Capillary Rheometer

NETZSCH manufactures an array of rheometers for Research, Product Development and Quality Control. A rheometer is a device used to measure the rheological properties of materials which describes the interrelation between force, deformation and time.

Unlike a viscometer , which can only measure the viscosity of a fluid under a limited range of conditions, a rheometer is capable of measuring the viscosity and elasticity of non-Newtonian materials under a wide range of conditions. Some of the most important properties that can be measured using a rheometer include viscoelasticity, yield stress, thixotropy, extensional viscosity, creep compliance and stress relaxation behavior, as well as process-relevant parameters such as die swell, melt fracture.