20.500.12556/RUL-136936 Organosolv lignin barrier paper coatings from waste biomass resources 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. beech wood biomass Japanese knotweed invasive species barrier properties mechanical properties molecular weight distribution nuclear magnetic resonance size exclusion chromatography biomasa bukovega lesa invazivne vrste japonskega dresnika zaporne lastnosti mehanske lastnosti porazdelitev molekulske mase jedrska magnetna resonanca kromatografija true false true Angleški jezik Slovenski jezik Članek v reviji 2022-05-25 10:00:29 2022-05-25 10:00:31 2022-09-15 04:14:28 0000-00-00 00:00:00 2021 0 0 13 str. iss. 24, art. 4443 Vol. 13 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 676 2073-4360 10.3390/polym13244443 90166019 polymers-13-04443-v2.pdf polymers-13-04443-v2.pdf 1 C2B32D1B62D76294F4DE97F022ED74E6 4e1bb1ac0af4e85689e79c1d5204ed861814e181a31a1f2aa3b616efe8e25e7d e7c9797e-dc00-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=156753 https://www.mdpi.com/2073-4360/13/24/4443 1 9dfb4c0d-dc00-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=156752 Naravoslovnotehniška fakulteta 0 0 0