Electrophoretic mobility of concentrated carbon black dispersions in a low-permittivity solvent by optical coherence tomography

Effect of alkyl functionalization on charging of colloidal silica in apolar media

“…On the other hand, the ''more, hydrophobic soft sulfosuccinate anions" adsorbed favorably on the octylsilane-treated TiO 2 , producing negatively charged particles. The same group of authors later measured the mobility of carbon black dispersed in AOT solution in toluene and found that the particles were negatively charged [25], similar to the observation of Kitahara et al [20]. Preferential adsorption of the sulfosuccinate anions on the hydrophobic carbon black was also proposed as the charging mechanism.…”

“…Additionally, the surface of many commercial carbon black particles have been reported by various groups of investigators, including Fowkes et al [16] and Kozak et al [39], to contain a number of acidic surface sites which interact with the polar head of oil-soluble surfactants, particularly those with highly basic head groups like polyisobutylene succinimide. Nonetheless, the proposed mechanism of Kitahara and coworkers has been accepted and adopted to explain charging of apolar colloids in a number of systems [23][24][25].…”

“…However, the usage of such terminology in the context of particle charging in apolar media might not be ideal since it refers to wetting properties of the surface by water, which exists only in trace amounts, if any, in the apolar systems. Nonetheless, it should be noted that many researchers have used such a term to describe the surface properties of the particles and to explain their proposed charging mechanisms [20][21][22][23][24][25].…”

Wet compounding with pyrolytic carbon black from waste tyre for manufacture of new tyre – A mini review

“…In the WC process, CB particles cannot directly contact with the micelle, let alone directly form a reinforcing structure (Smiechowski and Lvovich, 2005). CB can only be dispersed around the micelle (Patel et al, 2010). This is because of NRL without strongly mechanical treatment and isolation of the protective layer of the micelle.…”

Preparation of black pigment with the Couette–Taylor vortex for electrophoretic displays

“…Among these variables, the zeta potential of the pigments is critical in the performance of the EPD. Because the speed under an electric field is a function of the magnitude of the electric field and the zeta potential of charged pigments, a higher zeta potential induces a more rapid movement of the charged pigments (Patel et al, 2010). Generally, the zeta potential of a pigment is manipulated by the addition of a charge control agent (CCA), which adsorbs onto the surface of the pigment (Park et al, 2012).…”