Stealth absorbing coatings are mainly composed of a binder and an absorbent. The binder is the main film-forming substance, and the electromagnetic parameters of the absorbent greatly affect the absorbing performance of the coating.

The current application of the absorbing properties of carbon nanotubes is to add them to polymers as absorbing agents to prepare absorbing composite materials with both absorbing properties and superior mechanical properties. The composite of CNTs and polymers can realize the complementary advantages of component materials, and make the most economical and effective use of the unique wave absorption and mechanical properties of carbon nanotubes. Its advantages are mainly as follows: small amount of absorbing agent added, low composite density, easy to obtain lightweight composite materials; strong absorption of electromagnetic waves, and wide absorbing frequency; while having absorbing properties, it has good composite materials Mechanical properties.