Synergistic effects of carbon nanotube/conductive carbon black on electrical conductivity of PA6
Paper ID : 1473-ICNS
Reza Bagheri *1, mohammad farhadpour2, babak jahanaray3
1Polymer Materials Research Group(PMRG), Materials Science and Engineering Department, Sharif University of Technology
2Polymeric Materials Research Group, Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran
3Innovation and Technology Center, Parsa Polymer Sharif Co, Tehran, P.O. Code 1459995841, Iran.
for increasing electrical conductivity of insulating thermoplastic resins, conductive carbon fillers can be used. Often, single type of carbon filler is added to achieve desired conductivity. In this work polyamide 6 (PA6) were filled with multiwalled carbon nanotubes (MWCNT) and Conductive carbon blacks (CCB) with and without dispersing agents by melt blending. The morphology, electrical and mechanical properties of the samples have been investigated. With 2.5 wt% of CNT and 5 wt% of CCB with dispersing agents, electrical conductivity improved 6 orders of magnitude (S/cm) compared to the sample with no dispersing agents and to the sample with 2.5 wt% CNT and dispersing agent. It shows efficient synergistic effect because it prevents carbon agglomerate formation. This also leads to prevention of a decrease in mechanical properties that often occurrs in conductive nanocomposites with single conductive filler with low aspect ratio. The aim of this work is to investigate the synergistic effect of CNT/CCB with dispersing agents without decrease in mechanical properties.
Synergistic effect; Nanocomposite; Carbon nanotube; Conductive carbon black; Dispersing agent
Status : Abstract Accepted (Poster Presentation)