Physics of Fluids - Publications

Peeling an elastic film from a soft viscoelastic adhesive: experiments and scaling laws

Open Access
Soft Matter 15, 770–778 (2019)

Authors

	H. Perrin
	Antonin Eddi
	Stefan Karpitschka
	Jacco Snoeijer
	Bruno Andreotti

BibTeΧ

@Article{C8SM01946K,
author ="Perrin, Hugo and Eddi, Antonin and Karpitschka, Stefan and Snoeijer, Jacco H. and Andreotti, Bruno",
title  ="Peeling an elastic film from a soft viscoelastic adhesive: experiments and scaling laws",
journal  ="Soft Matter",
year  ="2019",
volume  ="15",
issue  ="4",
pages  ="770-778",
publisher  ="The Royal Society of Chemistry",
doi  ="10.1039/C8SM01946K",
url  ="http://dx.doi.org/10.1039/C8SM01946K",
abstract  ="The functionality of adhesives relies on their response under the application of a load. Yet{,} it has remained a challenge to quantitatively relate the macroscopic dynamics of peeling to the dissipative processes inside the adhesive layer. Here we investigate the peeling of a reversible adhesive made of a polymer gel{,} measuring the relationship between the peeling force{,} the peeling velocity{,} and the geometry of the interface at small-scale. Experiments are compared to a theory based on the linear viscoelastic response of the adhesive{,} augmented with an elastocapillary regularization approach. This theory{,} fully quantitative in the limit of small surface deformations{,} demonstrates the emergence of a “wetting” angle at the contact line and exhibits scaling laws for peeling which are in good agreement with the experimental results. Our findings provide a new strategy for design of reversible adhesives{,} by quantitatively combining wetting{,} geometry and dissipation."}