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Highly aligned P(VDF-TrFE) nanofibers with anisotropic piezoelectricity fabricated by electrospinning for physical sensing devices

  • Beihang University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

This manuscript describes an electrospinning method for fabrication of highly aligned poly(vinylidene fluoride-trifluoroethylene) copolymer (P(VDF-TrFE)) nanofibers. In our experiments, micro-patterned parallel electrodes are used to modify the electric field nearby the collector, and electrospun nanofibers achieve good alignment when the gap distance of the parallel electrodes is larger than 200 μm with a nozzle-collector distance of 70 mm. The aligned nanofibers show excellent piezoelectricity after annealing at 120□ at 120 for 2 hours. It is found that the output of highly aligned P(VDF-TrFE) fibers is greatly improved, compared to that of randomly oriented fibers. The P(VDF-TrFE) fibers demonstrate anisotropic piezoelectricity, which means higher charge output with a strain in the axial direction of the nanofibers than that under a strain in other directions. In addition, the alignment of the P(VDF-TrFE) nanofibers leads to the anisotropic hydrophobicity.

源语言英语
主期刊名2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
出版商Institute of Electrical and Electronics Engineers Inc.
1263-1266
页数4
ISBN(电子版)9781479989553
DOI
出版状态已出版 - 5 8月 2015
活动18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 - Anchorage, 美国
期限: 21 6月 201525 6月 2015

出版系列

姓名2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015

会议

会议18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
国家/地区美国
Anchorage
时期21/06/1525/06/15

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