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Nanotechnology-Based Strategy to Upgrade the Performances of Plastic Flexible Film Waste

1
Department of Industrial Engineering, University of Salerno, 84084 Fisciano, Italy
2
Conai–Italian National Consortium for Packaging Recycling, 20122 Milano, Italy
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(5), 830; https://doi.org/10.3390/polym11050830
Received: 20 March 2019 / Revised: 20 April 2019 / Accepted: 30 April 2019 / Published: 8 May 2019
(This article belongs to the Special Issue Eurofillers Polymer Blends)
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PDF [5768 KB, uploaded 8 May 2019]
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Abstract

The aim of this work was to improve the performances of Fil-s (film-small), a recycled material obtained from plastic flexible film waste that is made of polyethylene and a minor amount of polypropylene, with traces of polar contaminants (polyamides, maleic anhydride, etc.). The idea was to upgrade the material’s mechanical properties by applying a nanotechnology-based strategy that takes advantage of the composition of Fil-s. In particular, different amounts of copolyamide (CoPA) and its masterbatch with an organic-modified nanosilicate were melt compounded with Fil-s in a twin-screw extruder. The good affinity between Fil-s and CoPA, proved by means of spectroscopic and rheological analysis, allowed for the obtaining of a well-refined morphology for the neat and hybrid blends. This resulted in very interesting increments of the strain at break, which was particularly impressive (10 times higher) in the case of the blend with the lower amount of copolyamide masterbatch, but without sacrificing the stiffness and strength of Fil-s. View Full-Text
Keywords: flexible packaging; mechanical recycling; polymer blends; nanocomposites flexible packaging; mechanical recycling; polymer blends; nanocomposites
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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MDPI and ACS Style

Garofalo, E.; Di Maio, L.; Scarfato, P.; Di Gregorio, F.; Incarnato, L. Nanotechnology-Based Strategy to Upgrade the Performances of Plastic Flexible Film Waste. Polymers 2019, 11, 830.

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