复配表面活性剂-模拟油-水体系的界面张力研究

doi:10.13218/j.cnki.csdc.2016.04.006

Abstract

Abstract: Interfacial tension of kerosene-water system with different types of surfactant (anionic,cationic and nonionic surfactant as well as polymeric Gemini surfactant and asymmetric amphoteric Gemini surfactants) was investigated and compared.Results showed that nonionic surfactant is the one which may display lowest interfacial tension of 0.690 mN/m.Ethoxylated octylphenol nonionic surfactant (OP type) was selected to be blended with different types of other surfactants to examine the effects of type of the blend surfactant and their mass ratio,as well as the overall mass concentration on the interfacial tension of the mimetic oil-water system.Results showed the blend surfactant composed of ethoxylated octylphenol and asymmetric amphoteric Gemini surfactant (C₁₅EC-S-C₁₆,laboratory prepared) with mass ratio of 7∶3 and overall mass concentration of 50 g/L can reduce the interfacial tension to a minimum value of 0.024 mN/m.

Key words: blend surfactant, mimetic oil, viscosity reduction, interfacial tension of oil and water

CLC Number:

TQ423

LIU Xuan-chi,ZHANG Ya-gang,YU Er-lei,CUI Ping-zheng,WUMANJIANG Eli. Study on interfacial tension of mimetic oil and water system with blend surfactants[J].China Surfactant Detergent & Cosmetics, 2016, 46(4): 208-211.

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Study on interfacial tension of mimetic oil and water system with blend surfactants

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