Electromagnetic functionalized micro-ribbons and ropes for strain sensors via UV-assisted solvent-free electrospinning. (5th September 2017)

• Record Type: Journal Article
• Authors: He, Xiao-Xiao; Yu, Gui-Feng; Wang, Xiao-Xiong; Zhang, Jun; Zheng, Jie; Yu, Miao; Ning, Xin; Long, Yun-Ze
• Is Part Of: Journal of physics. Volume 50:Number 39(2017)
• Publication Date: 2017-09-05
• Subjects: UV-assisted solvent-free electrospinning -- electromagnetic functionalized ribbons -- strain sensors -- superparamagnetic behavior -- eco-friendly approach; Physics -- Periodicals; 530
• DOI: 10.1088/1361-6463/aa8101
• Languages: English
• ISSNs: 0022-3727

Abstract

Abstract: Electromagnetic functionalized polyaniline/polyurethane acrylate/Fe3 O4 (PANI/PUA/Fe3 O4 ) micro-ribbons have been fabricated by UV-assisted solvent-free electrospinning. Herein, two strategies are used to fabricate the composite. One involves the direct electrospinning of PANI/PUA/Fe3 O4 ribbons (the one-step method), the other involves electrospinning the PUA/Fe3 O4 ribbons first, followed by the in situ polymerization of PANI on the surface of the PUA/Fe3 O4 ribbons (the two-step method). The conductivity of the PANI/PUA/Fe3 O4 composite produced via the two-step method can reach 2.04 × 10 −3 S·cm −1, which is 7.5 × 10 2 times higher than that of the composite made via the one-step method. In particular, strain sensors based on PANI/PUA/Fe3 O4 micro-ropes show a linear response to the applied strain from 0% to 199.9%, as well as a quick and repeatable response to pressure and finger motion. Meanwhile, the electromagnetic functionalized ribbons exhibit superparamagnetic behavior at 300 K. This work will provide an efficient and eco-friendly approach to fabricating multi-functional composites and devices.