30 December 2008 Electrical conducting behavior of hybrid nanocomposites containing polyaniline, carbon nanotube, and carbon black
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Abstract
Nanocomposites of high density polyethylene (HDPE) reinforced with hybrid fillers of polyaniline coated multiwalled carbon nanotube (MWNT), and carbon black (CB) were developed aiming at enhancing the electrical conductivity of the composites. The electrical properties such as volume resistivity, impedance, and conductance have been measured as a function of filler volume concentration (%), frequency and voltage. The electrical property such as volume resistivity depends on the concentration of fillers. This is due to the formation of a continuous conducting network throughout the polymer matrix with increase in the conducting filler. This kind of variation is referred as Maxwell-Wagner effect. The resistance of the prepared PANI/c-MWNT/CB/HDPE nanocomposites is found to be ohmic. It was shown that adding CB in PANI/c-MWCNTs composites can enhance the electrical properties of the nanocomposites: a low percolation threshold was achieved with 0.25 wt% CNTs and 20 wt% of CB/HDPE. CB enhanced the ductility of the nanocomposites, confirming the synergic effect of CB as effective multi-functional filler.
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M. G. Veena, M. G. Veena, N. M. Renukappa, N. M. Renukappa, M. Siddaramaiah, M. Siddaramaiah, R. D. Sudhakersamuel, R. D. Sudhakersamuel, } "Electrical conducting behavior of hybrid nanocomposites containing polyaniline, carbon nanotube, and carbon black", Proc. SPIE 7267, Smart Materials V, 72671A (30 December 2008); doi: 10.1117/12.816671; https://doi.org/10.1117/12.816671
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