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文章应用界面张力仪、Zeta电位仪和表面黏弹性仪测定了聚合物、表面活性剂及其二元复合体系的质量浓度对油水界面性质的影响,并应用透射电镜观察了采出液的液膜结构。结果表明,随着聚合物质量浓度的增加,油水界面的界面剪切黏度值和界面张力值增大,颗粒表面Zeta电位的绝对值增大;随着表面活性剂质量浓度的增加,油水界面的界面剪切黏度变化幅度很小,但界面张力显著减小,颗粒表面Zeta电位绝对值增大;聚合物与表面活性剂复合能够形成稳定的聚合体,具有较大的界面剪切黏度值,较小的界面张力和较高的Zeta电位值;体系中聚合物、表面活性剂及水中悬浮物形成了类似“晶体”结构。
In this paper, the influence of the concentration of polymer, surfactant and its binary system on the interface properties of oil-water was investigated by the interfacial tension tensor, Zeta potentiometer and surface viscoelasticity instrument. The transmission electron microscopy structure. The results show that with the increase of polymer concentration, the interfacial shear viscosity and interfacial tension of oil-water interface increase, and the absolute value of Zeta potential of particle surface increases. With the increase of surfactant concentration, However, the interfacial tension decreased obviously and the absolute value of Zeta potential increased. The polymer and surfactant complex formed a stable polymer with a large interfacial shear viscosity value Small interfacial tension and high Zeta potential; polymers, surfactants and suspended solids in water form a similar “crystal” structure.