Influence of Heat Treatment on the Electrical Conductivity of Carbon Black-Filled Polyethylene Composites

The experimental results in this study demonstrated that a pertinent aging treatment would effectively decrease the resistance of a carbon black-filled polyethylene (PE) composite to its ground value. The composites just irrsdiated would exhibit significant resistance jump after heating them to a temperature higher than the melting point of FE crystalline and then performing the thermal aging. The degree of resistance jump was dependent on characteristics of the carbon black contained in the composites. However, to perform the thermal aging on the composites prior to irradiation had no evident effect on the resistance jump.