Organosolv lignin barrier paper coatings from waste biomass resources

Lavrič, Gregor (avtor), Zamljen, Aleksandra (avtor), Juhant Grkman, Janja (avtor), Jasiukaityte, Edita (avtor), Grilc, Miha (avtor), Likozar, Blaž (avtor), Gregor-Svetec, Diana (avtor), Vrabič Brodnjak, Urška (avtor)

The aim of the study was to isolate lignin from organosolv, beech tree (Fagus sylvatica), and Japanese knotweed (Reynoutria japonica), to use it for paper surface and to replace part of the non-renewable product resources with bio-based ones. A total of nine coated samples with different lignin formulations and starch were compounded, prepared, and evaluated. The basic (grammage, thickness, specific density), mechanical (elongation at break, tensile, burst and tear indices), and barrier properties (contact angle, water penetration, water vapour permeability, kit test) of the coated papers were investigated. The analysis showed no significant difference in tensile properties between uncoated and coated samples. Furthermore, the decrease in water vapour transmission rate and the lower contact angle for coated samples were nevertheless confirmed. The novel coating materials show promising products with very good barrier properties. Finally, the correlation between structural, morphological, and (other) natural lignin-based factors was revealed, highlighting the importance of parameters such as the equivalence ratio of aliphatic and phenolic hydroxyl groups or the average molecular weight. Tuning functionality by design could optimise performance in the future.

• Jezik: Angleški jezik
• Ključne besede: beech wood biomass, Japanese knotweed invasive species, barrier properties, mechanical properties, molecular weight distribution, nuclear magnetic resonance, size exclusion chromatography
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: NTF - Naravoslovnotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2021
• Št. strani: 13 str.
• Številčenje: Vol. 13, iss. 24, art. 4443
• PID: 20.500.12556/RUL-136936
• UDK: 676
• ISSN pri članku: 2073-4360
• DOI: 10.3390/polym13244443
• COBISS.SI-ID: 90166019
• Datum objave v RUL: 25.05.2022

Gradivo je del revije

• Naslov: Polymers
• Skrajšan naslov: Polymers
• Založnik: MDPI
• ISSN: 2073-4360
• COBISS.SI-ID: 517951257

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 17.12.2021

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: biomasa bukovega lesa, invazivne vrste japonskega dresnika, zaporne lastnosti, mehanske lastnosti, porazdelitev molekulske mase, jedrska magnetna resonanca, kromatografija