PREPREG MATERIAL ABLE TO PROVIDE PROTECTION AGAINST LIGHTNING STRIKE AND RESISTANCE TO BURN-THROUGH Russian patent published in 2020 - IPC B29C70/02 

FIELD: protective devices.

SUBSTANCE: invention relates to a thermally expanded and electroconductive material. Technical result is achieved by thermally expanded and electroconductive material capable of providing protection against lightning strike and resistance to burn-through. Material comprises a non-woven mat with randomly arranged electroconductive fibers, thermally expandable particles, included or distributed throughout said mat, and a curable matrix resin containing one or more thermosetting resins and a hardener. Electroconductive fibers and the thermally expanded particles are embedded in the curable matrix resin.

EFFECT: technical result is lightning protection and resistance to burn-through of the material.

20 cl, 12 dwg, 9 tbl, 7 ex