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Open AccessArticle

Optimization of Thermoplastic Blend Matrix HDPE/PLA with Different Types and Levels of Coupling Agents

1
Department of Chemical and Material Engineering, Università di Roma La Sapienza, via Eudossiana 18, 00184 Rome, Italy
2
Ingénierie des Matériaux Polymères, INSA de Lyon, Université de Lyon 69003, 69621 Villeurbanne, France
3
School of Architecture and Design, Università di Camerino, Viale della Rimembranza, 63100 Ascoli Piceno, Italy
*
Author to whom correspondence should be addressed.
Materials 2018, 11(12), 2527; https://doi.org/10.3390/ma11122527
Received: 13 November 2018 / Revised: 4 December 2018 / Accepted: 6 December 2018 / Published: 12 December 2018
(This article belongs to the Special Issue Polymer Blends and Compatibilization 2018)
High-density polyethylene (HDPE) and poly(lactic) acid (PLA) blends with different ratios of both polymers, namely, 30:70, 50:50, and 70:30, were produced. Polyethylene-grafted maleic anhydride and a random copolymer of ethylene and glycidyl methacrylate were also considered as compatibilizers to modify HDPE/PLA optimal blends and were added in the amounts of 1, 3, and 5 wt.%. Different properties of the blends were evaluated by performing tensile tests and scanning electron microscopy to analyze blend and interfaces morphology. Moreover, thermomechanical analysis through differential scanning calorimetry, thermo-gravimetric analysis, and infrared spectroscopy were also performed. The blend containing equal amounts of HDPE and PLA seemed to present a good balance between amount of bio-derived charge and acceptable mechanical properties. This suggests that these blends have a good potential for the production of composites with lingo-cellulosic fillers. View Full-Text
Keywords: blend; bio-derived polymers; compatibilization; thermoplastic matrix for composite blend; bio-derived polymers; compatibilization; thermoplastic matrix for composite
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Quitadamo, A.; Massardier, V.; Santulli, C.; Valente, M. Optimization of Thermoplastic Blend Matrix HDPE/PLA with Different Types and Levels of Coupling Agents. Materials 2018, 11, 2527.

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