Conduction behavior of polyaniline/elastomer composites and the influence of carbon black addition
DOI:
https://doi.org/10.5324/nordis.v0i23.2444Keywords:
HVDC, coundcution, carbon black,Abstract
Three different compositions of EPDM, polyaniline (PANI) and carbon black have been studied with respect to conduction properties. It could be concluded that both carbon black and polyaniline influence the low field conductivity. In addition, the influence of different conduction mechanisms was studied. Measurements on the temperature dependence of the electrical conductivity indicated that large amount of polyaniline in EPDM rubber manifested in 1D variable range hopping (1D-VRH) behavior whereas less amount, although still well above the percolation threshold, resulted in behavior more similar to the Arrhenius law. However, further studies are necessary to draw definitive conclusions on the influence of filler content. Studying the field dependent conductivity behavior it could be concluded that there is a Ohmic region at low field and a transition towards space charge limited current (SCLC) at higher field with possible influence of other conduction mechanisms.
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