Resonant microcantilevers for the determination of the loss modulus of thin polymer films
Résumé
The increasing interest in polymer materials creates the need for accurate tools to characterize their mechanical
properties. Due to energy dissipation in polymers during deformation, these materials exhibit viscoelastic behavior.
Accurate determination of these viscoelastic properties and, more specifically, viscous losses, remains challenging and mainly
unknown for thin polymer films. In the present work, a straightforward method to determine the loss modulus of organic
materials using resonating microcantilevers has been developed. The extracted results for polyisobutylene (PIB) show the
variation of viscous losses over a large range of frequencies (7-350kHz).
Origine | Fichiers produits par l'(les) auteur(s) |
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