两性离子瓜尔胶及其水溶液的流变特征  

Synthsis of Zwitterionic Guar Gum and Its Rheological Characteristics of Aqueous Solution

作　　者：朱海林[1] 胡志勇[1] 熊燕[1] 

机构地区：[1]中北大学化工与环境学院,山西太原030051

出　　处：《江南大学学报（自然科学版）》2008年第4期496-499,共4页Joural of Jiangnan University (Natural Science Edition)　

摘　　要：采用一步法合成新型两性离子瓜尔胶(ZGG),研究了ZGG水溶液的流变特征,并考察浓度、外加盐等对ZGG水溶液流变性能的影响.结果表明:ZGG水溶液的比浓黏度随浓度的增加而增加;在一定浓度的盐溶液中,ZGG表现出明显的反聚电解质溶液的黏性行为;ZGG水溶液呈假塑性流体特征,具有剪切变稀特性,并具有较强的触变性质.Zwitterionic guar gum （ZGG） was prepared by one-step method. The rheological characteristics of ZGG aqueous solution were studied on the effect of its concentration and added salts . It was found that the reduced viscosity increased with increasing concentration, and the ZGG solution had characteristics of typical anti-polyelectrolyte. The ZGG solution behaved as pseudoplastic fluids-the decrease in reduced viscosity with increasing shearing-velocity, and had considerably thixotropic response.

关 键 词：两性离子瓜尔胶 合成 反聚电解质溶液 流变性能 假塑性流体 触变性 

分 类 号：TQ423.3[化学工程]