The Effect of Spacer Chain Length on Foam Stability of Mixed Amine Gemini Surfactant/NaOl by Molecular Dynamic Simulations.

Foam stability critically determines the efficiency of the mineral flotation process. Although the mixed amine Gemini surfactant/anionic surfactants exhibit excellent flotation performance, atomic-level investigations of the mechanism of their impact on foam stability remain limited. This study employs molecular dynamics simulations to investigate the self-aggregation behavior of mixed amine Gemini surfactant/sodium oleate (NaOl) systems with varying spacer chain lengths at the air/water interface.