Electromechanical performance of poly(vinylidene fluoride)/carbon nanotube composites for strain sensor applications

► The piezoresistive behavior of SWCNT/PVDF composites is reported. ► The values of the gauge factor show the viability of these materials for strain sensors. ► The stability of the signal, the time response and the temperature behavior is evaluated. ► The electrical and electromechanical behavior is explained by the percolation theory.