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通过油酸钠Triton X100 复配体系与庚烷间动态界面张力的研究发现,不同表面活性剂组分体系的动态界面张力曲线的时间效应不同,且达到的平衡界面张力值也不同。较高油酸钠含量的复配体系容易产生低界面张力,油相含有机酸对降低界面张力较为有利。从实验结果还得出:界面相中各种活性物质合理分布对界面张力的降低起重要作用,活性物质在界面的反应及其在界面上的吸附/ 脱附速率控制动态界面张力行为。
The dynamic interfacial tension between the system of sodium oleate and Triton X100 and heptane found that the time-dependent dynamic interfacial tension curves of different surfactant systems were different and the equilibrium interfacial tension values were also different. The higher sodium oleate content of the complex system prone to low interfacial tension, oil-containing organic acids to reduce the interfacial tension is more favorable. The experimental results also show that the rational distribution of various active substances in the interface phase plays an important role in the reduction of the interfacial tension. The reaction of the active substances at the interface and the adsorption / desorption rate at the interface control the dynamic interfacial tension behavior.