Mechanisms of adhesion of soft adhesives

In this area, we investigate the effect of systematic changes in the molecular structure or architecture of polymers typically used as pressure-sensitive-adhesives, on the micromechanisms of deformation during debonding of the adhesive layer.

The main tool used in these investigations is the probe tack tester, which has been designed to test the adhesive properties of confined deformable layers in a reproducible way while observing the deformation mechanisms in real time.

The rheological properties of the materials used are also of course characterized and whenever possible, tensile tests are carried out to determine the large strain deformation properties of the material.

More info

Shull, K.R. and Creton, C. (2004) "Deformation Behavior of Thin, Compliant Layers Under Tensile Loading Conditions". J. Polym. Sci. Polym. Ed. 42, 4023-4043.

Lindner A, Lestriez B, Mariot S, Creton C, Maevis T, Luhmann B, Brummer R (2006) "Adhesive and rheological properties of lightly crosslinked model acrylic networks" J. Adh. 82 (3), 267-310.

Creton, C., A. Roos, and A. Chiche (2005) "Effect of the diblock content on the adhesive and deformation properties of PSAs based on styrenic block copolymers" in Adhesion : Current Research and Applications, W.G. Possart, Editor. Wiley-VCH : Weinheim. p. 337-364.

B. Lestriez, H. Lakrout, A. Chiche, A. Roos and C. Creton. "Probe tack tests as a characterization tool in pressure-sensitive-adhesives" Proceedings of the PSTC Technical Seminar TECH XXIV, Orlando, USA, 2-4 May 2001.