Styrene-ethylene-butadiene-styrene copolymer/carbon nanotubes composite fiber based strain sensor with wide sensing range and high linearity for human motion detection

Flexible strain sensors have attracted extensive attention due to their potential applications in wearable electronics and health monitoring. However, it is still a challenge obtain flexible with both high stretchability wide linear sensing range. In this study, styrene-ethylene-butadiene-styrene copolymer/carbon nanotubes (SEBS/CNTs) composite fiber which showed electrical conductivity was fabricated through scalable wet spinning method. The effect of CNTs content on the behavior SEBS/CNTs based sensor investigated. results that when reached 7 wt%, capable strains as 500.20% range 0-500.2% gauge factor (GF) 38.57. Combining stretchability, linearity reliable stability, had ability monitor activities different human body parts including hand, wrist, elbow, shoulder knee.