MULTILAYER ELECTROCONDUCTIVE COATING BASED ON THERMORESISTANT BINDING AGENT Russian patent published in 2015 - IPC B32B27/06 B82B1/00 H05F1/02 B64D45/02 

FIELD: electricity.

SUBSTANCE: multilayer electroconductive coating based on thermoresistant binding agent has at least two current-conducting layers of equal in strength carbon filler of harness-satin or broken twill, at least two dielectric layers alternated with the above current-conducting layers. The current-conducting layers have electric resistance of less than 10 Ohm. The dielectric layers comprise epoxy or cyanether binding agent with glass-transition temperature of 200-280°C and temperature of destruction commencement of 320-420°C and particles with size less than 100 nm containing carbon phase. The electroconductive coating has the following ratio of components, wt %: carbon filler 55-66, epoxy or cyanether binding agent 33.95-42, particles with carbon phase 0.05-3.

EFFECT: maintained high level of retained strength for the main material in polymer-composite structure in the epicentre of lightning stroke with current of 200 kA and transferred charge Q more than 30 Cb, increased resistance of the coating to dynamic and heat loads in result of lightning stroke impact, and namely: non-available delamination of the electroconductive coating from the main material in structure, decreased diameter of the binding agent destruction and pitch extraction from the top layer of the electroconductive coating, reduced diameter of harness opening into separate carbon fibres of electroconductive coating.

5 cl, 2 tbl, 3 ex