Adsorption from mixed solutions of triton X-100 and sodium n-alkyl sulfates on silica gel

Adsorption of Alkyltrimethylammonium Bromide and Alkylpyridinium Chloride Surfactant Series on Polytetrafluoroethylene Powder

“…4 that the second plateau region is located nearer to the CMC of the surfactant, above which adsorption remains more or less constant. The concentration of monomer remains constant above the CMC; thus one may conclude that the observed constancy of adsorption above the CMC is due to the adsorption of monomers only and not micelles (9,10). The concentration at which charge reversal takes place depends upon the chain length of the surfactant, indicating that apart from electrostatic interaction, the negatively charged carboxylate groups ( -COO 0 ) on the the effect of solvent in the interfacial region, as well as of PTFE surface.…”

Coadsorption of Cationic–Nonionic Surfactant Mixtures on Polytetra Fluoroethylene (PTFE) Surface

“…It has been previously obFor all the systems, values of the critical hemimicelle concen-served (16) that, due to interaction and mixed micellization tration of CTAB obtained by adsorption isotherm match quite of ionic and nonionic surfactants, a considerable decrease in well with those obtained by zeta potential measurements for CMC value was obtained which further reduces the monodifferent binary systems as shown in Tables 1-3. mer concentration. The surfactants get adsorbed in the monomeric form only and not in the micellar state (15,17) and Adsorption of nonionic surfactants. The adsorption of NP-13 from the mixtures of CTAB and NP-13 is also en-hence adsorption is governed by the fraction of surfactant in the monomeric form in the mixed surfactant systems.…”

Effect of cationic surfactant on the adsorption characteristics of anionic surfactant on cellulose surface

“…Designing mixed surfactant systems for applications has been mostly by trial and error [3] and in the literature mostly anionic-nonionic surfactant mixtures have been investigated [4][5][6][7][8]. The studies on cationic-anionic surfactant mixtures are very few in view of the 'fear' of precipitation.…”