Formulation of aqueous concentrated alumina suspensions. Influence of a disaccharide: trehalose

被引：0
|
作者：
Pagnoux, C [1 ]
Poeydemenge, F [1 ]
Baumard, JF [1 ]
机构：
[1] ENSCI, CNRS, UMR 6638, SPCTS, F-87065 Limoges, France
来源：
POLYMER INTERNATIONAL | 2003年 / 52卷 / 04期
关键词：
dispersion; coagulation; ceramic; tiron; trehalose;
D O I：
10.1002/pi.1068
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Trehalose, a disaccharide, is very well known to protect living cells efficiently from dehydration and has been tested in the formulation of aqueous alumina suspensions. It has been added into slurries stabilized with Tiron(R), (HO)(2)C6H2(SO3Na)(2), which permits a high state of dispersion by creating repulsive potential between particles. Trehalose added into such suspensions acts as a lubricant and enhances flowing properties of suspensions because of its strong interaction with water which breaks the hydrogen-bonded network of the solvent. Trehalose addition is beneficial for carrying out shaping methods of alumina components by coagulation as it increases solid concentration in the suspension, which facilitates pouring the suspension into a mould. Unfortunately this addition hinders coagulation of particles. (C) 2003 Society of Chemical Industry.
引用
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页码：528 / 535
页数：8
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