Nonlinear Viscoelastic Modeling of Adhesive Failure for Polyacrylate Pressure-Sensitive Adhesives
| Autor: | Chopin, Julien, Villey, Richard, Yarusso, David, Barthel, Etienne, Creton, Costantino, Ciccotti, Matteo |
|---|---|
| Přispěvatelé: | Sciences et Ingénierie de la Matière Molle (UMR 7615) (SIMM), Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Instituto de Física da Universidade Federal da Bahia (UFBA), Universidade Federal da Bahia (UFBA), SAINT GOBAIN GLASS France CRDC, Saint Gobain, 3M Company, Université Paris sciences et lettres (PSL), HAL-UPMC, Gestionnaire, Bresson, Bruno |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
[PHYS]Physics [physics]
[PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] [PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft] [PHYS.COND] Physics [physics]/Condensed Matter [cond-mat] ComputingMilieux_MISCELLANEOUS [PHYS] Physics [physics] [PHYS.COND.CM-SCM] Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft] |
| Zdroj: | Macromolecules Macromolecules, American Chemical Society, 2018, 51 (21), pp.8605-8610 |
| ISSN: | 0024-9297 1520-5835 |
| Popis: | International audience; We investigate experimentally the adherence energy Γ of model polyacrylate Pressure Sensitive Adhesives (PSAs) with combined large strain rheological measurements in uniaxial extension and an instrumented peel test. We develop a nonlinear model for such peel test which captures the dependence of Γ(V) with peeling rate V revealing the key role played by the extensional rheology. Our model explains in particular why traditional linear viscoelastic approaches correctly predict the slope of Γ(V) curves for sufficiently elastic PSAs characterized by a simple rate-independent debonding criterion. However, for more viscoelastic adhesives, we identified a more complex rate-dependent debonding criterion yielding a significant modification of the Γ(V) curves, an effect that has been largely overlooked so far. This investigation opens the way towards the understanding of fibrils debonding, which is the main missing block to predict the adherence of PSAs. |
| Databáze: | OpenAIRE |
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