论文标题
从电泳迁移率确定临界凝血浓度的一种简单方法
A Simple Method to Determine Critical Coagulation Concentration from Electrophoretic Mobility
论文作者
论文摘要
临界凝血浓度（CCC）是颗粒分散体的关键参数，因为它提供了电解质浓度的阈值限制，在此之上，由于快速的粒子聚集，分散体不稳定。提出了一种计算方法，以使用仅电泳迁移率数据来预测CCC值，而无需测量颗粒的聚合速率。该模型依赖于DLVO理论。包括排斥双层力量和有吸引力的范德华力的贡献。相同颗粒的计算和先前报道的实验CCC数据之间的比较表明，该方法在单声道和多价电解质的存在下进行得很好，规定DLVO间颗粒力是主要的。该方法已针对各种组成，形状和大小的颗粒进行验证。
Critical coagulation concentration (CCC) is a key parameter of particle dispersions, since it provides the threshold limit of electrolyte concentrations, above which the dispersions are destabilized due to rapid particle aggregation. A computational method is proposed to predict CCC values using solely electrophoretic mobility data without the need to measure aggregation rates of the particles. The model relies on the DLVO theory; contributions from repulsive double-layer forces and attractive van der Waals forces are included. Comparison between the calculated and previously reported experimental CCC data for the same particles shows that the method performs well in the presence of mono and multivalent electrolytes provided DLVO interparticle forces are dominant. The method is validated for particles of various compositions, shapes, and sizes.
