APPARENT YIELD STRESS IN XANTHAN GUM SOLUTIONS AT LOW CONCENTRATIONS

被引：27

作者：

GARCIAOCHOA, F

CASAS, JA

机构：

[1] Departamento de Ingeniería Química, Facultad C.C. Químicas, Universidad Complutense, Madrid

来源：

CHEMICAL ENGINEERING JOURNAL AND THE BIOCHEMICAL ENGINEERING JOURNAL | 1994年 / 53卷 / 03期

关键词：

D O I：

10.1016/0923-0467(93)06043-P

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The apparent yield stress in xanthan gum solutions at xanthan concentrations between 1 and 2 kg m-3 has been determined by an indirect method. Influences of measurement and dissolution temperatures are taken into account. Experimental measurements obtained with a Brookfield viscometer are fitted to a Casson model. Apparent yield stress changes with dissolution and measurement temperatures. These changes are due to a variety of reasons, such as conformational changes of the molecules in solution and weakening of different intermolecular bonds.

引用

页码：B41 / B46

页数：6

共 18 条

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