Adhesive failure analysis of pressure-sensitive adhesives

摘要: In this article we use a linear elastic fracture mechanics approach to characterize the adhesive performance of two commercially available pressure-sensitive adhesives (PSAs). An axisymmetric adhesion test involving contact spherical indenter with thin layer is used generate “tack” curves for both adhesives. These describe relationship between normal loads and displacements during test. Adhesive failure understood in terms crack propagation at indenter/adhesive interface. We investigate effects thickness crosshead velocity on tack curves. Using equations developed layers, show that energy release rate unique function given adhesive. Based rates, discuss coupling bulk interfacial properties produce large energies typical © 1999 John Wiley & Sons, Inc. J Polym Sci B: Phys 37: 3455–3472,