Fig. 2

Representative PFQNM nanomechanical mapping (5 µm × 5 µm) of PS/LDPE blend sample at 2 kHz. Panels a–d are height sensor image, DMT modulus channel, indentation channel, and energy dissipation channel. For images a–d, the scale bars represent 1 µm. On the completion of the survey scan, the AFM is guided to physically zoom in on the LDPE region and take a high-resolution small size (1.3 µm × 1.3 µm) scan. The corresponding image channels are displayed in panels e–h. The scale bar represents 260 nm for panels e–h