十二烷基多苷与脂肪酸甲酯磺酸钠的复配研究

Study on blend systems of dodecyl polyglycosides and α-sulphonated fatty acid methyl ester

研究了十二烷基多苷(APG)与脂肪酸甲酯磺酸钠(MES)的复配体系在298 K下的表面化学性质。通过测定γ-lg c曲线,得到复配及单一体系的表面化学参数;并运用规则溶液理论对复配体系的性能进行了计算,研究了复配体系在胶束的形成、降低表面张力效率、降低表面张力效能3方面是否存在协同效应。结果表明,APG/MES复配体系表面化学性能优于单一体系,且复配体系在胶束的形成、降低表面张力的效率方面存在协同效应,但在降低表面张力的效能方面不存在协同效应。

Surface chemical properties of dodecyl polyglycosides （APG）/α - sulphonated fatty acid methyl ester （MES） blend systems at 298 K were studied. The surface chemical parameters of the blend systems as well as the individual surfactants were determined based upon the establishment of the T - lg c plots, and regular solution theory was applied for calculating the performance of the blend systems and investigating whether synergism effects were existed in aspect of micelle formation, surface tension reduction efficiency and surface tension reduction effectiveness. Results showed that, the surface chemical performances of the blend systems are better than that of any individual surfactants, and the blend systems of APG/MES display synergism in surface tension reduction effectiveness and mixed micelle formation, but do not display synergism in surface tension reduction efficiency.