Adsorption of polyethyleneimine from aqueous solutions on bentonite clays

被引：67
|
作者：
Öztekin, N
Alemdar, AE
Güngör, N
Erim, FB [1 ]
机构：
[1] Istanbul Tech Univ, Dept Chem, TR-80626 Istanbul, Turkey
[2] Istanbul Tech Univ, Dept Phys, TR-80626 Istanbul, Turkey
来源：
MATERIALS LETTERS | 2002年 / 55卷 / 1-2期
关键词：
bentonite; polyethyleneimine; cationic polymer; rheology;
D O I：
10.1016/S0167-577X(01)00622-X
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The adsorption of the cationic polymer, polyethyleneimine (PEI), on bentonite clay particles was investigated. The adsorption rates for the bentonite suspensions are very fast. The high affinity type of interactions between PEI and bentonite samples is attributed to the electrostatic interaction between the clay particles in ambient basic suspensions and the positively charged high molecular weight polyelectrolyte, The adsorption capacity and the influence of the polyelectrolyte on the rheological behavior change with the exchangeable ions, i.e. Na and Ca ions of the bentonite samples. (C) 2002 Elsevier Science B.V All rights reserved.
引用
收藏
页码：73 / 76
页数：4
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