Electrospun PVDF fibers on bio-wings using multi-spinnerets

C. K. Yen, C. H. Tsao, C. T. Pan, H. C. Wu, Y. C. Lai, Z. H. Liu, Y. L. Lin, Liwei Lin, S. W. Kuo, Y. S. Lu, H. L. Hung, S. W. Mao, C. F. Liu, S. C. Shen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, a cylindrical glass tube for near-field electrospinning (NFES) with multi-spinnerets is modified to fabricate polyvinylidene fluoride (PVDF) nanofibers on polyethylene terephthalate (PET) in large area. For the process, the traditional NFES is replaced by micro-drills technology which is used to design multi-spinnerets and drill spinnerets on the solder balls. PVDF solutions were formulated with 18 wt % and 44.2 μS/cm of the conductivity. When the electric field of 1.6 × 107 V/m overcomes the surface tension, the Taylor cone can be formed. After the surface tensions of the solution are overcome, PVDF piezoelectric fibers are spun from the Taylor cone tip and collected by the cylindrical glass tube at the tangential velocity of 1779.9 mm/s. Then, after the PVDF piezoelectric fibers were heated at 65°C for 1hour, PVDF fibers with higher piezoelectric β-phase crystallization can be obtained with diameters from 2 μm to 5 μm. Finally, PVDF piezoelectric fibers are packaged on parallel electrodes. By vibrating the fibers with frequency from 2∼9 Hz, a maximum peak voltage of 86.9 mV can be observed. The wing of Bear Cicada was used to test the output voltage of PVDF fibers. The as-fabricated PVDF by multi-spinnerets can be applied to power scavenger, sensing devices, actuators, and biomedical purposes in the future.

Original languageEnglish
Title of host publication9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages609-613
Number of pages5
ISBN (Electronic)9781479947270
DOIs
Publication statusPublished - 2014 Sep 23
Event9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014 - Waikiki Beach, United States
Duration: 2014 Apr 132014 Apr 16

Publication series

Name9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014

Other

Other9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE-NEMS 2014
CountryUnited States
CityWaikiki Beach
Period14-04-1314-04-16

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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