Patterned, highly stretchable and conductive nanofibrous PANI/PVDF strain sensors based on electrospinning and in situ polymerization

Nanoscale
Gui-Feng YuYun-Ze Long

Abstract

A facile fabrication strategy via electrospinning and followed by in situ polymerization to fabricate a patterned, highly stretchable, and conductive polyaniline/poly(vinylidene fluoride) (PANI/PVDF) nanofibrous membrane is reported. Owing to the patterned structure, the nanofibrous PANI/PVDF strain sensor can detect a strain up to 110%, for comparison, which is 2.6 times higher than the common nonwoven PANI/PVDF mat and much larger than the previously reported values (usually less than 15%). Meanwhile, the conductivity of the patterned strain sensor shows a linear response to the applied strain in a wide range from 0% to about 85%. Additionally, the patterned PANI/PVDF strain sensor can completely recover to its original electrical and mechanical values within a strain range of more than 22%, and exhibits good durability over 10 000 folding-unfolding tests. Furthermore, the strain sensor also can be used to detect finger motion. The results demonstrate promising application of the patterned nanofibrous membrane in flexible electronic fields.

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Citations

Jul 28, 2016·ACS Applied Materials & Interfaces·Mingchao ZhangYingying Zhang
May 16, 2020·Scientific Reports·R L CreightonK A Woodrow
Dec 4, 2020·Polymers·Angelika ZaszczyńskaPaweł Sajkiewicz
Dec 8, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Sang Min ParkDong Sung Kim
Jan 11, 2019·ACS Applied Materials & Interfaces·Yiqun QiaoJian Zhong
Feb 25, 2017·ACS Applied Materials & Interfaces·Sang Woo LeeO Ok Park
Sep 3, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Guixu XieYun-Ze Long

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