Chapartegui, M.Markaide, N.Florez, S.Elizetxea, C.Fernandez, M.Santamaría, A.2024-07-242024-07-242010-05Chapartegui , M , Markaide , N , Florez , S , Elizetxea , C , Fernandez , M & Santamaría , A 2010 , ' Specific rheological and electrical features of carbon nanotube dispersions in an epoxy matrix ' , Composites Science and Technology , vol. 70 , no. 5 , pp. 879-884 . https://doi.org/10.1016/j.compscitech.2010.02.0080266-3538https://hdl.handle.net/11556/4118The rheological analysis of epoxy pre-polymer/MWCNT dispersions indicates that a physical network is formed. This is destroyed with an imposed shear, giving a viscoplastic and shear thinning behavior. Such destruction is not reflected in dynamic viscoelastic experiments, due to the very rapid recovery of the MWCNT network in the pre-polymer matrix. This responds to the observed lower electrical than rheological percolation threshold. Electrical conductivity results fulfill electron hopping/tunnelling mechanism, which implies a tube-tube distance close to 5. nm. However, rheological percolation requires nanotubes should touch each other, since no polymer chains are implied in the network.6enginfo:eu-repo/semantics/restrictedAccessjournal article10.1016/j.compscitech.2010.02.008A. Carbon nanotubesA. NanocompositesB. Electrical propertiesD. RheologyEpoxyCeramics and CompositesGeneral Engineeringhttp://www.scopus.com/inward/record.url?scp=77950525572&partnerID=8YFLogxK