Dispersion stability

Dispersions are unstable from the thermodynamic point of view; however, they can be kinetically stable over a large period of time, which determines their shelf life.

This time span needs to be measured in order to ensure the best product quality to the final consumer.

[1] These destabilisations can be classified into two major processes: Multiple light scattering coupled with vertical scanning is one of many techniques monitor the dispersion state of a product, identifying and quantifying destabilisation phenomena.

The backscattering intensity is directly proportional to the size and volume fraction of the dispersed phase.

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