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Naslov:Cellulose-glycerol-polyvinyl alcohol composite films for food packaging: Evaluation of water adsorption, mechanical properties, light-barrier properties and transparency
Avtorji:ID Cazón, Patricia (Avtor)
ID Vazquez, Manuel (Avtor)
ID Velazquez, Gonzalo (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:Nowadays consumers are aware of environmental problems. As an alternative to petrochemical polymers for food packaging, researchers have been focused on biopolymeric materials as raw material. The aim of this study was to evaluate mechanical properties (toughness, burst strength and distance to burst), water adsorption, light- barrier properties and transparency of composite films based on cellulose, glycerol and polyvinyl alcohol. Scanning electron microscopy, spectral analysis (FT-IR and UV–VIS-NIR) and differential scanning calorimetry were performed to explain the morphology, structural and thermal properties of the films. Results showed that polyvinyl alcohol enhances the toughness of films up to 44.30 MJ/m3. However, toughness decreases when glycerol concentration is increased (from 23.41 to 10.55 MJ/m3). Water adsorption increased with increasing polyvinyl alcohol concentration up to 222%. Polyvinyl alcohol increased the film thickness. The films showed higher burst strength (up to 12014 g) than other biodegradable films. The films obtained have optimal values of transparency like those values of synthetic polymers. Glycerol produced a UV protective effect in the films, an important effect for food packaging to prevent lipid oxidative deterioration. Results showed that it is feasible to obtain cellulose-glycerol-polyvinyl alcohol composite films with improved properties.
Ključne besede:Cellulose, Toughness, Burst strength, Distance to burst, Water adsorption, Transparency
Leto izida:2018
Št. strani:432-443
Številčenje:1, 195
PID:20.500.12556/RUNG-6028 Novo okno
COBISS.SI-ID:42614275 Novo okno
DOI:10.1016/j.carbpol.2018.04.120 Novo okno
NUK URN:URN:SI:UNG:REP:WSNCMCBD
Datum objave v RUNG:14.12.2020
Število ogledov:3898
Število prenosov:0
Metapodatki:XML DC-XML DC-RDF
:
CAZÓN, Patricia, VAZQUEZ, Manuel in VELAZQUEZ, Gonzalo, 2018, Cellulose-glycerol-polyvinyl alcohol composite films for food packaging: Evaluation of water adsorption, mechanical properties, light-barrier properties and transparency. Carbohydrate Polymers [na spletu]. 2018. Vol. 1, no. 195, p. 432–443. [Dostopano 2 april 2025]. DOI 10.1016/j.carbpol.2018.04.120. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=6028
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Gradivo je del revije

Naslov:Carbohydrate Polymers
Leto izida:2018

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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