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利用Winsor相图及最佳增溶参数曲线对比了4种常见阴离子表面活性剂——十二烷基硫酸钠(SDS)、十二烷基磺酸钠(SLS)、十二烷基苯磺酸钠(SDBS)、乙氧基化烷基硫酸钠(AES)微乳液的增溶性能,增溶能力为SDBS>AES>SDS>SLS。选取增溶能力较小的SDS、SLS分别和阳离子表面活性剂十八烷基三甲基氯化铵(OTAC)复配微乳液,当达到最优复配比时,SDS/OTAC、SLS/OTAC体系的最佳增溶参数(SP*)较SDS、SLS体系分别增加了150%、170%,最佳盐度(S*)分别减少了91%和95%。研究还发现,当温度在20~50℃时,SDS/OTAC复配微乳体系的最佳增溶参数略微减小,最佳盐度稍微增加;温度超过50℃后,最佳增溶参数急剧减小,最佳盐度迅速增大。
Winsor phase diagram and the optimal solubilization parameters were used to compare four common anionic surfactants - sodium dodecyl sulfate (SDS), sodium dodecyl sulfate (SLS), dodecyl benzene sulfonic acid The solubilities and solubilizations of sodium (SDBS) and ethoxylated sodium alkylsulfate (AES) microemulsions were SDBS> AES> SDS> SLS. The SDS / OTAC, SLS / OTAC (superscript 2 +) were selected as the microemulsions with SDS and SLS and cationic surfactant octadecyltrimethylammonium chloride (OTAC), respectively. The optimum solubilization parameters (SP *) of the system were increased by 150% and 170%, respectively, compared with SDS and SLS systems, and the optimal salinity (S *) decreased by 91% and 95% respectively. The study also found that when the temperature is 20 ~ 50 ℃, the optimum solubilization parameters of SDS / OTAC microemulsion system slightly decrease, the optimum salinity increases slightly; when the temperature exceeds 50 ℃, the optimum solubilization parameters are sharp Reduce, the optimum salinity increases rapidly.