The effect of the nonlinear viscoelastic properties on tack

Claude Verdier (1) , Jean-Michel Piau (1)

1 LR - Laboratoire de rhéologie

The influence of rheological and surface properties on adhesive tackiness are studied. In particular, the importance of the elongational properties is emphasized in a model, which considers only the adhesive contribution, while neglecting the importance of cavitation and surface roughness. It is shown that this simple analysis allows one to recover the different types of curves (i.e. different adhesive materials) obtained in the literature on tack. Elastic, strain hardening and viscous adhesive materials are considered. The question of the importance of surface properties is raised and discussed.

Mots clés: Adhesion; tack; strain hardening; elongation

Domaines: Matériaux; Polymères; Autre

Claude Verdier, Jean-Michel Piau. The effect of the nonlinear viscoelastic properties on tack. Journal of Polymer Science Part B: Polymer Physics, 2003, 41, pp.3139-3149. ⟨hal-00322164⟩