微乳液相行物为结构的研究:氯化钠/水/十二烷基硫酸钠/正丁醇/正辛烷系统

本文报道NaCl/H2O/SDS/n-C4H90H/n-C8H18系统在WC4H9OH/WSDS=4时, 不同盐浓度下的相图, 结果表明, 卤水中NaCl浓度的增大导致这个系统相分裂区域扩在, 并在一定范围内产生三相共存和出现中相微乳液。中相微乳液的密度, 粘度, 电导率和折光率与最佳盐浓度以及微观物型转变有对应关系, 红外光谱测定表明, 油相中氢键的缔合强度比中相微乳液显著增强。

Phase behavior and micro-structure of microemulsions: Nacl/H2o/SDs/u/C4H9OH/n-C8H18 system

Phase diagrams were constructed for the NaCl/H2O/SDS/BuOH/n-C8H18 system at BuOH:SDS wt. ratio 4 at various salinities. The diagrams indicate that an increase in salinity leads to expansion of the phase-sepn. region and the formation of a 3-phase area including a middle microemulsion phase. The d., viscosity, elec. conductivity, and n of the middle microemulsion phase have a close relation to the optimal salinity and the transition of microemulsion microstructure. The IR measurements indicate that the H bond strength in the oil phase is notably stronger than that in the middle microemulsion phase.