【摘要】 目的对十二烷基硫酸钠(SDS)/正庚烷/正丁醇/水体系微乳液的相行为和电导行为进行了研究。方法用电化学方法测定了微乳体系的电导率。结果体系在水滴定过程中均出现渗滤电导现象,温度升高,体系的电导率增大,表观活化能也增大,SDS微乳体系在pH2.5～11范围内具有良好的抗酸、碱性能。结论通过电导率的测定可研究微乳体系的结构及结构转变。更多还原

【Abstract】 Objective The phase behavior and conductivity of the sodium dodecyl sulfate (SDS)/ n-butanol/ n-heptane/ water microemulsion systems were studied.Methods The conductivities of themicroemulsion systems were measured by electrical chemistry method.Results The percolative conductionare all found in the microemulsion systems(km=2.33).The conductivities and the apparent activeenergies of the systems increase with the raising of the temperature.The SDS microemulsion systems havegood resistance to acid and alkali within the limits of pH2.5～11.Conclusion The structure andstructural transition for microemulsion systems can be dealt with by conductivity measurement.更多还原