Abstract: Flexible resistive carbon composite material containing conductive phases based on high-electroconductive grades of carbon black with specific surface area of at least 300 to 600 m2/g, particle size of 10-50 nm in combination with graphite or high-electroconductive grades of colloidal graphite with particle size of less than 4 micron, and a heat resistant polymer binder. The heat resistant polymer binder is in a form of a solution of a polyester based on terephthalic acid and sebacic acid or adipic acid and ethylene glycol.

Abstract: The invention relates to electrical engineering and to a resistive composite carbon material in particular. It can be used for the preparation of highly conductive pastes and adhesives providing a reliable electrical contact, as well as in manufacture of industrial and household heaters. Resistive carbon composite material includes conductive phase based on high-electroconductive grades of carbon black combined with high-electroconductive colloidal grades of graphite and heat-resistant grades of polymeric binder. Along with this, carbon black which provides high conductivity has a specific surface area of at least 300÷600 m2/g, particle size of 10 to 50 nm; colloidal graphite preparations have graphite particles size of less than 4 microns. The technical result achieved by the invention claimed is increasing of the conductivity and decreasing of the resistance by optimizing the content of the binder and choice of effective conductive components.