CN109897455A - A kind of antiradar coatings preparation method - Google Patents

Abstract

The present invention relates to a kind of antiradar coatings, it is characterized by: including 20-30 parts of nickel-zinc ferrite by mass fraction, 5-10 parts of conductive acetylene carbon black powder, 150-200 parts of deionized water, the calcium hexaluminate of apparent porosity 45%/15-30 parts of spinelle composite diphase material, 15-25 parts of graphene, 10-15 parts of solvent-free silicone resin, 8-12 parts of nano-titanium dioxide, 3, 5, 6- trimethyl -2, double 5-10 parts of the isobutyrates of 4- pentanediol, polyether polyol -5-10 parts of aliphatic isocyanates addition product, 30-40 parts of carbon fiber, conductive zinc powder 5-15 parts, 200-300 parts of polychloroprene latex macromolecule complex.

Description

A kind of antiradar coatings preparation method

Technical field

The present invention relates to a kind of antiradar coatings, specifically a kind of antiradar coatings and preparation method thereof.

Background technique

With Development of Modern Science, the electromagnetic pollution of electronic and electrical equipment is more and more serious, has been increasingly becoming global range The fourth-largest public hazards.The problem of how effectively protecting electromagnetic radiation and interference (EMI) becomes increasingly important, it has also become global section The important topic of skill circle.

Summary of the invention

The present invention provides a kind of energy effective protection electromagnetic pollutions, absorb the antiradar coatings of common wave band electromagnetic wave.

The technical solution adopted by the present invention is that: a kind of antiradar coatings, it is characterised in that: it include Ni Zn ferrimagnet by mass fraction 20-30 parts of body, 5-10 parts of conductive acetylene carbon black powder, 150-200 parts of deionized water, apparent porosity 45% calcium hexaluminate/spinelle 15-30 parts of composite diphase material, 15-25 parts of graphene, 10-15 parts of solvent-free silicone resin, 8-12 parts of nano-titanium dioxide, 3,5,6- tri- Methyl -2,4-PD double 5-10 parts of isobutyrates, polyether polyol -5-10 parts of aliphatic isocyanates addition product, carbon fiber 30-40 parts, conductive 5-15 parts of zinc powder, 200-300 parts of polychloroprene latex macromolecule complex.

The conductive acetylene carbon black powder mesh number 200-400 mesh.

The polychloroprene latex macromolecule complex is that ALX-600 polychloroprene latex is mixed with GPE defoaming agent 200:1 in mass ratio It prepares.

A kind of preparation method of antiradar coatings, steps are as follows:

1) by 5-10 parts of 20-30 parts of nickel-zinc ferrite, conductive acetylene carbon black powder addition deionized waters, ultrasonic disperse 1-2 hours, Dispersion liquid is made；

2) in the dispersion liquid made from step 1), calcium hexaluminate/15-30 parts of spinelle composite diphase material of addition apparent porosity 45%, It 15-25 parts of graphene, is put into electric blender and at the uniform velocity stirs 8-15min, 10-15 parts of solvent-free silicone resin, nano-silica is added Change titanium 8-12 parts, 3,5,6- trimethyl -2,4-PD double 5-10 parts of isobutyrates, polyether polyol-aliphatic isocyanates 5-10 parts of addition product, pH=7-9 is adjusted with ammonium hydroxide later, obtained solution is stirred 0.5 hour under 80-90 DEG C of water-bath；

3) 30-40 parts of carbon fiber, conductive 5-15 parts of zinc powder stirring 0.5-1 hours are added, stands 3-5 hours；

4) above-mentioned standing solution is added dropwise to 200-300 parts of polychloroprene latex macromolecule complex, dripped within 0.5 hour, stirring is anti- Answer 1-2 hours antiradar coatings.

This antiradar coatings coating is fine and close, and absorbing property greatly improves.The product has lotus root shape section, hollow fiber-shaped, gathers around There is porous structure, is conducive to electromagnetic wave absorption.

The product imparts excellent electromagnetic wave absorption performance, and imparts excellent physical mechanical property, corrosion-resistant, Hydrolysis, ageing-resistant, light-weight, the features such as intensity is high.

Specific embodiment

The invention will be further described in conjunction with the embodiments under.

Embodiment 1

A kind of antiradar coatings, it is characterised in that: by mass fraction include 20 parts of nickel-zinc ferrite, 5 parts of conductive acetylene carbon black powder, go Calcium hexaluminate/15 parts of spinelle composite diphase material, 15 parts of the graphene, solvent-free silicone resin of 150 parts of ionized water, apparent porosity 45% 10 parts, 8 parts of nano-titanium dioxide, 3,5,6- trimethyl -2,4-PD double 5 parts of isobutyrates, polyether polyol-aliphatic 5 parts of isocyanate addition product, 30 parts of carbon fiber, conductive 5 parts of zinc powder, 200 parts of polychloroprene latex macromolecule complex.

200 mesh of conductive acetylene carbon black powder mesh number.

The polychloroprene latex macromolecule complex is that ALX-600 polychloroprene latex is mixed with GPE defoaming agent 200:1 in mass ratio It prepares.

A kind of preparation method of antiradar coatings, steps are as follows:

1) by 5 parts of 20 parts of nickel-zinc ferrite, conductive acetylene carbon black powder addition deionized waters, ultrasonic disperse 1 hour, dispersion is made Liquid；

2) in the dispersion liquid made from step 1), calcium hexaluminate/15 parts of spinelle composite diphase material, stone of apparent porosity 45% is added 15 parts of black alkene is put into electric blender and at the uniform velocity stirs 8min, 10 parts of solvent-free silicone resin, 8 parts of nano-titanium dioxide, 3 is added, 5,6- trimethyl -2,4- pentanediols double 5 parts of isobutyrates, polyether polyol -5 parts of aliphatic isocyanates addition product, Zhi Houyong Ammonium hydroxide adjusts pH=7, and obtained solution is stirred 0.5 hour under 80 DEG C of water-baths；

3) 30 parts of carbon fiber is added, 5 parts of conductive zinc powder stirs 0.5 hour, standing 3 hours；

4) above-mentioned standing solution is added dropwise to 200 parts of polychloroprene latex macromolecule complex, drips within 0.5 hour, it is small is stirred to react 1 When antiradar coatings.

The coating is tested under the conditions of vertical incidence, and emulation maximum absorption efficiency is 99.3%, through testing obtained highest Absorption efficiency reaches 97.7%.

Embodiment 2

A kind of antiradar coatings, it is characterised in that: by mass fraction include 25 parts of nickel-zinc ferrite, 7 parts of conductive acetylene carbon black powder, go Calcium hexaluminate/20 parts of spinelle composite diphase material, 20 parts of the graphene, solvent-free silicone resin of 180 parts of ionized water, apparent porosity 45% 12 parts, 10 parts of nano-titanium dioxide, 3,5,6- trimethyl -2,4-PD double 7 parts of isobutyrates, polyether polyol-aliphatic 7 parts of isocyanate addition product, 35 parts of carbon fiber, conductive 10 parts of zinc powder, 250 parts of polychloroprene latex macromolecule complex.

300 mesh of conductive acetylene carbon black powder mesh number.

The polychloroprene latex macromolecule complex is that ALX-600 polychloroprene latex is mixed with GPE defoaming agent 200:1 in mass ratio It prepares.

A kind of preparation method of antiradar coatings, steps are as follows:

1) it by 7 parts of 25 parts of nickel-zinc ferrite, conductive acetylene carbon black powder addition deionized waters, ultrasonic disperse 1.5 hours, is made and divides Dispersion liquid；

2) in the dispersion liquid made from step 1), calcium hexaluminate/20 parts of spinelle composite diphase material, stone of apparent porosity 45% is added 20 parts of black alkene is put into electric blender and at the uniform velocity stirs 8-15min, 12 parts of solvent-free silicone resin, nano-titanium dioxide 10 is added Part, 3,5,6- trimethyl -2,4- pentanediols double 7 parts of isobutyrates, polyether polyol -7 parts of aliphatic isocyanates addition product, PH=7 is adjusted with ammonium hydroxide later, obtained solution is stirred 0.5 hour under 85 DEG C of water-baths；

3) 35 parts of carbon fiber is added, 5-15 parts of conductive zinc powder stirs 0.7 hour, standing 4 hours；

4) above-mentioned standing solution is added dropwise to 250 parts of polychloroprene latex macromolecule complex, drips within 0.5 hour, is stirred to react 1.5 The antiradar coatings of hour.

The coating is tested under the conditions of vertical incidence, and emulation maximum absorption efficiency is 99.7%, through testing obtained highest Absorption efficiency reaches 98.2%.

Embodiment 3

A kind of antiradar coatings, it is characterised in that: by mass fraction include 30 parts of nickel-zinc ferrite, 10 parts of conductive acetylene carbon black powder, Calcium hexaluminate/30 parts of spinelle composite diphase material, 25 parts of the graphene, solvent-free silicone tree of 200 parts of deionized water, apparent porosity 45% 15 parts of rouge, 12 parts of nano-titanium dioxide, 3,5,6- trimethyl -2,4-PD double 10 parts of isobutyrates, polyether polyol-rouge 10 parts of fat race isocyanate addition product, 40 parts of carbon fiber, conductive 15 parts of zinc powder, 300 parts of polychloroprene latex macromolecule complex.

400 mesh of conductive acetylene carbon black powder mesh number.

The polychloroprene latex macromolecule complex is that ALX-600 polychloroprene latex is mixed with GPE defoaming agent 200:1 in mass ratio It prepares.

A kind of preparation method of antiradar coatings, steps are as follows:

1) it by 10 parts of 30 parts of nickel-zinc ferrite, conductive acetylene carbon black powder addition deionized waters, ultrasonic disperse 2 hours, is made and divides Dispersion liquid；

2) in the dispersion liquid made from step 1), calcium hexaluminate/30 parts of spinelle composite diphase material, stone of apparent porosity 45% is added 25 parts of black alkene is put into electric blender and at the uniform velocity stirs 15min, be added 15 parts of solvent-free silicone resin, 12 parts of nano-titanium dioxide, 3,5,6- trimethyl -2,4- pentanediols double 10 parts of isobutyrates, polyether polyol -10 parts of aliphatic isocyanates addition product, it PH=9 is adjusted with ammonium hydroxide afterwards, obtained solution is stirred 0.5 hour under 90 DEG C of water-baths；

3) 40 parts of carbon fiber is added, 15 parts of conductive zinc powder stirs 1 hour, standing 5 hours；

4) above-mentioned standing solution is added dropwise to 300 parts of polychloroprene latex macromolecule complex, drips within 0.5 hour, it is small is stirred to react 2 When antiradar coatings.

The coating is tested under the conditions of vertical incidence, and emulation maximum absorption efficiency is 98.9%, through testing obtained highest Absorption efficiency reaches 97.1%.

Claims (1)

1. a kind of preparation method of antiradar coatings, steps are as follows:

1) by 5-10 parts of 20-30 parts of nickel-zinc ferrite, conductive acetylene carbon black powder addition deionized waters, ultrasonic disperse 1-2 hours, Dispersion liquid is made；

2) in the dispersion liquid made from step 1), calcium hexaluminate/15-30 parts of spinelle composite diphase material of addition apparent porosity 45%, It 15-25 parts of graphene, is put into electric blender and at the uniform velocity stirs 8-15min, 10-15 parts of solvent-free silicone resin, nano-silica is added Change titanium 8-12 parts, 3,5,6- trimethyl -2,4-PD double 5-10 parts of isobutyrates, polyether polyol-aliphatic isocyanates 5-10 parts of addition product, pH=7-9 is adjusted with ammonium hydroxide later, obtained solution is stirred 0.5 hour under 80-90 DEG C of water-bath；

3) 30-40 parts of carbon fiber, conductive 5-15 parts of zinc powder stirring 0.5-1 hours are added, stands 3-5 hours；

4) above-mentioned standing solution is added dropwise to 200-300 parts of polychloroprene latex macromolecule complex, dripped within 0.5 hour, stirring is anti- Answer 1-2 hours antiradar coatings.