Extensional Viscosity Measurement using Force Tensiometer

A K100 force tensiometer was used to find the extensional viscosity of Newtonian fluids such as water and oils. We tracked the thinning of fluids driven by capillarity while considering resistance from inertia, viscosity, and other stresses induced by the extensional deformation. Results help understand extensional viscosity characteristics, the K100 force tensiometer’s versatile utility for viscosity analysis, and validate mathematical models for D10, S60, and D1000 oils.