A kind of radar wave absorbing stealth paint and preparation method thereof

Abstract

The invention relates to a radar wave absorbing stealth coating and a preparation method thereof, which at least contain a polymer resin binder as a radar wave absorbing agent, and zinc oxide whiskers with a four-needle structure, which can adjust the electrical conductivity of the resistance of the zinc oxide whiskers. Carbon black, modified nano-iron tetroxide. The preparation process mainly includes: adding zinc oxide whiskers with a three-dimensional tetra-needle structure and other adjustment components into the coating based on polyurethane and epoxy resin, and performing mechanical stirring, filtering and other processes. The stealth coating composition of the present invention has small specific gravity and simple preparation method, and can be coated by conventional coating methods, such as roller coating, spraying or brushing, conveniently and uniformly coating the coating on spraying or brushing methods. It is applied to the surface of the aluminum plate material to form a wave-absorbing coating with an average thickness of 1-1.5mm, and is cured at room temperature. After testing, its reflectivity in the X-band (8-12GHz) reaches -5--10dB; the reflectivity in the Ku-band (12-18GHz) is better than -6--10dB. The surface density of the coating is only about 1.5kg / m2, and the adhesion is above 14MPa.

Description

A kind of radar wave absorbing stealth paint and preparation method thereof technical field The invention relates to a wave-absorbing stealth material and a preparation method thereof, more specifically, the present invention relates to a radar absorbing stealth coating suitable for X-band (8-12GHz) and Ku-band (12-18GHz) and its Preparation. Background technique In today's era, information acquisition and anti-acquisition have become the focus of modern high-tech warfare. Finding the enemy first is an important guarantee for attacking the enemy first and defeating the enemy. The stealth of weapons and equipment can not only break the traditional offensive and defensive pattern, but also improve the penetration capability and survivability of weapons and equipment, and greatly improve combat effectiveness. This point has been fully reflected in the Gulf wars launched by the United States. The acquisition of stealth performance mainly includes measures and means such as e...

AI Technical Summary

Problems solved by technology

Although the above-mentioned existing technologies have their own merits, there are also various defects, and the comprehensive performance can hardly reach the satisfactory technical effect of radar wave absorption.

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