Piezoresistivity and strain-sensing behaviour of poly(butylene adipate--terephthalate)/multiwalled carbon nanotube nanocomposites.

Multiwalled carbon nanotubes (MWCNTs) at different concentrations, ranging from 0.5 to 10 wt%, as a conductive filler, were incorporated into poly(butylene adipate--terephthalate) (PBAT), a flexible biodegradable copolyester, melt-mixing, followed by compression moulding. The electrical conductivity of the prepared nanocomposites was evaluated by considering their volume resistivity value.