阴离子瓜尔胶的制备及其稀溶液性质  

Preparation of anionic guar gum and properties of its dilute aqueous solution

作　　者：赵素粉[1] 朱海林[1] 胡志勇[1] 谭春雷[1] 

机构地区：[1]中北大学化工与环境学院,山西太原030051

出　　处：《天津化工》2010年第4期22-23,27,共3页Tianjin Chemical Industry

摘　　要：在碱催化剂作用下,用改性剂2-氨基乙磺酸钠-4,6-二氯-1,3,5-均三嗪与瓜尔胶反应制得新型阴离子瓜尔胶(AGG),采用IR对AGG进行了表征。借助乌氏黏度计研究了AGG的稀溶液性质,考察了温度和外加盐浓度对AGG的影响。结果发现,随着温度的升高,其特性粘度先增大后减小;而其特性粘度则随着NaCl溶液浓度的增加先减小后增大。Under alkalic condition,the anionic guar gum（AGG） was prepared through the reaction of the modifying agent,2-（2-sulfonated） ethylamino-4,6-dichloro-1,3,5-triazine,and guar gum.The AGG was characterized by IR spectrum.Viscosity behavior of the aqueous solution of AGG was studied by means of Ubbelohde viscometer.Influences of temperatures and differents concentration of electrolyte added into the AGG solution on the properties of AGG were examined.The results showed that the reduced viscosity first decreases then increases as the concentration of NaCl increased,the trend of the reduced viscosity with the temperature is reveise.

关 键 词：阴离子瓜尔胶 黏度 溶液性质 

分 类 号：TQ281[化学工程—有机化工]