Strong synergistic effect of cationic hydrocarbon surfactant and novel nonionic tri-block short-chain fluorocarbon surfactant mixtures on surface activity, wettability and solubilization

Abstract Mixing hydrocarbon surfactants with fluorocarbon is still an important strategy to improve the economic benefits and performances of expand their range application. Herein, we prepared a novel kind hydrocarbon-fluorocarbon surfactant mixtures via mixing cationic surfactant, cetyltrimethylammonium bromide (CTAB), tri-block nonionic short-chain (F 9 EG 13 F ) in aqueous solution. The results showed that adding small CTAB amount (the molar fraction mixture ( x 1 was 0.2) could greatly reduce its critical micelle concentrations cmc from 0.408 mmol/L 0.191 mmol/L. At this , contact angle minimum (57.7 °) at 100 s on polytetrafluoroethylene film, which even lower than . Besides, CTAB/F possessed better colloidal stability solubilization ability toward hydrophobic dye (Sudan І) outstanding binary benefited non-ideal strong synergistic effect evidence be used practical applications instead individual thereby reducing cost Graphical abstract