Cambridge Polymer Group has some of the world's leading authorities in extensional rheometry. We have designed and built a Capillary Breakup Extensional Rheometer (CaBER®), which is a rapid and easy method of measuring the extensional viscosity of polymer fluids. Let us help you design an applicable test array to fully characterize your material's response to an extensional flow.
For more academic level testing, Cambridge Polymer Group also designs filament stretching rheometers (FiSER™). Although there is no international standard for testing the extensional properties of fluids, CPG can provide analytical testing services on these materials and can add a deep understanding of the processes at work to aid in characteriziation. Systems examined so far include: