Stringiness, stretching and pinching behavior of formulations

In this contribution, we analyze the stretching and pinching behavior of various model fluids using dripping, dripping-onto-substrate rheometry, and a home-built stretching device that applies constant stretch velocity. We chase after the influence of surface tension, non-Newtonian rate-dependent viscosity, and elasticity, especially for multicomponent formulations. The experiments rely on high-speed visualization and quantitative analysis of pinching dynamics, supplemented by shear rheology studies.