论文部分内容阅读
研究了含氟烷基磷酸单酯类表面活性剂[分子式为H(CF2)6CH2OPO(ONa)2,记为DFH-PS]与无机盐和普通碳氢表面活性剂的复配性能,研究结果表明,DFH-PS水溶液最低表面张力为23.73 mN/m;当NaCl浓度为0.2 mol/L时,可使DFH-PS水溶液最低表面张力下降到21.62 mN/m;阴离子碳氢表面活性剂十二烷基硫酸钠(SDS)对该含氟表面活性剂影响显著,当n(DFH-PS)∶n(SDS)=5∶1时,可使水溶液表面张力在很低浓度时降至22.22 mN/m;与非离子表面活性剂辛基酚聚氧乙烯(10)醚(OP-10)混合,当n(DFH-PS)∶n(OP-10)=8∶1时,可使水溶液表面张力降至27.0 mN/m。
The complex properties of fluoroalkyl phosphate monoester surfactants [formula: H (CF2) 6CH2OPO (ONa) 2, DFH-PS] with inorganic salts and common hydrocarbon surfactants were studied. , The lowest surface tension of DFH-PS aqueous solution was 23.73 mN / m. When the NaCl concentration was 0.2 mol / L, the lowest surface tension of DFH-PS aqueous solution was decreased to 21.62 mN / m. The anionic hydrocarbon surfactant dodecyl When the concentration of sodium dodecyl sulfate (SDS) = 5: 1, the surface tension of aqueous solution decreased to 22.22 mN / m at very low concentration. When n (DFH-PS): n (OP-10) = 8:1, the surface tension of the aqueous solution can be reduced to 27.0 mN / m.