《饮料工业》杂志
设为首页 | 加入收藏
 
最新文章
一价阳离子对海藻酸丙二醇酯溶液流变特性的 影响研究

余强兵,吴伟都*,冯玉红,朱慧,王雅琼,李言郡

(杭州娃哈哈集团有限公司,浙江杭州310018)

摘要:详细研究了不同盐(钠与钾)及不同离子强度对海藻酸丙二醇酯溶液体系流变特性的影响。通过实验发现,Na+及K+影响海藻酸丙二醇酯溶液的粘度、剪切稀化指数特性及粘弹性,还对动态粘弹性温度扫描时G'、G'' 与复数粘度出现增加时的温度、损耗正切出现降低时的温度以及G'=G'' 时的温度与模量值有影响。另外,可能由于钾离子的屏蔽作用与盐桥作用大于钠离子,使得钾离子对海藻酸丙二醇酯溶液流变特性的影响明显大于钠离子。

关键词:影响;一价阳离子;海藻酸丙二醇酯;流变特性

Studies on Effects of Univalent Cation on the Rheological Properties of Propylene Glycol AlginateAqueous Solutions

YU Qiang-bing,WU Wei-du*,FENG Yu-hong,ZHU Hui,WANG Ya-qiong,LI Yan-jun

(Hangzhou Wahaha Group Company Limited,Hangzhou 310018,China)

Abstract: The effects of different salts (including Na+ and K+)and different ion strengths on the rheological properties ofpropylene glycol alginate solutions were studied. According to the experiments,we found out that for the propyleneglycol alginate solutions ion,such as Na+ and K+ could impact on the viscosity,shearing thinning index andvisco-elasticity as well,and also have effects on the temperatures when G',G'' and complex viscosity increased,temperatures when loss tangent decreased,temperature and modulus values when G'=G'' in the dynamic visco-elasticitytemperature sweep. Moreover,possibly based on the reasons that the effect of shielding and salt-bridge of K+ was morethan Na+,the influence of K+ was greater than Na+ on the rheological properties of propylene glycol alginate solutions.

Key words: effects;univalent cation;propylene glycol alginate;rheological properties

 

 (2017年第20卷第4期)

 

版权所有:中国饮料工业协会 电话:010-84464668
邮箱:ylgy@chinabeverage.org 传真:010-84464236 邮编:100027 地址:北京市朝阳区东三环北路丙二号天元港中心B座1702室
OEM:201107272203261305