shear thinning

(redirected from Pseudoplasticity)
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shear thin·ning

decreasing the viscosity of a polymer or macromolecule or gel by increasing the rate of shear; not ordinarily a function of time.
See also: thixotropy.
References in periodicals archive ?
It is interesting to note that the degree of pseudoplasticity may not be the most conclusive way of judging the sag performance of a clearcoat.
This is known as non-Newtonian behavior, pseudoplasticity or simply shear thinning.
The broad molecular weight distribution POE-WSR materials possess a high degree of pseudoplasticity, which is exhibited by their pituitous nature and reduction of viscosity upon exposure to shear.
8b), which denotes a pseudoplasticity index n = 0 according to the power law [sigma] [alpha] [[delta].
At three to four days aging, the 70 mole ethoxylate had a viscosity lower than that of the control, as well as a much lower degree of pseudoplasticity.
The pseudoplasticity is observed to be more or less similar for the blends 3 to 7, which contain mixed and resin curing systems.
1]), n the pseudoplasticity index and a the Carreau-Yasuda fitting parameter.
A standard way to compare levels of pseudoplasticity in fumed silica suspensions is to calculate the shear thinning index (STI) of the suspension by dividing the viscosity at a low shear rate by the viscosity at a high shear rate [7, 14, 23].
Figure 3 also indicates that the nanocomposites exhibit pseudoplasticity i.
The degree of flow behavior index in all the cases was less than unity and decreased linearly, thus showing an increase in pseudoplasticity.