Influence of accelerated weathering on mechanical and thermomechanical properties of poly(lactic acid) composites with natural waste filler

Mateusz Barczewski; Jacek Andrzejewski; Danuta Matykiewicz; Agnieszka Krygier; Arkadiusz Kloziński

doi:10.14314/polimery.2019.2.5

Published : 2021-01-12

Vol. 64 No. 2 (2019)

Influence of accelerated weathering on mechanical and thermomechanical properties of poly(lactic acid) composites with natural waste filler

Mateusz Barczewski Jacek Andrzejewski Danuta Matykiewicz Agnieszka Krygier Arkadiusz Kloziński

DOI: https://doi.org/10.14314/polimery.2019.2.5

Abstract

In this study we investigated the impact of accelerated weathering on selected mechanical and thermomechanical properties of poly(lactic acid) (PLA) composites filled with ground chestnut shell (CN). The mechanical properties were evaluated through static tensile test and Dynstat impact test, which were conducted for pure PLA and composites containing various amounts of the lignocellulosic organic filler (2.5–30 wt %). The results of the dynamic thermomechanical analysis (DMTA) are discussed in reference to structural changes obtained by differential scanning calorimetry (DSC), and they confirm changes in crystalline structure of PLA and its composites induced by cyclic temperature changes and UV light exposure. Scanning electron microscopy (SEM) images showed presence of microcracks and erosion of the PLA and composite surface after the aging process.

Keywords

poly(lactic acid) ; composite ; accelerated weathering ; waste management ; chestnut ; mechanical properties polilaktyd ; kompozyt ; przyspieszone starzenie ; gospodarka odpadami ; kasztan ; właściwości mechaniczne

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Barczewski, M., Andrzejewski, J., Matykiewicz, D., Krygier, A., & Kloziński, A. (2021). Influence of accelerated weathering on mechanical and thermomechanical properties of poly(lactic acid) composites with natural waste filler. Polimery, 64(2), 119–126. https://doi.org/10.14314/polimery.2019.2.5

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Mateusz Barczewski mateusz.barczewski@put.poznan.pl

Affiliation
Poznan University of Technology, Faculty of Mechanical Engineering and Management, Institute of Materials Technology, Piotrowo 3, 61-138 Poznań, Poland

Jacek Andrzejewski

Affiliation
Poznan University of Technology, Faculty of Mechanical Engineering and Management, Institute of Materials Technology, Piotrowo 3, 61-138 Poznań, Poland

Danuta Matykiewicz

Affiliation
Poznan University of Technology, Faculty of Mechanical Engineering and Management, Institute of Materials Technology, Piotrowo 3, 61-138 Poznań, Poland

Agnieszka Krygier

Affiliation
Poznan University of Technology, Faculty of Mechanical Engineering and Management, Institute of Materials Technology, Piotrowo 3, 61-138 Poznań, Poland

Arkadiusz Kloziński

Affiliation
Poznan University of Technology, Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Berdychowo 4, 60-965 Poznań, Poland