Polymer evaluation by using the thickness longitudinal and shear vibrations of piezoelectric ceramics: application to the monitoring of thermosetting resins' polymerization
- 14 November 1995
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 28 (11), 2328-2334
- https://doi.org/10.1088/0022-3727/28/11/015
Abstract
This work deals with the analysis of the electric impedance of piezoelectric ceramics embedded in viscoelastic materials. By using a theoretical approach, we show that this parameter is a function of the viscoelastic properties of the medium surrounding the piezoelectric ceramic. Then a method for extracting the viscoelastic properties of the outside medium from the piezoelectric ceramic electric impedance is described. Finally, this technique is used for monitoring the polymerization of epoxy-amine resins.Keywords
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