文献类型：期刊文献

中文题名：低分子量阳离子瓜胶凝胶体系的流变性

英文题名：Rheological Properties of the Low Molecular Weight Cationic Guar Gum Cross-Linked Gel Systems

作者：程巍[1];方波[1];卢拥军[1];杨青[1];曹丹红[1];罗少洁[1]

机构：[1]华东理工大学化学工程研究所化工流变学研究室,上海200237

年份：2007

卷号：33

期号：5

起止页码：600

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;EI(收录号：20074710937339);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金资助项目(20276016)

语种：中文

中文关键词：低分子量阳离子瓜胶;粘弹性;流变特性;低分子量植物胶压裂液

外文关键词：low molecular weight cationic guar gum;viscoelasticity;rheological properties; low molecular weight plant gum fracturing fluid

摘要：研究了低分子量阳离子变性瓜胶与硼砂交联的凝胶体系。考察了低分子量阳离子瓜胶浓度、硼砂浓度及pH对凝胶形成的影响,得到了结构稳定的凝胶体系。考察了低分子量阳离子瓜胶凝胶体系的流变特性,结果表明该体系具有良好的粘弹性和剪切变稀性。非线性共转Jeffreys模型可确切表征凝胶体系的粘度曲线,实验值与模拟值吻合良好。
Cross-linked gel systems consisting of low molecular weight cationic modified guar gum （LMWCGG） and borax were studied. Effects of LMWCGG concentration, borate concentration and pH value on formation of the gel systems were investigated, and stable LMWCGG cross-linked gel systems were obtained. Furthermore, the rheological properties of the gel systems were studied. The results show that the gel systems possess fine viscoelasticity and shear thinning property. Non-linear co-rotational Jefferys model can be applied to describe the viscosity curves of gel systems correctly, and the calculated values are in good agreement with the experimental data.