脂肪醇乙氧基化物的环氧乙烷加合数对非离子/阴离子表面活性剂混合体系洗涤力的影响

研究了在非离子表面活性剂／阴离子表面活性剂／电解质的混合体系中，直链脂肪醇乙氧基化的ＥＯ数对体系洗涤力的影响效果，并用相转移化温度（ＰＴＴ）和油／水界面张力（ＩＦＴ）的观点对实验结果进行了解释，研究表明，随着体系中非离子与阴离子表面活性剂相对含量的增大，为达到最大洗涤力，非离子表面活性剂的ＥＯ数也需随之增大；随着体系中电解质含量的增大，最佳ＥＯ数也需随之增大，但前者的影响效果远高于后者。

Selecting the Optimal Linear Alcohol Ethoxylate for Enhanced Oily Soil Removal

The effect of ethylene oxide (EO) chain length in lauryl alcohol ethoxylate on the oily soil detergency of the nonionic/anionic/electrolyte mixed system was stuided, and the results were explained by the view of phase inversion temperature (PlT)and oil/water interfacial tension (lFT) The results are: the optimal EO moles (for maximal detergency)show a monotonically increasing trend when plotted as a function of the ratio of nonionic to anionic concentration for a fixed level of electrolyte; the optimal EO moles also increase with increasing level of electrolytes in the system;the effect of nonionic/anionic ratio is much stronger than the effect of electrolytes on the optimal EO moles.