(300 s1
) and finally an up-down shear rate step (0.1–300 s1
).
The later was done to verify shear time independency. Linear
(Newtonian fluid) or shear thinning Carreau (Eq. (1)) model were
applied to experimental data. Values of zero shear viscosity (g0),
infinite viscosity (g1), characteristic time (tc) and flow behavior
index (n) were calculated using Rheoplus software V3.61 (Anton
Paar, Austria).
g ¼ g1 þ ðg0 g1Þ 1 þ ðtcc_Þ
2 h iðn1Þ=2
ð1Þ
In this model, g1 parameter was neglected (