5 years ago

Nanofibrous Smart Fabrics from Twisted Yarns of Electrospun Piezopolymer

Nanofibrous Smart Fabrics from Twisted Yarns of Electrospun Piezopolymer
Majid Minary-Jolandan, Jules Gilligan, Ali Behroozfar, Zhe Xu, Enlong Yang, Lucas K. Chur, Jiacheng Huang, Salvador Moreno, Mahmoud Baniasadi
Smart textiles are envisioned to make a paradigm shift in wearable technologies to directly impart functionality into the fibers rather than integrating sensors and electronics onto conformal substrates or skin in wearable devices. Among smart materials, piezoelectric fabrics have not been widely reported, yet. Piezoelectric smart fabrics can be used for mechanical energy harvesting, for thermal energy harvesting through the pyroelectric effect, for ferroelectric applications, as pressure and force sensors, for motion detection, and for ultrasonic sensing. We report on mechanical and material properties of the plied nanofibrous piezoelectric yarns as a function of postprocessing conditions including thermal annealing and drawing (stretching). In addition, we used a continuous electrospinning setup to directly produce P(VDF-TrFE) nanofibers and convert them into twisted plied yarns, and demonstrated application of these plied yarns in woven piezoelectric fabrics. The results of this work can be an early step toward realization of piezoelectric smart fabrics.

Publisher URL: http://dx.doi.org/10.1021/acsami.7b06032

DOI: 10.1021/acsami.7b06032

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