3种不同物质的动态界面剪切粘度研究

Study on dynamic interfacial shear viscosity of three substances

用日本协和界面剪切粘度计测定了壬基酚聚氧乙烯(4)醚、油酸钠及固体颗粒的动态界面剪切粘度。结果表明,非离子表面活性剂壬基酚聚氧乙烯(4)醚、阴离子表面活性剂油酸钠在适当浓度下,其界面剪切粘度随时间延长而逐渐降低,最后趋向稳定;固体颗粒蒙脱土界面剪切粘度随时间延长而逐渐上升,然后趋向平衡。这说明不同物质形成的油水界面剪切粘度的动态变化明显不同。

The dynamic interracial shear viscosity of NP-4, sodium oleate and montmorillonite was measured using SVR·S interracial rheometer. With the time delay, the interracial shear viscosity of NP-4 and ,sodium oleate under certain concentration decreases while the interracial shear viscosity of montmorillonite increases before it reaches a fixed value. The results show that the dynamic phenomena of the film of different substances are distinctively different.