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研究了水溶液中十二烷基苯磺酸钠（ＳＤＢＳ）、溴代十四烷基吡啶（ＴＰＢ）和聚乙烯吡咯烷酮（ＰＶＰ）在ＺｒＯ２上的吸附及对ＺｒＯ２水悬浮体稳定性的影响．结果表明：ｐＨ＝２．４时ＳＤＢＳ在ＺｒＯ２上的吸附等温线为ＬＳ型，ｐＨ＝７．０时ＴＰＢ的吸附等温线为Ｓ型，吸附等温线与ＺｒＯ２粒子ζ电势变化曲线有大体一致的关系．在最大吸附量时ＺｒＯ２粒子ζ电势较大，且吸附的表面活性剂离子形成大部分亲水基朝向水相的表面胶团．这两种因素都使ＺｒＯ２悬浮体稳定性提高．ＰＶＰ在ＺｒＯ２上的吸附量较小，相对而言在带正电荷的ＺｒＯ２上比在带负电荷的ＺｒＯ２上吸附量和吸附层厚度大．在ＰＶＰ浓度很低时因吸附分子的“搭桥”作用使ＺｒＯ２悬浮体稳定性下降，而浓度高时聚合物的空间稳定作用可使悬浮体稳定性提高
The adsorption of sodium dodecyl benzene sulfonate (SDBS), brominated tetradecylpyridine (TPB) and polyvinylpyrrolidone (PVP) on ZrO2 in aqueous solution and the influence on the stability of ZrO2 aqueous suspension were studied. The results showed that the adsorption isotherm of SDBS on ZrO2 was LS at pH = 2.4. The adsorption isotherm of TPB was S at pH 7.0, and the adsorption isotherm was in good agreement with that of ZrO2. relationship. At maximum adsorption, the zeta potential of ZrO2 particles is larger and the adsorbed surfactant ions form the majority of surface micelles with hydrophilic groups toward the aqueous phase. Both of these factors increase the stability of the ZrO2 suspension. The adsorption capacity of PVP on ZrO2 is relatively small, and the adsorption capacity of PVP and the thickness of adsorption layer are relatively larger on positively charged ZrO2 than on negatively charged ZrO2. When the concentration of PVP is low, the stability of ZrO2 suspension decreases due to the “bypass” effect of the adsorbed molecules, and the stability of the suspension can be enhanced by the steric stabilization of the polymer at high concentration