CN108715711A - Thermochromic emissivity-changing coating and preparation method and application thereof - Google Patents
Thermochromic emissivity-changing coating and preparation method and application thereof Download PDFInfo
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- CN108715711A CN108715711A CN201810365511.1A CN201810365511A CN108715711A CN 108715711 A CN108715711 A CN 108715711A CN 201810365511 A CN201810365511 A CN 201810365511A CN 108715711 A CN108715711 A CN 108715711A
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- emissivity
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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
- C09D11/00—Inks
- C09D11/50—Sympathetic, colour changing or similar inks
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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
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
Abstract
The invention provides a thermochromism emissivity coating and a preparation method and application thereof, wherein the coating is composed of a thermochromism material, a thermochromism emissivity material, a film forming material, an antibacterial agent, an anti-settling dispersant and a solvent, and [ (C) is selected2H5)2NH2]2CuCl4As a thermochromic material, an acrylic resin emulsion and/or a polyvinyl alcohol aqueous solution are/is matched as a film forming material and a specific solvent, and the cooperation of the three materials enables the coating to be green at room temperature (25 ℃), yellow at a high temperature (52 ℃) or above), and the coating can recover green when the temperature is reduced, and meanwhile, the coating has the characteristic of reducing emissivity along with temperature increase within a certain temperature range (60-100 ℃) by matching with a thermochromic emissivity material, so that the high-temperature weapon equipment can realize self-adaptive camouflage at an infrared band.
Description
Technical field
The invention belongs to technical field of function materials, and in particular to a kind of thermochromism can be used as adaptive camouflage coating
Become emissivity coating and the preparation method and application thereof.
Background technology
In camouflage field, camouflage coating is used for hidden military target, and military target is made to show to connect with operational environment
Close spectral reflectance performance, at present visible light, ultraviolet, near-infrared, in the wave bands such as infrared have reply enemy's reconnaissance means and
The camouflage coating designed.But the frequent of area of operations changes and military detector wave band in modern high technology war
Constantly to widen, the camouflage coating of single spectral coverage has been unable to meet the needs of camouflage protection, thus, for visible/infrared compatible pseudo-
The research of dress coating is developing progressively as inexorable trend.
For example, Chinese patent literature CN107141907A disclose a kind of adaptive camouflage coating of visible/infrared compatibility and
Preparation method, the coating are layer structure, include basal layer, prime coat, thermotropic infrared emittance layer successively from the inside to the outside
With camouflage pattern layer.The above-mentioned prior art in camouflage pattern layer by using the big dye molecule of tinting strength, tinting power so that camouflage color figure
The thickness of pattern layer is 2~3 μm, the light of far infrared band (7.5~14 μm) on the one hand can be penetrated, so as to embody thermotropic
The variation of the infrared emittance of infrared emittance layer, on the other hand since the thickness of camouflage pattern layer is more than the wave of visible light wave range
It is long, thus the color of thermotropic infrared emittance layer can not be embodied, so as to have visible/infrared compatibility adaptive for entire coating
Answer camouflage performance.But the coating structure in the technology is complicated, and correspondingly the preparation process of coating is also troublesome, is unfavorable for industrialization
Production.
Invention content
The present invention is to solve the multilayered structure present in existing visible/infrared adaptive camouflage coating of compatibility is multiple
Defect miscellaneous, preparation process is cumbersome, so provide a kind of simple in structure, preparation process it is easy can be used for producing adaptive camouflage
The thermotropic discoloration emissivity coating of coating.
Further, the present invention also provides a kind of methods being used to prepare above-mentioned thermotropic discoloration emissivity coating.
In order to achieve the above objectives, the technical solution adopted in the present invention is as follows：
A kind of thermotropic discoloration emissivity coating, based on mass fraction, raw material group becomes：
Thermochromic material 10~30%, thermotropic emissivity material 2~10%, filmogen 10~40%, antiseptic
0.1~0.6%, anti-settling dispersant 0.1~0.6%, surplus are solvent；
The thermochromic material is [(C2H5)2NH2]2CuCl4；
The filmogen is emulsion acrylic resin and/or polyvinyl alcohol water solution.
Preferably, the raw material group of the thermotropic discoloration emissivity coating becomes：
Thermochromic material 20%, thermotropic emissivity material 5%, filmogen 35%, antiseptic 0.1%, anti-settling
Dispersant 0.5%, surplus are deionized water；Or
Thermochromic material 15%, thermotropic emissivity material 3%, filmogen 30%, antiseptic 0.2%, anti-settling
Dispersant 0.2%, surplus are ethyl alcohol；Or
Thermochromic material 25%, thermotropic emissivity material 7%, filmogen 25%, antiseptic 0.1%, anti-settling
Dispersant 0.5%, surplus are diethylene glycol diethyl ether.
Preferably, the described [(C2H5)2NH2]2CuCl4Purity 99.9% or more, crystallite dimension is 1~100 μm, relatively
Humidity is 10%~20%.
Preferably, the described [(C2H5)2NH2]2CuCl4Preparation method include：
By dichloride copper and diethylamine hydrochloride with molar ratio 1:The ratio of (1.5~2.5) is dissolved in deionized water, is stirred
50~70 DEG C of reaction 2h are warming up to after mixing uniformly, cooling, filtering collects solid, is used in combination absolute ethyl alcohol to recrystallize, crystal is through drying
Afterwards to obtain the final product.
Preferably, the crystal is dried in vacuo 3h at 60 DEG C.
Preferably, the antiseptic is anilid class antiseptic, imidazoles antiseptic, thiazoles antiseptic, isothiazole
It is one or more in ketone derivatives antiseptic；And/or
The anti-settling dispersant is one kind in BYK-2155, BYK-161, BYK-2173, BYK-420, BYK-8420
Or it is a variety of.
Preferably, the thermotropic emissivity material is VO2And/or perovskite composite oxide, the Ca-Ti ore type
Composite oxides can be La1-xSrxMnO3、La1-xCaxMnO3Or Sm1-xCaxMnO3、Nd1-xEuxNiO3, wherein 1 > x > 0.
Preferably, the solvent is one or more in deionized water, ethyl alcohol, ethylene glycol or diethylene glycol diethyl ether.
Application of the above-mentioned thermotropic discoloration emissivity coating in camouflage field.
A kind of method preparing above-mentioned thermotropic discoloration emissivity coating includes：
The anti-settling dispersant is added into the deionized water, stir, add the thermotropic emissivity material,
The thermochromic material, the filmogen and the antiseptic, continue to stir, and are coated on base material after mixing, do
It is dry to obtain the final product.
Application of the thermotropic discoloration emissivity coating in camouflage field made from the above method.
Compared with prior art, above-mentioned technical proposal of the invention has the following advantages that：
1, thermotropic discoloration emissivity coating provided by the invention by thermochromic material, thermotropic emissivity material, at
Membrane material, antiseptic, anti-settling dispersant and deionized water composition, pass through selection [(C2H5)2NH2]2CuCl4As thermochromism
Material, and it is filmogen to be equipped with emulsion acrylic resin and/or polyvinyl alcohol water solution, both is between specific solvent
Coordinated acts on so that coating of the invention can (25 DEG C) aobvious greens at room temperature, at higher temperature (52 DEG C or more)
Displaing yellow can restore green when temperature is reduced to 52 DEG C or less, meet low temperature jungle environment and show jungle camouflage color mass-tone, high temperature again
Desert area shows the adaptive camouflage characteristic of desert camouflage mass-tone；At the same time coordinate thermotropic emissivity material again so that
Had in certain temperature range (60~100 DEG C) by the coating of the present invention and is increased and the characteristic of emissivity reduction with temperature, into
And high temperature weaponry is made to realize adaptive camouflage in infrared band.It can be seen that the coating of the present invention can be used as military puppet
Coating is filled, is allowed to realize adaptive camouflage in visible and infrared band.
And antiseptic is also added in coating of the present invention, effect is within a certain period of time, to keep certain slightly raw
The growth or breeding of object (bacterium, fungi, saccharomycete, algae and virus etc.) are maintained at necessary below horizontal, to ensure coating
Long-time stability and harmless.If nothing, coating may lead to microorganism mass propagation due to the problems such as store method,
The process of inkjet printing may block nozzle, to influence quality of forming film or thermochromic properties.
2, the preparation method of thermotropic discoloration emissivity coating provided by the invention, by the way that each raw material to be uniformly mixed
It being made, recycles inkjet printing technology that can obtain thermotropic discoloration emissivity coating, preparation process is easy, and operability is strong,
Convenient for industrialization.
Description of the drawings
In order to illustrate more clearly of the technical solution in the specific embodiment of the invention, specific implementation mode will be retouched below
Attached drawing needed in stating is briefly described, it should be apparent that, the accompanying drawings in the following description is some realities of the present invention
Mode is applied, it for those of ordinary skill in the art, without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
The photo (25 DEG C) that Fig. 1 is printed for the thermotropic discoloration emissivity coating that is provided by embodiment 1；
The photo (52 DEG C) that Fig. 2 is printed for the thermotropic discoloration emissivity coating that is provided by embodiment 1；
Fig. 3 is visible spectrum absorption figure of the thermotropic discoloration emissivity coating that provides of embodiment 1 at 25 DEG C, 52 DEG C；
The coating that Fig. 4 is printed for the thermotropic discoloration emissivity marking ink that is provided by embodiment 1 is in 3~5 mu m wavebands
Interior infrared emittance variation with temperature curve graph；
The coating that Fig. 5 is printed for the thermotropic discoloration emissivity marking ink that is provided by embodiment 1 is in 8~14 mu m wavebands
Interior infrared emittance variation with temperature curve graph.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It can be combined with each other at conflict.
Embodiment 1
The preparation method of thermotropic discoloration emissivity coating provided in this embodiment includes the following steps：
(1) thermochromic material [(C2H5)2NH2]2CuCl4Preparation
By CuCl2·2H2O 17g and (C2H5)2NHHCl 21.2g are dissolved in deionized water 140g, are stirred
Even, 2h is reacted in 70 DEG C of waters bath with thermostatic control, takes out postcooling to room temperature, and after solid precipitation, absolute ethyl alcohol filters, and collects solid, then
It is recrystallized 2 times with absolute ethyl alcohol, crystal is put into vacuum drying chamber, in 60 DEG C of dry 3h, obtains the needle-shaped crystalline substance of 38g bright greens
Body, as [(C2H5)2NH2]2CuCl4。
After testing, [(C2H5)2NH2]2CuCl4Purity be 99.99%, crystallite dimension is 18~31 μm, and relative humidity is
15%.
(2) preparation of coating
The BYK-2155 (German Bi Ke chemical companies production) of 0.25g, stirring are slowly added into 19.7g deionized waters
20min is slowly added to the VO of 2.5g while stirring2[(the C of powder, 10g2H5)2NH2]2CuCl4, 17.5g emulsion acrylic resins
The 1,2-benzisothiazolin-3-one of (its solid content is 40%) and 0.05g, then be persistently sprayed on aluminium sheet after stirring 1h,
60min is dried at 70 DEG C, forms the thermotropic discoloration emissivity coating that thickness is 0.1mm.
Fig. 1 is the photo printed at 25 DEG C using thermotropic discoloration emissivity coating made from the present embodiment, the figure
Photo is in green when clearly illustrating 25 DEG C, by with RAL colour chart comparisons it is found that the green is close with RAL6018 colors, RGB
Value is R101G148B68.
Fig. 2 is the photo printed at 52 DEG C using thermotropic discoloration emissivity coating made from the present embodiment, the figure
Photo is in yellow when clearly illustrating 52 DEG C, by with RAL colour chart comparisons it is found that the yellow is close with RAL1018 colors, RGB
Value is R249G206B82.Restore green again when temperature is reduced to 52 DEG C or less.
Fig. 3 is that visible spectrum of the thermotropic discoloration emissivity coating at 25 DEG C, 52 DEG C made from the present embodiment absorbs figure,
It can be seen from the figure that coating is weaker to the absorption of the visible light of 580nm or so at 25 DEG C, illustrate coating in green；At 52 DEG C
Coating is weaker to the absorption of the visible light of 550nm or more, illustrates that coating is in yellowish-brown.
The infrared emittance of thermotropic discoloration emissivity coating at different temperatures made from the present embodiment is tested, specifically
Test method is as follows：
Constant temperature water bath is heated to wait for testing temperature, coating sample is pasted onto using heat-conducting glue by water bath side, position
Below the water surface and close to center, thermal balance 30min；FLIR thermal infrared imagers are opened, startup automatic shooting function records infrared
Thermal map, using thermal infrared imager bundled software read sample surfaces radiation temperature, and be obtained by calculation coating 40 DEG C, 50
DEG C, 60 DEG C, 70 DEG C, 80 DEG C, the infrared emittance at 90 DEG C and 100 DEG C, and then it is bent to draw infrared emittance variation with temperature
Line, it is as shown in Figure 4 and Figure 5 respectively.
From fig. 4, it can be seen that in 3~5 mu m wavebands, coating is suddenly reduced in 65~70 DEG C of emissivity, and maximum sudden change value is
0.3.As shown in Figure 5, in 8~14 mu m wavebands, coating is suddenly reduced in 65~70 DEG C of emissivity, and maximum sudden change value is 0.22.
Embodiment 2
The preparation method of thermotropic discoloration emissivity coating provided in this embodiment includes the following steps：
(1) thermochromic material [(C2H5)2NH2]2CuCl4Preparation
By CuCl2·2H2O 17g and (C2H5)2NHHCl 19.7g are dissolved in deionized water 120g, are stirred
Even, 2h is reacted in 60 DEG C of waters bath with thermostatic control, takes out postcooling to room temperature, and after solid precipitation, absolute ethyl alcohol filters, and collects solid, then
It is recrystallized 2 times with absolute ethyl alcohol, crystal is put into vacuum drying chamber, in 60 DEG C of dry 3h, obtains the needle-shaped crystalline substance of 34.1g bright greens
Body, as [(C2H5)2NH2]2CuCl4。
After testing, [(C2H5)2NH2]2CuCl4Purity be 99.9%, crystallite dimension is 10~39 μm, and relative humidity is
12%.
(2) preparation of coating
It is slowly added to the BYK-161 (German Bi Ke chemical companies production) of 0.1g into 25.8g ethyl alcohol, stirs 30min, side
Stirring side is slowly added to the VO of 1.5g2[(the C of powder, 7.5g2H5)2NH2]2CuCl4, 15g emulsion acrylic resins (its solid content
40%) and the 1,2-benzisothiazolin-3-one of 0.1g it for, then after persistently stirring 1h, is sprayed on aluminium sheet, is dried at 80 DEG C
100min forms the thermotropic discoloration emissivity coating that thickness is 1mm.
Embodiment 3
The preparation method of able thermochromic provided in this embodiment includes the following steps：
(1) thermochromic material [(C2H5)2NH2]2CuCl4Preparation
By CuCl2·2H2O 17g and (C2H5)2NHHCl 16.4g are dissolved in deionized water 120g, are stirred
Even, 2h is reacted in 65 DEG C of waters bath with thermostatic control, takes out postcooling to room temperature, and after solid precipitation, absolute ethyl alcohol filters, and collects solid, then
It is recrystallized 2 times with absolute ethyl alcohol, crystal is put into vacuum drying chamber, in 60 DEG C of dry 3h, obtains the needle-shaped crystalline substance of 29g bright greens
Body, as [(C2H5)2NH2]2CuCl4。
After testing, [(C2H5)2NH2]2CuCl4Purity be 99.99%, crystallite dimension is 16~42 μm, and relative humidity is
20%.
(2) preparation of coating
The BYK-2173 (German Bi Ke chemical companies production) of 0.25g is slowly added into 21.2g diethylene glycol diethyl ethers,
30min is stirred, is slowly added to the VO of 3.5g while stirring2[(the C of powder, 12.5g2H5)2NH2]2CuCl4, 12.5g acrylic acid trees
The 1,2-benzisothiazolin-3-one of fat liquor (its solid content is 40%) and 0.05g, then persistently after stirring 1.5h, spraying
In on aluminium sheet, 80min is dried at 90 DEG C, forms the thermotropic discoloration emissivity coating that thickness is 0.5mm.
Embodiment 4
The preparation method of able thermochromic provided in this embodiment includes the following steps：
(1) thermochromic material [(C2H5)2NH2]2CuCl4Preparation
By CuCl2·2H2O 17g and (C2H5)2NHHCl 27.4g are dissolved in deionized water 150g, are stirred
Even, 2h is reacted in 65 DEG C of waters bath with thermostatic control, takes out postcooling to room temperature, and after solid precipitation, absolute ethyl alcohol filters, and collects solid, then
It is recrystallized 2 times with absolute ethyl alcohol, crystal is put into vacuum drying chamber, in 60 DEG C of dry 3h, obtains the needle-shaped crystalline substance of 38.2g bright greens
Body, as [(C2H5)2NH2]2CuCl4。
After testing, [(C2H5)2NH2]2CuCl4Purity be 99.99%, crystallite dimension is 22~50 μm, and relative humidity is
10%.
(2) preparation of coating
The BYK-420 (German Bi Ke chemical companies production) of 0.05g, stirring are slowly added into 17.15g deionized waters
10min is slowly added to the La of 5g while stirring0.825Sr0.175MnO3[(the C of powder, 7.5g2H5)2NH2]2CuCl4, 20g acrylic acid
The 1,2-benzisothiazolin-3-one of resin emulsion (its solid content is 40%) and 0.3g, then persistently after stirring 1.5h, spraying
In on aluminium sheet, 120min is dried at 80 DEG C, forms the thermotropic discoloration emissivity coating that thickness is 0.8mm.
Embodiment 5
The preparation method of able thermochromic provided in this embodiment includes the following steps：
(1) thermochromic material [(C2H5)2NH2]2CuCl4Preparation
By CuCl2·2H2O 17g and (C2H5)2NHHCl 25.5g are dissolved in deionized water 150g, are stirred
Even, 2h is reacted in 50 DEG C of waters bath with thermostatic control, takes out postcooling to room temperature, and after solid precipitation, absolute ethyl alcohol filters, and collects solid, then
It is recrystallized 2 times with absolute ethyl alcohol, crystal is put into vacuum drying chamber, in 60 DEG C of dry 3h, obtains the needle-shaped crystalline substance of 38.1g bright greens
Body, as [(C2H5)2NH2]2CuCl4。
After testing, [(C2H5)2NH2]2CuCl4Purity be 99.99%, crystallite dimension is 25~62 μm, and relative humidity is
18%.
(2) preparation of coating
The BYK-8420 (German Bi Ke chemical companies production) of 0.3g, stirring are slowly added into 28.5g deionized waters
10min is slowly added to the La of 1g while stirring0.7Ca0.3MnO3[(the C of powder, 15g2H5)2NH2]2CuCl4, 5g acrylic resins
The 1,2-benzisothiazolin-3-one of lotion (its solid content is 40%) and 0.175g, then be persistently sprayed at after stirring 1.5h
On aluminium sheet, 120min is dried at 70 DEG C, forms the thermotropic discoloration emissivity coating that thickness is 0.6mm.
Embodiment 6
The preparation method of able thermochromic provided in this embodiment includes the following steps：
(1) thermochromic material [(C2H5)2NH2]2CuCl4Preparation
By CuCl2·2H2O 17g and (C2H5)2NHHCl 22.9g are dissolved in deionized water 150g, are stirred
Even, 2h is reacted in 55 DEG C of waters bath with thermostatic control, takes out postcooling to room temperature, and after solid precipitation, absolute ethyl alcohol filters, and collects solid, then
It is recrystallized 2 times with absolute ethyl alcohol, crystal is put into vacuum drying chamber, in 60 DEG C of dry 3h, obtains the needle-shaped crystalline substance of 38.2g bright greens
Body, as [(C2H5)2NH2]2CuCl4。
After testing, [(C2H5)2NH2]2CuCl4Purity be 99.99%, crystallite dimension is 15~45 μm, and relative humidity is
17%.
(2) preparation of coating
The BYK-8420 (German Bi Ke chemical companies production) of 0.15g, stirring are slowly added into 26.75g deionized waters
10min is slowly added to the VO of 3g while stirring2[(the C of powder, 10g2H5)2NH2]2CuCl4, 10g polyvinyl alcohol water solutions and
The 1,2-benzisothiazolin-3-one of 0.1g, then be persistently sprayed on aluminium sheet after stirring 1h, 60min is dried at 90 DEG C, formed
Thickness is the thermotropic discoloration emissivity coating of 0.3mm.
Comparative example 1
Thermochromic material [(C in this comparative example2H5)2NH2]2CuCl4Preparation method with the embodiment of the present invention 1.
The preparation method of thermotropic discoloration emissivity coating is as follows in this comparative example：
The BYK-2155 (German Bi Ke chemical companies production) of 0.25g, stirring are slowly added into 19.7g deionized waters
20min is slowly added to the VO of 2.5g while stirring2[(the C of powder, 10g2H5)2NH2]2CuCl4, 17.5g aqueous polyurethane (its
40%) and the 1,2-benzisothiazolin-3-one of 0.05g solid content is, then persistently to stir, and big weight polyurethane precipitation occurs,
Filtering, filtrate is sprayed on aluminium sheet, and 60min is dried at 70 DEG C, and the coating of formation leads to colour developing not because its solid content is very low
Obviously.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of thermotropic discoloration emissivity coating, which is characterized in that based on mass fraction, raw material group becomes：
Thermochromic material 10~30%, thermotropic emissivity material 2~10%, filmogen 10~40%, antiseptic 0.1~
0.6%, anti-settling dispersant 0.1~0.6%, surplus are solvent；
The thermochromic material is [(C2H5)2NH2]2CuCl4；
The filmogen is emulsion acrylic resin and/or polyvinyl alcohol water solution.
2. thermotropic discoloration emissivity coating according to claim 1, which is characterized in that
Thermochromic material 20%, thermotropic emissivity material 5%, filmogen 35%, antiseptic 0.1%, anti-settling dispersion
Agent 0.5%, surplus are deionized water；Or
Thermochromic material 15%, thermotropic emissivity material 3%, filmogen 30%, antiseptic 0.2%, anti-settling dispersion
Agent 0.2%, surplus are ethyl alcohol；Or
Thermochromic material 25%, thermotropic emissivity material 7%, filmogen 25%, antiseptic 0.1%, anti-settling dispersion
Agent 0.5%, surplus are diethylene glycol diethyl ether.
3. thermotropic discoloration emissivity coating according to claim 1 or 2, which is characterized in that the [(C2H5)2NH2]2CuCl4Purity 99.9% or more, crystallite dimension is 1~100 μm, and relative humidity is 10%~20%.
4. according to claim 1-3 any one of them thermotropic discoloration emissivity coatings, which is characterized in that the [(C2H5)2NH2]2CuCl4Preparation method include：
By dichloride copper and diethylamine hydrochloride with molar ratio 1:The ratio of (1.5~2.5) is dissolved in deionized water, and stirring is equal
50~70 DEG C of reaction 2h are warming up to after even, cooling, filtering collects solid, is used in combination absolute ethyl alcohol to recrystallize, crystal is after drying
?.
5. thermotropic discoloration emissivity coating according to claim 4, which is characterized in that crystal vacuum at 60 DEG C
Dry 3h.
6. according to claim 1-5 any one of them thermotropic discoloration emissivity coatings, which is characterized in that the antiseptic is
Anilid class antiseptic, imidazoles antiseptic, thiazoles antiseptic, one kind in isothiazolone derivative antiseptic or more
Kind；And/or
The anti-settling dispersant is one kind or more in BYK-2155, BYK-161, BYK-2173, BYK-420, BYK-8420
Kind.
7. according to claim 1-6 any one of them thermotropic discoloration emissivity coatings, which is characterized in that the thermotropic hair
It is VO to penetrate rate material2And/or perovskite composite oxide；And/or
The solvent is one or more in deionized water, ethyl alcohol, ethylene glycol or diethylene glycol diethyl ether.
8. a kind of method preparing claim 1-7 any one of them thermotropic discoloration emissivity coatings, which is characterized in that packet
It includes：
The anti-settling dispersant is added into the deionized water, stirs, adds the thermotropic emissivity material, described
Thermochromic material, the filmogen and the antiseptic, continue to stir, and are coated on base material after mixing, drying is
?.
9. application of the claim 1-7 any one of them thermotropic discoloration emissivity coatings in camouflage field.
10. application of the thermotropic discoloration emissivity coating in camouflage field made from method according to any one of claims 8.
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