Investigation of Micelle Formation and Foam Stability of a Modified Gossypol-Based Surfactant

This study investigates the micellization behavior, surface activity, foaming ability, and foam stability of a modified gossypol-based surfactant in aqueous solutions. The dependence of surface tension on surfactant concentration was studied and the critical micelle concentration (CMC) was determined. The results showed that surface tension decreased from 72 mN/m to 46–47 mN/m with increasing surfactant concentration. The CMC was determined within the concentration range of 1.0–1.2%, indicating the onset of micelle formation. The maximum foam volume reached 178 cm³, while foam stability was 70–75%. The results demonstrate the ability of the modified gossypol-based surfactant to form stable colloidal structures and indicate its potential application in flotation processes, stabilization of dispersed systems, and as a technological foaming reagent.

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