Thin surfactant layers at the solid interface

Evidence for ball-bearing mechanism of microparticulated whey protein as fat replacer in liquid and semi-solid multi-component model foods

“…The sensitivity of adhesion and spreading of fat droplets on the surfaces determines friction (Dresselhuis, Stuart, van Aken, Schipper, & de Hoog, 2008). The adhesion and spreading of fat droplets is related to the amount and type of emulsifiers used (Bellamy, Godinot, Mischler, Martin, & Hartmann, 2009;Grosse & Estel, 2000). It is reported that protein-rich emulsions (1% WPI) have high mechanical stability against rupture of the droplets and therefore are less prone to spread on solid surfaces .…”

Effect of adsorption of laureth sulfonic acid type anionic surfactant on the wetting property of CaCO3 substrate

“…CaCO 3 has 16 been used as oxidation inhibitors, detergents and dispersant to 17 control deposit formation, either by inhibiting the oxidative 18 breakdown of the lubricant or by suspending the harmful products 19 already formed in the bulk lubricant. However, one of the most 20 problematic issues for the use of CaCO 3 is the hydrophilic property, 21 and this problem makes CaCO 3 nanoparticles very difficult to be 22 used widely [4,5]. For example, CaCO 3 particles cannot be used for 23 the production of polymeric composites, since the high energetic 24 hydrophilic surface of the CaCO 3 is not compatible with the low-25 energy surface of hydrophobic polymers such as polyethylene and 26…”

“…For example, 29 the hydrophobic species containing reactive functional groups 30 such as silane coupling agents [9][10][11], titanate coupling agents 31 [12,13], aluminate coupling agents [14,15], or fatty acid such as 32 stearic acid [16][17][18][19][20] can alter the wetting and dispersion properties 33 of CaCO 3 particles. It is well-known that better wettability as well 34 as enhanced mechanical properties of particles can also be 35 achieved through proper interaction with surface active com-36 pounds [2,8,[21][22][23][24][25]. As a result of the interaction with surface 37 active compounds, a surfactant film is formed on the particle 38 surface.…”

“…27 The modification of CaCO 3 surface by a variety of surface 28 modifiers has been extensively studied [2,5,[7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. For example, 29 the hydrophobic species containing reactive functional groups 30 such as silane coupling agents [9][10][11], titanate coupling agents 31 [12,13], aluminate coupling agents [14,15], or fatty acid such as 32 stearic acid [16][17][18][19][20] can alter the wetting and dispersion properties 33 of CaCO 3 particles.…”

Adsorption Properties of Gemini and Monomeric Cationic Surfactants on Sandstone and Silica Nanoparticles

“…Surfactant injection as a method of a chemical flooding can enhance oil recovery by reducing the interfacial tension (IFT) between oil and water, forming O/Wemulsions, altering the rock wettability and thus resulting from the adsorption of surfactants on reservoir rock [1] [2] [3]. The adsorption of different surfactants, including anionic surfactant, nonionic surfactant, and zwitterionic surfactant on various solid/water interfaces, has been extensively studied by many authors [4]- [12].…”