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Citation: ZHANG Ya-Qiong, YU Yi-Chen, LU Yi-Ye, LIU Li, YAO Yan-Qing, GUO Sheng-Rong. Effect of Ca2+ Concentration on the Viscosity of Dilute Alginate Solution[J]. Chinese Journal of Applied Chemistry, ;2006, 23(11): 1259-1263. shu

Effect of Ca2+ Concentration on the Viscosity of Dilute Alginate Solution

  • 1.

    a School of Pharmacy, Shanghai Jiaotong University, Shanghai 200030;

  • 2.

    b College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou

  • Corresponding author: GUO Sheng-Rong, 
  • Received Date: 30 November 2005
    Available Online: 13 April 2006

    Fund Project: 上海市科委纳米专项资助(0352nm106) (0352nm106)

  • The viscosity of dilute alginate solution as a function of Ca2+ concentration was studied by viscosity measurement.The effect of polymer concentration,temperature and NaCl on the viscosity was investigated.The results show that for 0.125% and 0.15% alginate solutions,the viscosities firstly declined to certain minimum values with increasing the amount of Ca2+ added,and then rapidly rised until gel occurred;for a 0.075% alginate solution,the viscosity slightly changed as the amount of Ca2+ increased;In ηrel~1/T had a good linearity in the temperature range of 15~35℃;the viscosity decreased as NaCl was added.Thermal stability and the structure of calcium alginate complex were analyzed by means of DSC and FTIR.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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