CN109536133B - Graphene-based infrared stealth composite material and preparation method thereof - Google Patents
Graphene-based infrared stealth composite material and preparation method thereof Download PDFInfo
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- CN109536133B CN109536133B CN201811579088.1A CN201811579088A CN109536133B CN 109536133 B CN109536133 B CN 109536133B CN 201811579088 A CN201811579088 A CN 201811579088A CN 109536133 B CN109536133 B CN 109536133B
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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Abstract
The invention provides a graphene-based infrared stealth composite material and a preparation method thereof, which solve the problems of poor wave absorption capacity and heavy mass of stealth materials in the prior art, and the preparation method of the graphene-based infrared stealth composite material comprises the following steps: (1) firstly, dispersing graphene powder, a wave absorbing agent and an additive into absolute ethyl alcohol by using an ultrasonic two-dimensional material stripper to obtain a mixed dispersion liquid; (2) dispersing phenolic resin and epoxy resin into water by using an ultrasonic two-dimensional material stripper to obtain phenolic resin/epoxy resin dispersion liquid; (3) the graphene-based infrared stealth composite material is uniformly dispersed in the stealth material, so that the quality of the stealth material is reduced, and the wave-absorbing capacity of the stealth material is improved.
Description
Technical Field
The invention relates to the technical field of stealth materials, in particular to a graphene-based infrared stealth composite material and a preparation method thereof.
Background
With the continuous development of science and technology, a plurality of means for detecting targets randomly appear, stealth technology is derived for avoiding detection equipment from being found and even destroyed, and the stealth technology is a very effective means for improving the survival capability and the defense capability. The most important part of the stealth technology is the stealth material. Currently, research and development of stealth materials is becoming a central focus in the military field.
The infrared stealth technology is a technology which reduces the infrared radiation intensity of a measured substance to make the intensity lower than the test range of an infrared detector, or changes the infrared frequency value to avoid the infrared detector, so that the measured substance is not detected. The infrared stealth technology plays a very important role in the military field, and the infrared stealth material is a very key part in the infrared stealth technology.
With the increasingly changing technology, higher requirements are put on the stealth material, the novel stealth material must meet the requirements of light weight, thinness, width, strength and the like, and the light weight means that the quality of the stealth material is lightened; "thin" means that the thickness of the stealth material is to be reduced; the width refers to the wide frequency band of the stealth material capable of being stealthed; "strong" means that the stealth material has strong wave-absorbing ability.
Graphene as a novel carbon two-dimensional nano material has excellent mechanical and optical properties, and has the characteristics of large specific surface area, ultrahigh hardness, excellent thermal conductivity, electric conductivity and the like. The graphene is applied to the infrared stealth material, and can play several roles: (1) graphene is the material with the lightest mass at present, so that the mass of the infrared stealth material can be reduced, and the weight of the infrared stealth material can be reduced; (2) the graphene has an ultra-large specific surface area and an ultra-thin thickness, so that the thickness of the infrared stealth material can be reduced; (3) the graphene has excellent optical characteristics, and can expand the invisible frequency band of the invisible material; (4) the graphene has stronger wave-absorbing property, and can improve the wave-absorbing capability of the infrared stealth material. The addition of graphene in the infrared stealth material can meet the requirements of light, thin, wide, strong and the like of the stealth material.
Disclosure of Invention
The invention provides a graphene-based infrared stealth composite material and a preparation method thereof, and solves the problems of poor wave absorption capability and heavy weight of stealth materials in the prior art.
The technical scheme of the invention is realized as follows: a graphene-based infrared stealth composite material and a preparation method thereof comprise the following steps:
(1) firstly, dispersing graphene powder, a wave absorbing agent and an additive into absolute ethyl alcohol by using an ultrasonic two-dimensional material stripper to obtain a mixed dispersion liquid;
(2) dispersing phenolic resin and epoxy resin into water by using an ultrasonic two-dimensional material stripper to obtain phenolic resin/epoxy resin dispersion liquid;
(3) and mixing the two dispersions, uniformly dispersing in an ultrasonic stripper, further dispersing by high-speed stirring, and adding n-butyl alcohol to adjust viscosity, thereby finally obtaining the graphene-based infrared stealth composite material.
Preferably, the size of the graphene powder adopted in the step (1) is 50-200 nm; the wave absorbing agent is one or more of A1 powder, Zn powder, Cu powder and phthalocyanine green and phthalocyanine blue, wherein the Al powder, the Zn powder and the Cu powder are of sheet structures and have the sizes of 10-80 mu m; the additive is one or more of zinc sulfide (ZnS), zinc selenide (ZnSe) and gallium arsenide (GaAs).
Preferably, the mass ratio of the graphene powder, the wave absorbing agent and the additive in the step (1) is 1: 1-1: 3.
Preferably, in the step (1), the concentration of the graphene powder in the absolute ethyl alcohol is 0.1-1 mg/mL, the ultrasonic power is 800-1500W, and the time is 6-8 h.
Preferably, the mass ratio of the phenolic resin to the epoxy resin in the step (2) is 5: 1-5: 5, and the mass ratio of the phenolic resin to the water is 1: 1-1: 2; the ultrasonic power is 200-500W, and the time is 5-8 h.
Preferably, the volume ratio of the mixed dispersion liquid to the phenolic resin/epoxy resin dispersion liquid in the step (3) is 1: 10-1: 5, and the mass of the n-butyl alcohol is 0.5-3% of the mass of the phenolic resin.
Preferably, in the step (3), the ultrasonic power is 400-1000W, the time is 3-5 h, the high-speed stirring rotating speed is 1200-1500 rmp, and the time is 1.5-3 h.
The invention also provides the graphene-based infrared stealth composite material prepared by the method.
The invention has the beneficial effects that:
1. according to the invention, graphene is uniformly dispersed in the stealth material to obtain the uniformly dispersed graphene-based infrared stealth composite material, so that the quality of the stealth material is reduced, the coating thickness of the stealth material is reduced, and the wave absorbing capability of the stealth material is improved.
2. The method has the advantages of simple equipment and process, good effect, wide adaptability and high use value.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 graphene-based infrared stealth composite material and a preparation method thereof comprise the following steps:
(1) firstly, dispersing graphene powder with the size of 50nm, a wave absorbing agent and an additive into absolute ethyl alcohol by using an ultrasonic two-dimensional material stripper under the power of 1000W for 8h to obtain a mixed dispersion liquid, wherein the concentration of the graphene powder in the absolute ethyl alcohol is 0.5mg/mL, the wave absorbing agent is Al powder, Zn powder and Cu powder, the mass ratio of the wave absorbing agent to the absolute ethyl alcohol is 1:1, the additive is zinc sulfide (ZnS), zinc selenide (ZnSe) and gallium arsenide (GaAs), the mass ratio of the additive to the additive is 1:1, and the mass ratio of the graphene powder, the wave absorbing agent to the additive is 1: 1.
(2) And dispersing phenolic resin and epoxy resin into water by using an ultrasonic two-dimensional material stripper under 500W for 5h under ultrasonic waves to obtain phenolic resin/epoxy resin dispersion liquid, wherein the mass ratio of the phenolic resin to the epoxy resin is 5: 2, and the mass ratio of the phenolic resin to the water is 1: 2.
(3) Mixing the two dispersions, ultrasonically dispersing the two dispersions in an ultrasonic two-dimensional material stripper for 5 hours at the power of 600W, further dispersing the two dispersions by stirring the two dispersions at a high speed of 1200rmp for 3 hours, adding n-butyl alcohol to adjust the viscosity, and finally obtaining the graphene-based infrared stealth composite material, wherein the volume ratio of the graphene dispersion to the phenolic resin/epoxy resin dispersion is 1:10, and the mass of the n-butyl alcohol is 1% of that of the phenolic resin.
Compared with the infrared stealth material without the added graphene, the graphene-based infrared stealth composite material prepared by the method has the wave absorbing capacity improved by 23%.
Example 2:
the graphene powder size was 150nm and the other procedure was the same as in example 1.
Compared with the infrared stealth material without the added graphene, the graphene-based infrared stealth composite material prepared by the method has the wave absorbing capacity improved by 10%.
Example 3:
the concentration of graphene powder in absolute ethanol was 0.1mg/mL, and the other procedures were the same as in example 1.
Compared with the infrared stealth material without the added graphene, the graphene-based infrared stealth composite material prepared by the method has the wave absorbing capacity improved by 30%.
Example 4:
wherein the volume ratio of the graphene dispersion liquid to the phenolic resin/epoxy resin dispersion liquid is 1: 7.
Compared with the infrared stealth material without the added graphene, the graphene-based infrared stealth composite material prepared by the method has the wave absorbing capacity improved by 32%.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. A preparation method of a graphene-based infrared stealth composite material is characterized by comprising the following steps:
(1) firstly, dispersing graphene powder, a wave absorbing agent and an additive into absolute ethyl alcohol by using an ultrasonic two-dimensional material stripper to obtain a mixed dispersion liquid, wherein the mass ratio of the graphene powder to the wave absorbing agent to the additive is 1:1: 1-1: 3: 3; the size of the adopted graphene powder is 50-200 nm; the wave absorbing agent is Al powder, Zn powder and Cu powder in a mass ratio of 1:1:1, wherein the Al powder, the Zn powder and the Cu powder are of sheet structures and have sizes of 10-80 mu m; the additive is one or more of zinc sulfide (ZnS), zinc selenide (ZnSe) and gallium arsenide (GaAs); the concentration of the graphene powder in absolute ethyl alcohol is 0.1-1 mg/mL, the ultrasonic power is 800-1500W, and the time is 6-8 h;
(2) dispersing phenolic resin and epoxy resin into water by using an ultrasonic two-dimensional material stripper to obtain phenolic resin/epoxy resin dispersion liquid; the mass ratio of the phenolic resin to the epoxy resin is 5: 1-5: 5, and the mass ratio of the phenolic resin to the water is 1: 1-1: 2; the ultrasonic power is 200-500W, and the time is 5-8 h;
(3) mixing the two dispersions, uniformly dispersing in an ultrasonic stripper, further dispersing by high-speed stirring, and adding n-butyl alcohol to adjust viscosity, thereby finally obtaining the graphene-based infrared stealth composite material; the volume ratio of the mixed dispersion liquid to the phenolic resin/epoxy resin dispersion liquid is 1: 10-1: 5, and the mass of the n-butyl alcohol is 0.5% -3% of the mass of the phenolic resin.
2. The preparation method of the graphene-based infrared stealth composite material as claimed in claim 1, wherein in the step (3), the ultrasonic power is 400-1000W, the time is 3-5 h, the high-speed stirring speed is 1200-1500 rmp, and the time is 1.5-3 h.
3. The graphene-based infrared stealth composite material prepared by the method of any one of claims 1-2.
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| CN113881185B (en) * | 2021-11-17 | 2023-04-11 | 航天特种材料及工艺技术研究所 | Graphene modified phenolic resin, preparation method thereof and application thereof in preparation of composite material |
| CN114106654A (en) * | 2021-11-24 | 2022-03-01 | 中昊北方涂料工业研究设计院有限公司 | Infrared low-emissivity coating without metal filler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735704A (en) * | 2008-11-17 | 2010-06-16 | 财团法人工业技术研究院 | Infrared low emissivity coating and forming method thereof |
| CN102977726A (en) * | 2012-11-09 | 2013-03-20 | 高润宝 | Novel low-infrared-emissivity corrosion-resistant coating |
| CN103980806A (en) * | 2014-05-22 | 2014-08-13 | 电子科技大学 | Method for coating infrared stealth coating on object surface coated with radar absorbing coating |
| CN108485361A (en) * | 2018-03-22 | 2018-09-04 | 中国船舶重工集团公司第七二五研究所 | A kind of infrared low-emissivity coating of graphene-containing |
| CN108610725A (en) * | 2018-06-04 | 2018-10-02 | 丹阳市银海镍铬化工有限公司 | Multiband, multilayer electromagnetic matching camouflage paint system and its application |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735704A (en) * | 2008-11-17 | 2010-06-16 | 财团法人工业技术研究院 | Infrared low emissivity coating and forming method thereof |
| CN102977726A (en) * | 2012-11-09 | 2013-03-20 | 高润宝 | Novel low-infrared-emissivity corrosion-resistant coating |
| CN103980806A (en) * | 2014-05-22 | 2014-08-13 | 电子科技大学 | Method for coating infrared stealth coating on object surface coated with radar absorbing coating |
| CN108485361A (en) * | 2018-03-22 | 2018-09-04 | 中国船舶重工集团公司第七二五研究所 | A kind of infrared low-emissivity coating of graphene-containing |
| CN108610725A (en) * | 2018-06-04 | 2018-10-02 | 丹阳市银海镍铬化工有限公司 | Multiband, multilayer electromagnetic matching camouflage paint system and its application |
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