【摘要】 测定了天然皂荚素 (GS)、CTAB和 (C1 2 S ,C1 6 S)三元复配体系在 2 5℃ ,纯水及 0 .1mol·L- 1 NaBr溶液中的表面张力 .并用Rubingh和Rosen公式计算了分子间相互作用参数 βm、βσ.结果表明电解质 ,表面活性剂疏水链长对三元表面活性剂体系表面活性的影响 ,遵循表面活性剂体系的一般规律 ,三元表面活性剂体系分子间存在相互吸引作用且强度大于CTAB -CnS体系 .更多还原

【Abstract】 Surface tensions for ternary surfactants systems of Natural surfactant—gymnocladas saponin(GS)、 Cationic CTAB and anionic Dodecy1/Hexadecyl snlfonate in pure water and 0.1 mol·L -1NaBr aq solution have been measured at 25 ℃.Molecular interaction parameters in mixed micelle and mixed monolayer have been calculated using equations derived by rubingh and rosen based on regular solution Theory.It’s shown that the hydrophobic chain length and electrolyte have usual affests on surface properties of the ternary systems.The net attracting interactions between molecules for the ternary mixture are stronger than that for CTAB—C nS binary mixture更多还原