Читать книгу The Rheology Handbook - Thomas Mezger - Страница 77

1 Placed in a beaker, a wooden rod inclines very slowly under its own weight through the dispersion.

2 Pulling the rod very quickly, causes the sample to solidify immediately.

3 Therefore then, the rod, the plastisol mass, and even the beaker are lifted all together now.

Viscosity of a shear-thickening material is dependent on the degree of the shear load. The flow curve shows an increasing curve slope (see Figure 3.15), i. e., viscosity increases with increasing load (see Figure 3.16).

Figure 3.14: Testing shear-thickening behavior of a plastisol dispersion

Figure 3.15: Flow curve of a shear-thickening liquid

Figure 3.16: Viscosity curve of a shear-thickening liquid