Interfacial Rheology System
The Interfacial Rheology System (IRS) allows rheological measurements on interfacial layers at liquid/liquid and gas/liquid interfaces. Typical applications are protein films or inorganic surfactant networks. The measurement is performed with a bicone measuring geometry or De Nuoy Ring positioned directly in the interface. The influence of the bulk and upper phase of the flow field in the bicone system is compensated in an analysis optionally performed in the rheometer software after the measurement.
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Technical highlights
- Rheological measurements of interfacial films at gas/liquid and liquid/liquid interfaces
- Measuring system: Bicone 68 mm, 2 x 5°, or De Nuoy ring
- Peltier temperature control: 5 °C to 70 °C
- Patented normal force sensor in the air bearing is used for bicone and De Nuoy ring positioning
Software
- Interfacial flow field analysis as described in: Soo-Gun Oh, John C. Slattery: Disk and Biconical Interfacial Viscosimeters. Journal of Colloid and Interface Science. Vol. 67, No. 3, 516-525. December 1978
- Display of all recorded and calculated interfacial data
- Predefined interfacial rheology workbooks
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Documents
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Combined rheological methods - From rheo-optics to magneto-rheology and beyond Application Reports en