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Active Bilayer PE/PCL Films for Food Packaging Modified with Zinc Oxide and Casein (CROSBI ID 223855)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Rešček, Ana ; Kratofil Krehula, Ljerka ; Katančić, Zvonimir ; Hrnjak-Murgić, Zlata Active Bilayer PE/PCL Films for Food Packaging Modified with Zinc Oxide and Casein // Croatica chemica acta, 88 (2015), 4; 461-473. doi: 10.5562/cca2768

Podaci o odgovornosti

Rešček, Ana ; Kratofil Krehula, Ljerka ; Katančić, Zvonimir ; Hrnjak-Murgić, Zlata

engleski

Active Bilayer PE/PCL Films for Food Packaging Modified with Zinc Oxide and Casein

This paper studies the properties of active polymer food packaging bilayer polyethylene/polycaprolactone (PE/PCL) films. Such packaging material consist of primary PE layer coated with thin film of PCL coating modified with active component (zinc oxide or zincoxide/casein complex) with intention to extend the shelf life of food and to maintain the quality and health safety. The influence of additives as active components on barrier, mechanical, thermal and antimicrobial properties of such materials was studied. The results show that, in comparison to the neat PE and PE/PCL films, some of PE/PCL bilayer films with additives exhibit improved barrier properties i.e. decreased water vapour permeability. Higher thermal stability of modified PE/PCL material is obtained due to a modified mechanism of thermal degradation. Good mechanical properties have the samples where the additive nanoparticles are homogeneously dispersed in the polymer matrix. Addition of higher ZnO content contributes to the enhanced antibacterial activity of a material.

active packaging; casein; polyethylene; polycaprolactone; zinc oxide

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Podaci o izdanju

88 (4)

2015.

461-473

objavljeno

0011-1643

10.5562/cca2768

Povezanost rada

Kemijsko inženjerstvo

Poveznice