Radar invisible coating

A radar stealth and coating technology, which is applied in the direction of epoxy resin coating, polyurea/polyurethane coating, coating, etc., can solve the problems of high magnetic loss or dielectric loss, limited application, high density, etc., and achieve good absorption performance, Good corrosion resistance, strong adhesion effect

Inactive Publication Date: 2009-05-27
崔悦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] ② Higher magnetic loss or dielectric loss
[0016] Traditional metal particle and ferrite particle absorbers have the disadvantage of high density. The coating coated with metal particle and ferrite particle absorber generally increases the weight by 5kg per square meter of coating area, which seriously limits the Application of this radar stealth coating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The average particle size is 2.5μm, and the bulk density is 2.1g / cm 3 38g of hollow glass microspheres, 38.5g of iron powder with an average particle diameter of 100nm coated on the surface of the microspheres. Weigh 23g of E44 epoxy resin solution and 23g of curing agent solution. Weigh 50 g of the mixed solvent, and weigh conventional amounts of additives.

[0040] Add all the weighed raw materials into the batching tank, disperse, grind and filter to obtain the main agent A of the paint, add the curing agent B and mix evenly to obtain the radar wave absorbing paint. The filler volume filling rate of the paint is 50%, and the dry coating density of the paint is 2.16g / cm 3 .

Embodiment 2

[0042] The average particle size is 5μm, and the bulk density is 1.5g / cm 3 57.5 g of hollow glass microspheres, 3.7 g of iron powder with an average particle diameter of 100 nm were coated on the surface of the microspheres. Weigh 38.8g of E44 epoxy resin solution and 38.8g of curing agent solution. Weigh 50 g of the mixed solvent, and weigh conventional amounts of additives.

[0043] Add all the weighed raw materials into the batching tank, disperse, grind and filter to obtain the main agent A of the paint, add the curing agent B and mix evenly to obtain the radar wave absorbing paint. The filler volume filling rate of the paint is 50%, and the dry coating density of the paint is 1.29g / cm 3 .

Embodiment 3

[0045] The average particle size is 5μm, and the bulk density is 1.5g / cm 3 41.5 g of hollow glass microspheres, and 27.5 g of iron powder with an average particle diameter of 100 nm is coated on the surface of the microspheres. Weigh 31g of E44 epoxy resin solution and 31g of curing agent solution. Weigh 50 g of the mixed solvent, and weigh conventional amounts of additives.

[0046] Add all the weighed raw materials into the batching tank, disperse, grind and filter to obtain the main agent A of the paint, add the curing agent B and mix evenly to obtain the radar wave absorbing paint. The filler volume filling rate of the paint is 50%, and the dry coating density of the paint is 1.60g / cm 3 .

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PUM

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Abstract

The invention discloses a radar wave stealth coating with good radar wave-absorbing performance, light mass and thermal insulation function, and a production method thereof. The coating comprises a film-forming substance, an absorbent, an external additive and a solvent. The coating is characterized in that the radar wave absorbent is hollow microspheres covered with magnetic conductive metal films. The coating absorbent has good performance, light mass and good thermal insulation. The components by weight percentage comprise the following: 16.25 to 74.40 percent of film forming substance, 25.60 to 83.80 percent of absorbent, 1 to 20 percent of additive, and 10 to 150 percent of solvent. The coating is applied to the field of radar wave absorption, for example, the coating is used for various weapons, camouflage nets and, protection suits and so on.

Description

technical field [0001] The invention belongs to the field of electromagnetic wave absorbing materials, in particular to a radar wave stealth paint with good radar absorbing performance, light weight and heat insulation function. Background technique [0002] The reconnaissance of modern warfare is to implement multi-spectrum reconnaissance. Compared with visible light, near-infrared and thermal infrared reconnaissance, radar reconnaissance has all-weather performance, long action distance, large search range and certain penetration in day and night and complex weather conditions. With advantages such as penetration capability, the status of radar is increasing day by day in multi-spectrum reconnaissance. In addition, because radar is also widely used in guidance, fire control, automatic search, etc., it poses a serious threat to the survivability of various weapons and military targets. Therefore, the stealth performance of target anti-radar reconnaissance is also very impor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D175/04C09D123/34C09D5/00C09D7/12
Inventor 崔悦
Owner 崔悦
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