If the fraction of rubber is greater than 40 % phase inversion may be possible when the blend cools, resulting in an amorphous continuous phase, and a crystalline dispersed phase.
22.
The size of the generated droplets is mainly controlled by the flow rates of the continuous phase and dispersed phase, interfacial tension between two phases and the geometry used for the droplet generation.
23.
The dispersed phase is typically ( though not always ) treated in a Lagrangian framework, that is, the dynamics are understood from the viewpoint of fixed particles as they move through space.
24.
The radius of a droplet in the emulsion is dependent on surfactant length, L s, volume fraction of dispersed phase, ? d, and volume fraction of surfactant, ? s.
25.
Based on the nature of interaction between the dispersed phase and the dispersion medium, colloids can be classified as : "'Hydrophilic colloids "': These are water-loving colloids.
26.
"Note 1 " : Macro-emulsions comprise large droplets and thus are " unstable " in the sense that the droplets sediment or float, depending on the densities of the dispersed phase and dispersion medium.
27.
A problem with the Lagrangian treatment of the dispersed phase is that once the number of particles becomes large, it may require a prohibitive amount of computational power to track a sufficiently large sample of particles required for statistical convergence.
28.
A different description : A hydrocyclone is a mechanical device designed to reduce or increase the concentration of a dispersed phase, solid, liquid or gas of different density, by means of centripetal forces or centrifugal forces within a vortex.
29.
From the technological standpoint, a particularly desirable approach to fabricating particulate composites is to coat the matrix or its precursor onto fine particles of the dispersed phase with good control of the starting dispersed particle size and the resultant matrix coating thickness.
30.
"Note 3 " : The diameters of the droplets constituting the " dispersed phase " usually range from approximately 10 nm to 100 ?m; i . e ., the droplets may exceed the usual size limits for colloidal particles.
