CN104962185A - Graphene-loaded nanometer Fe3O4/aqueous polyurethane composite magnetic conductive wave absorbing coating material and preparation method thereof - Google Patents
Graphene-loaded nanometer Fe3O4/aqueous polyurethane composite magnetic conductive wave absorbing coating material and preparation method thereof Download PDFInfo
- Publication number
- CN104962185A CN104962185A CN201510296728.8A CN201510296728A CN104962185A CN 104962185 A CN104962185 A CN 104962185A CN 201510296728 A CN201510296728 A CN 201510296728A CN 104962185 A CN104962185 A CN 104962185A
- Authority
- CN
- China
- Prior art keywords
- graphene
- magnetic conductive
- composite magnetic
- supported
- aqueous polyurethane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 70
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 37
- 239000011248 coating agent Substances 0.000 title claims abstract description 35
- 238000000576 coating method Methods 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 title claims abstract description 26
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 24
- 239000004814 polyurethane Substances 0.000 title claims abstract description 24
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 title abstract description 13
- 239000011370 conductive nanoparticle Substances 0.000 claims abstract description 42
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 30
- 239000003960 organic solvent Substances 0.000 claims abstract description 29
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims abstract description 22
- 229920000642 polymer Polymers 0.000 claims abstract description 20
- 229920005989 resin Polymers 0.000 claims abstract description 20
- 239000011347 resin Substances 0.000 claims abstract description 20
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 16
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 16
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 16
- 239000010439 graphite Substances 0.000 claims abstract description 16
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims abstract description 10
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000012286 potassium permanganate Substances 0.000 claims abstract description 10
- 235000010344 sodium nitrate Nutrition 0.000 claims abstract description 10
- 239000004317 sodium nitrate Substances 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 239000006185 dispersion Substances 0.000 claims description 20
- 239000013530 defoamer Substances 0.000 claims description 18
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 15
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 15
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 14
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical group CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 13
- 229920005749 polyurethane resin Polymers 0.000 claims description 10
- 229940001516 sodium nitrate Drugs 0.000 claims description 9
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical group [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- MKHVZQXYWACUQC-UHFFFAOYSA-N bis(2-hydroxyethyl)azanium;dodecyl sulfate Chemical compound OCCNCCO.CCCCCCCCCCCCOS(O)(=O)=O MKHVZQXYWACUQC-UHFFFAOYSA-N 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229920002545 silicone oil Polymers 0.000 claims description 7
- -1 siloxanes Chemical class 0.000 claims description 7
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 238000013019 agitation Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000010908 decantation Methods 0.000 claims description 6
- 230000003292 diminished effect Effects 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000000703 high-speed centrifugation Methods 0.000 claims description 6
- 239000005457 ice water Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 229920003009 polyurethane dispersion Polymers 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000003575 carbonaceous material Substances 0.000 abstract description 4
- 239000000945 filler Substances 0.000 abstract description 4
- 239000002518 antifoaming agent Substances 0.000 abstract 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 230000005670 electromagnetic radiation Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000011246 composite particle Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000011527 polyurethane coating Substances 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910021392 nanocarbon Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention relates to a graphene-loaded nanometer Fe3O4/aqueous polyurethane composite magnetic conductive wave absorbing coating material and a preparation method thereof. A polymer composite material utilizing a carbon material as a filler has unique advantages in the field of electromagnetic shielding. Graphene as a two-dimensional nanometer carbon material has excellent electrical, mechanical and thermodynamic properties and has excellent electromagnetic shielding material potential. The graphene-loaded nanometer Fe3O4/aqueous polyurethane composite magnetic conductive wave absorbing coating material is prepared from a high-molecular organic resin, graphene-loaded Fe3O4 composite magnetic conductive nanoparticles, an organic solvent, a dispersant and an antifoaming agent. The graphene-loaded Fe3O4 composite magnetic conductive nanoparticle is prepared from graphite, concentrated sulfuric acid, sodium nitrate, potassium permanganate, ferric trichloride, ferrous sulphate, sodium hydroxide and hydrazine hydrate. The graphene-loaded nanometer Fe3O4/aqueous polyurethane composite magnetic conductive wave absorbing coating material has the characteristics of good conductivity, macro-magnetism and high stability and has a certain electromagnetic shielding function.
Description
Technical field
the present invention relates to a kind of microwave absorbing coating, be specifically related to a kind of graphene-supported nanometer Fe
3o
4/ aqueous polyurethane composite magnetic conductive wave-absorbing coating material and preparation method thereof.
Background technology
Along with developing rapidly of electrified universal and telecommunications industry, electromagnetic energy is widely used in the every field of national economy, for daily life brings great convenience.But numerous hertzian wave causes normal electromagnetism ecotope disorderly, bring serious ecological environment problem, electromagnetic radiation being considered as a kind of new source of pollution in the world, being called electromagnetic radiation pollution, is the fourth-largest pollution after atmospheric pollution, water pollutions, noise pollution.At present, effectively suppress electromagnetic radiation, leakage, interference and improve electromagnetic environment, mainly based on conductivity type electromagnetic shielding.Conventional absorbing material mainly obtains with composite algorithm, there is the advantage of oneself uniqueness in electromagnetic shielding field as the polymer composite of filler using carbon material, Graphene is as a kind of novel two-dimensional nano carbon material, have extremely excellent electricity, mechanics and thermomechanical property, the performance of these excellences makes Graphene after forming matrix material with macromolecular material, have the splendid potential quality as electromagnetic shielding material.
Summary of the invention
The object of this invention is to provide a kind of graphene-supported nanometer Fe
3o
4/ aqueous polyurethane composite magnetic conductive wave-absorbing coating material and preparation method thereof, good conductivity, has macroscopic magnetization, and stability is high.
The technical solution adopted in the present invention is:
Graphene-supported nanometer Fe
3o
4/ aqueous polyurethane composite magnetic conductive wave-absorbing coating material, is characterized in that:
Prepared by the component of following mass parts:
Polymer organic resin 60-75 part;
Graphene-supported Fe
3o
4composite magnetic conductive nanoparticle 1-10 part;
Organic solvent 20-30 part;
Dispersion agent 0.1-0.5 part;
Defoamer 0.1-0.5 part.
Described polymer organic resin is waterborne polyurethane resin.
Described graphene-supported Fe
3o
4composite magnetic conductive nanoparticle is obtained by following component:
Graphite 2-3g;
Massfraction is the vitriol oil 60-120mL of 98%;
SODIUMNITRATE 1-2g;
Potassium permanganate 6-9g;
Iron trichloride 0.38-0.94g;
Ferrous sulfate 0.22-0.56g;
Volumetric molar concentration is the sodium hydroxide solution 5-15mL of 1mol/L;
Hydrazine hydrate 1-3mL;
Water 290-450mL.
Described organic solvent is DMF, acetone or dehydrated alcohol.
Described dispersion agent is palmityl trimethyl ammonium chloride or dodecyl sulphate diethanolamine salt.
Described defoamer is methyl-silicone oil, siloxanes or tributyl phosphate.
Graphene-supported nanometer Fe
3o
4the preparation method of/aqueous polyurethane composite magnetic conductive wave-absorbing coating material, is characterized in that:
Realized by following steps:
1) graphene-supported Fe
3o
4the preparation of composite magnetic conductive nanoparticle organic solution:
(1) preparation of graphene oxide:
Be the vitriol oil of 98% by 2-3g graphite, 60-120mL massfraction, the mixing of 1-2g SODIUMNITRATE is placed in ice-water bath and stirs, add 6-9g potassium permanganate again and continue reaction, at room temperature react again and add the water of 90-150mL, be oxidized thoroughly at 95-100 DEG C and obtain graphite oxide, more ultrasonic stripping high speed centrifugation obtains graphene oxide water solution;
(2) graphene-supported nanometer Fe is prepared
3o
4:
First with 200-300mL water, 40-60mL graphene oxide solution is diluted, with iron trichloride and ferrous sulfate for molysite, add iron trichloride 0.38-0.94g, ferrous sulfate 0.22-0.56g, using the 5-15mL volumetric molar concentration NaOH solution that is 1mol/L as precipitation agent, at 50-60 DEG C, react 30min; And then add 1-3mL hydrazine hydrate, react 3-5h at the temperature of 90 ± 5 DEG C after, take out naturally cooling;
(3) be separated:
After being neutrality with the separation of magnetic decantation, distilled water wash to product mixture, filtration under diminished pressure, obtains graphene-supported Fe
3o
4composite magnetic conductive nanoparticle;
(4) aftertreatment:
1) by the graphene-supported Fe of preparation
3o
4after composite magnetic conductive nanoparticle 1-10 mass parts organic solvent washing, ultrasonic disperse is in the organic solvent of 20-30 mass parts, obtains graphene-supported Fe
3o
4composite magnetic conductive nanoparticle organic solution;
2) at the graphene-supported Fe of gained
3o
4add 60-75 mass parts polymer organic resin, 0.1-0.5 mass parts dispersion agent, 0.1-0.5 mass parts defoamer in composite magnetic conductive nanoparticle organic solution, be mixed together ultrasonic disperse, high shear agitation, film obtains product.
In (4) of step 1), organic solvent is DMF, acetone or dehydrated alcohol;
Step 2) in, polymer organic resin is waterborne polyurethane resin, and dispersion agent is palmityl trimethyl ammonium chloride or dodecyl sulphate diethanolamine salt, and defoamer is methyl-silicone oil, siloxanes or tributyl phosphate.
The present invention has the following advantages:
The present invention is first by graphene-supported Fe
3o
4composite magnetic conductive nanoparticle is applied in waterborne polyurethane resin, and has prepared a kind of magnetic conductive microwave absorbing coating.This coating not only has graphene-supported Fe
3o
4the magnetic of composite magnetic conductive nanoparticle, electroconductibility, microwave absorbing property, also have the advantages such as aqueous polyurethane is nontoxic, free from environmental pollution, high strength, fastness to rubbing.Compared with traditional coated material, the coating that the present invention relates to is a kind of microwave absorbing coating of double dielectric loss and magnetic loss, and this is unique a kind of microwave absorbing coating having two kinds of losses concurrently in current aqueous polyurethane coating.Organic solvent usage quantity in this coating greatly reduces, and has certain feature of environmental protection.And its preparation method is simple, can be applicable to multiple field.
The nanoparticulate fillers adopted-graphene-supported Fe
3o
4composite magnetic conductive nanoparticle, in its preparation process, directly the nanoparticle of compound ultrasonic disperse after organic solvent washing several times, in organic solvent, can be reduced the reunion of composite particles in process of vacuum drying, the dispersiveness of nanoparticle in aqueous polyurethane can be improved.Its actual measurement specific conductivity is suitable with Graphene, and nanoparticle is by Graphene and magnetite (Fe
3o
4) two phase composites, make it have very strong macroscopic magnetization, can by common attraction.Therefore prepared coating not only has magnetic conductive, also has and inhales ripple usefulness.
In addition, through characterization test, composite granule is have special microtexture, Fe at microcosmic
3o
4graphene film Rotating fields, in graphenic surface, wrapped up by particle absorption, and its entirety is still in flakey.Graphene-supported nanometer Fe
3o
4the organic solution of composite particles and macromolecule resin have consistency well, and therefore compound coating of the present invention has good stability and dispersion effect.
Accompanying drawing explanation
Fig. 1 is graphene-supported nanometer Fe
3o
4the XRD figure spectrum of composite magnetic conductive nanoparticle.
Known by atlas analysis, prepared powder has Graphene, Fe
3o
4with a small amount of residual graphene oxide composition be not reduced.
Fig. 2 is graphene-supported nanometer Fe
3o
4the scanning electron microscope of composite magnetic conductive powder stuffing and transmission electron microscope photo.(a is 300nm level, and b is 500nm level)
As can be seen from stereoscan photograph, prepared powder is crystalloid, and crystalline diameter is in tens nanometers, and size ratio is more even.More can illustrate that Z 250 is carried on Graphene from transmission electron microscope photo, instead of only be gathered on the surface of Graphene coacervate.
Fig. 3 is graphene-supported Fe
3o
4the dispersion in organic solvent of magnetic conductive powder and the displaying (a is the phenomenon when not adding magnetic field, and b is the phenomenon under the action of a magnetic field after 25s) of magnetic thereof.
Embodiment
Below in conjunction with embodiment, the present invention will be described in detail.
The graphene-supported nanometer Fe of the one that the present invention relates to
3o
4/ aqueous polyurethane composite magnetic conductive wave-absorbing coating material and preparation method thereof, having prepared one first also holds concurrently electric based on water-base polyurethane material, the microwave absorbing coating of magnetic loss, relative to conventional washcoat material, aqueous polyurethane coating has environmental protection, the advantage such as nontoxic, this preparation method of composite coating is simple, and multiple field can be applied to, and be by vibration in phase and the mutual characteristic propagated of vertical electric field and magnetic field according to hertzian wave self, adopt Graphene as the electrical loss medium of matrix material, and nano-scale magnetic Z 250 is carried on Graphene, guarantee that matrix material in use provides magnetic loss medium and the stability of self, by itself and water polyurethane base volume recombination, thus obtained there is magnetic and conducting function, hold concurrently electric, magnetic loss also has the compound coating of absorptive function to the hertzian wave of certain frequency scope.
The graphene-supported nanometer Fe that the present invention relates to
3o
4/ aqueous polyurethane composite magnetic conductive wave-absorbing coating material, prepared by the component of following mass parts:
Polymer organic resin 60-75 part;
Graphene-supported Fe
3o
4composite magnetic conductive nanoparticle 1-10 part;
Organic solvent 20-30 part;
Dispersion agent 0.1-0.5 part;
Defoamer 0.1-0.5 part.
Wherein:
Described polymer organic resin is waterborne polyurethane resin.
Described graphene-supported Fe
3o
4composite magnetic conductive nanoparticle is obtained by following component:
Graphite 2-3g;
Massfraction is the vitriol oil 60-120mL of 98%;
SODIUMNITRATE 1-2g;
Potassium permanganate 6-9g;
Iron trichloride 0.38-0.94g;
Ferrous sulfate 0.22-0.56g;
Volumetric molar concentration is the sodium hydroxide solution 5-15mL of 1mol/L;
Hydrazine hydrate 1-3mL;
Water 290-450mL.
Described organic solvent is DMF, acetone or dehydrated alcohol.
Described dispersion agent is palmityl trimethyl ammonium chloride or dodecyl sulphate diethanolamine salt.
Described defoamer is methyl-silicone oil, siloxanes or tributyl phosphate.
Above-mentioned graphene-supported nanometer Fe
3o
4the preparation method of/aqueous polyurethane composite magnetic conductive wave-absorbing coating material, is realized by following steps:
1) graphene-supported Fe
3o
4the preparation of composite magnetic conductive nanoparticle organic solution:
(1) preparation of graphene oxide:
Be the vitriol oil of 98% by 2-3g graphite, 60-120mL massfraction, the mixing of 1-2g SODIUMNITRATE is placed in ice-water bath and stirs, add 6-9g potassium permanganate again and continue reaction, at room temperature react again and add the water of 90-150mL, be oxidized thoroughly at 95-100 DEG C and obtain graphite oxide, more ultrasonic stripping high speed centrifugation obtains graphene oxide water solution;
(2) graphene-supported nanometer Fe is prepared
3o
4:
First with 200-300mL water, 40-60mL graphene oxide solution is diluted, with iron trichloride and ferrous sulfate for molysite, add iron trichloride 0.38-0.94g, ferrous sulfate 0.22-0.56g, using the 5-15mL volumetric molar concentration NaOH solution that is 1mol/L as precipitation agent, at 50-60 DEG C, react 30min; And then add 1-3mL hydrazine hydrate, react 3-5h at the temperature of 90 ± 5 DEG C after, take out naturally cooling;
(3) be separated:
After being neutrality with the separation of magnetic decantation, distilled water wash to product mixture, filtration under diminished pressure, obtains graphene-supported Fe
3o
4composite magnetic conductive nanoparticle;
(4) aftertreatment:
1) by the graphene-supported Fe of preparation
3o
4after composite magnetic conductive nanoparticle 1-10 mass parts organic solvent washing, ultrasonic disperse is in the organic solvent of 20-30 mass parts, obtains graphene-supported Fe
3o
4composite magnetic conductive nanoparticle organic solution;
2) at the graphene-supported Fe of gained
3o
4add 60-75 mass parts polymer organic resin, 0.1-0.5 mass parts dispersion agent, 0.1-0.5 mass parts defoamer in composite magnetic conductive nanoparticle organic solution, be mixed together ultrasonic disperse, high shear agitation, film obtains product.
In above-mentioned steps:
In (4) of step 1), organic solvent is DMF, acetone or dehydrated alcohol;
Step 2) in, polymer organic resin is waterborne polyurethane resin, and dispersion agent is palmityl trimethyl ammonium chloride or dodecyl sulphate diethanolamine salt, and defoamer is methyl-silicone oil, siloxanes or tributyl phosphate.
Embodiment 1:
1) graphene-supported Fe
3o
4the preparation of composite magnetic conductive nanoparticle organic solution:
(1) preparation of graphene oxide:
Be the vitriol oil of 98% by 2g graphite, 120mL massfraction, the mixing of 1g SODIUMNITRATE is placed in ice-water bath and stirs, add 9g potassium permanganate again and continue reaction, at room temperature react again and add the water of 90mL, be oxidized thoroughly at 100 DEG C and obtain graphite oxide, more ultrasonic stripping high speed centrifugation obtains graphene oxide water solution;
(2) graphene-supported nanometer Fe is prepared
3o
4:
First with 200mL water, 60mL graphene oxide solution is diluted, with iron trichloride and ferrous sulfate for molysite, add iron trichloride 0.38g, ferrous sulfate 0.56g, using the 5mL volumetric molar concentration NaOH solution that is 1mol/L as precipitation agent, reacts 30min at 60 DEG C; And then add 1mL hydrazine hydrate, react 3h at the temperature of 95 DEG C after, take out naturally cooling;
(3) be separated:
After being neutrality with the separation of magnetic decantation, distilled water wash to product mixture, filtration under diminished pressure, obtains graphene-supported Fe
3o
4composite magnetic conductive nanoparticle;
(4) aftertreatment:
1) by the graphene-supported Fe of preparation
3o
4after composite magnetic conductive nanoparticle 10 mass parts organic solvent washing, ultrasonic disperse is in the organic solvent of 20 mass parts, obtains graphene-supported Fe
3o
4composite magnetic conductive nanoparticle organic solution;
2) at the graphene-supported Fe of gained
3o
4add 75 mass parts polymer organic resins, 0.1 mass parts dispersion agent, 0.5 mass parts defoamer in composite magnetic conductive nanoparticle organic solution, be mixed together ultrasonic disperse, high shear agitation, film obtains product.
In above-mentioned steps:
In (4) of step 1), organic solvent is DMF;
Step 2) in, polymer organic resin is waterborne polyurethane resin, and dispersion agent is palmityl trimethyl ammonium chloride, and defoamer is methyl-silicone oil.
Embodiment 2:
1) graphene-supported Fe
3o
4the preparation of composite magnetic conductive nanoparticle organic solution:
(1) preparation of graphene oxide:
Be the vitriol oil of 98% by 2.5g graphite, 90mL massfraction, the mixing of 1.5g SODIUMNITRATE is placed in ice-water bath and stirs, add 7.5g potassium permanganate again and continue reaction, at room temperature react again and add the water of 120mL, be oxidized thoroughly at 97 DEG C and obtain graphite oxide, more ultrasonic stripping high speed centrifugation obtains graphene oxide water solution;
(2) graphene-supported nanometer Fe is prepared
3o
4:
First with 250mL water, 50mL graphene oxide solution is diluted, with iron trichloride and ferrous sulfate for molysite, add iron trichloride 0.66g, ferrous sulfate 0.39g, using the 10mL volumetric molar concentration NaOH solution that is 1mol/L as precipitation agent, reacts 30min at 55 DEG C; And then add 2mL hydrazine hydrate, react 4h at the temperature of 90 DEG C after, take out naturally cooling;
(3) be separated:
After being neutrality with the separation of magnetic decantation, distilled water wash to product mixture, filtration under diminished pressure, obtains graphene-supported Fe
3o
4composite magnetic conductive nanoparticle;
(4) aftertreatment:
1) by the graphene-supported Fe of preparation
3o
4after composite magnetic conductive nanoparticle 5 mass parts organic solvent washing, ultrasonic disperse is in the organic solvent of 25 mass parts, obtains graphene-supported Fe
3o
4composite magnetic conductive nanoparticle organic solution;
2) at the graphene-supported Fe of gained
3o
4add 70 mass parts polymer organic resins, 0.3 mass parts dispersion agent, 0.3 mass parts defoamer in composite magnetic conductive nanoparticle organic solution, be mixed together ultrasonic disperse, high shear agitation, film obtains product.
In above-mentioned steps:
In (4) of step 1), organic solvent is acetone;
Step 2) in, polymer organic resin is waterborne polyurethane resin, and dispersion agent is palmityl trimethyl ammonium chloride, and defoamer is siloxanes.
Embodiment 3:
1) graphene-supported Fe
3o
4the preparation of composite magnetic conductive nanoparticle organic solution:
(1) preparation of graphene oxide:
Be the vitriol oil of 98% by 3g graphite, 60mL massfraction, the mixing of 2g SODIUMNITRATE is placed in ice-water bath and stirs, add 6g potassium permanganate again and continue reaction, at room temperature react again and add the water of 150mL, be oxidized thoroughly at 95 DEG C and obtain graphite oxide, more ultrasonic stripping high speed centrifugation obtains graphene oxide water solution;
(2) graphene-supported nanometer Fe is prepared
3o
4:
First with 300mL water, 40mL graphene oxide solution is diluted, with iron trichloride and ferrous sulfate for molysite, add iron trichloride 0.94g, ferrous sulfate 0.22g, using the 15mL volumetric molar concentration NaOH solution that is 1mol/L as precipitation agent, reacts 30min at 50 DEG C; And then add 3mL hydrazine hydrate, react 5h at the temperature of 85 DEG C after, take out naturally cooling;
(3) be separated:
After being neutrality with the separation of magnetic decantation, distilled water wash to product mixture, filtration under diminished pressure, obtains graphene-supported Fe
3o
4composite magnetic conductive nanoparticle;
(4) aftertreatment:
1) by the graphene-supported Fe of preparation
3o
4after composite magnetic conductive nanoparticle 1 mass parts organic solvent washing, ultrasonic disperse is in the organic solvent of 30 mass parts, obtains graphene-supported Fe
3o
4composite magnetic conductive nanoparticle organic solution;
2) at the graphene-supported Fe of gained
3o
4add 60 mass parts polymer organic resins, 0.5 mass parts dispersion agent, 0.1 mass parts defoamer in composite magnetic conductive nanoparticle organic solution, be mixed together ultrasonic disperse, high shear agitation, film obtains product.
In above-mentioned steps:
In (4) of step 1), organic solvent is dehydrated alcohol;
Step 2) in, polymer organic resin is waterborne polyurethane resin, and dispersion agent is dodecyl sulphate diethanolamine salt, and defoamer is tributyl phosphate.
Composite coating is coated in polyfluortetraethylene plate surface (coat-thickness 20-40 micron), its body resistivity is measured by standard four probe method, being converted into specific conductivity is 5.65-0.015S/m, be 5.13-0.018S/m by its specific conductivity of coating prepared by Graphene filler under equal conditions, both electric conductivity difference are little.In addition, paint is become the circular membrane of diameter 10cm, dry rear film can be picked up by common magnet, shows the magnetic of some strength.And measured by 8501C model vector network analyzer, this magnetic conductive coating is between 8-12.4GHz frequency, and electromagnetic interference (EMI) effectiveness of shielding reaches 34dB.
Content of the present invention is not limited to cited by embodiment, and the conversion of those of ordinary skill in the art by reading specification sheets of the present invention to any equivalence that technical solution of the present invention is taked, is claim of the present invention and contains.
Claims (8)
1. graphene-supported nanometer Fe
3o
4/ aqueous polyurethane composite magnetic conductive wave-absorbing coating material, is characterized in that:
Prepared by the component of following mass parts:
Polymer organic resin 60-75 part;
Graphene-supported Fe
3o
4composite magnetic conductive nanoparticle 1-10 part;
Organic solvent 20-30 part;
Dispersion agent 0.1-0.5 part;
Defoamer 0.1-0.5 part.
2. graphene-supported nanometer Fe according to claim 1
3o
4/ aqueous polyurethane composite magnetic conductive wave-absorbing coating material, is characterized in that:
Described polymer organic resin is waterborne polyurethane resin.
3. graphene-supported nanometer Fe according to claim 2
3o
4/ aqueous polyurethane composite magnetic conductive wave-absorbing coating material, is characterized in that:
Described graphene-supported Fe
3o
4composite magnetic conductive nanoparticle is obtained by following component:
Graphite 2-3g;
Massfraction is the vitriol oil 60-120mL of 98%;
SODIUMNITRATE 1-2g;
Potassium permanganate 6-9g;
Iron trichloride 0.38-0.94g;
Ferrous sulfate 0.22-0.56g;
Volumetric molar concentration is the sodium hydroxide solution 5-15mL of 1mol/L;
Hydrazine hydrate 1-3mL;
Water 290-450mL.
4. graphene-supported nanometer Fe according to claim 3
3o
4/ aqueous polyurethane composite magnetic conductive wave-absorbing coating material, is characterized in that:
Described organic solvent is DMF, acetone or dehydrated alcohol.
5. graphene-supported nanometer Fe according to claim 4
3o
4/ aqueous polyurethane composite magnetic conductive wave-absorbing coating material, is characterized in that:
Described dispersion agent is palmityl trimethyl ammonium chloride or dodecyl sulphate diethanolamine salt.
6. graphene-supported nanometer Fe according to claim 5
3o
4/ aqueous polyurethane composite magnetic conductive wave-absorbing coating material, is characterized in that:
Described defoamer is methyl-silicone oil, siloxanes or tributyl phosphate.
7. graphene-supported nanometer Fe
3o
4the preparation method of/aqueous polyurethane composite magnetic conductive wave-absorbing coating material, is characterized in that:
Realized by following steps:
1) graphene-supported Fe
3o
4the preparation of composite magnetic conductive nanoparticle organic solution:
(1) preparation of graphene oxide:
Be the vitriol oil of 98% by 2-3g graphite, 60-120mL massfraction, the mixing of 1-2g SODIUMNITRATE is placed in ice-water bath and stirs, add 6-9g potassium permanganate again and continue reaction, at room temperature react again and add the water of 90-150mL, be oxidized thoroughly at 95-100 DEG C and obtain graphite oxide, more ultrasonic stripping high speed centrifugation obtains graphene oxide water solution;
(2) graphene-supported nanometer Fe is prepared
3o
4:
First with 200-300mL water, 40-60mL graphene oxide solution is diluted, with iron trichloride and ferrous sulfate for molysite, add iron trichloride 0.38-0.94g, ferrous sulfate 0.22-0.56g, using the 5-15mL volumetric molar concentration NaOH solution that is 1mol/L as precipitation agent, at 50-60 DEG C, react 30min; And then add 1-3mL hydrazine hydrate, react 3-5h at the temperature of 90 ± 5 DEG C after, take out naturally cooling;
(3) be separated:
After being neutrality with the separation of magnetic decantation, distilled water wash to product mixture, filtration under diminished pressure, obtains graphene-supported Fe
3o
4composite magnetic conductive nanoparticle;
(4) aftertreatment:
1) by the graphene-supported Fe of preparation
3o
4after composite magnetic conductive nanoparticle 1-10 mass parts organic solvent washing, ultrasonic disperse is in the organic solvent of 20-30 mass parts, obtains graphene-supported Fe
3o
4composite magnetic conductive nanoparticle organic solution;
2) at the graphene-supported Fe of gained
3o
4add 60-75 mass parts polymer organic resin, 0.1-0.5 mass parts dispersion agent, 0.1-0.5 mass parts defoamer in composite magnetic conductive nanoparticle organic solution, be mixed together ultrasonic disperse, high shear agitation, film obtains product.
8. graphene-supported nanometer Fe according to claim 7
3o
4the preparation method of/aqueous polyurethane composite magnetic conductive wave-absorbing coating material, is characterized in that:
In (4) of step 1), organic solvent is DMF, acetone or dehydrated alcohol;
Step 2) in, polymer organic resin is waterborne polyurethane resin, and dispersion agent is palmityl trimethyl ammonium chloride or dodecyl sulphate diethanolamine salt, and defoamer is methyl-silicone oil, siloxanes or tributyl phosphate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510296728.8A CN104962185B (en) | 2015-06-03 | 2015-06-03 | Graphene-supported nanometer Fe3O4/ aqueous polyurethane composite magnetic conductive wave-absorbing coating material and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510296728.8A CN104962185B (en) | 2015-06-03 | 2015-06-03 | Graphene-supported nanometer Fe3O4/ aqueous polyurethane composite magnetic conductive wave-absorbing coating material and preparation method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104962185A true CN104962185A (en) | 2015-10-07 |
CN104962185B CN104962185B (en) | 2017-08-11 |
Family
ID=54216288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510296728.8A Expired - Fee Related CN104962185B (en) | 2015-06-03 | 2015-06-03 | Graphene-supported nanometer Fe3O4/ aqueous polyurethane composite magnetic conductive wave-absorbing coating material and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104962185B (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105625049A (en) * | 2016-03-19 | 2016-06-01 | 晋江市众信超纤科技有限公司 | Preparation method for synthetic leather with electromagnetic shielding function and polyurethane foamed slurry of synthetic leather |
CN106189452A (en) * | 2016-07-27 | 2016-12-07 | 合肥旭阳铝颜料有限公司 | A kind of water-fast aluminum pigment with good magnetic |
CN106566401A (en) * | 2016-11-08 | 2017-04-19 | 南京悠谷知识产权服务有限公司 | Graphene-based/montmorillonite-modified polyurethane floor material and preparation method thereof |
CN106634134A (en) * | 2016-09-22 | 2017-05-10 | 西北师范大学 | Preparation of magnetic ferroferric oxide/graphene composite material and application thereof in preparing magnetic paint |
CN106977986A (en) * | 2017-04-28 | 2017-07-25 | 山东欧铂新材料有限公司 | A kind of resin antiradar coatings and preparation method thereof |
CN107189650A (en) * | 2017-05-26 | 2017-09-22 | 范建红 | A kind of conductive corrosion resistant coating and preparation method thereof |
CN107474647A (en) * | 2017-08-10 | 2017-12-15 | 炫杰复合材料(上海)有限公司 | A kind of biological magnetic nano paint and preparation method thereof |
CN107500273A (en) * | 2017-09-25 | 2017-12-22 | 河北工业大学 | A kind of preparation method of graphene/copper composite powders material |
CN108192325A (en) * | 2017-12-22 | 2018-06-22 | 中北大学 | Low reflection height shielding electromagnetic shielding composite material and its preparation with gradient-structure |
CN108795238A (en) * | 2018-06-26 | 2018-11-13 | 常州二维碳素科技股份有限公司 | A kind of pyrographite alkene conductive coating and its application |
CN109608912A (en) * | 2019-01-24 | 2019-04-12 | 成都其其小数科技有限公司 | A method of improving dispersibility of the nanometer ferrite in magnetic ink |
CN109755570A (en) * | 2017-11-06 | 2019-05-14 | 北京碳阳科技有限公司 | Three-dimensional combination electrode material and preparation method thereof, electrode and energy storage device |
WO2019095642A1 (en) * | 2017-11-20 | 2019-05-23 | 曹熙辰 | Anti-corrosion coating composition, method for preparing anti-corrosion coating, and anti-corrosion coating |
CN111749028A (en) * | 2020-07-07 | 2020-10-09 | 苏州康丽达精密电子有限公司 | Multilayer composite graphene electromagnetic shielding material and preparation method thereof |
CN112080943A (en) * | 2020-09-11 | 2020-12-15 | 杨春云 | Functional environment-friendly non-woven fabric and preparation method thereof |
CN112743945A (en) * | 2020-12-30 | 2021-05-04 | 中国科学院长春应用化学研究所 | Multilayered electromagnetic shielding composite material based on bicontinuous structure and preparation method and application thereof |
CN112812660A (en) * | 2021-01-13 | 2021-05-18 | 牛墨石墨烯应用科技有限公司 | Coating with high thermal conductivity and high wave absorption performance and preparation method thereof |
CN112848586A (en) * | 2020-12-30 | 2021-05-28 | 中国科学院长春应用化学研究所 | Multilayer electromagnetic shielding composite material based on isolation structure and preparation method and application thereof |
CN113121982A (en) * | 2021-04-20 | 2021-07-16 | 浙江优可丽新材料有限公司 | Absorption loss type gradient structure composite electromagnetic shielding material and preparation method thereof |
CN113861798A (en) * | 2021-09-28 | 2021-12-31 | 江门市翰尔威新材料有限公司 | Water-based paint with paint film capable of being adsorbed by magnet and preparation method thereof |
CN115500067A (en) * | 2022-09-02 | 2022-12-20 | 苏州申赛新材料有限公司 | Low-reflection magnetic-electric dual-function electromagnetic shielding composite material with gradient structure |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130099153A1 (en) * | 2011-10-23 | 2013-04-25 | Postech Academy-Industry Foundation | Hybrid material comprising graphene and iron oxide, method for manufacturing the same, and apparatus for treating waste water using the same |
CN103173189A (en) * | 2013-03-06 | 2013-06-26 | 西北工业大学 | Method for preparing reduced graphene oxide/ferroferric oxide nano-grade wave-absorbing materials |
CN103274396A (en) * | 2013-06-20 | 2013-09-04 | 电子科技大学 | Preparation method of grapheme and ferriferrous oxide composite nanometer material |
CN103772722A (en) * | 2014-01-07 | 2014-05-07 | 浙江伟星新型建材股份有限公司 | Preparation method of graphene-Fe3O4/waterborne polyurethane nanocomposite with electromagnetic shielding function |
CN103805046A (en) * | 2014-01-26 | 2014-05-21 | 陕西科技大学 | Graphene-containing waterborne polyurethane composite conductive coating prepared in situ and preparation method thereof |
CN104592477A (en) * | 2015-02-16 | 2015-05-06 | 中北大学 | Preparation method of high-performance magnetic polyurethane elastomer composites |
-
2015
- 2015-06-03 CN CN201510296728.8A patent/CN104962185B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130099153A1 (en) * | 2011-10-23 | 2013-04-25 | Postech Academy-Industry Foundation | Hybrid material comprising graphene and iron oxide, method for manufacturing the same, and apparatus for treating waste water using the same |
CN103173189A (en) * | 2013-03-06 | 2013-06-26 | 西北工业大学 | Method for preparing reduced graphene oxide/ferroferric oxide nano-grade wave-absorbing materials |
CN103274396A (en) * | 2013-06-20 | 2013-09-04 | 电子科技大学 | Preparation method of grapheme and ferriferrous oxide composite nanometer material |
CN103772722A (en) * | 2014-01-07 | 2014-05-07 | 浙江伟星新型建材股份有限公司 | Preparation method of graphene-Fe3O4/waterborne polyurethane nanocomposite with electromagnetic shielding function |
CN103805046A (en) * | 2014-01-26 | 2014-05-21 | 陕西科技大学 | Graphene-containing waterborne polyurethane composite conductive coating prepared in situ and preparation method thereof |
CN104592477A (en) * | 2015-02-16 | 2015-05-06 | 中北大学 | Preparation method of high-performance magnetic polyurethane elastomer composites |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105625049A (en) * | 2016-03-19 | 2016-06-01 | 晋江市众信超纤科技有限公司 | Preparation method for synthetic leather with electromagnetic shielding function and polyurethane foamed slurry of synthetic leather |
CN106189452A (en) * | 2016-07-27 | 2016-12-07 | 合肥旭阳铝颜料有限公司 | A kind of water-fast aluminum pigment with good magnetic |
CN106634134A (en) * | 2016-09-22 | 2017-05-10 | 西北师范大学 | Preparation of magnetic ferroferric oxide/graphene composite material and application thereof in preparing magnetic paint |
CN106634134B (en) * | 2016-09-22 | 2019-07-30 | 西北师范大学 | The preparation of magnetic ferroferric oxide/graphene composite material and its application in the magnetic paint of preparation |
CN106566401A (en) * | 2016-11-08 | 2017-04-19 | 南京悠谷知识产权服务有限公司 | Graphene-based/montmorillonite-modified polyurethane floor material and preparation method thereof |
CN106977986A (en) * | 2017-04-28 | 2017-07-25 | 山东欧铂新材料有限公司 | A kind of resin antiradar coatings and preparation method thereof |
CN107189650A (en) * | 2017-05-26 | 2017-09-22 | 范建红 | A kind of conductive corrosion resistant coating and preparation method thereof |
CN107474647B (en) * | 2017-08-10 | 2019-07-26 | 炫杰复合材料(上海)有限公司 | A kind of biology magnetic nano paint and preparation method thereof |
CN107474647A (en) * | 2017-08-10 | 2017-12-15 | 炫杰复合材料(上海)有限公司 | A kind of biological magnetic nano paint and preparation method thereof |
CN107500273A (en) * | 2017-09-25 | 2017-12-22 | 河北工业大学 | A kind of preparation method of graphene/copper composite powders material |
CN107500273B (en) * | 2017-09-25 | 2020-05-26 | 河北工业大学 | Preparation method of graphene/copper composite powder material |
CN109755570A (en) * | 2017-11-06 | 2019-05-14 | 北京碳阳科技有限公司 | Three-dimensional combination electrode material and preparation method thereof, electrode and energy storage device |
WO2019095642A1 (en) * | 2017-11-20 | 2019-05-23 | 曹熙辰 | Anti-corrosion coating composition, method for preparing anti-corrosion coating, and anti-corrosion coating |
CN108192325B (en) * | 2017-12-22 | 2020-12-25 | 中北大学 | Low-reflection high-shielding electromagnetic shielding composite material with gradient structure and preparation thereof |
CN108192325A (en) * | 2017-12-22 | 2018-06-22 | 中北大学 | Low reflection height shielding electromagnetic shielding composite material and its preparation with gradient-structure |
CN108795238A (en) * | 2018-06-26 | 2018-11-13 | 常州二维碳素科技股份有限公司 | A kind of pyrographite alkene conductive coating and its application |
CN109608912A (en) * | 2019-01-24 | 2019-04-12 | 成都其其小数科技有限公司 | A method of improving dispersibility of the nanometer ferrite in magnetic ink |
CN111749028A (en) * | 2020-07-07 | 2020-10-09 | 苏州康丽达精密电子有限公司 | Multilayer composite graphene electromagnetic shielding material and preparation method thereof |
CN112080943A (en) * | 2020-09-11 | 2020-12-15 | 杨春云 | Functional environment-friendly non-woven fabric and preparation method thereof |
CN112743945B (en) * | 2020-12-30 | 2022-05-06 | 中国科学院长春应用化学研究所 | Multilayered electromagnetic shielding composite material based on bicontinuous structure and preparation method and application thereof |
CN112743945A (en) * | 2020-12-30 | 2021-05-04 | 中国科学院长春应用化学研究所 | Multilayered electromagnetic shielding composite material based on bicontinuous structure and preparation method and application thereof |
CN112848586A (en) * | 2020-12-30 | 2021-05-28 | 中国科学院长春应用化学研究所 | Multilayer electromagnetic shielding composite material based on isolation structure and preparation method and application thereof |
CN112848586B (en) * | 2020-12-30 | 2022-06-07 | 中国科学院长春应用化学研究所 | Multilayer electromagnetic shielding composite material based on isolation structure and preparation method and application thereof |
CN112812660A (en) * | 2021-01-13 | 2021-05-18 | 牛墨石墨烯应用科技有限公司 | Coating with high thermal conductivity and high wave absorption performance and preparation method thereof |
CN113121982A (en) * | 2021-04-20 | 2021-07-16 | 浙江优可丽新材料有限公司 | Absorption loss type gradient structure composite electromagnetic shielding material and preparation method thereof |
CN113861798A (en) * | 2021-09-28 | 2021-12-31 | 江门市翰尔威新材料有限公司 | Water-based paint with paint film capable of being adsorbed by magnet and preparation method thereof |
CN115500067A (en) * | 2022-09-02 | 2022-12-20 | 苏州申赛新材料有限公司 | Low-reflection magnetic-electric dual-function electromagnetic shielding composite material with gradient structure |
CN115500067B (en) * | 2022-09-02 | 2023-08-29 | 苏州申赛新材料有限公司 | Electromagnetic shielding composite material with low-reflection magneto-electric dual-functional gradient structure |
Also Published As
Publication number | Publication date |
---|---|
CN104962185B (en) | 2017-08-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104962185A (en) | Graphene-loaded nanometer Fe3O4/aqueous polyurethane composite magnetic conductive wave absorbing coating material and preparation method thereof | |
CN105111913B (en) | Graphene/nanometer ferrite base aqueous electromagnetic shielding coating and preparation method thereof | |
Zheng et al. | Fabrication of porous graphene-Fe3O4 hybrid composites with outstanding microwave absorption performance | |
CN106398206B (en) | The preparation method of graphene oxide/polyaniline/titanium dioxide nanocomposite and polyaniline nano anticorrosive paint | |
Liu et al. | Magnetic graphene@ PANI@ porous TiO 2 ternary composites for high-performance electromagnetic wave absorption | |
CN110734659B (en) | Ternary composite filler of glass fiber powder/polypyrrole/Ti 3C2TxMXene, preparation method and application | |
Liu et al. | Fabrication and microwave absorption of reduced graphene oxide/Ni0. 4Zn0. 4Co0. 2Fe2O4 nanocomposites | |
CN102618107B (en) | Conductive graphite cream and preparation method thereof | |
Liu et al. | Controllable synthesis and enhanced microwave absorption properties of silane-modified Ni 0.4 Zn 0.4 Co 0.2 Fe 2 O 4 nanocomposites covered with reduced graphene oxide | |
CN103554908B (en) | A kind of graphene/polyaniline/cobalt composite wave-suction material and preparation method | |
Movassagh-Alanagh et al. | Improvement in magnetic and microwave absorption properties of nano-Fe3O4@ CFs composites using a modified multi-step EPD process | |
CN108976820A (en) | A kind of Ferroferric oxide/polypyrrole composite material and preparation method thereof | |
Liu et al. | Uniform core–shell PPy@ carbon microsphere composites with a tunable shell thickness: the synthesis and their excellent microwave absorption performances in the X-band | |
CN104448305A (en) | Nano-composite wave-absorbing material and preparation method thereof | |
Pham et al. | Incorporation of Fe3O4/CNTs nanocomposite in an epoxy coating for corrosion protection of carbon steel | |
Sun et al. | In-situ growth strategy to fabrication of MWCNTs/Fe3O4 with controllable interface polarization intensity and wide band electromagnetic absorption performance | |
CN106519779A (en) | Graphene-supported nano zinc and epoxy zinc-rich primer containing graphene-supported nano zinc | |
CN113308139B (en) | Two-dimensional nano hybrid composite anticorrosive coating filler and preparation method and application thereof | |
Salimkhani et al. | Study on the magnetic and microwave properties of electrophoretically deposited nano-Fe3O4 on carbon fiber | |
CN111925630A (en) | High-strength electromagnetic shielding and heat conducting PBT/PET nano composite material and preparation method thereof | |
Ma et al. | Synthesis of reduced graphene oxide/zinc ferrite/nickel nanohybrids: as a lightweight and high-performance microwave absorber in the low frequency | |
CN104826594A (en) | Preparation of high-reducibility magnetic graphene and application of magnetic graphene in adsorption of Cr(VI) | |
CN105957638A (en) | Conductive nanometer silica preparation method | |
CN105625049A (en) | Preparation method for synthetic leather with electromagnetic shielding function and polyurethane foamed slurry of synthetic leather | |
Huang et al. | SiO2-modified Y2Co8Fe9 multifunctional alloys with efficient microwave absorption, oxidation resistance and corrosion resistance |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 |
|
CF01 | Termination of patent right due to non-payment of annual fee |