Effect Of Complex Formation In Surfactant Solutions On Interfacial Interaction In Titanium Dioxide Suspensions
EFFECT OF COMPLEX FORMATION IN SURFACTANT SOLUTIONS ON INTERFACIAL INTERACTION IN TITANIUM DIOXIDE SUSPENSIONS
M.M. Soltys, N.H. Tkachenko, V.D. Havryliv, O.A. Burka
Lviv Ivan Franko National University, Lviv, Ukraine
The surfactant mixtures are widely use in modern technology processes of composite materials, covers and films production. Most of literature data concern the studying properties of solutions of the surfactants mixtures. Interest to them is due to synergism effect, which arises by reason of interaction among of the surfactant mixture components.
The investigation results of effect relation of polymetacrylic acid concentration (PMAA) and oxyethylatic 1.1.3.3-tetramethylbythylphenol with oxyethylation degree 9.5 (TRITON X-100), pH and complex formation process at aggregative-sedimentation stability of aqueous dioxide titanium suspensions of rutile modification in this report are listed.
Specific behavior of the investigated systems, apparently, is due to PMAA and TRITON X-100 complex formation wide within of individual component concentrations, which is consistent with literary data. System transition from homogeneous condition to heterogeneous has been estimated on account of optical density measuring of aqueous surfactant solutions.
The reason of phase’s separation, probably, is hydrophobic-lypophylic balance variation with increasing of surface groups hydrophobization. This transition limit at pH decreasing displaces in region of lower PMAA concentrations and highest TRITON X-100 concentrations. The heterogenic system limits and system state effects on stability of dioxide titanium dispersions were estimated also. The best dispersion stability as in heterogenic region reflects within the range of homogeneous PMAA and TRITON X-100 ratio.
Increase of the dispersion stability in conditions of joint action, apparently, due to intermolecular interaction effect of PMAA and TRITON X-100 molecules at adsorption process of these components on solid surface, forms structure of adsorption layers with optimum hydrophylic-lypophilic balance value.
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