caa a22 4500 463226275 CHVBK 20180405153228.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10853-007-1670-2 doi (NATIONALLICENCE)springer-10.1007/s10853-007-1670-2 Effect of carbon black concentration on electrical conductivity of epoxy resin-carbon black-silica nanocomposites [Elektronische Daten] [Wei Zhang, Richard Blackburn, Abbas Dehghani-Sanij] This work presents an insight into the conductivity-carbon black (CB) concentration relationship of nanocomposites. High conductivity is observed above 14% CB loading (% on mass of epoxy resin), indicating the generation of conductive networks throughout the nanocomposites. Observation of the relationship between the natural logarithm of conductivity values versus CB loading shows a remarkable increase in conductivity when the CB loading increases from 19 to 24%. In this region (percolation) a relatively small increase in CB loading produces a large increase in conductivity. When the quantity of CB is low (<14%), the resistivity of the nanocomposite is only slightly different from that of the base polymer; further increase in CB loading beyond the critical concentration region (>24%) causes marginal change in conductivity. The uniformity of the nanocomposites is evidenced by both microstructure (Si-mapping) and macro-property (resistance versus distance relationship) analyses. Springer Science+Business Media, LLC, 2007 Zhang Wei Green Chemistry Group, Centre for Technical Textiles, University of Leeds, LS2 9JT, Leeds, UK aut Blackburn Richard Green Chemistry Group, Centre for Technical Textiles, University of Leeds, LS2 9JT, Leeds, UK aut Dehghani-Sanij Abbas School of Mechanical Engineering, University of Leeds, LS2 9JT, Leeds, UK aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/18(2007-09-01), 7861-7865 0022-2461 42:18<7861 2007 42 10853 https://doi.org/10.1007/s10853-007-1670-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1670-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang Wei Green Chemistry Group, Centre for Technical Textiles, University of Leeds, LS2 9JT, Leeds, UK aut NATIONALLICENCE 700 1- Blackburn Richard Green Chemistry Group, Centre for Technical Textiles, University of Leeds, LS2 9JT, Leeds, UK aut NATIONALLICENCE 700 1- Dehghani-Sanij Abbas School of Mechanical Engineering, University of Leeds, LS2 9JT, Leeds, UK aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/18(2007-09-01), 7861-7865 0022-2461 42:18<7861 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer