Surface Science Blog

What is Interfacial Rheology?

Posted by Susanna Laurén on May 3, 2017

  

When surface active molecules are present in the solution, they tend to adsorb in the gas-liquid or liquid-liquid interface. Surface active agents have hydrophobic and hydrophilic part, when at the interface, they orient so that hydrophilic part is in water-based solution and hydrophobic part in air or oil phase.

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Topics: rheology

Complex fluid-fluid system can be characterized with interfacial rheology

Posted by Maiju Pöysti on April 28, 2016

Complex fluid/fluid systems, such as emulsions, gels and various surfactant solutions, are the basis of most of our everyday consumer products from detergents to healthcare, but also found in biology and industrial processes such as in enhanced oil recovery and mineral processing.Typically these complex systems include surface active constituents that creates adsorbed layer on the fluid-fluid interfaces. Properties of this adsorbed layer are important to define quality of the final product.

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Topics: rheology