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探讨了阴离子界面活性和盐析类电解质 (特别是直链烷基苯磺酸钠 (NaLAS)和柠檬酸钠(NaCitrate)对于市售非离子表面活性剂C12～ 15E〈7〉相行为的影响。对于相图中六角形和薄板液晶态的范围和微胞不互溶区的位置 ,NaLAS和NaCritate展现出定性上不同的影响。加入NaLAS提高了L1′ +L1″生成的混浊温度和协助了H1相的形成 ,但它缩小了Lα 相的范围。加入NaCritate降低了L1′ +L1″生成的混浊温度和缩小了H1相的范围 ,但它协助了Lα 相的形成。就效用上来说 ,NaLAS和NaCritate的存在可以被视为改变C12～ 15E〈7〉的亲水性质 :NaLAS增加了表面活性剂的亲水性和NaCritate降低了该项性质。在C12～ 15E〈7〉/NaLAS -H2 O系统中 ,NaLAS的效用可以通过加入NaCritate而中和 ;相行为回归到原来的C12～ 15E〈7〉-H2 O。这些相行为的改变是由于阴离子表面活性剂的静电性质和盐析类电解质的疏水效应引起的
The effects of anionic interfacial activity and salting-out electrolytes, especially NaLAS and NaCitrate, on the behavior of commercially available nonionic surfactants C12-15E <7> were discussed. NaLAS and NaCritate exhibit qualitatively different effects on the phase range of the hexagonal and thin plate liquid crystals in the phase diagram and the position of the micelles immiscible region.Adding NaLAS increases the cloudiness temperature generated by L1 ’+ L1’ and assists H1 phase , But it narrowed the range of the Lα phase.Adding NaCritate reduced the cloud-forming temperature of L1 ’+ L1 "and narrowed the range of the H1 phase, but it assisted in the formation of the Lα phase.In terms of utility, NaLAS and NaCritate Can be considered as changing the hydrophilic nature of C12-15E <7>: NaLAS increases the hydrophilicity of the surfactant and NaCritate reduces this property.In the C12-15E <7> / NaLAS-H2O system , The utility of NaLAS can be neutralized by the addition of NaCritate and the phase behavior returns to the original C12-15E <7> -H20. These phase behavior changes due to the electrostatic nature of the anionic surfactant and the hydrophobic effect of the salting-out electrolyte lead Up