Y. S. So, J. G. Youn, M. S. Han, D. Y. Kim, C. K. Park, Hyundai Heavy Industries, Co. Ltd., Ulsan, South Korea
This study is to evaluate the effect of bonding parameters such as dry film thickness and aging time on the shear strength the joint between protective coating and epoxy resin in cryogenic vessels. Shear adhesive strength of the joint was strong dependent on the dry film thickness and aging time. The shear strength of the joint decreases with an increase in dry film thickness but increases with an increase in aging time at ambient. As a result of fracture analysis, fracture occurred within the protective coating layer. This indicates that inherent properties of the protective coating is principal factor controlling the shear strength of the joint.
Summary: Effect of bonding procedure parameters on adhesive strength in the coated metal to polymer joint has been studied. As a result of this study, it was found that inherent fracture strength of the coating is a principal factor to determine the shear strength of the joint.
