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Citation: DUAN Hong-Dong, MENG Xia, QIN Da-Wei, LIU Wen-Xia. Rheological Studies on Shear-resistant Properties of Crosslinking Polymer Gel[J]. Chinese Journal of Applied Chemistry, ;2006, 23(7): 743-746. shu

Rheological Studies on Shear-resistant Properties of Crosslinking Polymer Gel

1.
a Department of Chemical Engineering, Shandong Institute of Light Industry, Ji'nan 250100;
2.
b School of Light Chemistry and Environment Engineering, Shandong Institute of Light Industry, Ji'nan 250100

Corresponding author: DUAN Hong-Dong,
Received Date: 26 August 2005
Available Online: 20 February 2006
Fund Project: 国家自然科学基金(20476053) (20476053)山东省自然科学基金(Y2003B01,Y2005B22)资助项目 (Y2003B01,Y2005B22)

The yield stress and shear-resistant properties of crosslinking polymer gel were studied by rheological measurement.It was found that when the concentration of polymer was 2 g/L,the system showed Newton's fluid;when the concentration of polymer was 3 or 4 g/L,the system showed plastic fluid,and the yield stress was 12 or 28 Pa,respectively.The retention value of viscosity of 4 g/L HPAM system was more than those of other systems.When the concentrations of the crosslinking agents were 0.25,0.5,1.0 and 1.5 mmol/L,respectively,the yield stresses were 6.0,20.0,12.0 and 2.0 Pa,respectively.When the pH value of the system was 4.86,the system showed Newton's fluid;when the pH values of the system were 5.60 and 6.46,the system showed Newton's fluid and the yield stresses were 12 and 7 Pa respectively.The strong gels exhibit higher viscosity retention,i.e.higher shear-resistant properties.
- crosslinking polymer,
- gel,
- yield stress,
- rheological measurements
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