High Adhesion of Hot-Dip Galvanized Steel and Silicone Adhesive through Si Amorphous Film

Materials procured locally help to minimize CO2 emissions and improve efficiency by reducing the need for transportation. However, such materials may not meet the required performance and quality standards. In a globalized marketplace, companies need to balance these competing demands. One way to do this is through the use of technology to improve the reliability of automotive components. In order to improve the reliability of automotive components whose metal casings are sealed with silicone adhesives, high adhesion technology with water resistance is required to create high adhesion at the interface using silicone adhesives, regardless of the surface condition. Therefore, we evaluated the effect on shear strength of functional groups in a plasma Si-treated film applied to the metal surface of the silicone bonding surface. Our results show that a larger C-H/Si-O ratio in the Si amorphous film produces a higher adhesion technology that improves water resistance.