Stabilization of High Ionic Strength Slurries Using the Synergistic Effects of a Mixed Surfactant System

Stabilization of High Ionic Strength Slurries Using Surfactant Mixtures: Molecular Factors That Determine Optimal Stability

“…The sedimentation results for the mixtures investigated are given in Figs. 5 and 6 for C 12 and C 18 nonionic surfactants, respectively.…”

“…As discussed in Palla and Shah (12), this stabilization process is highly dependent on the choice of both ionic and nonionic surfactant. In the current investigation, the factors which affect the stabilization mechanism shown in Figs.…”

“…In previous work (12), it has been shown that synergistic mixtures of ionic and nonionic surfactants are capable of stabilizing slurries in which either ionic or nonionic surfactants are insufficient stabilizers. The stabilization mechanism has been proposed and is presented in Fig.…”

“…2. The mechanism of high-ionic-strength slurry stabilization by the synergistic mixture of anionic and nonionic surfactants [from (12)]. molecule is exposed to both the surface and the aqueous solution, similarly to the behavior of ionic surfactants.…”

Synergistic effect of polymer-surfactant mixtures on the stability of aqueous silica suspensions

“…The stabilization is brought by the steric barrier created by the hydrophilic PEO group of the nonionic surfactant extending into the solution. 7,20 …”