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Naslov:Novel composite films from regenerated cellulose-glycerol-polyvinyl alcohol: Mechanical and barrier properties
Avtorji:ID Cazón, Patricia (Avtor)
ID Velazquez, Gonzalo (Avtor)
ID Vazquez, Manuel (Avtor)
Datoteke: Gradivo nima datotek, ki so prostodostopne za javnost. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:Cellulose is considered as an alternative for the demand of biocompatible and environmentally friendly food packaging. The aim of this study was to evaluate a composite film from regenerated cellulose combined with polyvinyl alcohol. Glycerol was used as a plasticizer. Mathematical models were used to describe the effect of the film structure on the mechanical (tensile strength, percentage of elongation at break) and barrier properties (water vapour permeability, light-barrier properties and transparency). The morphology, structural and thermal properties were evaluated by spectral analysis (FT-IR and UV-VIS-NIR), scanning electron microscopy and dif- ferential scanning calorimetry. Models predict cellulose-glycerol-polyvinyl alcohol films with tensile strength values from 25.9 to 369 MPa, similar to that of synthetic polymer films. The elongation at break of the developed films (0.89–18.7%) was lower than that of synthetic polymer films. The water vapour permeability obtained (2.32·10−11 - 3.01·10−11 g/s·m·Pa) was higher than that of petrochemical-based plastics. Cellulose films re- inforced with polyvinyl alcohol showed a smooth surface. Results showed that it is viable to accomplish com- posite films from cellulose-polyvinyl alcohol-glycerol with enhanced mechanical properties. The obtained films showed top values of transparency. The addition of glycerol resulted in films with a UV protective effect which could be important in food packaging to prevent lipid oxidative deterioration.
Ključne besede:Regenerated cellulose, Tensile strength, Water vapor permeability, Anti-plasticizer, DSC, UV protection
Leto izida:2019
Št. strani:481-491
Številčenje:1, 89
PID:20.500.12556/RUNG-6027 Novo okno
COBISS.SI-ID:42613507 Novo okno
DOI:10.1016/J.FOODHYD.2018.11.012 Novo okno
NUK URN:URN:SI:UNG:REP:LZQXZRE5
Datum objave v RUNG:14.12.2020
Število ogledov:3845
Število prenosov:0
Metapodatki:XML DC-XML DC-RDF
:
CAZÓN, Patricia, VELAZQUEZ, Gonzalo in VAZQUEZ, Manuel, 2019, Novel composite films from regenerated cellulose-glycerol-polyvinyl alcohol: Mechanical and barrier properties. Food Hydrocolloids [na spletu]. 2019. Vol. 1, no. 89, p. 481–491. [Dostopano 28 april 2025]. DOI 10.1016/J.FOODHYD.2018.11.012. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=6027
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Gradivo je del revije

Naslov:Food Hydrocolloids
Leto izida:2019

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
Začetek licenciranja:14.12.2020

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