The Weissenberg Rheogoniometer is a fully automated rheological facility which is capable of characterizing the visco-elastic properties of polymers over a wide time scale and type of deformation. This instrument can measure steady and dynamic shear properties on materials ranging from low viscosity fluids to high modulus materials, and at temperatures from -150 to 400 C.

Examples

• The processing / morphology / property relationships in immiscible polymer blends are influenced by the rheological properties. This instrument is used to study the influences of the compatibilizing agents on the rheological properties of polymer blends. Frequency sweep experiments are conducted at different temperatures for blends containing different compatibilizers to determine their dynamic viscosities and moduli.
• This instrument is also used to study the compatibilities of polymer blends by analyzing the moduli of the components and of the blends.