Freestanding electrospun nanofibrous materials embedded in elastomers for stretchable strain sensors

Obiora Onyilagha; Yichun Ding; Zhengtao Zhu

doi:10.1117/12.2517160

13 May 2019 Freestanding electrospun nanofibrous materials embedded in elastomers for stretchable strain sensors

Obiora Onyilagha, Yichun Ding, Zhengtao Zhu

Proceedings Volume 10982, Micro- and Nanotechnology Sensors, Systems, and Applications XI; 1098216 (2019) https://doi.org/10.1117/12.2517160
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

Stretchable/flexible strain sensors are of great interests in the fields of human motion monitoring, soft robotics, and human machine interface. In this talk, we present stretchable strain sensors prepared by embedding the freestanding electrospun carbon nanofibers (CNFs) in an elastomer matrix (e.g. polyurethane). The piezoresistive response of the sensor under stretching was investigated; and the result showed that the sensor had high stretchability, high sensitivity to strain change, and good stability and reproducibility. The mechanism of the sensor was elucidated by morphological studies of the device at various strains. The effects of various device parameters on the device performance were explored to fabricate the strain sensors with sensitivity over a broad strain range. Furthermore, using these strain sensors as wearable devices for human motion monitoring was demonstrated.

Conference Presentation

Citation Download Citation

Obiora Onyilagha, Yichun Ding, and Zhengtao Zhu "Freestanding electrospun nanofibrous materials embedded in elastomers for stretchable strain sensors", Proc. SPIE 10982, Micro- and Nanotechnology Sensors, Systems, and Applications XI, 1098216 (13 May 2019); https://doi.org/10.1117/12.2517160

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