ArticlePolymers2022
Synthesis and Characterizations of Eco-Friendly Organosolv Lignin-Based Polyurethane Coating Films for the Coating Industry.
Article in Polymers, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 31 citations in OpenAlex.
- Layer Thickness Effects on the Ageing Performance and Mould Resistance of Polyurethane-Coated Beech Wood.Polymers · 2026Article
- A New Lignin-Based Polyurethane Film for Wood: Decay, Artificial Weathering, Physical and Morphological Characterization.Molecules (Basel, Switzerland) · 2025Article
- Review
- Conversion of Lignin to Nitrogenous Chemicals and Functional Materials.Materials (Basel, Switzerland) · 2024Review
- Spray Coating of Wood with Nanoparticles from Lignin and Polylactic Glycolic Acid Loaded with Thyme Essential Oils.Polymers · 2024Article
- Article
- Article
- Effect of Two Different Ageing Exposures on the Colour Stability of Transparent Polyurethane Finishing.Polymers · 2023Article
- Lignin Nanoparticles with EntrappedPolymers · 2023Article
- Encapsulation of AgNPs in a Lignin Isocyanate Film: Characterization and Antimicrobial Properties.Materials (Basel, Switzerland) · 2023Article
- Development of BioPolyurethane Coatings from Biomass-Derived Alkylphenol Polyols-A Green Alternative.Polymers · 2023Article
- Tuning the Properties of Biobased PU Coatings via Selective Lignin Fractionation and Partial Depolymerization.ACS sustainable chemistry & engineering · 2023Article
- High electrolyte uptake of MXene integrated membrane separators for Zn-ion batteries.Scientific reports · 2022Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
Three different formulations of bio-based polyurethane (PU), varying the weight ratio between Organosolv lignin and a commercial isocyanate, were synthesized. The coating formulations were characterized by SEM, pyrolysis-GC/MS, FTIR spectroscopy and FTIR mapping, which confirmed the successful formation of urethane bonds between commercial isocyanate and hydroxyl groups deriving from lignin. The coatings were applied on beech wood samples to measure color and contact angles, and eventually FTIR mapping of the coated wood samples was performed. FTIR mapping is an interesting tool to monitor the distribution of PU chemical bonds on the coating surface and to evaluate the homogeneity of the applied coating films. Increasing the lignin content of the PU coatings results in more red-yellow and darker tones, while the commercial PU coating is transparent. For a higher lignin concentration, the solid content as well as the weight gain of the applied coatings increase. A higher percentage of lignin in the prepared PU formulations leads to superficial cracks and therefore higher coating permeability compared to the commercial PU, but the prepared lignin-based PU coating still makes a raw wood surface significantly more hydrophobic. Apparently, additives such as film-formers with low surface tension to counteract cracks' formation are necessary to improve the performance of lignin-based PU coatings.
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