Y=0.30) with step 3) among the embodiment 1.Prepared composite wave-suction material is lower than in 2～18GHz internal reflection rate loss value-and the frequency span of 10dB reaches 9.7GHz, and minimum reflectance loss value can reach-40dB.
Claims (3)
1. the preparation method of barium ferrite/carbon nano-tube/poly 3 methyl thiophene composite wave-suction material is characterized in that the preparation of this composite wave-suction material comprises following steps:
(1) preparation of barium ferrite: compare BaFe according to the element metering
12O
19Take by weighing 0.60g Ba (NO
3)
2, 11.15g Fe (NO
3)
39H
2O is dissolved in the deionized water fully, will be the 3.83g citric acid adding mentioned solution of 1:1.5 with the metallic cation mol ratio, and the pH value with the ammoniacal liquor regulator solution is 7 again, stirs at 60 ℃ of lower constant temperature and forms wet gels; Wet gel grinds behind the self-propagating combustion at 80 ℃ of lower vacuum-drying 12h, and the powder that grinding is obtained places 950 ℃ of calcinings of tube furnace 3h, and cooling is ground and obtained barium ferrite;
(2) preparation of composite granule in the middle of barium ferrite/carbon nanotube: 4.0g Sodium dodecylbenzene sulfonate (SDBS) is added in the 80mL deionized water, behind the magnetic agitation 30min, add 2.0g caliber 20～30nm multi-walled carbon nano-tubes, reinforcement stirs 30min, add X g(X=0.80～4.0) barium ferrite, suction filtration behind the supersound process 1h, 80 ℃ of vacuum-drying filter cake 12h grind and obtain middle composite granule;
(3) barium ferrite/carbon nano-tube/poly 3 methyl thiophene composite manufacture: take by weighing middle composite granule Y g(Y=0.10～0.30), the 30mL chloroform joins in the there-necked flask, ultra-sonic dispersion 30min, constantly stir the lower 2.0mL of adding 3 methyl thiophene monomer, add the 13.20g FERRIC CHLORIDE ANHYDROUS after stirring 30min, 40 ℃ of lower polymerization 12h, suction filtration, again with dehydrated alcohol, that deionized water is washed till filtrate is colourless, 80 ℃ of vacuum-drying filter cake 12h obtain barium ferrite/carbon nano-tube/poly 3 methyl thiophene matrix material.
2. the preparation method of a kind of barium ferrite/carbon nano-tube/poly 3 methyl thiophene composite wave-suction material according to claim 1, carbon nanotube and barium ferrite mass ratio are 1～5:2 in the described step (2), and composite granule is 0.05～0.15 with 3 methyl thiophene monomer mass ratio in the middle of the step (3).
3. the preparation method of a kind of barium ferrite/carbon nano-tube/poly 3 methyl thiophene composite wave-suction material according to claim 1, described this composite wave-suction material is lower than in 2～18GHz internal reflection rate loss value-and the frequency span of 10dB reaches 9.7～16.8GHz, and minimum reflectance loss value can reach-34～-45dB.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182514A (en) * | 2013-04-11 | 2013-07-03 | 中国石油大学(华东) | Method for preparing neodymium iron boron magnetic powder by self-propagating combustion |
| CN103740233A (en) * | 2014-01-08 | 2014-04-23 | 南京信息工程大学 | Micrometer wave absorbing coating material and preparation method thereof |
| CN105153678A (en) * | 2015-10-13 | 2015-12-16 | 中国人民解放军广州军区武汉总医院 | Preparation of carbon nanotube-conducting high-polymer material/ferrite composite polyurethane |
| CN107418512A (en) * | 2017-06-07 | 2017-12-01 | 常州道博化工有限公司 | A kind of preparation method of ultra-thin paper base wave-absorbing material |
| CN109850950A (en) * | 2018-12-13 | 2019-06-07 | 华南理工大学 | A kind of absorbing material and preparation method thereof compound by barium ferrite and carbon nanotube |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102627834A (en) * | 2012-04-05 | 2012-08-08 | 南昌航空大学 | Preparation method of chitosan modification barium ferrite filling multi-walled carbon nanotube/poly 3-methylthiophene composite wave-absorbing material |
| CN102718408A (en) * | 2012-06-21 | 2012-10-10 | 电子科技大学 | Method for preparing gas-sensitive film |
-
2012
- 2012-11-12 CN CN201210449617.2A patent/CN102964571B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102627834A (en) * | 2012-04-05 | 2012-08-08 | 南昌航空大学 | Preparation method of chitosan modification barium ferrite filling multi-walled carbon nanotube/poly 3-methylthiophene composite wave-absorbing material |
| CN102718408A (en) * | 2012-06-21 | 2012-10-10 | 电子科技大学 | Method for preparing gas-sensitive film |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182514A (en) * | 2013-04-11 | 2013-07-03 | 中国石油大学(华东) | Method for preparing neodymium iron boron magnetic powder by self-propagating combustion |
| CN103182514B (en) * | 2013-04-11 | 2015-04-22 | 中国石油大学(华东) | Method for preparing neodymium iron boron magnetic powder by self-propagating combustion |
| CN103740233A (en) * | 2014-01-08 | 2014-04-23 | 南京信息工程大学 | Micrometer wave absorbing coating material and preparation method thereof |
| CN103740233B (en) * | 2014-01-08 | 2016-04-20 | 南京信息工程大学 | A kind of millimeter wave wave-absorbing coating material and preparation method thereof |
| CN105153678A (en) * | 2015-10-13 | 2015-12-16 | 中国人民解放军广州军区武汉总医院 | Preparation of carbon nanotube-conducting high-polymer material/ferrite composite polyurethane |
| CN107418512A (en) * | 2017-06-07 | 2017-12-01 | 常州道博化工有限公司 | A kind of preparation method of ultra-thin paper base wave-absorbing material |
| CN109850950A (en) * | 2018-12-13 | 2019-06-07 | 华南理工大学 | A kind of absorbing material and preparation method thereof compound by barium ferrite and carbon nanotube |
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