Structural performance difference between polyacrylonitrile and carbon fiber
Carbon fibers are formed by pre oxidation and carbonization of polyacrylonitrile.
Polyacrylonitrile is a polymer that is polymerized from acrylonitrile and is chain like.
The chain structures undergo cyclization and crosslinking during the pre oxidation stage to form a heat-resistant ladder structure. The carbon phase is conjugated to form the carbon base surface during the carbonization stage, and the carbon base surface grows up and finally forms a graphite like structure.