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Naslov:Characterization of mechanical and barrier properties of bacterial cellulose, glycerol and polyvinyl alcohol (PVOH) composite films with eco-friendly UV-protective 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:Highly flexible composite films based on bacterial cellulose, glycerol and polyvinyl alcohol (PVOH) with UV barrier properties were developed. The open nanoscale network of bacterial cellulose allowed to combine it with glycerol and polyvinyl alcohol by immersion. This procedure kept intact the bacterial cellulose structure. The interactions among bacterial cellulose, glycerol and PVOH were analyzed using scanning electron microscopy, infrared spectroscopy, thermogravimetry and differential scanning calorimetry. In general, the addition of PVOH reinforced the bacterial cellulose matrix, meanwhile glycerol showed a significant plasticizing effect. Formulations with PVOH and glycerol reached a maximum value of 49.89% of elongation and a good resistance to rupture of 13.78 MPa. The water vapour permeability ranged from 1.87·10−11 to 2.04·10−10 g/m s Pa. The UV-VIS spectral analysis showed that glycerol decreased the transmittance in the UV area and polyvinyl alcohol enhanced the transparency values of the samples in the VIS region. The transmittance in the UV-A, UV-B and UV- C areas for films based on bacterial cellulose with glycerol reached up to 5.59, 2.4 and 0.57%, respectively.
Ključne besede:Acetobacter xylinum, Tensile strength, Percentage of elongation at break, Young's modulus, Eco-friendly film
Leto izida:2020
Št. strani:105323
Številčenje:1, 99
PID:20.500.12556/RUNG-6024 Novo okno
COBISS.SI-ID:42574595 Novo okno
DOI:10.1016/J.FOODHYD.2019.105323 Novo okno
NUK URN:URN:SI:UNG:REP:YXRZHSK6
Datum objave v RUNG:14.12.2020
Število ogledov:3451
Število prenosov:0
Metapodatki:XML DC-XML DC-RDF
:
CAZÓN, Patricia, VELAZQUEZ, Gonzalo in VAZQUEZ, Manuel, 2020, Characterization of mechanical and barrier properties of bacterial cellulose, glycerol and polyvinyl alcohol (PVOH) composite films with eco-friendly UV-protective properties. Food Hydrocolloids [na spletu]. 2020. Vol. 1, no. 99. [Dostopano 15 april 2025]. DOI 10.1016/J.FOODHYD.2019.105323. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=6024
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Gradivo je del revije

Naslov:Food Hydrocolloids
Leto izida:2020

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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