Carbonization Behavior of Polyimide Containing Nickel Compounds

Abstract

Carbonization behavior of polyimide mixed with nickel compounds was investigated.The carbonization behavior of polyimide was altered by nickel compounds added at the precursor stage. The size of nickel metal crystal which was given by reduction of the nickel compounds at the early stage of polyimide carbonization varied as well below the heat-treatment temperature of 600°C. However, the size of nickel crystal afterheat-treatment at 800°C and the crystal parameters of turbostratic carbon developed by the catalytic effects of nickel metal were independent of the original nickel compounds and the same values were given for all nickel containing samples.