The Effect of Hollow Glass Microspheres on the Kinetics of Oxidation of Poly(ε-Caprolactone) Determined from Non-Isothermal Thermogravimetry and Chemiluminescence

0580694 - ÚACH 2024 RIV CH eng J - Článek v odborném periodiku
Vykydalová, Anna - Špitálsky, Z. - Kováčová, M. - Rychlý, J.
The Effect of Hollow Glass Microspheres on the Kinetics of Oxidation of Poly(ε-Caprolactone) Determined from Non-Isothermal Thermogravimetry and Chemiluminescence.
Processes. Roč. 11, č. 12 (2023), č. článku 3372. E-ISSN 2227-9717
Institucionální podpora: RVO:61388980
Klíčová slova: poly(epsilon-caprolactone) * glass beads * degradation * non-isothermal thermogravimetry * chemiluminescence * compensation effect
Obor OECD: Inorganic and nuclear chemistry
Impakt faktor: 3.5, rok: 2022
Způsob publikování: Open access

The effect of hollow glass beads on poly(epsilon-caprolactone) (PCL) oxidative degradation has been evaluated by the non-isothermal chemiluminescence (CL) method and thermogravimetry analysis (TGA). The main goal of the research and this publication was to reduce the production costs associated with the materials for 3D printing, which would also have a low mass, excellent biocompatibility and suitable thermal properties. Experiments have clearly shown the dual effect of a filler and its extent in terms of poly(epsilon-caprolactone). The chosen methods demonstrate the superposition of both the pro-degradation and stabilization effects of hollow glass beads on the polymer. The former was evident above the load of 10 wt.% of filler. The non-isothermal TGA records were analyzed as being composed of three temperature-dependent processes of the first-order kinetics. A massive compensation effect between the so-called activation energy and the logarithm of pre-exponential factors for heating rates of 2.5, 5 and 10 degrees C/min has been shown to be typical for similar non-isothermal thermogravimetry evaluation.
Trvalý link: https://hdl.handle.net/11104/0349455