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提出了一种新的通过测量油滴粒径变化来表征油水乳状液动态特性的方法,采用粒度分析仪测量了不同体系模拟油水乳状液油滴粒径的变化。比较了十二烷基苯磺酸钠(SDBS)、壬基酚聚氧乙烯醚(NP-10)和乙氧基化烷基硫酸钠(AES)所形成模拟乳状液的动态特性,测定了聚合物和乙醇在复合体系中对乳化过程的影响,并初步探讨了作用机理。结果表明:该方法不仅可以反映出不同体系的油水乳化速度,而且可以比较乳状液中油滴的粒径大小及其随时间变化的规律,这对于研究实际驱油过程中乳状液的形成和稳定具有重要的意义。
A new method to characterize the dynamic characteristics of oil-water emulsion by measuring the droplet size changes was proposed. The particle size analyzer was used to measure the particle size changes of oil-water emulsion in different systems. The dynamic properties of simulated emulsions formed by sodium dodecylbenzenesulfonate (SDBS), nonylphenolpolyoxyethylene ether (NP-10) and ethoxylated sodium alkylsulfate (AES) were compared. The effects of polymerization Effect of ethanol and ethanol on the emulsification process in the composite system and the mechanism of action were preliminarily discussed. The results show that this method can not only reflect the emulsification speed of oil and water in different systems, but also compare the particle size of oil droplets in emulsion and its variation with time, which is of great significance for studying the formation and stabilization of emulsion Significance.