物理化学学报Issue(6)：1260-1265,6.DOI:10.3866/PKU.WHXB201303262
胶体粒子表面有效电荷的实验测量
Experimental Measurements of the Surface Effective Charge of Colloidal Particles
摘要
Abstract
The effective surface charge of col oidal particles is an important parameter for calculating inter-particle interaction potentials. In this study, we investigated the effective charge of seven kinds of polystyrene particles having different diameters and surface charges. Two methods, conductivity-number density relationships and conductometric titration, were used to measure the effective charges. The results obtained from the two different methods show smal variations of 7% . The effective charges were also calculated from empirical formulas and found to be twice as large as the experimental values, indicating these formulas cannot be universal y applied to al col oidal dispersions.关键词
胶体晶体/有效电荷/相互作用/电导滴定Key words
Col oidal crystal/Effective charge/Interaction/Conductometric titration分类
化学化工引用本文复制引用
周宏伟,米利,刘丽霞,徐升华,孙祉伟..胶体粒子表面有效电荷的实验测量[J].物理化学学报,2013,(6):1260-1265,6.基金项目
国家自然科学基金(11172302,11032011)资助项目 （11172302,11032011）
