Depletion flocculation in colloidal dispersions
Depletion flocculation in colloidal dispersions
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DOI：
10.1016/s0001-8686(96)90046-9
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发表时间：
1996-11-15
影响因子：
15.6
通讯作者：
Snowden, M
中科院分区：
文献类型：
--
作者：
Jenkins, P;Snowden, M
从理论和实验两个方面综述了溶液中自由的、非吸附性的聚合物分子对胶体分散体的不稳定作用。考虑到聚合物在溶液中的行为有关的理论提出的弗洛里，德Gennes，Scheutjens和Fleer。同样，描述聚合物在界面处或附近的行为的理论也一起检查与轮廓的耗尽相互作用的相关性。耗尽相互作用本身也进行了全面审查，考虑到目前在科学文献中的不同段密度分布理论。耗尽现象的实验报告进行了描述，包括硬球和软球系统，被认为是耗尽相互作用的直接和间接的证据。
The destabilisation of colloidal dispersions by free, non-adsorbing polymer molecules in solution is reviewed from both a theoretical and experimental perspective. Consideration is given to the behaviour of polymers in solution in relation to the theories proposed by Flory, de Gennes, and Scheutjens and Fleer. Similarly, the theories describing the behaviour of polymers at or near an interface are also examined together with an outline of their relevance to the depletion interaction. The depletion interaction itself is also comprehensively reviewed, taking into account the different segment density profile theories currently in the scientific literature. Experimental reports of the depletion phenomena are described, covering both hard sphere and soft sphere systems, with both the direct and indirect evidence of the depletion interaction being considered.