摘要
纳米二氧化锆悬浮液分散稳定性是一个十分重要的问题。通过测定纳米二氧化锆悬浮液的ξ电位和吸光度，探讨了不同pH、不同表面活性剂种类和浓度对纳米氧化锆水相体系分散性的影响，并分析其作用机理。发现在阴离子和非离子复配表面活性剂中分散稳定性最好，体系ξ电位绝对值较高。氧化锆水相体系的等电点（IEP）在pH=6附近，在pH为2-3附近具有较大的正电位，在pH为9-11附近具有较大的负电位。
The dispersion and stability of ZrO2 nanoparticles suspension is a very important factor. The effect of different pH values ,different surfactant types and their concentration on the dispersion and stability of ZrO2 nanoparticles in water system are investigated and thin function mechanism are also analyzed. It is found that the dispersion and stability of suspension is the best and the absolute value of ξ - potential is higher when a complex of anionic and nonionic surfactants is added. The IEP of zirconia in water system is at pH 6, the positive potential is greater at pH 2 - 3, the negative potential is higher at pH 9 - 11.
出处
《无机盐工业》
CAS
北大核心
2006年第1期23-25,共3页
Inorganic Chemicals Industry
