Electromechanical Properties of Poly-L-Lactic Acid
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概要
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The electromechanical coupling coefficient, the piezoelectric constant, the elastic compliance constant and the mechanical quality factor for a poly-L-lactic acid (PLLA) plate elongated to 4 times the original length were determined by a self-resonant method. k14=0.064, d14=9.82×10-12 C/N, s44E=9.28×10-10 m2/N and Qm=30.3 were obtained at room temperature for a 0° X-cut square plate. It is noted that elongated PLLA films have no spontaneous polarization, unlike poled polymers such as poly(vinylidene fluoride) (PVDF), but still have a large shear piezoelectric constant.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 1998-06-15
著者
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FUKADA Eiichi
Kobayashi Institute of Physical Research
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OCHIAI Tsutomu
Kobayashi Institute of Physical Research
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Ochiai T
Kobayasi Institute Of Physical Research
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