Synergistic effects in binary mixtures of alkylpolyglucosides with anionic and nonionic surfactants

The alkyl polyglucosides belong to a new class of non-ionic surfactants which display synergistic properties in their binary mixtures with anionic and non-ionic surfactants. The surface and colloidal properties of the alkyl polyglucoside/surfactant binary mixture solutions, such as wetting capacity, foaming and critical micelle concentration have been evaluated. Rheological measurements were made only for 28.6% active matter in solutions containing alkyl polyglucoside/surfactant at miscellaneous mass ratios. The alkyl (C 12 ) polyglucoside product (DP 2.06; 1.2% fatty residual alcohol and 28.6% active matter), as well as alkyl (C 12 -C 15 ) ethoxy (2.5 EO) sulphate sodium salts and alcohol (C 12 -C 13 ) ethoxylates (6.5 EO) as anionic and, respectively, non-ionic surfactants were used. The synergistic effects in foaming, wetting and other properties are scattered over a large interval of concentration in all the surveyed binary mixtures. However, the comprehensive data may be employed in an accurate prediction of the above mixtures behaviour as surfactants.