%A Zhou Jian-Fang;Zhang Li-Ming;Peter S. Hui
%T Rheological Characteristics of Aqueous Solutions of an Amphoteric Guar Gum Derivative
%0 Journal Article
%D 2003
%J Acta Phys. -Chim. Sin.
%R 10.3866/PKU.WHXB20031120
%P 1081-1084
%V 19
%N 11
%U {http://www.whxb.pku.edu.cn/CN/abstract/article_26067.shtml}
%8 2003-11-15
%X The rheological characteristics of aqueous solutions of an amphoteric guar gum derivative, namely E-AMPHO-S, were studied in terms of the effects of its concentration, added salts and temperature by means of a rotating rheometer. It was found that E-AMPHO-S solutions investigated behaved as non-Newtonian shear-thinning fluids. With the increase of E-AMPHO-S concentration from 0.1％ to 2.0％(g•mL－1), the consistency coefficient increased while the viscosity behavior index decreased. The thixotropic response became stronger when E-AMPHO-S concentration was increased from 1.0％ to 3.0％(g•mL－1). The obvious viscosity behavior of “anti-polyelectrolye solution” was observed in aqueous salt solutions containing calcium chloride. The zero shear viscosity (η0) could be obtained by using Spencer-Dillon equation, and the temperature dependence of η0 could be expressed by a relation of the form of the Arrhenius equation.