Micromechanical Characterization of Complex Polypropylene Morphologies by HarmoniX AFM

Figure 2

Topography (height map), elastic modulus map, and the corresponding elastic modulus distributions in the spherulitic core (750 μm from the sample surface) acquired on a nonetched sample and on a sample etched for different times (3 h and 12 h). For each reported elastic modulus map, the elastic modulus average value is reported.