Study of Electrical and Mechanical Properties of Carbonized Polyoxadiazole-Based Fibers

The influence of temperature resistance of polyparaphenylene-1,3,4-oxadiazole fibers of Arselon and Arsenol-S brands on the specific electrical conductivity, strength, rigidity modulus, and breaking elongation of carbon fiber based on them was studied. Existence of extremums of specific electrical conductivity, strength, and rigidity modulus of carbon fibers in the 312-475 °C temperature holding range was observed. It was found that in the indicated temperature dependencies the maximums and minimums of the specific electrical conductivity alternates with the extremums of strength and rigidity of modulus of carbon fibers in the counterphase.