Figure 1. Segregation observed when preparing the XS-MV4 cell
To observe the behavior of individual particles in the shear cell, an optical microscope with a 200x magnification lens (Keyence VH-Z20R) was positioned above the shear cell, as shown in Figure 2. The resulting images and videos detail the motion of particles visible through the gap between the base of the shear cell and the lid. Although this approach does not directly capture the motion of particles within the bulk system inside the shear cell, it does provide an understanding of particle behavior on the free surface of the blend.