Improved Conductivity of Carbon-Nano-Fiber (CNF)/Polytetrafluoroethylene (PTFE) Composite.

A series of CNF/PTFE composite loaded with different weight % of CNFs as 0.01, 0.02, 0.03, 0.05, 1, 2, 3, 4, 5 into PTFE is fabricated. In this work, the 5wt% heat-treated CNFs were used as filler in PTFE. Current-voltage (I-V) study of the samples confirmed the samples as conducting composite. In scanning electron microscope (SEM) study, the conducting CNFs channels were observed from upper surface to inside throughout the polymer matrix. A sintered composite of 5wt% loading of CNFs showed an improved conductivity and SEM image exhibited a good binding of CNFs into PTFE. [ABSTRACT FROM AUTHOR]