胶体泡沫界面电性质与界面吸附性质的研究

Study on Interfacial Electrical Properties and Interfacial Adsorption Properties of CGA

建立了胶体泡沫（ＣＧＡ）上浮电位Ｕ＿ｆ的测定装置，以十二烷基硫酸钠（ＳＤＳ或ＮａＬＳ）为表面活性剂，研究了ＣＧＡ的界面电性质和界面吸附性质，根据Ｇｏｕｙ－Ｃｈａｐｍａｎ理论，计算了其表面吸附量，研究了溶液的ｐＨ、ＮａＣｌ浓度及ＳＤＳ浓度对其Ｕ＿ｆ、ζ电位、的影响。

The apparatus for measuring the rising potential of CGA to rise through an aqueous solution was set up.Interfacial electrical properties and adsorption properties of CGA produeced by sodium dodecyl sulphate(SDS or NaLS)solution were investigated under various conditions(i. g.flow rate of CGA(Q_(CGA)),pH,the concentration of NaCl and SDS in aqueous solution).The rising potentials(U_f)of CGA in aqueous solution of SDS were measured.The electrokinetic adsorption densities of SDS in rising CGA surfaces were calculated from Zeta-potentials in terms of the Gouy-Chapman theory.