The Interfacial Shear Rheometer ISR-1 allows the measurement of interfacial shear properties of layers between two fluid (liquid/liquid or liquid/gas). It allows unique shear rheological experiments. Shear experiments are most useful for polymer and mixed polymer-surfactant adsorption layers and insoluble monolayers and give access to interaction forces in two-dimensional layers. Dilational interfacial properties are most frequently studied for soluble adsorption layers of surfactants and mixtures of polymers and surfactants.
Interfacial Shear Rheometer ISR-1
The ISR-1 Interfacial Shear Rheometer allows the measurement of interfacial shear elasticity and viscosity of layers between two fluids (liquid/liquid or liquid/gas).
Range Interfacial Shear Viscosity | 1µNs/m to 100 mNs/m |
Range Interfacial Shear Elasticity | 1µPam to 100 mPam |
Range of frequency | 0.2 to 0.02Hz |
Dimensions (LxWxH) | 50x50x70cm (20x20x28’’) |
Weight | 50kg (110 lb.) |
The principle is a torsion pendulum. Different measuring bodies are available to work at liquid surface or interfaces between two immiscible liquids.
- Time dependencies over hours of adsorption time
- Shear elasticity and viscosity of a surface layer
- Frequency range between 0.2 to 0.02 Hz
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