Abstract
The anionic-nonionic surfactants have attracted great interest due to its particular molecular structure. To compare the effect of anionic headgroup on the performance of anionic-nonionic surfactants, the adsorption behavior at air/water and oil/water interface, spreading performance and thermal stability of anionic-nonionic surfactants, sodium alkyl polyethylene oxide carboxylate (AE3C), sodium alkyl polyethylene oxide sulfate (AE3S), and sodium alkyl polyethylene oxide sulfonate (AE3SO), were investigated by surface tension, interfacial tension, contact angle techniques and thermogravimetric analysis. The results of static surface tension and interfacial tension show that the AE3C has the best interfacial activity. Adsorption process for surfactants concentration above cmc is a mixed diffusion–kinetic adsorption mechanism, and below cmc is diffusion-controlled mechanism. Spreading ability on paraffin films of the three surfactants decreases in the order AE3C>AE3S>AE3SO. The thermal stability is in the sequence of AE3C>AE3SO>AE3S.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
