Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 08, 2024 - September 11, 2024
Resin materials are widely used in industrial fields as adhesives, coatings, etc. When used as adhesives or coatings, there is an adhesive interface between different materials, it is necessary to understand the adhesion mechanism to ensure their reliability. Because there are still many unclear points in the adhesion mechanism., it is necessary to evaluate the bonding strength by quantitative test methods to understand the adhesion mechanism. However, it isn’t easy to evaluate the bonding strength using conventional methods due to the influence of the specimen size and shape. In this study, the test method to evaluate the bonding strength using a small column resin formed on the surface of the adherend was proposed, and the effect of column diameter and shape on bonding strength obtained in this method was discussed. The main conclusions are summarized as follows. (1) The bonding strength decreased as the column diameter decreased by increasing the deformation of the resin column at the contact portion to the shear tool. (2) The bonding strength of the cut-out columnar specimen increased due to reduced deformation of the resin column. (3) The bonding strength of the quadrangular prism specimen is independent of the bonding area.
