Morphology, Thermo-Mechanical Properties and Biodegradibility of PCL/PLA Blends Reactively Compatibilized by Different Organic Peroxides

Marta Przybysz-Romatowska; Mateusz Barczewski; Szymon Mania; Agnieszka Tercjak; Józef Tadeusz Haponiuk; Krzysztof Formela

doi:10.3390/ma14154205

Morphology, Thermo-Mechanical Properties and Biodegradibility of PCL/PLA Blends Reactively Compatibilized by Different Organic Peroxides

Abstract

Reactive blending is a promising approach for the sustainable development of bio-based polymer blends and composites, which currently is gaining more and more attention. In this paper, biodegradable blends based on poly(ε-caprolactone) (PCL) and poly(lactic acid) (PLA) were prepared via reactive blending performed in an internal mixer. The PCL and PLA content varied in a ratio of 70/30 and 55/45. Reactive modification of PCL/PLA via liquid organic peroxides (OP) including 0.5 wt.% of tert-butyl cumyl peroxide (BU), 2,5-dimethyl-2,5-di-(tert-butylperoxy)-hexane (HX), and tert-butyl peroxybenzoate (PB) is reported. The materials were characterized by rotational rheometer, atomic force microscopy (AFM), thermogravimetry (TGA), differential scanning calorimetry (DSC), tensile tests and biodegradability tests. It was found that the application of peroxides improves the miscibility between PCL and PLA resulted in enhanced mechanical properties and more uniform morphology. Moreover, it was observed that the biodegradation rate of PCL/PLA blends reactively compatibilized was lower comparing to unmodified samples and strongly dependent on the blend ratio and peroxide structure. The presented results confirmed that reactive blending supported by organic peroxide is a promising approach for tailoring novel biodegradable polymeric systems with controllable biodegradation rates.

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Authors (6)

Marta Przybysz-Romatowska
Mateusz Barczewski
- Politechnika Poznańska, Wydział Inżynierii Mechanicznej, Instytut Technologii Materiałów
Szymon Mania dr inż.
Agnieszka Tercjak
- University of the Basque Country (UPV/EHU), Group ‘Materials + Technologies’ (GMT), Department of Chemical and Environmental Engineering, Faculty of Engineering
Józef Tadeusz Haponiuk (formerly: Józef Haponiuk) prof. dr hab. inż.
Krzysztof Formela dr inż.

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Articles

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artykuły w czasopismach

Published in:

Materials no. 14,
ISSN: 1996-1944

Language:

English

Publication year:

2021

Bibliographic description:

Przybysz-Romatowska M., Barczewski M., Mania S., Tercjak A., Haponiuk J., Formela K.: Morphology, Thermo-Mechanical Properties and Biodegradibility of PCL/PLA Blends Reactively Compatibilized by Different Organic Peroxides// Materials -Vol. 14,iss. 15 (2021), s.4205-

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