CN104073085A - Fluorocarbon camouflage coating for preventing detection of visible light and near infrared and preparation method thereof - Google Patents
Fluorocarbon camouflage coating for preventing detection of visible light and near infrared and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a camouflage coating for preventing the detection and reconnaissance of visible light and near infrared and a preparation method thereof. The camouflage coating comprises a component A and a component B, wherein the component A comprises the following materials in percentage by weight: 35%-55% of fluorocarbon resin, 20%-30% of camouflage pigments, 5%-7% of flatting agents, 0.1%-2.5% of auxiliary agents and 10%-25% of solvents; the component B comprises aliphatic series polyisocyanate curing agents; and the weight ratio of the component A to the component B is 8:1. The preparation method comprises the following steps: component A preparation (slurry preparation, color paste preparation and coating preparation) and component B preparation. The camouflage coating disclosed by the invention realizes the optical camouflage within visible light and near infrared bands through scientific proportion and reasonable combination by adopting the fluorocarbon resin and matching selected pigments, thereby protecting the target object. The camouflage coating disclosed by the invention has the advantages of convenience for construction, excellent outdoor durable property, good heat resistance, good color retention and high corrosion resistance, meets the requirement for using condition in a harsh environment and is suitable for the camouflage, corrosion prevention, decorative coating of important facilities and buildings and military equipment and equipment.
Description
Technical field
The present invention relates to a kind of coating, fluorine carbon camouflage paint of a kind of anti-visible ray of special design and near infrared from detecting and preparation method thereof.
Background technology
Along with scientific and technical development, the mankind develop into imaging reconnaissance from visual reconnaissance, since the sixties in 20th century, various detector instrument development are very fast, and the scouting detection means such as near infrared photograph, thermal infrared imaging, lll night vision, radar imagery, multispectral imaging and laser acquisition are come out one after another and develop rapidly.Photoelectronic reconnaissance in the face of comprehensive, multi-level, multiband, many means, can adopt multiple camouflage or stealthy mode to target compound, as natural hidden, camouflage paint, antiradar coatings, bait etc.Wherein, camouflage paint, because cost is compared with low, construction facility, to the widespread use of target shape strong adaptability, becomes important weapon and the means of Modern Aerial Defense.Camouflage is to make the visibility of target compound, equipment and facility be reduced to bottom line by the method for camouflage.Camouflage paint is mainly coated in the outside surface of ground military target, changes the spectral response curve of target surface, eliminates and reduce the difference of target and background optical feature, improves the amalgamation of target and background.The basic demand of optical camouflage coating is in optical region (visible ray 0.38～0.76 μ m and near infrared 0.76～1.5 μ m), coating color is similar with environmental background look most possibly, require in addition the spectral reflection characteristic of coating consistent with background, realize target surface is homochromy with spectrum with background, the effect that reaches reduction target significance or distortion, segmentation object appearance profile, realizes optic camouflage.Can be used to resist uv photography, near infrared photograph, microcosmic night vision and TV guidance etc. scouts and surveys.At present, the domestic camouflage paint of having developed has the kinds such as alkyd varnish, supervinyi chloride resin paint, acrylic resin paint, urethane, epoxy resin-based paint.
Fluorocarbon coating is to take the general designation of the coating series that fluorine resin is main film forming matter, its principal feature is that the fluorine element electronegativity of introducing in resin is large, contain a large amount of F-C keys, being heated, under the effect of light (comprising ultraviolet ray), F-C key is difficult to fracture, therefore demonstrate superpower weathering resistance, thermotolerance and resistant to chemical media corrosive nature, be better than at present the coating such as popular on the market organosilicon, acrylic resin, urethane, there is the application data that reaches 20 years open air.But because fluoro-resin has the characteristic of low surface tension, therefore the sticking power to materials such as metal, pottery and glass is poor, and fluorocarbon resin is poor to the moisture dispersibility of pigment, particularly when preparation camouflage paint, owing to using, pigment is more, the particle diameter of pigment and difference of specific gravity are very large, very easily produce the floating of coating, therefore still have certain technological difficulties with fluorocarbon resin optical camouflage coating processed.
The camouflage ability of coating is mainly to realize by the selection of pigment and the scientific combination between pigment, in visible-range, camouflage coating is selected the principle of various pigment, after being the three kinds of effects of absorption, refraction, reflection that make pigment generation light in coating, can produce the color consistent with background, i.e. the object of simulation background color.But tackle the detection of near infrared ray zone sensors, camouflage coating pigment decapacitation used meets outside color requirement, also must can produce the reflection spectrum consistent with background.Therefore multiple can not be for infrared camouflage coating for the conventional pigment of matching colors in visible-range, single pigment is often difficult to meet the demands, while preparing the anti-infrared camouflage paint of the color harmony spectral reflectance curve consistent with natural background, must select the pigment of adaptation and adopt the reasonable combination of multiple pigment to realize.Its emphasis is chlorophyll camouflage, not only color will with environmental facies seemingly, also require coating and natural chlorophyll to have and be similar to or identical degree of reflection, both have the approximately uniform curve of spectrum.
At present, domestic existing optical camouflage coating has the kinds such as alkyd varnish, supervinyi chloride resin paint, acrylic resin paint, urethane, epoxy resin-based paint, and working life is short, and ageing resistance is poor; Fluorocarbon coating is used for greatly external wall, and not yet drops into suitability for industrialized production for the fluorine carbon optical camouflage coating of anti-visible ray and near infrared light detection scouting.
Therefore, develop and a kind ofly using fluorocarbon resin as the main film forming matter of coating, preferred pigments, blending and modifying, selected auxiliary agent, reasonable combination and the optical camouflage that makes, tool is of great significance.
Summary of the invention
The object of this invention is to provide fluorine carbon optical camouflage coating of a kind of anti-visible ray and near infrared from detecting and preparation method thereof.Make this coating not only must meet physicochemical property and the spectrum property of coating, and make coating possess excellent ageing resistance, extended the work-ing life of coating, strengthened the defencive function to target compound.
The technical scheme that realizes the object of the invention is: a kind of fluorine carbon optical camouflage coating, and this coating (wt%) composed of the following components:
First component:
Component B:
Isocyanates solidifying agent 75～90%
Thinner 10～25%
In technique scheme, the fluorocarbon resin of described first component is FEVE fluorocarbon resin, comprising: the copolymer resins of trifluorochloroethylene and alkyl vinyl ester, as: rich ZH-04 and JF-2X type are liked in Changshu three; The copolymer resins of tetrafluoroethylene and alkyl vinyl ester (ether), as: Shanghai great Jin GK-510 and G-570 type etc.
In technique scheme, the pigment of described first component is by weight composed of the following components: TiO
2the hybrid pigment of powder 9～13%, yellow ultramarine 11～15%, veridian 70～80% and red pigment 1～3%.Wherein, described TiO
2powder is rutile-type; Yellow ultramarine is one or more mixtures in lead-chrome yellow, strontium yellow or yellow barium chromate; Veridian is that spinel type, filler are added in Cr-Co-TiO2 system, through high temperature sintering, forms; Red pigment is one or more of permanent bordeaux, bright red or iron oxide red.
In technique scheme, the matting agent of described first component is through surface-treated silicon-dioxide flatting silica, as: Grace flatting silica ED50; Degussa flatting silica OK520; The chemistry Z-803 of the celestial nation in Shanghai flatting silica.In addition, superfine talcum powder, surface treated aluminum stearate or calcium stearate etc. all can be used.
In technique scheme, the auxiliary agent of described first component comprises dispersion agent, as BYK110, TEGO710; Anti-settling agent, as BYK410, DC201; Thickening material, as 881 organobentonites, Henkel BW; Flow agent, as BYK323, TEG0410; Defoamer, as classes such as BYK141, TEGO965, dosage is determined according to different varieties.
In technique scheme, the solvent of described first component is mixed solvent, and solvent must by anhydrous level or through removing water treatment, its proportioning can be in Table 1
Table 1 mixed solvent proportioning
In technique scheme, the solidifying agent of described component B is aliphatic polymeric isocyanate class, as Bayer N75, N3390, Mitsui L-75T.
In technique scheme, the solidifying agent thinner of described component B is a kind of in N-BUTYL ACETATE, vinyl acetic monomer, 1-Methoxy-2-propyl acetate or two kinds, and its proportioning is depending on climatope.
In technique scheme, described first, second two component proportionings are 8: 1.
In technique scheme, the preparation method of described fluorine carbon optical camouflage coating, comprises the following steps:
1. the preparation of first component
(1) fluorocarbon resin, pigment, solvent are added to steel basin, under 500～800r/min rotating speed, stir, wherein the add-on of fluorocarbon resin is its total amount 2/3rds;
(2) under stirring at low speed (80～150r/min), add color stuffing etc., under middling speed (500～800r/min), stir evenly to there is no block powder, then enter sand mill and grind, until mill base fineness is less than 30 μ m, obtain mill base;
(3), by remaining fluorocarbon resin, matting agent, auxiliary agent with add letdown tank, under 500～800r/min rotating speed, stir;
(4) mill base is added in letdown tank, under 500～800r/min rotating speed, mix and obtain camouflage paint first component.
2. the preparation of second component
By weighing solidifying agent, thinner adds steel basin, under 500～800r/min rotating speed, stir and get product.
Above-mentioned anti-visible ray and near-infrared camouflage coating, described good weatherability.
The present invention has positive effect:
(1) coating of the present invention is to take fluorocarbon resin as main film forming matter; selected each kind solvent, auxiliary agent and solidifying agent; successfully overcome the defect of fluoro-resin, made camouflage paint not only there is superpower weathering resistance, thermotolerance and erosion resistance, and there is good sticking power and reliable defencive function.
(2) coating selection HDI tripolymer of the present invention is as solidifying agent, this be due to: trimer solidifying agent is than affixture class solidifying agent good weatherability; Higher than diisocyanate biuret curing agent photostabilization; Surface hardness is higher than affixture class and diisocyanate biuret curing agent, and the suitable application as field facility has greatly increased working life of coating.
(3) requirement of coating of the present invention based on optical camouflage, many can not be for this coating for the conventional pigment of matching colors in visible-range, single pigment is often difficult to meet the demands, the present invention selects with the pigment adapting to and adopts the reasonable combination realization of multiple pigment to approach most possibly environmental background look through testing sieve, and making the spectral reflection characteristic of coating consistent with background most possibly, realize target surface is homochromy with spectrum with background.Thereby make coating there is reliable anti-visible ray near infrared from detecting performance.
(4) coating selection mixed solvent of the present invention is reasonably combined, makes solvent not only to resin, have good solubility, and regulates the rate of volatilization of mixed solvent, during application, at the uniform velocity volatilize, and good film-forming property.According to Various Seasonal, adjust formula.Make coating not only there is good physicochemical property, and there is workability easily.
Embodiment
Embodiment 1
The preparation of first component:
Take 330g fluorocarbon resin, 20g rutile TiO 2 powder, 25g medium chrome yellow medium yellow powder, 4g permanent bordeaux powder, 140g marennin powder, 80g N-BUTYL ACETATE and 64g xylene solvent, stir, and is then ground to fineness 30 μ m and becomes below mill base, standby.By remaining 130g fluorocarbon resin, the surface treated silicon-dioxide of 60g, 1g modification dimethyl siloxane, 10g2-hydroxyl-4-oxy-octyl benzophenone, 0.1g dibutyl tin laurate mixes, under agitation ground mill base is slowly added in the container of above-mentioned mixing honest material, stir evenly and be finished product.
The preparation of second component:
Take 900gN3390 solidifying agent, 2g 1-Methoxy-2-propyl acetate and 8g N-BUTYL ACETATE solvent add in still, stir, and are finished product.
Embodiment 2
The preparation of first component:
Take 211g fluorocarbon resin, 23g rutile TiO
2powder, 35.8g strontium yellow and yellow barium chromate powder, 2.6g iron oxide red, 195g marennin powder, 100g 1-Methoxy-2-propyl acetate and 113.5g ethyl acetate solvent, stir, and is then ground to fineness 30 μ m and becomes below mill base, standby.By remaining 105g fluorocarbon resin, the surface treated silicon-dioxide of 51g, 17g2-hydroxyl-4-oxy-octyl benzophenone, 0.1g dibutyl tin laurate mixes, under agitation ground mill base is slowly added in the container of above-mentioned mixing honest material, be finished product.
The preparation of second component:
Take 900gN3390 solidifying agent, 2g 1-Methoxy-2-propyl acetate and 8g N-BUTYL ACETATE solvent add in still, stir, and are finished product.
Embodiment 3
The preparation of first component:
Take 252g fluorocarbon resin, 23.5g rutile TiO
2powder, 27.8g yellow barium chromate powder, the bright red and iron oxide red of 4.3g, 159g marennin powder, 50g 1-Methoxy-2-propyl acetate, 50g ethyl acetate, 113.5g N-BUTYL ACETATE solvent, stir, and is then ground to fineness 30 μ m and becomes below mill base, standby.By remaining 124g fluorocarbon resin, 49.5g surface treated silicon-dioxide, 1.2g modification dimethyl siloxane solution, 0.5g2-hydroxyl-4-oxy-octyl benzophenone, 0.01g dibutyl tin laurate mixes, under agitation ground mill base is slowly added in the container of above-mentioned mixing honest material to the army's of being automotive coatings.
The preparation of second component:
Take 900gN3390 solidifying agent, 2g 1-Methoxy-2-propyl acetate and 8g N-BUTYL ACETATE solvent add in still, stir, and are finished product.
Embodiment 4
The preparation of first component:
Take 250g fluorocarbon resin, 23.5g rutile TiO
2powder, 27.8g yellow barium chromate powder, the bright red and iron oxide red of 4.3g, 159g marennin powder, 46g 1-Methoxy-2-propyl acetate, 80g ethyl acetate, 88.5g N-BUTYL ACETATE solvent, stir, and is then ground to fineness 30 μ m and becomes below mill base, standby.By remaining 124g fluorocarbon resin, 49.5g surface treated silicon-dioxide, 10g propylene glycol, 1.0g modification dimethyl siloxane solution, 0.5g2-hydroxyl-4-oxy-octyl benzophenone, 0.01g dibutyl tin laurate mixes, and under agitation ground mill base is slowly added in the container of above-mentioned mixing honest material to the army's of being automotive coatings (being applicable to extremely frigid zones).
The preparation of second component:
Take 900gN3390 solidifying agent, 2g 1-Methoxy-2-propyl acetate and 8g N-BUTYL ACETATE solvent add in still, stir, and are finished product.
Embodiment 5
The preparation of first component:
Take 255g fluorocarbon resin, 23.5g rutile TiO
2powder, 27.8g yellow barium chromate powder, the bright red and iron oxide red of 4.3g, 159g marennin powder, 50g 1-Methoxy-2-propyl acetate, 20g ethyl acetate, 110g N-BUTYL ACETATE, 40g100# aromatic solvent, stir, then be ground to fineness 30 μ m and become below mill base, standby.By remaining 124g fluorocarbon resin, 49.5g surface treated silicon-dioxide, 1.2g modification dimethyl siloxane solution, 0.5g2-hydroxyl-4-oxy-octyl benzophenone, 0.01g dibutyl tin laurate, 0.3guv531 mixes, and under agitation ground mill base is slowly added in the container of above-mentioned mixing honest material to the army's of being automotive coatings (being applicable to heat area).
The preparation of second component:
Take 900gN3390 solidifying agent, 6g 1-Methoxy-2-propyl acetate and 4g N-BUTYL ACETATE solvent add in still, stir, and are finished product.
Above-described specific embodiment, further describes object of the present invention, technical scheme and beneficial effect.Institute it should be understood that and the foregoing is only specific embodiments of the invention, is not limited to the present invention, within the spirit and principles in the present invention all, any modification of making, is equal to replacement, improvement etc., all should be included in the present invention.
Claims (10)
1. anti-visible ray and a near-infrared camouflage coating, is characterized in that, described coating is first, second two components, and this coating (wt%) composed of the following components:
First component:
Component B:
Solidifying agent
Isocyanates solidifying agent 75～90%
Thinner 10～25%
2. anti-visible ray according to claim 1 and near-infrared camouflage coating, is characterized in that: described fluorocarbon resin is that a kind of or two kinds of spellings in the copolymer resins of trifluorochloroethylene and alkyl vinyl ester and the copolymer resins of tetrafluoroethylene and alkyl vinyl ester (ether) are used.
3. anti-visible ray according to claim 1 and near-infrared camouflage coating, it is characterized in that: described pigment is by weight composed of the following components: Ti02 powder 9～13%, yellow ultramarine 11～15%, the hybrid pigment of veridian 70～80% and red pigment 1～3%.
4. according to the anti-visible ray described in claim 1 or 3 and near-infrared camouflage coating, it is characterized in that: described TiO2 powder is rutile-type, yellow ultramarine is one or more mixtures that are selected from lead-chrome yellow, strontium yellow or yellow barium chromate; Veridian is that spinel type, filler are added in Cr-Co-TiO2 system, and high temperature sintering forms, and red pigment is one or more of permanent bordeaux, bright red or iron oxide red.
5. anti-visible ray according to claim 1 and near-infrared camouflage coating, is characterized in that: described solvent is in mixed solvent 1-Methoxy-2-propyl acetate, ethyl acetate, N-BUTYL ACETATE, aromatic solvent, pimelinketone, dimethylbenzene more than three kinds or three kinds.
6. anti-visible ray according to claim 1 and near-infrared camouflage coating, is characterized in that: described matting agent is superfine silicon dioxide, superfine talcum powder, a kind of in the kinds such as surface-treated aluminum stearate or calcium stearate.
7. anti-visible ray according to claim 1 and near-infrared camouflage coating, it is characterized in that: described auxiliary agent comprises the classes such as dispersion agent, anti-settling agent, thickening material, flow agent, defoamer, select alkyl fatty esters, polyamide wax, dibutyl tin laurate, Octabenzone, polyester modification dimethyl siloxane solution etc. are multiple.
8. according to the anti-visible ray described in claim 1 or 7 and near-infrared camouflage coating, it is characterized in that: described special assistant also comprises frostproofer, softening agent, ultraviolet absorbers etc., select propylene glycol, tridecyl phthalate, dihydroxy benaophenonel, cyanoacrylate etc.
9. anti-visible ray according to claim 1 and near-infrared camouflage coating, is characterized in that: described solidifying agent is HDI tripolymer, TDI tripolymer, IPDI tripolymer, HDI biuret, TDI affixture etc.
10. as claim 1～9, the preparation method of arbitrary described anti-visible ray and near-infrared camouflage coating, comprises the following steps:
The preparation of first component:
(1) fluorocarbon resin, solvent and auxiliary agent are added to steel basin, stir, wherein the add-on of fluorocarbon resin is total amount 2/3rds;
(2) under stirring at low speed, add color stuffing etc., middling speed stirs evenly to there is no block powder, then enters sand mill and grinds, until mill base fineness is less than 30 μ m, obtains mill base;
(3) by remaining fluorocarbon resin, matting agent, auxiliary agent with add letdown tank, stir, be slurry;
(4) mill base is added in letdown tank, mix and obtain anti-visual camouflage coating first component;
(5) can pack after the assay was approved;
The preparation of second component:
Solidifying agent and thinner are added in mixing kettle, mix and obtain optical camouflage coating second component.After the assay was approved, can pack.
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| CN104946035A (en) * | 2015-06-25 | 2015-09-30 | 苏州洋杰电子有限公司 | Insulation fire retardant coating for wire and preparation method thereof |
| CN108395835A (en) * | 2018-02-07 | 2018-08-14 | 湖南航天三丰科工有限公司 | A kind of multiple spectra broadband anticorrosion camouflage coating material |
| CN109439185A (en) * | 2018-11-07 | 2019-03-08 | 成都普瑞斯特新材料有限公司 | Multi-functional camouflage paint and preparation method thereof |
| CN110066603A (en) * | 2019-03-18 | 2019-07-30 | 江苏新创天利新材料发展有限公司 | A kind of water-soluble temporarily type Camouflage painting and preparation method thereof |
| CN111218197A (en) * | 2020-03-05 | 2020-06-02 | 四川智溢实业有限公司 | Hyperspectral stealth coating, preparation method thereof and hyperspectral stealth coating |
| CN111254713A (en) * | 2020-01-20 | 2020-06-09 | 江阴市中强科技有限公司 | High-whiteness high-ultraviolet-reflectivity snow coating and preparation method thereof |
| CN112521815A (en) * | 2020-11-24 | 2021-03-19 | 中昊北方涂料工业研究设计院有限公司 | Invisible light-proof near-infrared camouflage series stealth coating and preparation method thereof |
| CN113248996A (en) * | 2021-04-01 | 2021-08-13 | 湖南航天三丰科工有限公司 | Novel camouflage painting coating material and preparation method thereof |
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| CN104946035A (en) * | 2015-06-25 | 2015-09-30 | 苏州洋杰电子有限公司 | Insulation fire retardant coating for wire and preparation method thereof |
| CN108395835A (en) * | 2018-02-07 | 2018-08-14 | 湖南航天三丰科工有限公司 | A kind of multiple spectra broadband anticorrosion camouflage coating material |
| CN109439185A (en) * | 2018-11-07 | 2019-03-08 | 成都普瑞斯特新材料有限公司 | Multi-functional camouflage paint and preparation method thereof |
| CN109439185B (en) * | 2018-11-07 | 2020-09-04 | 成都普瑞斯特新材料有限公司 | Multifunctional camouflage paint and preparation method thereof |
| CN110066603A (en) * | 2019-03-18 | 2019-07-30 | 江苏新创天利新材料发展有限公司 | A kind of water-soluble temporarily type Camouflage painting and preparation method thereof |
| CN111254713A (en) * | 2020-01-20 | 2020-06-09 | 江阴市中强科技有限公司 | High-whiteness high-ultraviolet-reflectivity snow coating and preparation method thereof |
| CN111254713B (en) * | 2020-01-20 | 2023-03-31 | 薛德兴 | High-whiteness high-ultraviolet-reflectivity snow coating and preparation method thereof |
| CN111218197A (en) * | 2020-03-05 | 2020-06-02 | 四川智溢实业有限公司 | Hyperspectral stealth coating, preparation method thereof and hyperspectral stealth coating |
| CN111218197B (en) * | 2020-03-05 | 2022-01-28 | 四川智溢实业有限公司 | Hyperspectral stealth coating, preparation method thereof and hyperspectral stealth coating |
| CN112521815A (en) * | 2020-11-24 | 2021-03-19 | 中昊北方涂料工业研究设计院有限公司 | Invisible light-proof near-infrared camouflage series stealth coating and preparation method thereof |
| CN113248996A (en) * | 2021-04-01 | 2021-08-13 | 湖南航天三丰科工有限公司 | Novel camouflage painting coating material and preparation method thereof |
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