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体系由水或人工海水/煤油/表面活性剂(AS,CTAB,BRIJ35)/助表面活性剂(正丁醇)构成。研究40℃时各表面活性剂、油及醇含量和海水盐度对微乳形成的影响。结果表明:3种表面活性剂中CTAB最易于形成微乳,在含煤油量≤50%时皆可与纯水或海水形成O/W、W/O和双连续结构的3种形式微乳区;对于AS,这种微乳连续区仅在含煤油≤25%时出现;而对于BRIJ35,只在含煤油10%时才出现。随含油量增加,各表面活性剂体系其微乳区域面积分数皆明显减少。随海水盐度增加,各表面活性剂体系微乳区域面积分数减少。各体系中当醇与表面活性剂重量比小于0.7时不易形成微乳。
The system consists of water or artificial seawater / kerosene / surfactant (AS, CTAB, BRIJ35) / cosurfactant (n-butanol). The effects of surfactant, oil and alcohol content and seawater salinity on the formation of microemulsion were investigated at 40 ℃. The results showed that the three kinds of surfactant CTAB most likely to form microemulsion, when the kerosene content is less than or equal to 50%, can form O / W, W / O and bicontinuous three microemulsion regions with pure water or seawater ; For AS, this microemulsion continuous zone only occurs when kerosene is less than or equal to 25%; for BRIJ35, only kerosene is present at 10%. With the increase of oil content, the microemulsion area fraction of each surfactant system decreased obviously. With the increase of seawater salinity, the microemulsion area fraction of each surfactant system decreased. When the weight ratio of alcohol to surfactant in each system is less than 0.7, it is not easy to form microemulsion.