纳米氧化物表面的竞争吸附及稳定性研究  

Competitive Adsorption on the Surface of Nanoparticle oxides and Stabilization of Solution

作　　者：黄彩清[1] 肖汉宁[1] 刘华斌[2] 

机构地区：[1]长沙理工大学,长沙410076 [2]湖南大学,长沙410082

出　　处：《陶瓷科学与艺术》2006年第3期6-10,共5页Ceramics Science & Art

摘　　要：纳米氧化物在介质中的分散与稳定是纳米颗粒合成和应用中的关键问题。本文较系统地研究了各种聚合物在纳米SiO2和ZnO表面的吸附行为,探讨了聚合物浓度、分散体系pH值、电解质类型和浓度等对纳米氧化物表面吸附及稳定性的影响。通过改变聚合物和电解质的种类以及分散工艺条件,研究了纳米氧化物胶体物系的分散稳定规律。Dispersion and stabilization of nanoparticles in media is the critical problem for their synthesis and applications. Adsorption behavior of various polymers on the surface of SiO2 and ZnO nanoparticles was investigated. Effects of polymer concentration,pH value,ionic type and concentration on the stabilization of colloidal dispersion were discussed. The dispersion mechanism was suggested by changing the macromolecular type and dispersion conditions,

关 键 词：纳米氧化物 高分子聚合物 竞争吸附 分散规律 

分 类 号：TB383.1[一般工业技术—材料科学与工程]