THE EFFECT OF TREATMENTS ON THE PROPERTIES OF RAYON BASED CARBON FIBROUS MATERIALS AND THEIR CARBON PLASTICS AND C/C COMPOSITES

The elaboration of production technologies of carbon plastics (CP) and C/C composites based on carbon fibers (CF) for various applications requires knowledge of the filler surface area interacting with the matrix and its physico mechanical properties. There has been investigated the effect on pycno metric (realρ r) density and specific surface area (S α) of carbon fibrous materials and its morphology of various physico chemical factors: temperature of heat treatment (HTT) and conditions of electrochemical treatment (ECT) in an electrolyte at different current strength at which the activation of the CF surface occurs accompanied by the formation of functional O containing groups thereby increasing the cohesion between the matrix and CF in CP and C/C composites.