chapter  5
84 Pages

Carbon Fiber Production using a PAN Precursor

A PAN based carbon fiber is produced by the oxidative stabilization of a PAN precursor, normally followed by a two-stage carbonization process, with an added heat treatment stage to manufacture a high modulus fiber. The aim is to remove, in gaseous form, all elements other than carbon, although high strength fibers do contain up to about 5% nitrogen, depending on the manufacturer.