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黄原胶水溶液的流变性能研究
胡建国,赵玲,戴干策
作者单位E-mail
胡建国 华东理工大学 hujianguocj@163.com 
赵玲 华东理工大学 zhaoling@ecust.edu.cn 
戴干策 华东理工大学  
摘要:
采用ARES流变仪研究了从1g/L到40g/L不同浓度的黄原胶水溶液在303.15K-343.15K范围内的流变性能。结果表明:黄原胶水溶液为假塑性流体,幂律模型能很好地关联其流变方程;浓度为2g/L时,粘度和温度关系满足Arrhenius定律,随着黄原胶浓度增大,温度对粘度的影响不再符合Arrhenius定律;黄原胶水溶液的线性粘弹区范围几乎与浓度无关,同一浓度的黄原胶水溶液弹性模量 G' 远大于粘性模量G",表明溶液中存在类凝胶结构。
关键词:  黄原胶水溶液 流变性能 幂律模型 阿仑尼乌斯定律
DOI:
分类号:
基金项目:华东理工大学化学工程联合国家重点实验室自主开放课题
The Rheological properties of xanthan gum solutions
Hu jianguo,Zhao ling,Dai gance
Abstract:
Rheological properties of different xanthan gum solutions with concentration of 1g/L to 40g/L have been investigated under 303.15K to 343.15K. The results showed that xanthan gum solution behaved like pseudo-plasticity fluid and the relationship between its viscosity and shear rate could be described by the power-law model. The Arrhenius equation could only fit the viscosity and temperature data of 2g/L xanthan gum solution well. The concentration of xanthan gum solutions had little influence on linear viscoelastic range. Storage modulus G'was much higher than loss modulus G"for a given xanthan gum solution,which demonstrated gel-like structure in xanthan gum solutions.
Key words:  Xanthan gum solutions Rheological properties Power-law model Arrhenius equation

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