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用Winsor型相图、δ—γ“鱼状”相图和改进的ε—β“鱼状”相图研究了混合碳链烷基聚葡糖苷 (APG :C8/10 G1.3 1和C12 /14 G1.43 )中相微乳液的相行为 .结果表明 ,随醇浓度的增加 ,微乳液类型发生WinsorI→III→II的转变 .从Winsor型相图直接观察到醇浓度增加时 ,微乳液三种类型的变化、各相体积以及中相微乳液形成和消失时醇的浓度 .从“鱼状”相图除得到中相微乳液形成和消失时的组成 ,以及单相微乳液形成时的组成外 ,还可得到平衡界面膜的组成、表面活性剂单体分子和醇在油相中的溶解度及表面活性剂形成单相微乳液的效能等 .在比较上述两种相图优缺点的基础上 ,我们首次提出了改进的“鱼状”相图 ,把两者的优点集中于该图中 .既能直观地观察出体系相态的变化 ,又能得到平衡界面膜的组成等其它性质 ,为理论和实际应用提供更多信息和方便 .
Mixed carbon chain alkyl polyglucosides (APG: C8 / 10 G1.3 1 and C12 / C12) were investigated by Winsor phase diagram, δ-γ “fishlike” phase diagram and a modified ε- 14 G1.43). The results showed that the WinsorI → III → II transition occurred in the microemulsion with the increase of the alcohol concentration. When the alcohol concentration was directly observed from the Winsor phase diagram, the microemulsion tris The type of change, the volume of each phase, and the concentration of alcohol in the formation and disappearance of the mesophase microemulsion. The composition of the microemulsion at the time of formation and disappearance from the “fishlike” phase diagram, as well as the composition of the single phase microemulsion In addition, the composition of the equilibrium interface membrane, the solubility of the surfactant monomer molecule and the alcohol in the oil phase and the effectiveness of the surfactant in forming the single-phase microemulsion can be obtained.Based on the comparison of the advantages and disadvantages of the above two phase diagrams , We first proposed an improved “fish-like” phase diagram, focusing on the advantages of the two in terms of both the phase behavior of the system and the composition of the equilibrium interface membrane. Theory and practical application to provide more information and convenience.