化学学报 ›› 1991, Vol. 49 ›› Issue (5): 462-467. 上一篇    下一篇

研究论文

钙离子和PH值对海藻酸钠液流变性能影响

陈宗淇;王宁华;韩恩山;陈娟;王光信   

  1. 青岛化工学院应用化学系
  • 发布日期:1991-05-15

The effects of calcium ion, PH value on the rheological properties of sodium alginate solution

CHEN ZONGQI;WANG NINGHUA;HAN ENSHAN;CHEN JUAN;WANG GUANGXIN   

  • Published:1991-05-15

海藻酸钠溶液是假塑性体系, 它的粘度与体系的浓度、温度、PH值和外加盐类的浓度等有密切关系, 并有一定触变性, 在某个钙离子浓度范围内, 体系出现了负触变性,对此用配离子的"屏蔽"现象进行了解释。

关键词: 钠化合物, 溶液, 甘露糖, PH值, 钙离子, 海藻产品, 流变性质, 粘度, 触变性, 古罗糖

Na alginate (I) solution showed non-Newtonian behavior at high viscosity. The rheol. of I solution was described as a function of shear gradient, temperature, pH value, and added salt concentration The addition of Ca2+ gave insoluble I; the viscosity of I increased and thioxotropy was observed in the presence of small amount of Ca2+. Neg. thixotropy of I was observed in certain Ca2+ concentration

Key words: SODIUM COMPOUNDS, SOLUTION, MANNOSE, PH VALUE, CALCIUM ION, SEAWEED PRODUCTS, RHEOLOGICAL PROPERTY, VISCOSITY, THIXOTROPY, GULOSE

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