High-performance wearable flexible strain sensors based on an AgNWs/rGO/TPU electrospun nanofiber film for monitoring human activities

• DOI: 10.1515/ntrev-2023-0119
• Publication Date: 2023-10-10T23:44:33Z
• Authors: Lu Zhang; Minghua Wu; Qun Liu; Haidong Wang
• Keywords: Gauge factor; Thermoplastic polyurethane; Strain (injury)

Abstract Wearable flexible strain sensors have attracted considerable attention in recent years, while it is still a significant challenge to fabricate wearable with high sensitivity and wide sensing range simultaneously. In this work, high-performance sensor based on thermoplastic polyurethane electrospun nanofibers (TPUNFs) film embedded silver nanowires/reduced graphene oxide (AgNWs/rGO) composite conductive material was fabricated via simple drop-coating technique. The effect of the amount AgNWs/rGO AgNWs/rGO/TPUNFs investigated, compared that AgNWs/TPUNFs GO/TPUNFs sensor, properties were measured. results showed simultaneously achieved by compounding AgNWs reduced (rGO) material. could be improved increasing material, obviously better than rGO/TPUNFs sensor. obtained possessed (the gauge factor reach maximum 2513.23.) as well (∼187%). Furthermore, had fast response/recovery time (200 ms/300 ms) good cycling stability (∼3,000 cycles). Benefitting from outstanding performance, detect large human motions such finger, wrist, knee bending expression, which demonstrates great potential applications devices.