https://doi.org/10.1140/epje/i2006-10073-5
Regular Article
Debonding dynamics of pressure-sensitive adhesives: 3D block model
1
CREST, Japan Science and Technology Agency (JST), 7-3-1 Hongo, 113-8656, Bunkyo-ku, Japan
2
Department of Applied Physics, The University of Tokyo, Japan
* e-mail: yamaguchi@rheo.t.u-tokyo.ac.jp
Received:
5
November
2006
Accepted:
4
January
2007
Published online:
13
February
2007
We develop a 3-dimensional mechanical model which describes cavity expansions in a viscoelastic solid medium during the debonding phase of the probe-tack test. The stress-strain curves are in good agreement with experiments for the typical pressure-sensitive adhesives. We also show that the separation speed dependence can be explained by viscous dissipations due to large strain rates around the cavities.
PACS: 47.55.dp Cavitation and boiling – / 68.35.Np Adhesion –
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2007