REPEPTIZATION AND THEORY OF ELECTROCRATIC COLLOIDS
REPEPTIZATION AND THEORY OF ELECTROCRATIC COLLOIDS
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DOI：
10.1016/0021-9797(72)90253-6
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发表时间：
1972-01-01
影响因子：
9.9
通讯作者：
OVERBEEK, JT
中科院分区：
文献类型：
--
作者：
FRENS, G;OVERBEEK, JT
只要选择适当的边界条件，电胶体的凝聚和重复可以用一个理论来处理。从DLVO理论的这个版本可以得出，对于每个溶胶，存在一个临界值ez∞，而不是双层参数Z∞，Z∞=zeϕδ/kT。溶胶是稳定的，絮凝体在Z∞>Z∞c下可以重复。对于Z∞<Z∞c，得到了传统的DLVO理论。给出了一些例子来说明这个概念。在附录中，带恒定电荷的双层相互作用与恒定电位下的相互作用有关。
The coagulation and the repeptization of electrocratic colloids can be treated in one theory provided that the appropriate boundary conditions are chosen. From this version of the DLVO theory it follows that for each sol there exists a critical valueZ∞cof the double layer parameterZ∞,Z∞=zeϕδ/kT. A sol is stable, and flocs can repeptize ifZ∞>Z∞c. ForZ∞<Z∞cthe traditional DLVO theory is obtained. Some examples are given to illustrate this concept. In the appendix the interaction of double layers with a constant charge is related to that at a constant potential.