The force at equilibrium can then be used to determine the absolute surface or interfacial tension.

This effect is known as interfacial tension.

Spinning drop method: This technique is ideal for measuring low interfacial tensions.

It refers to either using the fluids with low interfacial tension or working at very high angular velocities.

This amount of energy, as described by interfacial tension, varies for different combinations of materials.

Two, the meniscus shape is dependent on the interfacial tension between the glass wall of the burette and the solution.

Surfactants reduce the interfacial tension between oil and water by adsorbing at the liquid-liquid interface.

Interfacial tension of any liquid that gives a shape very close to a cylinder at the equilibrium point, can be estimated using this equation.

= Interfacial tension between the solid and gas

Reducing the interfacial tension will stabilize the colloidal system by reducing this driving force.

Drop volume method: A method for determining interfacial tension as a function of interface age.

One disadvantage of this technique is that it can not bury the rod into the surface to measure interfacial tension between two liquids.

Hydrogels have low interfacial tension, meaning cells can easily migrate across the tissue-implant boundary.

There are two main theories to explain the effect: the interfacial tension or 'water bridge' theory, and the electrostatic theory.

This method is widely used in many different applications such as measuring the interfacial tension of polymer blends and copolymers.

The compatibilization has been tested by reduction in interfacial tension and steric hindrance against coalescence.

Pendant drop method: Surface and interfacial tension can be measured by this technique, even at elevated temperatures and pressures.

Temperature affects not only the viscosity, but also interfacial tension in the case of non-ionic surfactants or more generally interactions forces inside the system.

Interfacial tension

:*γ is the solid-liquid interfacial tension

This empirical observation can be rationalised by considering the interfacial tension at the oil-surfactant and water-surfactant interfaces.

Some atmospheric effects on the functionality of adhesive devices can be characterized by following the theory of surface energy and interfacial tension.

The spinning drop method (rotating drop method) is one of the methods used to measure interfacial tension.

It was first implemented by Canham in 1994 and involves superheating the liquid pore above the critical point to avoid interfacial tension.

Interfacial Tension