University Chemistry ›› 2015, Vol. 30 ›› Issue (1): 41-44.doi: 10.3866/PKU.DXHX20150108

• Survey of Chemistry • Previous Articles     Next Articles

Effect of the Hydrophilic Head Group Size of Surfactant on the Mixed Systems of Oppositely Charged Surfactants

Kahaer   

  1. Xinjiang Agricultural Vocational College, Changji 831100, Xinjiang, China
  • Published:2015-02-25

Abstract:

The mixed systems of a cationic and an anionic surfactant have been suggested to be avoided since they were prone to forming precipitates. However, increasing the head group size of the surfactants, the mixed systems would not form precipitates in a large mixing ratio, and strong synergetic effect can be produced. The surfactant with large head group may even be able to increase the water solubility of an oppositely charged surfactant.

Key words: Hydrophilic head group, Surfactant, Positive and negative mixing system, Electrostatic interaction