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Open AccessFeature PaperArticle

Effect of Cellulosic Waste Derived Filler on the Biodegradation and Thermal Properties of HDPE and PLA Composites

1
Department of Chemical and Material Environmental Engineering, Sapienza University of Rome, 00184 Rome, taly
2
Ingénierie des Matériaux polymers, Université de Lyon, INSA Lyon, 69621 Villeurbanne, France
3
DEEP Laboratory, Université de Lyon, INSA Lyon, 69621 Villeurbanne, France
*
Author to whom correspondence should be addressed.
Processes 2019, 7(10), 647; https://doi.org/10.3390/pr7100647
Received: 1 August 2019 / Revised: 11 September 2019 / Accepted: 12 September 2019 / Published: 21 September 2019
(This article belongs to the Special Issue Synthesis and Applications of Eco-Friendly Polymers)
Composites with high density polyethylene (HDPE) and poly(lactic) acid (PLA) matrix have been tested to analyze the effect of natural fillers (wood flour, recycled wastepaper and a mix of both fillers) and temperature on polymer degradation. Composting tests have been performed in both mesophilic (35 °C) and thermophilic (58 °C) conditions. Degradation development has been evaluated through mass variation, thermogravimetric analysis and differential scanning calorimetry. HDPE, as expected, did not display any relevant variation, confirming its stability under our composting conditions. PLA is sensibly influenced by temperature and humidity, with higher reduction of Mw when composting is performed at 58 °C. Natural fillers seem to influence degradation process of composites, already at 35 °C. In fact, degradation of fillers at 35 °C allows a mass reduction during composting of composites, while neat PLA do not display any variation. View Full-Text
Keywords: biodegradation; bio-derived polymer; composites biodegradation; bio-derived polymer; composites
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MDPI and ACS Style

Quitadamo, A.; Massardier, V.; Iovine, V.; Belhadj, A.; Bayard, R.; Valente, M. Effect of Cellulosic Waste Derived Filler on the Biodegradation and Thermal Properties of HDPE and PLA Composites. Processes 2019, 7, 647.

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