Abstract
Shear viscosities of sodium dodecylsulfate (SDS) stabilized, deformability controllable polydimethylsiloxane (PDMS) emulsions are reported over a wide volume fraction range (0.01–0.72). Droplet deformability dependent shear thinning behavior is observed as the volume fraction increases. Shear viscosities at a shear rate of 1000 s −1 are converted into relative viscosity versus volume fraction curves and comparison with the Krieger–Dougherty equation for hard spheres has allowed determination of the critical deformation volume fraction. “Hard” droplets deform at the colloidal glass transition volume fraction ( ϕ g), whereas “soft” droplets deform at volume fractions well below ϕ g. New insight into the role of droplet deformability on emulsion rheology is achieved.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
