Synergistic Effect on Wettability of Mixtures of Amine Oxides, Alkylpolyglucosides, and Ethoxylated Fatty Alcohols

Abstract

The mixture proportions of three surfactants, i.e. an alkylpolyglucoside (APG), an ethoxylated fatty alcohol, and an amine oxide (AO), were optimized by applying Response Surface Methodology in order to achieve the surfactant ratio that produces the highest wetting power. The synergistic effect of the binary samples of AO with the other surfactants was firstly verified. An improvement in this synergistic effect on wettability was found in the ternary mixture. In the experimental range analyzed, the surfactant concentration ratio that produced the highest wettability was a composition with 19.3 % APG, 30.1 % ethoxylated alcohol, and 50.6 % lauramine oxide.

Synthesis and Performance of Bio‐Based Amphoteric Surfactants

“…As expected, the N ‐oxide sugar‐derived surfactants showed better water solubility in comparison to the N ‐oxide surfactant LA. Previous studies have shown an improved solubility by the introduction of an N ‐oxide functional group [32] . This also applies for the comparison of N ‐GalA1.12 and its starting material GalA1.12 , [26,27] which have a solubility of 7 % and 1 %, respectively.…”

“…Previous studies have shown an improved solubility by the introduction of an N-oxide functional group. [32] This also applies for the comparison of N-GalA1.12 and its starting material GalA1.12, [26,27] which have a solubility of 7 % and 1 %, respectively. Overall, the bio-based surfactants derived from monosaccharides showed promising surfactant properties.…”