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1 Polish Journal of Chemical Technology

1 2024

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Factors Affecting the Phase Inversion Process of Alkyl polyglycol ether C16-18/Fatty Alcohol/Oil/Water System

100%

Zhang W. , Cui D. , Zhang Q. , Zhang D. , Zhu G.

tom Vol. 26, nr 4

64--71

The change of spontaneous curvature of nonionic surfactants is related to temperature. The phase inversion of the emulsion system is induced by temperature change, which is called phase inversion temperature method. Experiments were carried out in which Ceteareth-12 (Alkyl polyglycol ether C16-18) and Ceteareth-20 (Alkyl polyglycol ether C16-18) were used as hydrophilic emulsifiers and fatty alcohol as lipophilic emulsifiers. It was found that the increase of HLB value of hydrophilic emulsifier, the decrease of fatty alcohol content or the increase of carbon atom number of fatty alcohol led to the increase of phase inversion temperature of the system. The experimental results also showed that when the hydrophilicity of emulsifier system was enhanced, the second phase inversion would be more obvious. The phase inversion temperature of ester oils is generally higher than that of alkane oils.