The dynamic impact test was conducted in accordance with EN ISO 179-1 standard. The tests were carried out on injection-moulded bar-shaped specimens (see section 2.2). A Charpy Zwick Roell HT5.5P pendulum impact tester was used to conduct the tests. After preliminary tests, measurements were taken for PLA-based materials, using a pendulum with a nominal impact energy of 2 J (for PLA, PLA/20µHAp, and PLA/20nHAp samples) and 0.5 J (for PLA/40µHAp and PLA/40nHAp samples) without a notch. For PCL-based materials, notched specimens were measured using a pendulum with a nominal impact energy of 2 J. For each material, the impact strength was determined by measuring a minimum of five specimens.