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将非理想混合吸附理论与Ｓｚｙｓｚｋｏｗｓｋｉ方程相结合，建立了非理想二元表面活性剂体系的表面张力方程，并提出了确定方程参数的单点实验法，从而可以根据单一表面活性剂体系的γ（表面张力）－ｌｏｇＣ（表面活性剂浓度）曲线和二元混合体系的一个表面张力数据预测不同体相组成和浓度时二元混合体系的表面张力。实验结果表明，所建方程对非理想二元混合表面活性剂体系具有广泛的适用性。
The non-ideal mixed adsorption theory and the Szyszkowski equation are combined to establish the surface tension equation of the non-ideal binary surfactant system. A single-point experiment method for determining the equation parameters is proposed, which can be based on the γ Surface tension) -logC (surfactant concentration) curve and a surface tension data of the binary system to predict the surface tension of the binary system at different bulk compositions and concentrations. The experimental results show that the proposed equation has a wide range of applicability to non-ideal binary mixed surfactant system.