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Anti-radar coating for air vehicles and preparation method of anti-radar coating

An anti-radar and aircraft technology, applied in anti-corrosion coatings, camouflage coatings, reflection/signal coatings, etc., can solve the problems of inability to resist UHF radar, low electromagnetic radiation absorption rate, low infrared reflectivity, etc. Good frequency, high electromagnetic radiation absorption rate, high infrared reflectivity

Inactive Publication Date: 2017-05-10
江苏悠谷未来科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The invention provides an anti-radar coating for aircraft and a preparation method thereof, which solves technical problems such as low electromagnetic radiation absorption rate, low infrared reflectivity, poor electromagnetic parameters and inability to resist UHF radar in existing aircraft coating materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Step 1: Weigh 100 parts of polyvinyl acetate emulsion, 10 parts of chlorosulfonated polyethylene, 20 parts of epoxy resin, 5 parts of graphite powder, 4 parts of dimethylolpropane, and 1 part of diethanolamine according to the ratio of parts by mass , 2 parts of chromium trioxide, 10 parts of diisocyanate, 8 parts of manganese oxide, 2 parts of indene resin, 10 parts of glass powder, 20 parts of cyclohexanone, 15 parts of butyl acetate, and 0.1 part of phthalocyanine blue.

[0030] Step 2: Put polyvinyl acetate emulsion, chlorosulfonated polyethylene, epoxy resin, diethanolamine and butyl acetate into a reaction kettle with a thermometer and a stirrer, raise the temperature to 50°C, and stir at a speed of 350r / min 45min.

[0031] Step 3: continue to heat up to 70°C, add graphite powder, dimethylolpropane and chromium oxide, and stir for 1 hour;

[0032] Step 4: Add the remaining raw materials, heat up to 120°C, stir at high speed for 50 minutes, cool to 25°C, put it in...

Embodiment 2

[0035] Step 1: Weigh 100 parts of polyvinyl acetate emulsion, 30 parts of chlorosulfonated polyethylene, 40 parts of epoxy resin, 9 parts of graphite powder, 8 parts of dimethylolpropane, and 5 parts of diethanolamine according to the ratio of parts by mass , 6 parts of chromium trioxide, 30 parts of diisocyanate, 12 parts of manganese oxide, 8 parts of indene resin, 30 parts of glass powder, 40 parts of cyclohexanone, 35 parts of butyl acetate, and 2 parts of zinc yellow.

[0036] Step 2: Put polyvinyl acetate emulsion, chlorosulfonated polyethylene, epoxy resin, diethanolamine and butyl acetate into a reaction kettle with a thermometer and a stirrer, raise the temperature to 60°C, and stir at a speed of 550r / min 55min.

[0037] Step 3: Continue to heat up to 90°C, add graphite powder, dimethylolpropane and chromium oxide, and stir for 3 hours;

[0038] Step 4: Add the remaining raw materials, raise the temperature to 160°C, stir at high speed for 60 minutes, cool to 35°C, p...

Embodiment 3

[0041] Step 1: Weigh 100 parts of polyvinyl acetate emulsion, 15 parts of chlorosulfonated polyethylene, 25 parts of epoxy resin, 6 parts of graphite powder, 5 parts of dimethylolpropane, and 2 parts of diethanolamine according to the ratio of parts by mass , 3 parts of chromium trioxide, 15 parts of diisocyanate, 9 parts of manganese oxide, 3 parts of indene resin, 15 parts of glass powder, 25 parts of cyclohexanone, 20 parts of butyl acetate, and 0.5 parts of zinc yellow.

[0042] Step 2: Put polyvinyl acetate emulsion, chlorosulfonated polyethylene, epoxy resin, diethanolamine and butyl acetate into a reaction kettle with a thermometer and a stirrer, raise the temperature to 50°C, and stir at a speed of 350r / min 45min.

[0043] Step 3: continue to heat up to 70°C, add graphite powder, dimethylolpropane and chromium oxide, and stir for 1 hour;

[0044] Step 4: Add the remaining raw materials, heat up to 120°C, stir at high speed for 50 minutes, cool to 25°C, put it into a b...

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Abstract

The invention discloses an anti-radar coating for air vehicles and a preparation method of the anti-radar coating. The anti-radar coating is prepared from the following raw materials: polyvinyl acetate emulsion, chlorosulfonated polyethylene, epoxy resin, graphite powder, dihydroxymethyl propane, diethanol amine, chromium sesquioxide, diisocyanate, manganese oxide, indene resin, glass powder, cyclohexanone, n-butyl acetate and pigments. The anti-radar coating has the beneficial effects that a product can resist ultrahigh frequency; high strength radar detection is realized, electromagnetic parameters and frequency are good, and the adhesive force is level 1; the magnetic loss and the dielectric loss are high, the corrosion resistance is good, the temperature stability is good, the storage is easy, the heat conduction coefficient is 0.01W / m.k-0.014W / m.k; the anti-radar coating can resist the temperature of 100-400 DEG C, does not fall and does not corrode metal, and the coating density is 0.1g / cm<3>-0.5g / cm<3>; and the hardness is 2H-6H, and the anti-radar coating is high in electromagnetic radiation absorptivity and infrared reflectivity, simple to synthesize and low in cost, can be widely produced and can be used for continuously replacing the existing materials.

Description

technical field [0001] The invention relates to the technical field of aircraft stealth coatings, in particular to an aircraft anti-radar coating and a preparation method thereof. Background technique [0002] Stealth paint is a stealth material fixedly coated on the structure of the weapon system. According to its function, it can be divided into radar stealth paint, infrared stealth paint, visible light stealth paint, laser stealth paint, sonar stealth paint and multifunctional stealth paint. Stealth coatings are required to have: wide temperature chemical stability; good frequency band characteristics; small surface density, light weight; high bonding strength, resistance to certain temperature and different environmental changes. [0003] Nanomaterials refer to materials with at least one dimension in the three-dimensional dimension of nanometer size, such as thin films, fibers, ultrafine particles, multilayer films, particle films, and nanocrystalline materials. Due to ...

Claims

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Application Information

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IPC IPC(8): C09D131/04C09D5/30C09D5/32C09D5/33C09D5/08C09D7/12
CPCC09D131/04C08L2205/035C09D5/004C09D5/08C09D5/30C09D5/32C09D7/61C09D7/63C09D7/65
Inventor 王维根
Owner 江苏悠谷未来科技有限公司
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