Polymer-based carbon-nanotube film with reversible signal tracking capabilities
Abstract(#br)This study presents a polymer-based carbon-nanotube (CNT) sensing polymer with reversible signal tracking capabilities. The sensing polymer was prepared by dispersing multi-walled CNTs (MWCNTs) and silver nanoparticles into the polydimethylsiloxane (PDMS) polymer matrix. Before curing the PDMS prepolymer, MWCNTs were aligned in the prepolymer, using the dielectrophoresis (DEP) technique. Under an external force, the polymer increased and retained resistivity, which could be recovered to its original value by repeating DEP.