Naslov
Preparation and study of the thermal, barrier and antibacterial properties of Polylactic acid-Fluorphlogopite-Silver nanoparticles nanocomposite films

Autori
Nabgui, Abderrahmane ; Follain, Nadège ; Vidović, Elvira ; El Haskouri, Jamal ; Marais, Stéphane ; El Meziane, Abdellatif ; Lahcini, Mohamed ; Thébault, Pascal

Izvornik
Progress in organic coatings (0300-9440) 171 (2022); 107041-107041

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
antimicrobial food packaging ; polylactic acid ; fluorphlogopite silver nanoparticles ; antibacterial activity ; barrier properties ; thermal properties

Sažetak
Nowadays, there is an increasing need to develop new green biodegradable materials for active antimicrobial food packaging applications. In this work, polylactic acid-2 % Fluorphlogopite-1.5%silver nanoparticles (AgNPs) composites were prepared using melt extrusion. Films were characterized using Scanning Electron Microscopy, Transmission Electron Microscopy, X-Ray Diffraction, Differential Scanning Calorimetry, and Water Contact Angle measurements. Results showed a good dispersion of both fluorphlogopite and AgNPs in PLA which increased the surface roughness and hydrophobicity of PLA. Subsequently, the thermal, mechanical, and barrier properties of PLA nanocomposites were assessed. PLA-2%Fluorphlogopite-1.5%AgNPs showed a higher thermal stability than neat PLA while the mechanical properties remained unchanged. Furthermore, the excellent barrier properties of PLA were also unaffected by the introduction of fluorphlogopite and AgNPs. Finally, the antibacterial activity of the nanocomposites was assessed against three bacteria, S. aureus, E. faecalis, and E. coli and PLA-2%Fluorphlogopite-1.5%AgNPs inhibited almost completely the bacterial adhesion on the surface of the films.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

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