Preparation of Lignin Nanoparticles from Wood Waste for Wood Surface Treatment

• DOI: 10.3390/nano9020281
• Publication Date: 2019-02-18T03:11:50Z
• Authors: Florian Zikeli; Vittorio Vinciguerra; Alessandro D’Anni...; Donatella Capitani; Manuela Romagnoli; Giuseppe Scarasci...
• Keywords: Sawdust

Lignin was isolated from wood wastes comprising Iroko sawdust (IR) and mixed Norway spruce (IRNS), furnished by a local houses producer. The respective acidolysis lignin fractions were structurally characterized using pyrolysis (Py)-GCMS, two-dimensional heteronuclear single quantum correlation nuclear magnetic resonance (2D HSQC NMR), Fourier-transform infrared FTIR ultraviolet-visible (UV-VIS) spectroscopies, size exclusion chromatography, standard wet-chemistry methods for Klason polysaccharides determination. subsequently used the preparation of nanoparticles (LNPs) non-solvent method. LNPs then surface treatment dip-coating technique. coated samples analyzed colorimetry scanning electron microscopy (SEM) before after artificial weathering experiments in UV chamber to investigate protection potential coatings. Wood dip-coated with showed promising modifications resembling sort film fused LNPs. Coatings made IR-LNPs IRNS-LNPs performed significantly better than uncoated reference samples.