CN111876046A - Visible light-near infrared-thermal infrared-millimeter wave-centimeter wave multi-spectrum stealth integrated composite coating - Google Patents

Visible light-near infrared-thermal infrared-millimeter wave-centimeter wave multi-spectrum stealth integrated composite coating Download PDF

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CN111876046A
CN111876046A CN201911299312.6A CN201911299312A CN111876046A CN 111876046 A CN111876046 A CN 111876046A CN 201911299312 A CN201911299312 A CN 201911299312A CN 111876046 A CN111876046 A CN 111876046A
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nano
coating
infrared
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millimeter wave
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黄晟律
陈利民
陈俊声
杨茜
陈蓓京
程素兰
应硕本
夏文学
黄克彬
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TIANJIN AEROSPACE TECHNOLOGY DEVELOPMENT CO LTD
Wenzhou Lucheng Printing And Dyeing Factory
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TIANJIN AEROSPACE TECHNOLOGY DEVELOPMENT CO LTD
Wenzhou Lucheng Printing And Dyeing Factory
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    • 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
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    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/30—Camouflage paints
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    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives

Abstract

A visible light-near infrared-thermal infrared-millimeter wave-centimeter wave multi-spectrum stealth integrated composite coating comprises the following components: the composite coating comprises a three-color camouflage layer, a thermal radiation shunt blocking coating, an impedance matching transition layer, a millimeter wave-centimeter wave radar wave absorbing layer and a three-prevention coating with strong adhesive force with a target base material structure from top to bottom in sequence. The three-color camouflage surface coating is based on nano oxide and semiconductor materials. The thermal radiation shunt and barrier coating is based on nano aluminum powder and nano mica powder. The impedance matching transition layer is based on nano-oxide. The millimeter wave-centimeter wave radar wave absorbing layer is based on nano Fe, gamma- (Fe, Ni) alloy powder and electrolytic Fe powder. The three-proofing coating is based on nano zinc phosphate. The camouflage material has comprehensive advantages in camouflage stealth performance and environmental performance, particularly in three-proofing performance under severe environment.

Description

Visible light-near infrared-thermal infrared-millimeter wave-centimeter wave multi-spectrum stealth integrated composite coating
Technical Field
The invention belongs to the field of novel materials with special functions, and relates to a multi-spectrum stealth integrated coating special for an amphibious tank, which can also be used as a stealth of other military equipment, in particular to a camouflage stealth of national defense and industrial accidents.
Background
The three main pillars of high-tech war are C3I system, precision guided munitions and electronic warfare. Due to C3The I system (Command Command, Control, Communication, Information) is composed of a large number of electronic devices and various metal components, and the threat of electronic attack is particularly great, so that the main attack target of electronic warfare is the enemy C3And (I) system. One problem that is worth noting is that the modern high-tech war is characterized by: "information wins war" in realityThe concept of "attack" and "prevention" in electronic warfare is different from that in ordinary warfare. Stealth against radar waves, infrared, etc., is actually an "electronic attack". The high development of modern military target multi-spectrum detection technology, precision guidance technology and Global Positioning System (GPS) technology makes the hit rate of an attack weapon on a target in modern high-technology war almost determined by the discovery probability of the military target, "discovered is equal to destroyed", become a consensus of modern military families. Especially, the rapid development of the current infrared imaging accurate guidance technology, the dual-mode detection technology (infrared-millimeter wave detection technology and solutions) and the three-millimeter wave final guidance technology causes the survivability of weaponry under the modern war condition to be seriously threatened. Therefore, stealth, which is a technique for reducing the probability of finding military targets, is a research topic that is highly regarded by countries in the world.
The battle of English and Ama islands, the gulf war and the north-south invading war all demonstrate the latest achievements of modern military technologies, and disclose the functions and urgent needs of various advanced photoelectric countermeasure technologies and stealth technologies in future war to military decision makers of various countries. Thus, the investment in modern stealth engineering and its associated fundamental research in weaponry of countries around the world is increasing, making it an increasing proportion of the total cost of weaponry. Modern stealth technology brings great benefits from both military and economic perspectives by greatly enhancing the survivability and aggressiveness of weaponry in modern war conditions. Therefore, it is very important to research and develop basic research and application research of novel stealth materials, stealth equipment and related technologies. Is one of the important research subjects for strengthening the national strength of China.
In the prior art, the stealth materials are mostly single-band or few dual-band stealth materials, such as U.S. Pat. Nos. 4116906, AD-A-157496, Japanese patent Nos. 56-26968 and 58-188198, Chinese patent Nos. ZL86104839 and ZL88108670.3, and related domestic institutes, which all provide stealth materials with single-band dominant millimeter waves or dominant millimeter waves. Chinese patent ZL9110764.7 (applied by the institute of iron and steel) relates to a millimeter wave-centimeter wave dual-band stealth material; US patent 4156033 relates to a thermal camouflage material which is obtained by coating a target with a layer of foam which can be varied in thickness density and colour at will for thermal camouflage purposes. US4142015 also provides a thermal and optical camouflage material. The American navy invented a blue-gray low-reflectivity infrared coating (US4311623) for warships, and the Danish patent DE3118256 invented a colored paint with low emissivity in the thermal infrared radiation frequency region, said paint containing 3-30% of metal pigment.
The Royal Signal and Radar institute (RSRE) and the research institute for supplies and bedding (RCRDE) in the United kingdom are well known units for developing heat camouflage materials in Europe and have done much work in the research of heat camouflage materials such as low emissivity camouflage paints, diamond-like carbon shields, and heat camouflage blankets. The research on the thermal stealth material performance evaluation method by the FGAN optical research institute of West Germany is also concerned with the thermal stealth product development work of Barracuda company in Sweden. The research on the heat stealth coating and a famous research report published by the Australian department of defense materials institute, Calvert.R.L, et al, "Surface coatings for low emissivity in the thermal skin band" arouses a great deal of interest from experts in various countries. The camouflage technology aiming at the BaLajuda in Sweden is particularly noticed by people, and the variety of the camouflage technology is complete, so that the camouflage technology is developed into a series of products, such as camouflage paint series, camouflage nets, camouflage cloth, shielding cloth, camouflage deformation fans and umbrellas, heat insulation blankets and other various series. However, they have certain defects in the multi-spectrum compatible technology, such as the integral camouflage hiding effect cannot be achieved in the integral design of the multi-spectrum camouflage coating and the multi-spectrum camouflage net, for example, the fusion degree of the multi-spectrum camouflage coating and the multi-spectrum camouflage net with the background is influenced due to the poor thermal camouflage color separation effect. And is also poorly compatible with radar waves. Nevertheless, it has become a large country for world export camouflage appliances. In recent years, the U.S. has opened up a new approach in the research of radar wave absorbing materials, and they have made use of a carbon method to produce Carbon Infrared Filters (CIF), which makes the materials have a new breakthrough in the aspects of band broadening, absorption rate improvement, weight reduction and thickness reduction, and spread to millimeter waves, and at the same time, there is a recent sign that the materials are extended to 3 mm band and are used by being compounded with thermal infrared stealth materials such as thermal infrared 3-5 μm, 8-14 μm, and the like into a whole. The stealth material is developing towards the directions of multi-spectrum, high performance and strong practicability, but the research work difficulty is very high, and mainly because the infrared stealth material established on the basis of high reflection and low specific radiance and the RAM with low reflection and high absorption have direct conflict on the working principle, the multi-spectrum stealth material has no breakthrough progress in a longer time, and the multi-spectrum stealth material integrating visible light, near infrared, thermal infrared, millimeter wave and centimeter wave is not really developed. Therefore, the composite multi-spectrum stealth integrated material and the mechanism research thereof are key scientific problems which are mainly attacked by all countries in the world in a considerable period in the future.
Disclosure of Invention
The invention aims to provide a multi-spectrum stealth coating special for an amphibious tank, which integrates visible light, near infrared, thermal infrared, millimeter wave and centimeter wave. The research is that naval equipment division assigns the task specially and carries out technical attack and customs, and the project code is as follows: the naval weaponry studied ZH0104 in advance.
In view of the above, material research and scientific experiments have been conducted.
Firstly, carrying out overall structure design on a material, and determining a dark green, medium green and yellow earth-based visible light, near infrared and thermal infrared camouflage layers based on nano oxides and nano semiconductor pigments as shown in a multi-spectrum integrated composite coating structure design diagram of fig. 1; a thermal radiation shunt blocking layer taking nano flaky aluminum powder and nano flaky mica powder as bases; the radar wave absorbing coating comprises an impedance matching transition layer based on nano oxide, a millimeter wave-centimeter wave radar wave absorbing layer based on nanoscale iron powder, gamma- (Fe, Ni) alloy powder and electrolytic iron powder, and a three-proofing coating with strong structural adhesion with a target base material.
The chemical components of each layer according to the structural design drawing of the nano multi-spectrum stealth integrated coating are as follows:
the tricolor camouflage layer comprises a dark green paint, a medium green paint and a khaki paint. The dark green coating comprises the following chemical components in percentage by weight: 10 to 30 percent of nano cobalt nitrate,20-60% of polymer binder, 5-20% of dispersant, 5-15% of curing agent and 5-10% of diluent; the chemical components (weight percent) of the medium green coating are 2-10 percent of nano cobalt nitrate and (ferric oxide) iron green (Fe)2O3)2-10％；，SnO22-8% of nano aluminum powder, 2-5% of CdS, 25-65% of polymer binder, 5-10% of dispersant, 2-10% of curing agent and 2-10% of diluent; the yellow-earth coating comprises the following chemical components in percentage by weight: nanometer iron oxide yellow (nanometer Fe)2O3) 10-30% of nano aluminum powder, 5-10% of nano aluminum powder, 2-10% of CdS and SnO22-10% of nano cobalt nitrate, 25-65% of polymer binder, 5-10% of dispersing agent, 2-10% of curing agent and 2-10% of diluent;
the chemical components (weight percent) of the thermal radiation shunt barrier coating are as follows: 10-20% of nano alumina powder, 10-30% of nano mica powder, 20-60% of a polymer binder, 5-10% of a dispersant, 5-10% of a curing agent and 5-10% of a diluent;
the chemical composition (weight percent) of the impedance matching transition layer is as follows: 20-40% of nano ferric oxide, 30-60% of high molecular polymer, 5-15% of dispersing agent, 5-15% of curing agent and 5-10% of diluent;
the millimeter wave-centimeter wave radar absorbing layer comprises the following chemical components in percentage by weight: 10-30% of nano iron powder, 5-20% of electrolytic iron powder, 5-20% of nano iron-nickel alloy powder, 2-10% of superfine magnetic fiber, 30-60% of high molecular binder, 2-10% of dispersing agent, 2-10% of curing agent and 2-10% of diluent;
the chemical components (weight percent) of the three-proofing coating with strong structural adhesion with a target base material are as follows: 20-40% of nano zinc phosphate, 40-60% of modified epoxy resin, 10-20% of low molecular polyamide and 3-5% of 103 diluent;
in the chemical component components, the purity of the nano cobalt nitrate is not lower than 99.5 percent; the nano mica powder is synthetic mica powder, has a sheet structure and a molecular formula of KMg3(AlSi2O10)F2The granularity is less than or equal to 100 nm; the nano ferric oxide has a sheet structure, and the granularity is less than or equal to 100 nm; the superfine magnetic fiber is prepared through chemical topological reaction to produce needle-shaped alpha-Fe 00H, and topological reaction, dewatering and reduction to produce needle-shaped magnetic fiberIron fibers with a diameter of the order of 100nm to 10 μm.
The visible light-near infrared-thermal infrared-millimeter wave-centimeter wave multi-spectrum stealth integrated composite coating is mainly applied to amphibious tanks. The multi-spectrum stealth coating for the amphibious tank has a particularly severe use environment and needs to have severe tests of salt mist resistance, mould resistance and damp and heat resistance. The past stealth coating is difficult to meet the three-proofing use requirement, so that the coating has short service life, is easy to crack and fall off and has weak adhesion. The invention adopts the component formula, particularly introduces nano aluminum powder, nano alumina powder, nano flaky mica powder, nano flaky oxide powder and the like into the coating, and plays an important role in improving the stealth compatibility and the three-proofing performance. In order to solve the problems that the coating and a steel structure have strong adhesive force and three-proofing resistance, the multi-spectrum integrated composite coating introduces a layer of primer which is extremely strong in combination with the steel structure (the adhesive force is more than 10mpa, and the general coating can only be 3-5mpa), also has extremely strong three-proofing performance and has compatibility with a millimeter wave-centimeter wave radar wave absorbing layer, so that the nano multi-spectrum stealth integrated coating has reliability when used in a severe environment on an amphibious tank.
The preparation method of the nano multi-spectrum stealth integrated coating for the amphibious tank comprises the following steps:
according to respective chemical component ranges, a three-proofing bottom layer coating, a millimeter wave-centimeter wave radar wave absorption layer coating, an impedance matching transition layer coating, a thermal radiation shunt blocking layer coating and a dark green coating, a medium green coating and a khaki coating contained in a three-color camouflage layer are prepared respectively. And then spraying the above-mentioned various coatings on an amphibious tank. Spraying three-proofing primer, spraying millimeter wave-centimeter wave radar wave absorbing layer after curing, spraying impedance matching transition layer after curing, spraying thermal radiation shunt blocking layer, and spraying dark green paint, medium green paint and khaki paint contained in the three-color camouflage layer.
Has the advantages that:
1. the multi-spectrum stealth coating is used in a severe environment on an amphibious tank, and has a good multi-spectrum stealth function. And the problem of difficult use of the stealth material is solved, namely the coating has good three-prevention using performance, so that the coating does not crack, peel off or corrode and has strong adhesive force.
2. The multi-spectrum compatibility is better solved, especially the compatibility of radar waves and thermal infrared wave bands, the compatibility of thermal infrared in 8-14 mu m wave bands is solved, the compatibility of 3-5 mu m wave bands is also solved, and the stealth compatibility of thermal infrared stealth and radar waves is really realized when the infrared stealth and radar waves are used on an amphibious tank.
3. The multispectral coating is practically applied to an amphibious tank, so that the discovery probability of enemies is greatly reduced, and the found probability is not more than 30% in a visible light wave band; and is not more than 30% in the near infrared band.
An InfroMetrics Model 760 thermal imager imported from the United states is adopted in the thermal infrared band, and the thermal imager is respectively arranged at 8: 00-9: 00, noon 11: 00-12: 00, 5 in the afternoon: 00-6: 00, 9 evening: 00-10: 00 and other 4 typical time periods show that the brightness of various spots of the multi-spectrum camouflage stealth coating is consistent with the brightness of surrounding background spots, the outline of the amphibious tank is changed, the infrared deformation camouflage effect is achieved, and 80% of time and background fusion degree are good. And the fusion with the background is also good at millimeter wave band and centimeter wave band, and the fusion is completely in the background and is difficult to be found by enemies.
4. The materials developed and invented by the method are examined by aerial survey, a meter-171 helicopter and a prize-shaped II type remote sensing airplane are adopted, an LMK-3000 aerial camera, an infrared pod system and a Ku waveband airborne synthetic aperture radar are carried, the ground resolution of visible light color and color infrared photography is 0.1, the ground resolution of a synthetic aperture radar image and an infrared thermal image is 1 meter, and the detection level is equivalent to the detection level of the most advanced foreign imaging satellite. The detection result shows that the multi-spectrum stealth paint (including the multi-spectrum stealth paint sprayed on roads and roofs) sprayed on national defense works has obvious camouflage spot segmentation, and the tone and brightness of each color spot are extremely well fused with the same color of the background; seen from the color infrared aerial photo, dark green patches and middle green patches on the camouflage coating respectively show dark red and large red colors, and the colors of the patches are consistent with the colors of background plants; from SAR images, the multi-spectrum coating obviously changes the monochromaticity of a cement roof, presents irregular patterns with different brightness and darkness, and has the mottle degree similar to the background; from the thermal infrared image, the camouflage coating patch is obvious, can better divide the appearance of the target, is better fused with the background, is difficult to discover the national defense work after camouflage, and can effectively cope with the most advanced visible light, color infrared, synthetic aperture radar, thermal infrared and other multiband imaging satellite reconnaissance at home and abroad at present.
5. The invention has strong practicability, and shows the characteristic of comprehensive technical application in both camouflage stealth performance and environmental performance, especially in the three-proofing resistance under severe environment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a structural diagram of a nano multi-spectrum integrated composite coating
In the figure:
1. three-color camouflage layer
2. Thermal radiation shunt barrier
3. Impedance matching transition layer
4. Millimeter wave-centimeter wave radar absorbing layer
5. Three-proofing coating
6. Target base material
FIG. 2 is a millimeter wave characteristic diagram actually measured for a camouflage stealth amphibious tank
FIG. 3 is a millimeter wave characteristic diagram measured by an amphibious tank without camouflage
FIG. 4 is a diagram of measured centimeter wave characteristics of a camouflage stealth amphibious tank
FIG. 5 is a graph showing measured centimeter wave characteristics of an amphibious tank without camouflage
Examples
Three batches of three-proofing bottom coating, millimeter wave-centimeter wave radar absorbing coating, impedance matching transition layer coating, thermal radiation shunt blocking coating and dark green coating, medium green coating and khaki coating contained in a three-color camouflage layer are respectively prepared. The specific chemical components are shown in tables 1-7. After the coating is prepared, spraying a three-proofing bottom coating, spraying a millimeter wave-centimeter wave radar wave absorbing layer coating after curing, spraying an impedance matching transition layer coating after curing, spraying a thermal radiation shunt blocking layer coating, and finally spraying a dark green coating, a medium green coating and a khaki coating contained in a three-color camouflage layer. The coating materials are respectively sprayed on an amphibious tank A, a national defense engineering target B and a steel plate C.
TABLE 1 chemical composition of three-proofing primer coating (% by weight)
Batch number Nano zinc phosphate Modified epoxy Low molecular polyamide 103 diluent
1 20 40 10 3
2 30 50 15 4
3 35 60 20 5
TABLE 2 chemical composition of millimeter wave-centimeter wave radar absorbing layer coating (weight%)
Figure BSA0000197788800000061
Figure BSA0000197788800000071
TABLE 3 chemical composition of impedance matching transition layer coating (% by weight)
Figure BSA0000197788800000072
Table 4 chemical composition of thermal radiation shunt barrier coating (% by weight)
Figure BSA0000197788800000073
TABLE 5 dark Green paint chemistry (% by weight)
Figure BSA0000197788800000074
Chemical composition of Green dope in Table 6 (% by weight)
Figure BSA0000197788800000075
Figure BSA0000197788800000081
TABLE 7 chemical composition of the khaki paints (% by weight)
Figure BSA0000197788800000082
Firstly, three batches of three-proofing bottom layer coatings are sprayed on A, B, C, then three batches of millimeter wave-centimeter wave radar absorbing coatings are sprayed after curing, then an impedance matching transition layer and a thermal radiation shunt blocking layer are sprayed after curing, and finally three batches of dark green, medium green and khaki camouflage surface layer coatings are sprayed, thus forming the nano multi-spectrum military stealth coating of the target.
And then carrying out comparison test on the A, B, C camouflage stealth target and the A, B, C target which is not camouflage, wherein the results are shown in tables 8, 9 and 10, and the results are obtained by combining with the graphs shown in fig. 2, 3, 4 and 5, and the actually measured millimeter wave characteristic graph shows that the camouflage stealth amphibious tank is extremely well fused with the background and is difficult to be found by an enemy, and the tank which is not camouflage stealth is undoubtedly exposed and is easy to be found by the enemy. The actually measured centimeter wave characteristic diagram shows that the camouflage stealth amphibious tank is well integrated with the background and is difficult to be found by an enemy; the invisible amphibious tank is clearly exposed and can be easily found by an enemy.
TABLE 8 test results for visible, near-infrared, and thermal infrared applications
Figure BSA0000197788800000083
Figure BSA0000197788800000091
TABLE 9 test results of millimeter wave band application
Figure BSA0000197788800000092
TABLE 10 cm wave band application test results
Figure BSA0000197788800000093
Figure BSA0000197788800000101
The present invention has been described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the principle of the present invention, and these changes and modifications also fall into the protection scope of the appended claims.

Claims (10)

1. A visible light-near infrared-thermal infrared-millimeter wave-centimeter wave multi-spectrum stealth integrated composite coating is characterized by comprising the following components in parts by weight: the composite coating comprises a three-color camouflage layer, a thermal radiation shunt separation coating, an impedance matching transition layer, a millimeter wave-centimeter wave absorbing layer and a three-prevention coating from top to bottom in sequence,
the three-color camouflage layer is a visible light, near infrared and thermal infrared camouflage layer based on nano oxide and semiconductor material,
the thermal radiation shunt and barrier coating is a thermal radiation barrier layer taking nano aluminum powder and nano mica powder as bases,
the impedance matching transition layer is based on nano oxide,
the millimeter wave-centimeter wave absorbing layer is a radar wave absorbing layer based on nano Fe, gamma- (Fe, Ni) alloy powder and electrolytic Fe powder,
the three-proofing coating is a three-proofing coating based on nano zinc phosphate.
2. The visible-near-infrared-thermal-infrared-millimeter wave-centimeter wave multi-spectral stealth integrated composite coating of claim 1, wherein the tri-color camouflage layer comprises a dark green coating, a medium green coating, and a khaki coating;
the dark green coating comprises, by weight, 10-30% of nano cobalt nitrate, 20-60% of a high-molecular binder, 5-20% of a dispersant, 5-15% of a curing agent and 5-10% of a diluent;
the chemical components (weight percent) of the medium green coating are 2-10 percent of nano cobalt nitrate and 2-10 percent of iron green (Fe2O 3); SnO 22-8%, nano aluminum powder 2-5%, CdS 2-5%, polymer binder 25-65%, dispersant 5-10%, curing agent 2-10%, and diluent 2-10%;
the yellow-earth coating comprises the following chemical components in percentage by weight: 10-30% of nano iron oxide yellow (nano Fe2O3), 5-10% of nano aluminum powder, 2-10% of CdS, 25-65% of SnO 22-10% of nano cobalt nitrate, 25-65% of a polymer binder, 5-10% of a dispersant, 2-10% of a curing agent and 2-10% of a diluent.
3. The visible-near infrared-thermal infrared-millimeter wave-centimeter wave multi-spectral stealth integrated composite coating according to claim 1, wherein the chemical composition (wt%) of the thermal radiation shunt barrier layer is: 10-20% of nano alumina powder, 10-30% of nano mica powder, 20-60% of a polymer binder, 5-10% of a dispersant, 5-10% of a curing agent and 5-10% of a diluent.
4. The visible-near infrared-thermal infrared-millimeter wave-centimeter wave multi-spectral stealth integrated composite coating according to claim 1, wherein the impedance matching transition layer comprises the following chemical components (in weight percent): 20-40% of nano ferric oxide, 30-60% of high molecular polymer, 5-15% of dispersing agent, 5-15% of curing agent and 5-10% of diluent.
5. The visible light-near infrared-thermal infrared-millimeter wave-centimeter wave multi-spectrum stealth integrated composite coating of claim 1, wherein the millimeter wave-centimeter wave radar wave-absorbing layer comprises the following chemical components in percentage by weight: 10-30% of nano iron powder, 5-20% of electrolytic iron powder, 5-20% of nano iron-nickel alloy powder, 2-10% of superfine magnetic fiber, 30-60% of high molecular binder, 2-10% of dispersing agent, 2-10% of curing agent and 2-10% of diluent.
6. The visible-near infrared-thermal infrared-millimeter wave-centimeter wave multi-spectral stealth integrated composite coating according to claim 1, wherein the chemical composition (wt%) of the three-proofing coating is as follows: 20-40% of nano zinc phosphate, 40-60% of modified epoxy resin, 10-20% of low molecular polyamide and 3-5% of 103 diluent.
7. The visible light-near infrared-thermal infrared-millimeter wave-centimeter wave multi-spectrum stealth integrated composite coating according to claim 5, wherein the electrolytic iron powder is dendritic iron powder and is used as an absorbent of the multi-spectrum stealth integrated coating.
8. The visible light-near infrared-thermal infrared-millimeter wave-centimeter wave multi-frequency stealth integrated composite coating according to claim 5, wherein the ultrafine magnetic fibers are magnetic fibers generated by chemical topological reaction.
9. The visible-near-infrared-thermal-infrared-millimeter wave-centimeter wave multi-spectral stealth integrated composite coating according to any one of claims 2 or 5, wherein the polymer binder is one of modified epoxy resin, polyurethane, chlorosulfonated polyethylene, neoprene, nitrile rubber, chlorinated rubber, silicone rubber, or modified silicone.
10. The visible-near-infrared-thermal-millimeter wave-centimeter wave multi-spectral stealth integrated composite coating according to any one of claims 2, 3, 4 or 5, wherein the dispersant is any one of toluene, xylene, diester-based liquid, methanol, ethanol, sodium oleate or polyvinylpyrrolidone;
the curing agent is any one of phthalate, low-molecular polyamide, imidazole, ethylenediamine, triethylene tetramine, diethylenetriamine, dimethylformamide, maleate or pyromellitate;
the diluent is any one of alcohol, coal tar, isopropanol, acetone butanol or isobutanol.
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