摘要
本文报道NaCl/H_2O/SDS/n-C_4H_9OH/n-C_8H_(18)系统在W_(C_4H_9OH)/W_(SDS)=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大,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构型转变有对应关系。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 diagrams of NaCl/H_2O/SDS/n-C_4H_9OH/n-C_8H_(18) system at W_(n-C_4H_9OH)/W_(SDS)=4 with various salinities are presented. The diagrams indicate that the increase of the salinity leads to the expansion of phase-splitting region and %he formation of threephase area including a middle microemulsion phase. The density, viscosity, electric conductance, and refractive index of middle micrcemulsion phase are proved to have a close relationship with the optimal salinity and the transition of micro-structure of the microemulsions. The IR measurements indicate that the association strength of the hydrogen bonding in oil phase is notably stronger than that in the middle mioroemulsion phase.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1990年第11期1085-1089,共5页
Acta Chimica Sinica
基金
国家自然科学基金
国家教委基金
