Preprint Article Version 1 This version is not peer-reviewed

Optimization of Thermoplastic Blend Matrix HDPE/PLA with Different Nature and Level of Coupling Agent

Version 1 : Received: 13 November 2018 / Approved: 15 November 2018 / Online: 15 November 2018 (08:49:26 CET)

A peer-reviewed article of this Preprint also exists.

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. 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.

Journal reference: Materials 2018, 11, 2527
DOI: 10.3390/ma11122527

Abstract

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 proposed as compatibilizers to modify HDPE-PLA optimal blends and were added in the amounts of 1, 3 and 5 wt.%. Blends properties have been evaluated through different aspects by performing tensile tests, scanning electron microscopy to analyze blend morphology and interfaces, and thermomechanical analysis through differential scanning calorimetry, thermo-gravimetric analyses and infrared spectroscopy. The second blend, the one with equal amounts of HDPE and PLA seems to represent a good balance between high amount of bio-derived charge and acceptable mechanical properties. This suggests a good potential of these blends, which would be a good starting point for the production of composites with lingo-cellulosic fillers.

Subject Areas

blend; bio-derived polymers; compatibilization; thermoplastic matrix for composite

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