CN111748233A - Low-reflectivity wave-absorbing material and preparation method thereof - Google Patents
Low-reflectivity wave-absorbing material and preparation method thereof Download PDFInfo
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- CN111748233A CN111748233A CN202010702675.6A CN202010702675A CN111748233A CN 111748233 A CN111748233 A CN 111748233A CN 202010702675 A CN202010702675 A CN 202010702675A CN 111748233 A CN111748233 A CN 111748233A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/32—Radiation-absorbing paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
- C09D161/04—Condensation polymers of aldehydes or ketones with phenols only
- C09D161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
- C09D161/14—Modified phenol-aldehyde condensates
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
- C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C09D179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
Abstract
The invention belongs to the technical field of wave-absorbing materials, and particularly relates to a low-reflectivity wave-absorbing material and a preparation method thereof, wherein carbonyl iron is added into a bluing oxidant aqueous solution, stirred for reaction, and dried for later use; adding 3-aminopropyltriethoxysilane into absolute ethanol, simultaneously adding carbonyl iron oxide powder into deionized water, performing ultrasonic oscillation to obtain carbonyl iron suspension, adding the carbonyl iron suspension into an ethanol solution of 3-aminopropyltriethoxysilane, and drying for later use after the reaction is finished; adding the adhesive into absolute ethyl alcohol, fully stirring until the mixture is transparent, and adding the silicon dioxide coated carbonyl oxide iron powder and the coupling agent into an ethanol solution of the adhesive; the absorbent glue solution is placed in an oven to dry water, then the block is taken out and ground into powder, and the powder is placed in a hot-pressing die to prepare the low-reflectivity wave-absorbing material.
Description
Technical Field
The invention belongs to the technical field of wave-absorbing materials, and particularly relates to a low-reflectivity wave-absorbing material and a preparation method thereof.
Background
With the development of stealth technology and the stealth requirement of high-temperature components of weaponry, the traditional 'thin, wide, light and strong' can not completely meet the requirements of new-generation aerial weaponry on radar wave absorbing materials, and the development of the wave absorbing materials with good wave absorbing performance and high temperature resistance is more and more highly regarded by countries in the world. The wave-absorbing coating has strong adaptability to the appearance of a target, is simple to construct, is particularly suitable for the existing weapons, has small change to the equipment, has small influence on the maneuvering performance and the fire performance of weapon systems, and the like, so that the wave-absorbing coating is widely researched, the research on the wave-absorbing coating at present mainly focuses on the field of normal-temperature wave-absorbing coatings, and the research reports on high-temperature wave-absorbing coatings are few. Carbonyl iron powder is one of the most commonly used radar wave absorbers at present as a typical magnetic loss type absorber, and the Curie temperature of the carbonyl iron powder is as high as 770 ℃.
How to enhance the wave absorbing performance and the stability of carbonyl iron powder under high temperature condition becomes a problem to be solved urgently in the industry.
Disclosure of Invention
The invention aims to provide a low-reflectivity wave-absorbing material and a preparation method thereof, overcomes the defects of the prior art, has simple and efficient process, good repeatability and obvious radar wave absorption effect, and shows wide application prospect in the field of radar wave stealth and the field of electromagnetic shielding.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a low-reflectivity wave-absorbing material and its preparation method, including the following steps,
step one, weighing a proper amount of carbonyl iron, slowly adding the carbonyl iron into a bluing oxidant aqueous solution under the oil bath heating condition, stirring and reacting for a certain time, pouring out supernatant liquid, repeatedly cleaning with distilled water, and drying for later use to prepare carbonyl iron oxide powder;
step two, weighing a proper amount of 3-aminopropyltriethoxysilane, adding the 3-aminopropyltriethoxysilane into absolute ethyl alcohol, simultaneously adding the dried carbonyl iron oxide powder in the step one into deionized water, carrying out ultrasonic oscillation to obtain carbonyl iron suspension, adding the carbonyl iron suspension into an ethanol solution of the 3-aminopropyltriethoxysilane, reacting under the condition of stirring and constant-temperature water bath, repeatedly cleaning by using the absolute ethyl alcohol and distilled water after the reaction is finished, and drying for later use to obtain silicon dioxide coated carbonyl iron oxide powder;
step three, weighing a proper amount of adhesive and coupling agent, adding the adhesive into absolute ethyl alcohol, fully stirring until the adhesive is transparent, adding the silicon dioxide coated carbonyl oxide iron powder obtained in the step two and the coupling agent into an ethanol solution of the adhesive, fully mechanically stirring and ultrasonically treating to obtain an absorbent glue solution;
and step four, placing the absorbent glue solution prepared in the step three into an oven at 240 ℃ to dry water, taking the block out, grinding the block into powder in a ball mill, and placing the powder into a hot-pressing die to prepare the low-reflectivity wave-absorbing material.
Further, in the first step, the bluing oxidant is prepared from sodium hydroxide, sodium nitrite and sodium nitrate according to the mass ratio of 1:1:1, the mass ratio of the carbonyl iron to the bluing oxidant is (1-1.5):1, and the carbonyl iron is oxidized in the bluing oxidant for 60 min.
Further, the mass ratio of the volume of the 3-aminopropyltriethoxysilane to the silicon dioxide coated carbonyl iron oxide powder in the second step is (2-3) ml: 1g of the total weight of the composition.
Further, the adhesive in the third step is one of organic silicon resin, polyimide resin and boron phenolic resin, and the addition amount of the adhesive is 2-8% of the weight of the silicon dioxide coated carbonyl oxide iron powder.
Further, in the third step, the coupling agent is titanate, and the addition amount of the coupling agent is 0.1-2% of the weight of the silicon dioxide coated carbonyl iron oxide powder.
A low-reflectivity wave-absorbing material is prepared by a method for preparing a raw material and a hydrophobic material.
Compared with the prior art, the invention has the following beneficial effects:
the invention improves the wave absorbing performance and the thermal stability of the hydroxyl iron by oxidizing and modifying the carbonyl iron, and has good overall performance, low surface density and wide absorption frequency band. The process is simple and efficient, has good repeatability and obvious radar wave absorption effect, and shows wide application prospects in the radar wave stealth field and the electromagnetic shielding field.
Drawings
Fig. 1 is an SEM image of the low-reflectivity wave-absorbing material provided in example 1.
Fig. 2 is a schematic diagram of electromagnetic parameters of the low-reflectivity wave-absorbing material provided in example 1 and the wave-absorbing material provided in comparative example 1 (a is a real dielectric constant part, b is a real dielectric constant part, c is a real permeability part, and d is an imaginary permeability part).
Fig. 3 is a line graph of reflectivity values of the low-reflectivity wave-absorbing material provided in example 1 and the wave-absorbing material provided in comparative example 1 before and after high-temperature treatment at 250 ℃.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A low-reflectivity wave-absorbing material and its preparation method, including the following steps,
step one, weighing carbonyl iron, slowly adding the carbonyl iron into a bluing oxidant aqueous solution under the oil bath heating condition at 140 ℃, wherein the bluing oxidant is prepared from sodium hydroxide, sodium nitrite and sodium nitrate according to the mass ratio of 1:1:1, the mass ratio of the carbonyl iron to the bluing oxidant is 1:1, stirring is carried out by a mechanical stirrer in the reaction process at the speed of 320r/min, after 60min of reaction, supernatant liquid is poured out, repeatedly cleaned by distilled water, and dried in a vacuum drying oven at 80 ℃ for later use to prepare carbonyl iron oxide powder;
step two, weighing 3-aminopropyltriethoxysilane, adding the 3-aminopropyltriethoxysilane into absolute ethanol, adding the carbonyl iron oxide powder dried in the step one into deionized water, performing ultrasonic oscillation for 30min to obtain carbonyl iron suspension, adding the carbonyl iron suspension into an ethanol solution of the 3-aminopropyltriethoxysilane, wherein the mass ratio of the volume of the 3-aminopropyltriethoxysilane to the silicon dioxide coated carbonyl iron oxide powder is 2 ml: 1g, reacting for 5 hours under the conditions of stirring and constant-temperature water bath at 40 ℃, wherein the rotating speed of mechanical stirring is 300r/min, repeatedly cleaning the reaction product by using absolute ethyl alcohol and distilled water after the reaction is finished, and drying the reaction product in a vacuum drying oven at 60 ℃ for later use to prepare silicon dioxide coated carbonyl oxide iron powder;
step three, weighing an adhesive and a coupling agent, adding the adhesive into absolute ethyl alcohol, fully stirring until the adhesive is transparent, adding the silicon dioxide coated carbonyl oxide iron powder obtained in the step two and the coupling agent into an ethanol solution of the adhesive, fully mechanically stirring and ultrasonically treating to obtain an absorbent glue solution,
wherein the adhesive is one of organic silicon resin, polyimide resin and boron phenolic resin, and the addition amount of the adhesive is 2 percent of the weight of the silicon dioxide coated carbonyl oxide iron powder; the coupling agent is titanate, and the addition amount of the coupling agent is 0.1 percent of the weight of the silicon dioxide coated carbonyl iron oxide powder;
and step four, placing the absorbent glue solution prepared in the step three into an oven at 240 ℃ to dry water, taking the block out, grinding the block into powder in a ball mill, and placing the powder into a hot-pressing die to prepare the low-reflectivity wave-absorbing material.
Example 2
A low-reflectivity wave-absorbing material and its preparation method, including the following steps,
step one, weighing carbonyl iron, slowly adding the carbonyl iron into a bluing oxidant aqueous solution under the oil bath heating condition at 140 ℃, wherein the bluing oxidant is prepared from sodium hydroxide, sodium nitrite and sodium nitrate according to the mass ratio of 1:1:1, the mass ratio of the carbonyl iron to the bluing oxidant is 1.25:1, stirring is carried out by a mechanical stirrer during the reaction process at the speed of 320r/min, after the reaction is carried out for 60min, pouring out supernatant liquid, repeatedly cleaning by distilled water, and drying in a vacuum drying oven at 80 ℃ for later use to prepare carbonyl iron oxide powder;
step two, weighing 3-aminopropyltriethoxysilane, adding the 3-aminopropyltriethoxysilane into absolute ethanol, adding the carbonyl iron oxide powder dried in the step one into deionized water, performing ultrasonic oscillation for 30min to obtain carbonyl iron suspension, adding the carbonyl iron suspension into an ethanol solution of the 3-aminopropyltriethoxysilane, wherein the mass ratio of the volume of the 3-aminopropyltriethoxysilane to the silicon dioxide coated carbonyl iron oxide powder is 2.5 ml: 1g, reacting for 5 hours under the conditions of stirring and constant-temperature water bath at 40 ℃, wherein the rotating speed of mechanical stirring is 300r/min, repeatedly cleaning the reaction product by using absolute ethyl alcohol and distilled water after the reaction is finished, and drying the reaction product in a vacuum drying oven at 60 ℃ for later use to prepare silicon dioxide coated carbonyl oxide iron powder;
step three, weighing an adhesive and a coupling agent, adding the adhesive into absolute ethyl alcohol, fully stirring until the adhesive is transparent, adding the silicon dioxide coated carbonyl oxide iron powder obtained in the step two and the coupling agent into an ethanol solution of the adhesive, fully mechanically stirring and ultrasonically treating to obtain an absorbent glue solution,
wherein the adhesive is one of organic silicon resin, polyimide resin and boron phenolic resin, and the addition amount of the adhesive is 5 percent of the weight of the silicon dioxide coated carbonyl oxide iron powder; the coupling agent is titanate, and the addition amount of the coupling agent is 0.6 percent of the weight of the silicon dioxide coated carbonyl iron oxide powder;
and step four, placing the absorbent glue solution prepared in the step three into an oven at 240 ℃ to dry water, taking the block out, grinding the block into powder in a ball mill, and placing the powder into a hot-pressing die to prepare the low-reflectivity wave-absorbing material.
Example 3
A low-reflectivity wave-absorbing material and its preparation method, including the following steps,
step one, weighing carbonyl iron, slowly adding the carbonyl iron into a bluing oxidant aqueous solution under the oil bath heating condition at 140 ℃, wherein the bluing oxidant is prepared from sodium hydroxide, sodium nitrite and sodium nitrate according to the mass ratio of 1:1:1, the mass ratio of the carbonyl iron to the bluing oxidant is 1.5:1, stirring is carried out by a mechanical stirrer during the reaction process at the speed of 320r/min, after the reaction is carried out for 60min, pouring out supernatant liquid, repeatedly cleaning by distilled water, and drying in a vacuum drying oven at 80 ℃ for later use to prepare carbonyl iron oxide powder;
step two, weighing 3-aminopropyltriethoxysilane, adding the 3-aminopropyltriethoxysilane into absolute ethanol, adding the carbonyl iron oxide powder dried in the step one into deionized water, performing ultrasonic oscillation for 30min to obtain carbonyl iron suspension, adding the carbonyl iron suspension into an ethanol solution of the 3-aminopropyltriethoxysilane, wherein the mass ratio of the volume of the 3-aminopropyltriethoxysilane to the silicon dioxide coated carbonyl iron oxide powder is 3 ml: 1g, reacting for 5 hours under the conditions of stirring and constant-temperature water bath at 40 ℃, wherein the rotating speed of mechanical stirring is 300r/min, repeatedly cleaning the reaction product by using absolute ethyl alcohol and distilled water after the reaction is finished, and drying the reaction product in a vacuum drying oven at 60 ℃ for later use to prepare silicon dioxide coated carbonyl oxide iron powder;
step three, weighing an adhesive and a coupling agent, adding the adhesive into absolute ethyl alcohol, fully stirring until the adhesive is transparent, adding the silicon dioxide coated carbonyl oxide iron powder obtained in the step two and the coupling agent into an ethanol solution of the adhesive, fully mechanically stirring and ultrasonically treating to obtain an absorbent glue solution,
wherein the adhesive is one of organic silicon resin, polyimide resin and boron phenolic resin, and the addition amount of the adhesive is 8 percent of the weight of the silicon dioxide coated carbonyl oxide iron powder; the coupling agent is titanate, and the addition amount of the coupling agent is 2 percent of the weight of the silicon dioxide coated carbonyl iron oxide powder;
and step four, placing the absorbent glue solution prepared in the step three into an oven at 240 ℃ to dry water, taking the block out, grinding the block into powder in a ball mill, and placing the powder into a hot-pressing die to prepare the low-reflectivity wave-absorbing material.
Comparative example 1
The materials and preparation process were essentially the same as in example 1, except that the carbonyl iron was not oxidized and coated with silica.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A preparation method of a low-reflectivity wave-absorbing material is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
step one, weighing a proper amount of carbonyl iron, slowly adding the carbonyl iron into a bluing oxidant aqueous solution under the oil bath heating condition, stirring and reacting for a certain time, pouring out supernatant liquid, repeatedly cleaning with distilled water, and drying for later use to prepare carbonyl iron oxide powder;
step two, weighing a proper amount of 3-aminopropyltriethoxysilane, adding the 3-aminopropyltriethoxysilane into absolute ethyl alcohol, simultaneously adding the dried carbonyl iron oxide powder in the step one into deionized water, carrying out ultrasonic oscillation to obtain carbonyl iron suspension, adding the carbonyl iron suspension into an ethanol solution of the 3-aminopropyltriethoxysilane, reacting under the condition of stirring and constant-temperature water bath, repeatedly cleaning by using the absolute ethyl alcohol and distilled water after the reaction is finished, and drying for later use to obtain silicon dioxide coated carbonyl iron oxide powder;
step three, weighing a proper amount of adhesive and coupling agent, adding the adhesive into absolute ethyl alcohol, fully stirring until the adhesive is transparent, adding the silicon dioxide coated carbonyl oxide iron powder obtained in the step two and the coupling agent into an ethanol solution of the adhesive, fully mechanically stirring and ultrasonically treating to obtain an absorbent glue solution;
and step four, placing the absorbent glue solution prepared in the step three into an oven at 240 ℃ to dry water, taking the block out, grinding the block into powder in a ball mill, and placing the powder into a hot-pressing die to prepare the low-reflectivity wave-absorbing material.
2. The method for preparing the low-reflectivity wave-absorbing material of claim 1, wherein the method comprises the following steps: in the first step, the bluing oxidant is prepared from sodium hydroxide, sodium nitrite and sodium nitrate according to the mass ratio of 1:1:1, the mass ratio of the carbonyl iron to the bluing oxidant is (1-1.5):1, and the carbonyl iron is oxidized in the bluing oxidant for 60 min.
3. The method for preparing the low-reflectivity wave-absorbing material of claim 1, wherein the method comprises the following steps: the mass ratio of the volume of the 3-aminopropyltriethoxysilane to the silicon dioxide coated carbonyl oxide iron powder in the second step is (2-3) ml: 1g of the total weight of the composition.
4. The method for preparing the low-reflectivity wave-absorbing material of claim 1, wherein the method comprises the following steps: and in the third step, the adhesive is one of organic silicon resin, polyimide resin and boron phenolic resin, and the addition amount of the adhesive is 2-8% of the weight of the silicon dioxide coated carbonyl oxide iron powder.
5. The method for preparing the low-reflectivity wave-absorbing material of claim 1, wherein the method comprises the following steps: in the third step, the coupling agent is titanate, and the addition amount of the coupling agent is 0.1-2% of the weight of the silicon dioxide coated carbonyl oxide iron powder.
6. A low-reflectivity wave-absorbing material is characterized in that: is prepared by the preparation method of any one of claims 1 to 6.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112533466A (en) * | 2020-12-02 | 2021-03-19 | 中国人民解放***箭军工程大学 | MOFs derived porous carbon coated sheet carbonyl iron composite wave-absorbing material and preparation method thereof |
| CN112536435A (en) * | 2020-11-17 | 2021-03-23 | 中国航发北京航空材料研究院 | Method for coating high-hydrophobic layer on surfaces of carbonyl iron powder particles |
| CN112689452A (en) * | 2020-12-02 | 2021-04-20 | 中国人民解放***箭军工程大学 | Co/C/carbonyl iron fiber composite wave-absorbing material derived from metal organic framework and preparation method thereof |
| CN114957995A (en) * | 2022-05-17 | 2022-08-30 | 北京科技大学广州新材料研究院 | Corrosion-resistant wave-absorbing heat-conducting silicone rubber composite gasket and preparation method thereof |
| CN115011125A (en) * | 2022-06-27 | 2022-09-06 | 北京科技大学广州新材料研究院 | High-thermal-conductivity antioxidant wave-absorbing silicone rubber composite material and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6486822B1 (en) * | 2000-06-07 | 2002-11-26 | The Boeing Company | Chemically modified radar absorbing materials and an associated fabrication method |
| US20080053695A1 (en) * | 2006-09-05 | 2008-03-06 | Jae-Chul Choi | Electromagnetic wave absorber and method of constructing the same |
| RU2384594C1 (en) * | 2008-08-12 | 2010-03-20 | Открытое акционерное общество "Научно-исследовательский институт приборостроения имени В.В. Тихомирова" | Polymer composition for absorbing high-frequency energy |
| CN109957275A (en) * | 2019-03-08 | 2019-07-02 | 武汉理工大学 | The method and antiradar coatings of pieces of absorbent agent spontaneous orientation under the conditions of high packing ratio |
| CN110982421A (en) * | 2019-11-08 | 2020-04-10 | 航天科工武汉磁电有限责任公司 | High-temperature-resistant wave-absorbing coating and preparation method thereof |
| CN111234588A (en) * | 2020-01-14 | 2020-06-05 | 上杭汉晶新材料科技有限公司 | Wave-absorbing coating and preparation method thereof |
-
2020
- 2020-07-21 CN CN202010702675.6A patent/CN111748233A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6486822B1 (en) * | 2000-06-07 | 2002-11-26 | The Boeing Company | Chemically modified radar absorbing materials and an associated fabrication method |
| US20080053695A1 (en) * | 2006-09-05 | 2008-03-06 | Jae-Chul Choi | Electromagnetic wave absorber and method of constructing the same |
| RU2384594C1 (en) * | 2008-08-12 | 2010-03-20 | Открытое акционерное общество "Научно-исследовательский институт приборостроения имени В.В. Тихомирова" | Polymer composition for absorbing high-frequency energy |
| CN109957275A (en) * | 2019-03-08 | 2019-07-02 | 武汉理工大学 | The method and antiradar coatings of pieces of absorbent agent spontaneous orientation under the conditions of high packing ratio |
| CN110982421A (en) * | 2019-11-08 | 2020-04-10 | 航天科工武汉磁电有限责任公司 | High-temperature-resistant wave-absorbing coating and preparation method thereof |
| CN111234588A (en) * | 2020-01-14 | 2020-06-05 | 上杭汉晶新材料科技有限公司 | Wave-absorbing coating and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 任朝闻: "羰基铁粉的抗氧化处理及其吸波性能", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 周影影: "耐温树脂基吸波材料的制备及性能研究", 《中国博士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112536435A (en) * | 2020-11-17 | 2021-03-23 | 中国航发北京航空材料研究院 | Method for coating high-hydrophobic layer on surfaces of carbonyl iron powder particles |
| CN112533466A (en) * | 2020-12-02 | 2021-03-19 | 中国人民解放***箭军工程大学 | MOFs derived porous carbon coated sheet carbonyl iron composite wave-absorbing material and preparation method thereof |
| CN112689452A (en) * | 2020-12-02 | 2021-04-20 | 中国人民解放***箭军工程大学 | Co/C/carbonyl iron fiber composite wave-absorbing material derived from metal organic framework and preparation method thereof |
| CN114957995A (en) * | 2022-05-17 | 2022-08-30 | 北京科技大学广州新材料研究院 | Corrosion-resistant wave-absorbing heat-conducting silicone rubber composite gasket and preparation method thereof |
| CN114957995B (en) * | 2022-05-17 | 2024-01-02 | 北京科技大学广州新材料研究院 | Corrosion-resistant wave-absorbing heat-conducting silicon rubber composite gasket and preparation method thereof |
| CN115011125A (en) * | 2022-06-27 | 2022-09-06 | 北京科技大学广州新材料研究院 | High-thermal-conductivity antioxidant wave-absorbing silicone rubber composite material and preparation method thereof |
| CN115011125B (en) * | 2022-06-27 | 2023-09-05 | 北京科技大学广州新材料研究院 | High-heat-conductivity antioxidant wave-absorbing silicon rubber composite material and preparation method thereof |
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