Accession Number : ADA186117
Title : Effect of Peel Angle on Peel Force.
Descriptive Note : Technical rept.,
Corporate Author : AKRON UNIV OH INST OF POLYMER SCIENCE
Personal Author(s) : Miller, Richard S
PDF Url : ADA186117
Report Date : Oct 1987
Pagination or Media Count : 24
Abstract : Measurements of peel force P per unit width are reported for samples of three adhesive tapes, adhering to two different substrates. In all cases, the work of detachment per unit area of bonded interface was found to depend upon the angle theta of detachment, increasing as theta increases. This effect is attributed to dissipation of energy in bending the tape away from the substrate at the line of detachment, to a greater degree as theta increases. Extrapolation to theta = 0 is suggested as a simple way of minimizing contributions to the observed work of detachment that arise from bending an imperfectly-elastic adhering layer as it is peeled away from a flat rigid substrate. But at small peel angles the tape tends to stretch appreciably. Peeling at 45 deg is recommended to minimize both effects. Keywords: Adhesion, Adhesives, Bending, Detachment, Fracture energy, Fracture mechanics, Peel angle, Peeling, Separation, Strength.
Descriptors : *ADHESIVE TAPES, *PEEL STRENGTH, ADHESION, ADHESIVES, ANGLES, BONDED JOINTS, DISSIPATION, ENERGY, FRACTURE(MECHANICS), INTERFACES, RIGIDITY, SUBSTRATES, WIDTH
Subject Categories : Adhesives, Seals and Binders
Distribution Statement : APPROVED FOR PUBLIC RELEASE