摘要
采用硅胶柱层析法将两种石油磺酸盐分别分离成不同极性组分,在加醇和无醇条件下考察了石油磺酸盐不同极性组分及其复配体系的相行为和超低界面张力。将不同极性组分按一定比例复配,在加醇条件下可形成中相微乳液,且可获得较高的增溶参数和超低界面张力。在无醇条件下,石油磺酸盐单独组分均不能形成中相微乳液,合理复配两种或三种不同极性组分,不但可以形成中相微乳液且可获得较高的增溶参数和超低界面张力,相行为参数随复配比例的变化而变化。在上述实验的基础上提出石油磺酸盐是由不同极性组分组成的复杂表面活性剂,其不同极性组分间存在协同效应,极性在协同效应中起着重要作用。
Two
kinds of petroleum sulfonates were separated into different polar fractions by means of silica
gel column.Phase behavior of different polar fractions and their blends have been
studied.Blending different polar fractions at some appropriate proportions,however,do give
middle phase microemulsion systems with high solubilization parameters and ultra low
interfacial tension on alcohol condition.Fractions alone of petroleum surfonate could not form
middle phase microemulsion on alcohol free condition.Blending at some appropriate
proportions,blends of two or three fractions of petroleum sulfonate can not only form middle
phase microemulsion but also reveal.High solubilization ratio and ultra low interfacial tension
at optimum salinity under alcohol free condition.Parameters of phase behavior changed when
the proportion of fractions changed.Experiment results indicate that petroleum sulfonates are
themselves multicomponent surfactant that composed of different polar fractions.There are
synergism among different polar fractions,polarity is important in synergism.It is suggested
that the quality of petroleum sulfonale is supervised by the copmposition of different polar
fractions.
出处
《石油学报》
EI
CAS
CSCD
北大核心
1999年第2期73-77,共5页
Acta Petrolei Sinica
基金
国家攀登计划(B)项目资助