title: Asymmetry-symmetry transition of double-sided adhesive tapes.
abstract: We report on the debonding process of a double-sided adhesive tape sandwiched between two glass plates. When the glass plates are separated from each other at a constant rate, a highly asymmetric extension of top and bottom adhesive layers and bending of the inner film are observed first. As the separation proceeds, the elongation of both layers becomes symmetric, and the inner film becomes flat again. When this happens, there appears a local maximum in the force-displacement curve. We explain this asymmetry-symmetry transition and discuss the role of the bimodal force-displacement relation of each adhesive layer. We also discuss the effect of the inner film thickness and the separation rate on the debonding behavior, which causes undesirable early detachment of the double-sided adhesive tape in a certain condition.
authors.affiliation: Research Center for Advanced Biomechanics, Kyushu University, Fukuoka 819-0395, Japan. yamaguchi@mech.kyushu-u.ac.jp
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Yamaguchi
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Muroo
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Sumino
authors.forename: Masao
authors.initials: M
authors.lastname: Doi
mesh_terms: D000268:Adhesiveness; D000269:Adhesives / Q000737:chemistry*; D003198:Computer Simulation; D005898:Glass / Q000737:chemistry*; D008956:Models, Chemical; D053832:Surgical Tape
chemical_list: D000269:Adhesives