METHOD FOR HIGH-TEMPERATURE STABILIZATION OF PITCH FIBERS AT LOW CONCENTRATION OF OXIDIZER

摘要

FIELD: manufacture of carbon fibers from carbonaceous pitches. SUBSTANCE: method involves heating pitch fibers from initial operating temperature equal to fiber spinning temperature; providing contacting of fibers with gas flow containing up to 8 wt% of oxygen, with heat release being restricted; holding fiber at high temperature while maintaining said contacting for time interval sufficient for fiber stabilization. EFFECT: simplified method and increased efficiency. 9 cl, 1 tbl, 6 ex