Sensitive stretchable textile transducer based on Lycra1880/PEGDA/PEDOT:PSS

A piezoresistive textile fiber is developed for wearable and flow permeable sensing. Our study presents a transducer fabrication method by PEDOT:PSS coating onto a commercial textile fiber Lycra. To improve the bond strength between conducting layer and fiber, before the deposition of PEDOT:PSS at the surface of the fiber, poly(ethylene glycol) diacrylate (PEGDA) is polymerized in-situ into textile to increase the fiber's affinity with the conducting polymer. After 100 stretch/release training cycles for up to 20% strain to stabilize the electromechanical properties, a gauge factor of 60 for a strain between 0 and 5% is obtained.