【摘要】 用表面张力法研究了混合磷酸酯的表面活性，得出各混合体系的临界胶束浓度和临界胶束浓度时的表面张力．结果表明，ＭＡＰＤＡＰ为７０３０时混合体系表面活性最优；ＡＰ、ＰＥ含量低于３％时有利于混合体系表面活性的提高；ｐＨ值在５．５～８．５范围内，对体系的表面活性影响较小更多还原

【Abstract】 The surface activity of mixed phosphates was studied by the measurement of surface tension. The critital micelle concentration (cmc) and surface tension of cme of the mixed systems were determined . The results indicate , (1) the surface activity shows a maximum when the ratio between MAP and DAP is 70 : 30 in the mixture ; (2) the surface activity is improved in the presence of AP and PE when the quantity less than 3% ; (3) the effect of pH in media on the surface activity is slight over the rang from 5.5 to 8.5.更多还原