Gossipol smolasini monoetanolamin bilan modifikatsiyalash asosida yangi sirt-aktiv modda olish va uning kolloid-kimyoviy xossalarini o'rganish
Annotatsiya
This study investigates the synthesis of a new surfactant through modification of gossypol resin with monoethanolamine and evaluates its colloid-chemical and surface-active properties. Gossypol resin was first hydrolyzed in an alkaline medium and subsequently modified with 10–30% monoethanolamine at 70–80 °C for 2–6 hours. The structure of the obtained product was investigated by IR spectroscopy, while its surface-active properties were evaluated through surface tension, critical micelle concentration, foam formation, and foam stability measurements. The optimal synthesis conditions were determined as 20% monoethanolamine and a reaction time of 4 hours, providing a product yield of 82%. The synthesized surfactant reduced surface tension to 46–47 mN/m and showed a critical micelle concentration of 1.0–1.2%. The maximum foam volume reached 178 cm³ and foam stability was 70–75%. IR analysis revealed new absorption bands at 1200–1300 cm⁻¹ corresponding to the formation of C–N bonds. The results indicate that the modified gossypol resin-based surfactant has potential applications in flotation processes, stabilization of colloidal systems, and industrial waste processing technologies.