COLD-SETTING RADAR-ABSORBING MATERIAL Russian patent published in 2022 - IPC H01Q17/00 C08K3/04 C08L83/06 C08K7/20 C08K3/11 

FIELD: materials.

SUBSTANCE: invention relates to non-flammable, high temperature-resistant radar-absorbing materials (RAM), and can be used in anechoic chambers. Proposed is a radar-absorbing material containing a dielectric binder and an component capable of absorbing electromagnetic emission, characterised by containing a product of curing a methoxy siloxane oligomer with zirconium oxychloride (ZOC) octahydrate as a dielectric binder, soot and dispersed carbon fibre as a component capable of absorbing electromagnetic emission, and additionally containing hollow glass microspheres with the average size of 65 mcm, at the following ratio of components, wt.%: oligomer 48.8 to 55.0; ZOC 2.8 to 5.6; hollow glass microspheres 30.0 to 40.2; soot 6.8 to 10.0; dispersed carbon fibre 0 to 2.2, and being produced by mixing the oligomer with an aqueous ZOC solution at a mass ratio oligomer:water of 1:0.40–0.45 by consecutively introducing fillers into the resulting emulsion and curing at room temperature.

EFFECT: proposed RAM is characterised by non-flammability, high temperature resistance, absence of products of destruction from heat effect, low density, required radio engineering characteristics, and simple, energy-conserving technology for manufacturing.

1 cl, 1 dwg, 1 tbl