title: Electrospun Aligned Fibrous Arrays and Twisted Ropes: Fabrication, Mechanical and Electrical Properties, and Application in Strain Sensors.
abstract: Electrospinning (e-spinning) is a versatile technique to fabricate ultrathin fibers from a rich variety of functional materials. In this paper, a modified e-spinning setup with two-frame collector is proposed for the fabrication of highly aligned arrays of polystyrene (PS) and polyvinylidene fluoride (PVDF) nanofibers, as well as PVDF/carbon nanotube (PVDF/CNT) composite fibers. Especially, it is capable of producing fibrous arrays with excellent orientation over a large area (more than 14 cm × 12 cm). The as-spun fibers are suspended and can be easily transferred to other rigid or flexible substrates. Based on the aligned fibrous arrays, twisted long ropes are also prepared. Compared with the aligned arrays, twisted PVDF/CNT fiber ropes show enhanced mechanical and electrical properties and have potential application in microscale strain sensors.
authors.affiliation: College of Physics, Qingdao University, Qingdao, 266071, China. zhengjie2009123@126.com.
authors.forename: Jie
authors.initials: J
authors.lastname: Zheng
authors.affiliation: College of Physics, Qingdao University, Qingdao, 266071, China. yanxu-925@163.com.
authors.forename: Xu
authors.initials: X
authors.lastname: Yan
authors.affiliation: College of Physics, Qingdao University, Qingdao, 266071, China. limm@mpip-mainz.mpg.de.|Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany. limm@mpip-mainz.mpg.de.
authors.forename: Meng-Meng
authors.initials: MM
authors.lastname: Li
authors.affiliation: College of Physics, Qingdao University, Qingdao, 266071, China. xiaoyuer886as@126.com.
authors.forename: Gui-Feng
authors.initials: GF
authors.lastname: Yu
authors.affiliation: College of Physics, Qingdao University, Qingdao, 266071, China. hongdi_zhang@163.com.
authors.forename: Hong-Di
authors.initials: HD
authors.lastname: Zhang
authors.affiliation: Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany. pisula@mpip-mainz.mpg.de.
authors.forename: Wojciech
authors.initials: W
authors.lastname: Pisula
authors.affiliation: College of Physics, Qingdao University, Qingdao, 266071, China. xxhe0121@163.com.
authors.forename: Xiao-Xiao
authors.initials: XX
authors.lastname: He
authors.affiliation: Institut des Matériaux Jean Rouxel, CNRS, Université de Nantes, Nantes, France. duvail@cnrs-imn.fr.
authors.forename: Jean-Luc
authors.initials: JL
authors.lastname: Duvail
authors.affiliation: College of Physics, Qingdao University, Qingdao, 266071, China. yunze.long@163.com.
authors.forename: Yun-Ze
authors.initials: YZ
authors.lastname: Long
keywords: Aligned arrays; Electrical properties; Electrospinning; Strain sensors; Twisted ropes