01700nas a2200157   4500008004100000245011100041210006900152260000800221300001200229490000700241520109500248100002501343700002201368700002701390856012501417       2017                        eng d00aAnalysis of electrical and thermal conductivities of polyethersulfone-graphite based hybrid nanocomposites0 aAnalysis of electrical and thermal conductivities of polyethersu  cAPR  a311-3160 v253 aPolyethersulfone (PES)-7 wt% graphite- x wt% filler (carbon black (CB), carbon nanofiber (CNF), expanded graphite (ExGr)) hybrid composites are synthesized by solution blending route. The electrical percolation threshold in hybrid composites varies exponentially with the aspect ratio of the second conducting filler. The aspect ratio of the second conducting filler has been found to vary in the order CB < CNF < ExGr. The percolation threshold is identified at 0.05 wt%, 0.4 wt%, 1.3 wt% for ExGr, CNF and CB added PES-7 wt% graphite composites. Through plane thermal conductivity of PES-x wt% graphite-y wt% CB (x=10, 20, 30, 40, 50, 60, y=0, 3, 7) hybrid composites has been found to increase with the addition of CB. Thermal conductivity has been increased to 0.42 W/m-K when 7 wt% CB is added to PES-60 wt% graphite from 0.2 W/m-K. Reduction of interparticular distance with the increased loading of CB facilitates better thermal transport. Aspect ratios of second conducting fillers have been found out from transmission electron microscopy and scanning electron microscopy analysis.1 aRamanujam, B., T. S.1 aRadhakrishnan, S.1 aDeshpande, Shripad, D.  uhttps://library.ncl.res.in/content/analysis-electrical-and-thermal-conductivities-polyethersulfone-graphite-based-hybrid