Some viscous behaviors of styrene-acrylic emulsion thickened with konjac glucomannan

• Styrene-acrylic emulsion thickened with konjac glucomannan behaved shear thinning.
• The shear thinning was fitted to the Sisko model.
• Styrene-acrylic emulsion appeared a temperature-induced thickening.
• The temperature-induced thickening was slightly enhanced by konjac glucomannan.
• The konjac glucomannan did not affect the stability to time, pH value and NaCl, CaCl2.

Due to the importance of viscous behavior of fluidic material in the production, storage and application, some viscous behaviors of styrene-acrylic emulsion thickened with konjac glucomannan were investigated through steady and dynamic measurements with numerical model fits. Results demonstrated that the viscosities at various konjac glucomannan colloids consistently decreased with the shear rate/angular frequency rising from 0.1 to 100 s−1, behaving shear thinning phenomenon which could be fitted to the Sisko model. Temperature ramp data from 7 to 60 °C showed a temperature-induced thickening, which was slightly enhanced by konjac glucomannan. The tests for stability to time, pH value and NaCl, CaCl2 did not show considerable effect of the konjac glucomannan.