烷基二苯醚二磺酸钠与普通离子型表面活性剂的复配研究

测定了十六烷基二苯醚二磺酸钠(C16-MADS)与十二烷基苯磺酸钠(LAS)以及与十二烷基三甲基氯化铵(DTAC)复配体系的表面张力。研究了这两个复配体系的表面化学性质，并且将正规溶液理论应用于这两个复配体系中，来研究它们形成胶团能力、降低表面张力效率和降低表面张力能力3种增效作用。结果发现：C16-MADS／LAS复配体系具有形成胶团能力和降低表面张力效率的协同效应；C16-MADS／DTAC复配体系具有降低表面张力能力和降低表面张力效率的协同效应；还发现利用正规溶液理论对它们协同效应的判断与实验测定的情况完全相符。

Research on blending formulations of sodium mono - alkyl - diphenyl - ether disulfonate and conventional ionic surfactants

Surface tension of sodium mono-cetyl-diphenyl-ether disulfonate/sodium linear alkylbenzene sulfoniate((C_(16)-)MADS/LAS)and sodium mono-cetyl-diphenyl-ether disulfonate/dodecyl-trimethyl-ammonium chloride((C_(16)-)MADS/DTAC)were measured.At the same time,both systems were studied in terms of surface chemical properties.Further,the synergic effect to the capability of micelle formation,efficiency of surface tension depressing and capability of surface tension depressing were studied in accordance with the conventional solution theory.The results show that the blend system C_(16)-MADS/LAS has synergic effect to capability of micelle formation and efficiency of surface tension depressing,while the blend system C_(16)-MADS/DTAC has synergic effect to capability and efficiency of surface tension depressing.The conclusion about the synergic effects of the blend system base upon calculated results obtained in accordance with regular solution theory agrees well with experimental determinations.