2023 Volume 59 Issue 1 Pages 17-24
When a solid is partially immersed in a liquid, the fluid surface near the contact line generally rises, thereby forming meniscus. It is well known that meniscus formation strongly depends on the surface topography of solids, but most studies have been conducted on low viscosity liquids and there have few studies using high viscosity ones, especially viscoelastic ones which are the main components of adhesives. In this study, we investigated the influence of the shape and curvature of the solid surface on the meniscus formation by viscoelastic butadiene oligomer, using theoretical calculations and experiments. As a result, we found that the size of the meniscus was limited by the curvature of the solid surface. The theoretical calculations showed relatively good agreement with the experimental results, indicating the possibility of applying the equations to viscoelastic materials.
