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Basalt scale corrosion-resistant wave-absorbing paint and preparation method thereof

A technology of wave absorbing paint and basalt, applied in the field of paint and wave absorbing paint, can solve the problems of low mechanical strength of glass flakes, insufficient acid and alkali resistance, insufficient wear resistance, etc., and achieve excellent physical and chemical properties and mechanical properties, anti-corrosion properties. Outstanding performance and excellent performance

Active Publication Date: 2019-02-19
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the flake fillers commonly used in the coating field are mainly glass flakes. Glass flakes have low mechanical strength, insufficient acid and alkali resistance, poor weather resistance, and insufficient wear resistance. The long-term anti-corrosion performance needs to be improved. The scale filler added not only has the advantages of excellent mechanical properties, acid and alkali resistance, weather resistance, long service life, etc., but also needs to have good UV resistance and wave absorption properties, so it is necessary to further develop new anti-corrosion absorbing materials. wave paint

Method used

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  • Basalt scale corrosion-resistant wave-absorbing paint and preparation method thereof
  • Basalt scale corrosion-resistant wave-absorbing paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Mix basalt flakes, flaky sendust powder and polyurethane resin at a mass ratio of 0.2:0.4:1, stir thoroughly for 10 minutes, and add diluent (ethyl acetate: butyl acetate volume ratio =1:1 composition), followed by mechanical stirring at a speed of 480 rpm for 30 minutes, and the resulting mixed solution was placed in an ultrasonic oscillator for 30 minutes to obtain a uniformly mixed solution. Then add the polyurethane curing agent according to the mass ratio of 0.3 to the polyurethane resin, and then repeat the above mechanical stirring and ultrasonic vibration for 30 minutes each to obtain the wave-absorbing coating. Such as figure 1 As shown, the added basalt scales are flakes of 10 microns to 200 microns, with a thickness of 0.8 microns to 6 microns.

[0021] The prepared coating was injected into the prepared mold, coated on a 200 mm × 200 mm Al plate, and the thickness of the coating was controlled to be 1.5 mm through the mold. Finally, it is naturally cured a...

Embodiment 2

[0024] Mix basalt flakes, flaky sendust powder and polyurethane resin at a mass ratio of 0.4:0.4:1, stir thoroughly for 20 minutes, and add diluent (ethyl acetate: butyl acetate volume ratio =1:1 composition), followed by mechanical stirring at a speed of 480 rpm for 60 minutes, and the resulting mixed solution was placed in an ultrasonic oscillator for 30 minutes to obtain a uniformly mixed solution. Then add the polyurethane curing agent according to the mass ratio of 0.3 to the polyurethane resin, and then repeat the above mechanical stirring and ultrasonic vibration for 30 minutes each to obtain the wave-absorbing coating.

[0025] The prepared coating was injected into the prepared mold, coated on a 200 mm × 200 mm Al plate, and the thickness of the coating was controlled to be 1.5 mm through the mold. Finally, it is naturally cured and formed at room temperature. After curing and formed, the sample is demoulded for trimming and performance testing.

[0026] The electrom...

Embodiment 3

[0028] Mix basalt flakes, flaky sendust powder and epoxy resin at a mass ratio of 0.5:0.5:1, stir thoroughly for 40 minutes, and add diluent (n-butanol:xylene volume Ratio = 1:1 composition), followed by mechanical stirring at a speed of 500 rpm for 40 minutes, and the resulting mixed solution was placed in an ultrasonic oscillator for 30 minutes to obtain a uniformly mixed solution. Then, after adding the curing agent hexamethylenediamine in a ratio of 0.5 to the mass ratio of the epoxy resin, repeat the above mechanical stirring and ultrasonic vibration for 20 minutes each to obtain the wave-absorbing coating.

[0029] The prepared coating was injected into the prepared mold, coated on a 200 mm × 200 mm Al plate, and the thickness of the coating was controlled to be 1.5 mm through the mold. Finally, it is naturally cured and formed at room temperature. After curing and formed, the sample is demoulded for trimming and performance testing.

[0030]The electromagnetic wave abs...

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Abstract

The invention discloses basalt scale corrosion-resistant wave-absorbing paint and a preparation method thereof and belongs to the technical field of paint. The corrosion-resistant wave-absorbing paintcomprises resin, a diluent, sheet iron, silicon and aluminum powder, basalt scale and a curing agent. The paint is prepared by taking single sheet iron, silicon and aluminum powder wave-absorbing paint as a base and adding the basalt scale accounting for 10-60% of mass of the resin. Wave-absorbing performance of a coating prepared by the paint is obviously improved when compared with that of a single sheet iron, silicon and aluminum coating, absorbing peak value of the coating is lowered, and absorbing frequency band is remarkably expanded. On the other side, due to shielding characteristicsof the basalt scale, the coating has good corrosion resistance. The preparation method is simple in operation, and the paint is low in cost, stable in performance and high in actual application value.

Description

technical field [0001] The invention belongs to the technical field of coatings, specifically relates to the technical field of wave-absorbing coatings, in particular to an anti-corrosion wave-absorbing coating added with basalt scales and a preparation method thereof. Background technique [0002] With the in-depth research on electromagnetic wave absorbing materials and the demand for practical applications, high-performance absorbing materials such as high absorption performance, wide frequency band, light weight, and small size have become the current research focus. Absorbing coating materials have received more and more attention due to their excellent comprehensive properties. At present, most studies still use a single wave-absorbing powder doped in the matrix to prepare wave-absorbing coatings. Flake sendust powder is widely used in the preparation of wave-absorbing coatings due to its superior magnetic loss properties, but the coating prepared by this single piece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D163/00C09D5/32C09D5/08
CPCC08K2201/014C09D5/08C09D5/32C09D163/00C09D175/04C08K3/34
Inventor 吴俊升段玉平李晓刚王怡
Owner UNIV OF SCI & TECH BEIJING
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