Fundamental Study of Piezoelectric Motion of Chiral Polymeric Fibers for Realizing Tubular-Type Polymeric Actuator for Large Macroscale Physical Object

• Suhei Itoh

• Michiya Sawano

• Hiroomi Hikawa

• Yutaka Maeda

• Yoshiro Tajitsu

Abstract

The piezoelectric constant of a poly(L-lactic acid) (PLLA) fiber is larger than that of other piezoelectric polymers. It is well known that it is easier to fabricate large devices with a flexible shape using polymer materials than using inorganic materials. Thus, on the basis of the features of polymer materials, we attempted to fabricate a PLLA actuator for a large macroscale physical object using PLLA fibers. We consider how to bundle PLLA fibers into a tubular-type polymeric actuator (PLLAFTTPA) with electrodes for producing piezoelectric motion under the application of voltage. Then, by thermal welding, a PLLAFTTPA with electrodes on its inner and outer surfaces was manufactured. Finally, we succeeded in producing a PLLAFTTPA with a diameter of 1 cm and a length of 12 cm. We observed that, under the application of an ac voltage of 2 kV, the PLLAFTTPA could be tilted 20 µm in the fixed direction when the base of the PLLAFTTPA was mounted.

Journal

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 49 (9S), 09MD14-, 2010-09-01

  IOP Publishing

Keywords

• General Physics and Astronomy
• General Engineering

Details

• CRID: 1360284921832446848
• NII Article ID: 210000069255
• DOI: 10.1143/jjap.49.09md14
• ISSN: 13474065
• ISSN: 00214922
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.49.09MD14
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.49.09MD14/pdf
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  • CiNii Articles