Guidelines for the Formulation, Composition and Stirring to Attain Desired Emulsion Properties (Type, Droplet Size, Viscosity and Stability)

Special features allow even more flexibility, such as the time and space programming of the formulation, composition and stirring. Practical applications are discussed to illustrate the use of these concepts to attain desired emulsion properties. Emulsions are found in nature, such as rubber latex or milk, but in most cases they are man-made systems, manufactured with a specific goal in mind. The first topic to be discussed is the influence of the physico-chemical aspects of emulsion formulation and composition variables, which determine the state of the system prior to emulsification by stirring. The average droplet size of emulsions goes down, then up, then down and then up again as the optimum formulation region is crossed. A change of property can occur when the point representing an emulsion is transferred from one location to another, for instance by adding water to an emulsion or changing its temperature.