CN102977726A - Novel low-infrared-emissivity corrosion-resistant coating - Google Patents
Novel low-infrared-emissivity corrosion-resistant coating Download PDFInfo
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- CN102977726A CN102977726A CN2012104455083A CN201210445508A CN102977726A CN 102977726 A CN102977726 A CN 102977726A CN 2012104455083 A CN2012104455083 A CN 2012104455083A CN 201210445508 A CN201210445508 A CN 201210445508A CN 102977726 A CN102977726 A CN 102977726A
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- 238000000576 coating method Methods 0.000 title claims abstract description 34
- 239000011248 coating agent Substances 0.000 title claims abstract description 32
- 230000007797 corrosion Effects 0.000 title claims abstract description 19
- 238000005260 corrosion Methods 0.000 title claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 36
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims description 17
- 229920001971 elastomer Polymers 0.000 claims description 10
- 239000005060 rubber Substances 0.000 claims description 10
- 229920001897 terpolymer Polymers 0.000 claims description 10
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 8
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 12
- 238000007667 floating Methods 0.000 abstract description 3
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 abstract description 2
- 229920002943 EPDM rubber Polymers 0.000 abstract 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 239000008096 xylene Substances 0.000 abstract 1
- 239000010949 copper Substances 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 8
- 239000000945 filler Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
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- 239000012530 fluid Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000035899 viability Effects 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
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- 230000003204 osmotic effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
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- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
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- 229910052725 zinc Inorganic materials 0.000 description 1
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Abstract
The invention discloses a novel low-infrared-emissivity corrosion-resistant coating comprising the components of, by weight, 80 parts of polyurethane, 120 parts of maleic-anhydride-modified ethylene propylene diene monomer (EPDM) rubber, 0-50 parts of floating flake-shaped Al powder, 0-50 parts of floating flake-shaped Cu powder, 10-20 parts of a silane coupling agent KH550, 10-20 parts of xylene, and 4-8 parts of cyclohexane. The prepared coating has low infrared emissivity, and the corrosion resistance of the modified coating is greatly improved. The method has good application prospect.
Description
Technical field
The present invention relates to a kind of speciality coating, particularly a kind of novel low infrared emissivity and the good coating of corrosion resistance nature.
Background technology
Since war, precision guided weapon and guidance technology have been brought into play very important effect in all previous war from 20 century 70 precision guided weapon first Application.And along with the continuous variation of war situation, progressively the showing especially of IT-based warfare, the characteristics of precision guided weapon make it become the emphasis of various countries' military developments.And shown especially its superiority as the infrared acquisition attacking weapon of important member in the precision guided weapon family: have high precision, highly sensitive, high resolving power, high frame frequency (staring infrared), strong interference immunity, can automatically identify the critical position of target even target, but the characteristics such as work double tides have been widely used in seeker and the dexterous ammunition at present.Wherein particularly swift and violent with the development of airborne Infrared Search and Track System (lRST), Air-borne Forward-looking infrared (FLIR), guided missile infrared seeker.According to statistics, IRST can reach 185Km to the forward detection distance of air fighter, and is close with the operating distance of airborne radar; FLIR reaches 68～117Km to the decipherment distance of target; The engagement range of Infrared Imaging Seeker reaches about 20Km.The infrared eye thermal imaging is equipped with various precision guided weapons in the rapid osmotic of military field, as long as so that military target is found, basically just can be destroyed, serious threat is to the existence of military target.Therefore, fall as the extensive concern that the infrared stealth technology of purpose is subject to the various countries military to reduce and to weaken enemy's infrared detector usefulness.
Stealthy technique claims again target signature control or low detectable technology, and it mainly is by changing or suppress the signal characteristic of target, making it be difficult to be found! Identification! The technology battle array of following the tracks of and attacking.Development along with modern military Detection Techniques and guidance technology, the importance of stealthy technique in modernized information war grows with each passing day, become the gordian technique that improves weaponry viability, penetration ability and fighting efficiency, day by day cause the generally attention of countries in the world.In the U.S., stealthy technique is listed in one of national defence three large hi-techs (two are Star Wars Program and nuclear technique in addition).The fields such as stealthy technique comprises radar invisible, infrared stealth, laser camouflage, visible light is stealthy, sound is stealthy, magnetic is stealthy, but the detection that faces at present threat is still fallen as main take the radar and infrared system.To the research of radar invisible, carry out the time early, theory is also ripe.By contrast, infrared stealth technology will be slowly many, much more difficult, relevant report is also less both at home and abroad.Therefore infrared stealth technology has caused the attention of various countries as the important factor that improves military installations and weaponry viability and fighting capacity.
The essence of infrared stealth weakens radiation characteristics such as energy, frequency range, thermal source and directions by various technical measures exactly, reduce the ir radiation difference of target and background, make detector not receive enough energy, be found the probability identifying and follow the tracks of thereby reduce target.
Summary of the invention
The objective of the invention is for the deficiencies in the prior art, propose a kind of low infrared emissivity that has, and corrosion resistance nature there is good coating simultaneously.
In order to realize the foregoing invention purpose, the present invention by the following technical solutions: a kind of novel low infrared emissivity corrosion resistant coating, the unit serving meter comprises following component by weight: 80 parts of urethane; 120 parts of maleic anhydride modified terpolymer EP rubbers; 0～50 part in floatability sheet Al powder; 0～50 part in floatability sheet Cu powder; 10～20 parts of Silane coupling agent KH550s; 10～20 parts of dimethylbenzene; 4～8 parts of hexanaphthenes.
The particle diameter of described floatability sheet Al powder is at 20～30 μ m.
The particle diameter of described floatability sheet Cu powder is at 20～50 μ m.
Infrared coating is usually directed to the filler particles of stochastic distribution in certain matrix (tackiness agent), and these filler particles play the thermal-radiating effect of selectivity scattering substrate.Quantity of radiant energy in the coating can be regarded as by hertzian wave or photon and carried, and corresponding with it has two kinds of theories usually for the Radiation Transfer Problems in the coating: a kind of is the multiple-scattering theory of being set out by the Maxwell equation group; Another kind is exactly transmission theory.The latter adopts the second-rate theory of Kubelka-Munk to set up the radiative transfer model of infrared radiating coating, the decisions such as the size of particle, shape, distribution density in theory is derived the chemical composition of specific refractory power, material of the spectral emittance obtained infrared coating and coatingsurface reflectivity, coating and microtexture, material.The low infrared emissivity coating must possess high conductivity, high-reflectivity, high scattering coefficient and low uptake factor.
From Kirchhoff's law as can be known, the reflectivity of opaque body is higher, and emittance is just lower.Therefore metal-powder generally belongs to opaque body, has the emittance of metal-powder of high reflectance generally all lower, is the first-selected functional stuffing of thermal infrared frequency range.Applicable metal or alloy has Al, Zn, Sn, Au, bronze etc., but actual selecting focuses mostly in excellent property, Al cheap and easy to get.
A kind of form of filler is floated, after referring to filler and fluid medium mixing, can swim on the fluid medium surface, forms a kind of ground, overlapped metal level of being parallel to after the brushing.This structure has high compactness, therefore is considered to possess the requirement that forms low absorber coatings.
The low infrared emissivity coating is to be formed by the filler of extraordinary form (being equivalent to the absorption coating absorption agent) and tackiness agent, because low infrared emissivity coating own characteristic, namely greater than 50% high packed space ratio, make filler and tackiness agent consistency poor, cause can raising with the corrosive medium effect in the corrosion process floating coat emittance that stands salt spray resistance, the infrared stealth effect worsens even lost efficacy.Aircraft be unable to do without the severe environment such as acid rain, dense fog in the life-time service process, therefore, research and solve the corrosion resistant method of low infrared emissivity coating, obtains significant at the stable low emissivity coatings of corrosive environment performance.
Silane coupling agent KH550 is a kind of compound that can improve interface interaction between polymkeric substance and the filler.The one end contains the group (oxyethyl group) that is easy to be hydrolyzed, can generate covalent linkage with hydroxyl or the water reaction of metallic surface, the other end contains amino, can pass through interaction of hydrogen bond with polymkeric substance, strengthen the boundary strength of copper powder and polymkeric substance, from improving the over-all properties of matrix material.
Terpolymer EP rubber has good infrared transparent, and the terpolymer EP rubber corrosion resistance nature is good, extremely is suitable for the raw material as low infrared emitting paint.
Advantage of the present invention: the coating infrared emittance that makes is low, and greatly improves through the coating corrosion resistance nature of modification, has very much application prospect.
Embodiment
The present invention is further illustrated below by embodiment.
Embodiment one:
80 parts of urethane; 120 parts of maleic anhydride modified terpolymer EP rubbers; 30 parts in floatability sheet Al powder; 20 parts in floatability sheet Cu powder; 20 parts of Silane coupling agent KH550s; 20 parts of dimethylbenzene; 6 parts of hexanaphthenes.
The particle diameter of floatability sheet Al powder is at 20～30 μ m, and the particle diameter of floatability sheet Cu powder is at 20～50 μ m.
Embodiment two:
80 parts of urethane; 120 parts of maleic anhydride modified terpolymer EP rubbers; 0 part in floatability sheet Al powder; 50 parts in floatability sheet Cu powder; 10 parts of Silane coupling agent KH550s; 10 parts of dimethylbenzene; 4 parts of hexanaphthenes.
The particle diameter of floatability sheet Al powder is at 20～30 μ m, and the particle diameter of floatability sheet Cu powder is at 20～50 μ m.
Embodiment three:
80 parts of urethane; 120 parts of maleic anhydride modified terpolymer EP rubbers; 50 parts in floatability sheet Al powder; 0 part in floatability sheet Cu powder; 10 parts of Silane coupling agent KH550s; 10 parts of dimethylbenzene; 8 parts of hexanaphthenes.
The particle diameter of floatability sheet Al powder is at 20～30 μ m, and the particle diameter of floatability sheet Cu powder is at 20～50 μ m.
Embodiment four:
80 parts of urethane; 120 parts of maleic anhydride modified terpolymer EP rubbers; 20 parts in floatability sheet Al powder; 40 parts in floatability sheet Cu powder; 12 parts of Silane coupling agent KH550s; 20 parts of dimethylbenzene; 4 parts of hexanaphthenes.
The particle diameter of floatability sheet Al powder is at 20～30 μ m, and the particle diameter of floatability sheet Cu powder is at 20～50 μ m.
Embodiment five:
80 parts of urethane; 120 parts of maleic anhydride modified terpolymer EP rubbers; 10 parts in floatability sheet Al powder; 50 parts in floatability sheet Cu powder; 16 parts of Silane coupling agent KH550s; 20 parts of dimethylbenzene; 4 parts of hexanaphthenes.
The particle diameter of floatability sheet Al powder is at 20～30 μ m, and the particle diameter of floatability sheet Cu powder is at 20～50 μ m.
Preparation method according to the low infrared emissivity corrosion-resistant finishes of above prescription preparation may further comprise the steps:
(1) prepares raw material by following parts by weight;
(2) add hexanaphthene in the mixture with floatability sheet Al powder and floatability sheet Cu powder, supersound process 30min, drip Silane coupling agent KH550 again after, 40 ℃ of lower supersound process 30min;
(3) urethane and maleic anhydride modified terpolymer EP rubber are dissolved in the dimethylbenzene, behind adding floatability sheet Al powder and the floatability sheet Cu powder solution, stir 1h, mixture is coated on article surface.
Applying coating on substrate, is put into drying baker and dried 5h, and in High Temperature Furnaces Heating Apparatus, carry out Performance Detection behind the hot setting 3h.Adopt ENS302 type infrared emittance tester to record coating in the infrared emittance of 5～14 μ m; Corrosive nature adopts electrochemical method to test, and test result shows that coating is 0.0893 in the infrared emittance of 5～14 μ m, makes the emittance of coating far below existing low infrared emissivity coating.
Electrochemistry Tafel curve can directly be estimated the complexity of coating corrosion, and corrosion potential is-0.496V that corrosion current is 1,239 * 10
-7Illustrate that coating has excellent corrosion resistance nature.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (3)
1. a novel low infrared emissivity corrosion resistant coating is characterized in that the unit serving meter comprises following component by weight: 80 parts of urethane; 120 parts of maleic anhydride modified terpolymer EP rubbers; 0～50 part in floatability sheet Al powder; 0～50 part in floatability sheet Cu powder; 10～20 parts of Silane coupling agent KH550s; 10～20 parts of dimethylbenzene; 4～8 parts of hexanaphthenes.
2. novel low infrared emissivity corrosion resistant coating according to claim 1, it is characterized in that: the particle diameter of described floatability sheet Al powder is at 20～30 μ m.
3. novel low infrared emissivity corrosion resistant coating according to claim 1, it is characterized in that: the particle diameter of described floatability sheet Cu powder is at 20～50 μ m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210445508.3A CN102977726B (en) | 2012-11-09 | 2012-11-09 | Low infrared emissivity corrosion resistant coating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210445508.3A CN102977726B (en) | 2012-11-09 | 2012-11-09 | Low infrared emissivity corrosion resistant coating |
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| CN102977726A true CN102977726A (en) | 2013-03-20 |
| CN102977726B CN102977726B (en) | 2016-05-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106634136A (en) * | 2016-11-23 | 2017-05-10 | 西南科技大学 | Preparation method of black low-infrared-emissivity material |
| CN106634069A (en) * | 2016-11-23 | 2017-05-10 | 西南科技大学 | Preparation method of brown material with low infrared emitting ability |
| CN106614196A (en) * | 2016-12-15 | 2017-05-10 | 浙江海洋大学 | Purse net double-layer big-small net mesh safety redundancy enhancing technology |
| CN109536133A (en) * | 2018-12-21 | 2019-03-29 | 北京圣盟科技有限公司 | A kind of graphene-based infrared stealth composite material and preparation method |
-
2012
- 2012-11-09 CN CN201210445508.3A patent/CN102977726B/en active Active
Non-Patent Citations (2)
| Title |
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| 余慧娟等: "8-14μm波段低发射率涂料的制备与优化研究", 《兵器材料科学与工程》 * |
| 邵春明: "低红外发射率涂层（LIREC）的组成结构与性能研究", 《中国博士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106634136A (en) * | 2016-11-23 | 2017-05-10 | 西南科技大学 | Preparation method of black low-infrared-emissivity material |
| CN106634069A (en) * | 2016-11-23 | 2017-05-10 | 西南科技大学 | Preparation method of brown material with low infrared emitting ability |
| CN106614196A (en) * | 2016-12-15 | 2017-05-10 | 浙江海洋大学 | Purse net double-layer big-small net mesh safety redundancy enhancing technology |
| CN109536133A (en) * | 2018-12-21 | 2019-03-29 | 北京圣盟科技有限公司 | A kind of graphene-based infrared stealth composite material and preparation method |
| CN109536133B (en) * | 2018-12-21 | 2021-10-01 | 北京圣盟科技有限公司 | Graphene-based infrared stealth composite material and preparation method thereof |
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| CN102977726B (en) | 2016-05-04 |
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Inventor after: Qiu Caijun Inventor before: Gao Runbao |
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Effective date of registration: 20160329 Address after: Xingqing District of Yinchuan city the Ningxia Hui Autonomous Region 750000 Xiang Ning No. 7 No. 1 Building No. 6 operating room Applicant after: YINCHUAN BOJU INDUSTRIAL PRODUCT DESIGN CO., LTD. Address before: 210000, 5 new model street, Gulou District, Jiangsu, Nanjing Applicant before: Gao Runbao |
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Effective date of registration: 20171207 Address after: 225500 Yangzhou Road, Jiangyan Economic Development Zone, Taizhou, Jiangsu Province, No. 900 Patentee after: Runtai chemical Limited by Share Ltd. Address before: Xingqing District of Yinchuan city the Ningxia Hui Autonomous Region 750000 Xiang Ning No. 7 No. 1 Building No. 6 operating room Patentee before: YINCHUAN BOJU INDUSTRIAL PRODUCT DESIGN CO., LTD. |
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Address after: No.17, Wenhua West Road, Taixing Economic Development Zone, Taizhou City, Jiangsu Province 225500 Patentee after: Runtai New Material Co.,Ltd. Address before: 225500 no.900 Yangzhou Road, Jiangyan Economic Development Zone, Taizhou City, Jiangsu Province Patentee before: RUNTAI CHEMICAL Co.,Ltd. |