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China Surfactant Detergent & Cosmetics ›› 2019, Vol. 49 ›› Issue (1): 16-18.doi: 10.3969/j.issn.1001-1803.2019.01.004

• Development and application • Previous Articles     Next Articles

Study of the performance of the blends of sugar-based cationic Gemini surfactants and sodium dodecyl sulfate

WANG Jun1,YANG Xu-zhao1,LI Ni-ni2,ZOU Wen-yuan1   

  1. 1.College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450002, China
    2.Xi’an Kaimi Co., Ltd., Xi’an, Shaanxi 710061, China
  • Received:2018-06-06 Revised:2018-11-30 Online:2019-01-20 Published:2019-03-06

Abstract:

The stability and surface activity of the blends of sugar-based cationic Gemini surfactants (SGCS) and sodium dodecyl sulfate (K12) were studied. The results show that the blend systems being composed of K12 and SGCS with different chain length have exhibited good stability in a wide rang of molar ratios of SGCS/K12. For the mixture of C14-SGCS/K12, an obvious synergistic effect has been observed. The critical micelle concentration (cmc), surface tension at cmc (γcmc) and the efficiency of reducing surface tension (pc20) of the mixture of n(C14-SGCS)∶n(K12)=3∶5 are 1.1×10 -5 mol/L, 23.69 mN/m and 5.48, respectively, which are obviously superior to the performance of individual C14-SGCS or K12.

Key words: sugar-based surfactant, Gemini surfactant, cation, surface tension, blend

CLC Number: 

  • TQ423.12