HIGH TEMPERATURE, LOW OXIDATION STABILIZATION OF PITCH FIBERS

摘要

The present invention provides a process for thermosetting pitch fibers in reduced times, at low concentrations of oxygen and at higher temperatures than previously possible. Additionally, the present invention provides a pitch fiber which has an oxygen diffusion rate to the center of the fiber which is competitive with the rate of oxidation a t the fiber's surface. Further, the present invention provides a high density pitch fiber batt which thermosets without loss of fiber structure.