Compared to sulfobetaine fluorocarbon surfactant (FS)

the foaming properties and oil resistance of ordinary hydrocarbon surfactants are bad.Alcohols can usually affect self-organizing behavior and improve foaming properties of surfactants.The complexed systems of FS and anionic hydrocarbon surfactant (AOS) were investigated by using the Ross-Miles method in the paper.The influence of alcohols on the foaming properties of the complexed system was studied.The results showed that the complexed system FS/AOS still had good foam characteristics when the contents of methanol

ethanol

isopropanol were 5%

3%

3% respectively.The foaming performance and foam stability were still good when the kerosene content was 60%—80% after adding the alcohol.The effect of different carbon number alcohols on the complexed systems was as follows.By adding methanol

the foaming performance was the best

the next was isopropanol

and the worst was ethanol.However

by adding isopropanol

the foam stability of the complexed systems was worse than methanol and ethanol.