In situ observation of stereoscopic shapes of cavities in soft adhesives
- 27 February 2007
- journal article
- Published by IOP Publishing in Europhysics Letters
- Vol. 77 (6), 64002
- https://doi.org/10.1209/0295-5075/77/64002
Abstract
By using a new visualization technique, we succeeded in the in situ observation of the stereoscopic shape of cavities formed in a thin film of soft adhesives in the debonding process of the probe-tack test. We found that the cavity shape and the interfacial fracture behavior are strongly influenced by the cross-linking density of the soft adhesives: for soft adhesives, the cavity is nearly spherical, and the fracture slows down basically due to the blunting of the cavity edge, while for hard adhesives the cavity becomes pancake-like, and the fracture is due to the coalescence of cavities at the adhesive-probe interface.Keywords
This publication has 23 references indexed in Scilit:
- Surface energy effects for cavity growth and nucleation in an incompressible neo-Hookean material––modeling and experimentInternational Journal of Solids and Structures, 2004
- Deformation behavior of thin, compliant layers under tensile loading conditionsJournal of Polymer Science Part B: Polymer Physics, 2004
- Nucleation and growth of cavities in soft viscoelastic layers under tensile stressThe European Physical Journal E, 2002
- Micromechanisms of Tack of Soft Adhesives Based on Styrenic Block CopolymersMacromolecular Materials and Engineering, 2002
- Cavitation in AdhesivesPhysical Review Letters, 2000
- Deformation and failure modes of adhesively bonded elastic layersJournal of Applied Physics, 2000
- On StickinessPhysics Today, 1999
- Direct Observation of Cavitation and Fibrillation in a Probe Tack Experiment on Model Acrylic Pressure-Sensitive-AdhesivesThe Journal of Adhesion, 1999
- Theory of TackinessPhysical Review Letters, 1999
- Handbook of Pressure Sensitive Adhesive TechnologyPublished by Springer Science and Business Media LLC ,1989