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China Surfactant Detergent & Cosmetics ›› 2025, Vol. 55 ›› Issue (5): 554-562.doi: 10.3969/j.issn.2097-2806.2025.05.003

• Basic research • Previous Articles     Next Articles

Interactions, surface activity and applications of the mixed system of polyhydroxy cationic surfactant and AES

Shuai Gao1,2,Yajie Jiang1,2,Lu Zhang1,2,Jun Li1,2,Yakui Wang1,2,Zhifei Wang1,2,Tao Geng1,2,*()   

  1. 1. China Research Institute of Daily Chemical Industry, Taiyuan, Shanxi 030001, China
    2. Shanxi Key Laboratory of Functional Surfactants, Taiyuan, Shanxi 030001, China
  • Received:2025-02-18 Revised:2025-04-18 Online:2025-05-22 Published:2025-06-11
  • Contact: *E-mail: gengtao@ridci.cn.

Abstract:

The performance of the mixtures of a polyhydroxy cationic surfactant, MDAE, and an anionic surfactant, sodium fatty alcohol polyoxyethylene ether sulfate (AES), was studied. The interfacial activity, surface tension, critical micelle concentration (cmc), wetting ability and foam stability of the mixed system at different mixing ratios were measured. The results showed that, compared with single surfactants, the cmc of the mixed system significantly decreased, and both surface and interfacial activities were notably enhanced, indicative of significant synergistic effect. At the optimal mixing ratio (n(MDAE) ∶n(AES)=1∶9), the mixed system exhibited good foam stability and strong wetting ability. This work indicated that the synergism between MDAE and AES could significantly improve the surface activity and application performance, and the mixed system had great potential for industrial applications.

Key words: polyhydroxyl, cationic-anionic surfactant mixture, synergy, surfactant

CLC Number: 

  • TQ423