Representative drop sizes and drop size distributions in A/O dispersions in continuous flow stirred tank

Highly permeable macroporous polymers via controlled agitation of emulsion templates

“…There are many equations used for the estimation of droplet sizes in an emulsion [25] however most of these are for steady state systems involving dilute emulsions (LIPEs). In a steady state system the rate of droplet coalescence and droplet break-up are equivalent such that the average droplet size does not vary with time.…”

“…In a steady state system the rate of droplet coalescence and droplet break-up are equivalent such that the average droplet size does not vary with time. Several equations [25,[35][36][37] relate some form of power or energy input (Wkg -1 or Jm -3 ) to the Sauter mean droplet diameter. The equivalent in an emulsion templated macroporous polymer is the Sauter pore diameter (d 32 ) (Equation 6) as the pore size is determined by the droplet size at the gel point of the polymerization of the continuous phase.…”

“…Much work has been done on predicting the droplet size of emulsions produced in agitated vessels [25][26][27][28], it is therefore suggested that the morphology of emulsion templated macroporous polymers can be predicted in a similar fashion. The main difference between droplet size in an emulsion and pore size in an emulsion templated macroporous polymer is that after emulsification and before the gel point of the polymerization is reached, coalescence of droplets can occur within the emulsion.…”

Relation between hydrodynamics and drop size distributions in pump–mix mixer

“…In order to reduce the sampling error, some of the measurements were repeated by taking multiple (three) samples. This technique has been applied in the past for similar systems at similar hold-up levels (Singh et al, 2008). The immobilized drops were transferred onto a glass slide, which was kept under a microscope fitted with a camera.…”

Review on Measurement Techniques for Drop Size Distribution in a Stirred Vessel

“…This technique has been applied to characterize particulate systems such as nucleation and dissolution behavior of crystallizing suspension, particle measurement in emulsion polymerization, and bubble size distributions in a gas−liquid contactor. 20 Illumination is provided at the PVM probe tip by light produced from six near-IR lasers which are focused using a hexagonal array of lenses. Drops passing through the illuminated region will scatter the light, and the backscattered light will be collected by a lens system inside the probe.…”