Electric Resistivity Measurement of Polypropylene Plate with Carbon Nano-fibers

摘要

We measured conduction currents of polypropylene plates, which contain carbon nano-fibers, in order to ascertain conduction mechanism and electric resistivity. The polypropylene plates of two kinds in carbon nano-tube content (wt%) were used as samples. The conduction current density of both samples was increased exponentially with the increase of the electric field strength. The hopping distance and the electric resistivity of the samples were calculated from results of conduction current. There is a close correlation between the hopping distance and the electric resistivity. It is considered that the greater degree of carbon nano-tube content conducts increase in the hopping distance and decrease in the electric resistivity.