Physical chemistry of highly concentrated emulsions

Multiple‐Level Porous Polymer Monoliths with Interconnected Cellular Topology Prepared by Combining Hard Sphere and Emulsion Templating for Use in Bone Tissue Engineering

“…A high internal phase was prepared with an aqueous droplet phase (75 vol%) and an introduction of a photoinitiator and toluene to the continuous phase to lower the emulsion viscosity. One of the problems associated with the preparation of concentrated emulsions is the significant increase in viscosity, limiting the processability that is an important parameter in this case.…”

“…A high internal phase was prepared with an aqueous droplet phase (75 vol%) and an introduction of a photoinitiator and toluene to the continuous phase to lower the emulsion viscosity. One of the problems associated with the preparation of concentrated emulsions is the significant increase in viscosity, [28] limiting the processability that is an important parameter in this case. So prepared high internal phase emulsion was then introduced into previously constructed PMMA template by applying suction under reduced pressure in order to evenly fill the cavities of the PMMA template.…”

Normal stress measurement in foams and emulsions in the presence of slip

“…Yielding, flow behavior and viscoelasticity of concentrated emulsions have been studied extensively by Mason and coworkers [10][11][12] and Malkin and coworkers [13][14][15], and micromechanical models have been introduced for the shear modulus and yield stress of concentrated emulsions in terms of droplet size, surface tension and volume fraction. The rheological study of foam and emulsion flows is challenging because the deformation of these materials may be heterogeneous [16], and there may be residual stresses and uncontrolled trapped plastic strains [17].…”

Formation of concentrated emulsions in heavy oil

“…Fig. 4 shows that the obtained emulsions demonstrate viscoplastic properties that are characteristic of concentrated emulsions [14]. Meanwhile, it is worth mentioning that the yield stress for both emulsions (EM3 and EM4) is low, equal to 2.1 and 3.0 Pa, respectively.…”

“…The physics and rheological properties of such highly concentrated emulsions are reviewed in [14]. The creation of emulsions with such (or maybe more complicated) morphology would allow for a sharp decrease in the viscosity while the strength of their structure is expected to be not too high.…”