Direct Piezoelectric Coefficient Measurements of PVDF and PLLA under Controlled Strain and Stress

Open-circuit direct piezoelectric coefficients g31 of bi-axially stretched PVDF and chiral PLLA are reported. This measure is decisive for sensor, generator and energy harvesting applications. We use an in-situ method with contactless voltage measurement during a conventional tensile-test, greatly i...

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Bibliographic Details
Published in:Proceedings
Main Authors: Francois Bernard, Leticia Gimeno, Bernard Viala, Boris Gusarov, Orphee Cugat
Format: Article
Language:English
Published: MDPI AG 2017-08-01
Subjects:
piezoelectric polymer
PLLA
PVDF
Online Access:https://www.mdpi.com/2504-3900/1/4/335
Description
Summary:Open-circuit direct piezoelectric coefficients g31 of bi-axially stretched PVDF and chiral PLLA are reported. This measure is decisive for sensor, generator and energy harvesting applications. We use an in-situ method with contactless voltage measurement during a conventional tensile-test, greatly improving measurement precision (error less than 10%).
ISSN:2504-3900

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