Study on the Synthesis and Surface Activities of Disodium Alkyl Polyglucoside Citrate

Abstract

Abstract A new method of synthesizing disodium alkyl polyglucoside citrate surfactant has been reported in the paper, in which citric acid anhydride was firstly prepared, and then reacted with alkyl polyglucoside to obtain ester. The structures of products were indicated by infrared spectroscopy. Moreover, the surface activities of raw materials and their corresponding products were investigated. The results show that products exhibit low surface tension in 28 mN/m. Comparing with raw materials, the disodium alkyl polyglucoside citrate surfactants possess better emulsification stabilities to oil acid, good foam abilities and excellent hard water-resistant properties.