viscosity behavior of alkaline/surfactant/polyacrylamide in britain

viscosity behavior of alkaline/surfactant/polyacrylamide in britain
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  • Do acidic and alkaline mediums affect thermal conductivity of surfactant solutions?
  • Both strong alkaline and acidic mediums go against the improvement of thermal conductivity of surfactant solutions. The zero-shear viscosity of polyvinylpyrrolidone (PVP) solution at 4.0 wt% is about twice than that of water, while the viscosity of an ionic surfactant does not increase noticeably at low concentration.
  • How does temperature affect the viscosity of surfactant solutions?
  • It is found that the viscosities of the surfactant solutions depend greatly on the temperature. The viscosities of all solutions decrease with the increasing of temperature. However, different types of surfactant solutions have their own characteristics. The viscosity variation with temperature should be due to the changes of micelle shapes.
  • How does cation surfactant affect the viscosity of SDS solution?
  • As the concentration reaches a certain value, the formation of larger surfactant micelles induces a sharp increase in the viscosity of the SDS solution. In contrast, the viscosity of the cation surfactant CTAB undergoes a slight reduction, and begins to increase at 0.1 wt%.
  • Do critical factors affect thermal conductivity and viscosity of surfactant solutions?
  • However, they also affect the physical characteristics of liquids, such as, thermal conductivity and viscosity. In this paper, the thermal conductivity and viscosity of several common used surfactant solutions are investigated experimentally, with regard to the effect of critical factors such as concentration, temperature and pH value.