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Analysis of Larch-Bark Capacity for Formaldehyde Removal in Wood Adhesives

Ecofriendly wood-based materials are required by consumers at present. Decorative panels are part of a large group of wood-composite materials, and their environmental properties must not be neglected. More environmentally friendly decorative panels can be achieved by various methods. This paper des...

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Autores principales: Tudor, Eugenia Mariana, Barbu, Marius Catalin, Petutschnigg, Alexander, Réh, Roman, Krišťák, Ľuboš
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7037390/
https://www.ncbi.nlm.nih.gov/pubmed/31991748
http://dx.doi.org/10.3390/ijerph17030764
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author Tudor, Eugenia Mariana
Barbu, Marius Catalin
Petutschnigg, Alexander
Réh, Roman
Krišťák, Ľuboš
author_facet Tudor, Eugenia Mariana
Barbu, Marius Catalin
Petutschnigg, Alexander
Réh, Roman
Krišťák, Ľuboš
author_sort Tudor, Eugenia Mariana
collection PubMed
description Ecofriendly wood-based materials are required by consumers at present. Decorative panels are part of a large group of wood-composite materials, and their environmental properties must not be neglected. More environmentally friendly decorative panels can be achieved by various methods. This paper describes a method of production from larch bark. Tree bark, as a byproduct of the wood industry, is one of the research topics that have gained interest in the last decade, especially for its applications in biobased lignocomposites, with regard to the shrinkage of wood resources. In the present work, the formaldehyde content of decorative boards based on larch bark (0.6 g/cm(3)) was analyzed when bonded with five different types of adhesive systems: urea-formaldehyde, polyvinyl acetate, the mixture of 70% urea-formaldehyde + 30% polyvinyl acetate, polyurethane, and tannin-based adhesive. A self-agglomerated board was also analyzed. The formaldehyde content of the larch-bark samples was determined with the perforator method (EN 120:2011), and findings showed that all tested samples reached the E1 classification (≤8 mg/100 oven dry). Moreover, 75% of the values of the corrected formaldehyde content were included in the super-E0 class (≤1.5 mg/100 oven dry). In the case of boards bonded with tannin-based adhesive, this natural polymer acted as a formaldehyde scavenger.
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spelling pubmed-70373902020-03-11 Analysis of Larch-Bark Capacity for Formaldehyde Removal in Wood Adhesives Tudor, Eugenia Mariana Barbu, Marius Catalin Petutschnigg, Alexander Réh, Roman Krišťák, Ľuboš Int J Environ Res Public Health Article Ecofriendly wood-based materials are required by consumers at present. Decorative panels are part of a large group of wood-composite materials, and their environmental properties must not be neglected. More environmentally friendly decorative panels can be achieved by various methods. This paper describes a method of production from larch bark. Tree bark, as a byproduct of the wood industry, is one of the research topics that have gained interest in the last decade, especially for its applications in biobased lignocomposites, with regard to the shrinkage of wood resources. In the present work, the formaldehyde content of decorative boards based on larch bark (0.6 g/cm(3)) was analyzed when bonded with five different types of adhesive systems: urea-formaldehyde, polyvinyl acetate, the mixture of 70% urea-formaldehyde + 30% polyvinyl acetate, polyurethane, and tannin-based adhesive. A self-agglomerated board was also analyzed. The formaldehyde content of the larch-bark samples was determined with the perforator method (EN 120:2011), and findings showed that all tested samples reached the E1 classification (≤8 mg/100 oven dry). Moreover, 75% of the values of the corrected formaldehyde content were included in the super-E0 class (≤1.5 mg/100 oven dry). In the case of boards bonded with tannin-based adhesive, this natural polymer acted as a formaldehyde scavenger. MDPI 2020-01-25 2020-02 /pmc/articles/PMC7037390/ /pubmed/31991748 http://dx.doi.org/10.3390/ijerph17030764 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tudor, Eugenia Mariana
Barbu, Marius Catalin
Petutschnigg, Alexander
Réh, Roman
Krišťák, Ľuboš
Analysis of Larch-Bark Capacity for Formaldehyde Removal in Wood Adhesives
title Analysis of Larch-Bark Capacity for Formaldehyde Removal in Wood Adhesives
title_full Analysis of Larch-Bark Capacity for Formaldehyde Removal in Wood Adhesives
title_fullStr Analysis of Larch-Bark Capacity for Formaldehyde Removal in Wood Adhesives
title_full_unstemmed Analysis of Larch-Bark Capacity for Formaldehyde Removal in Wood Adhesives
title_short Analysis of Larch-Bark Capacity for Formaldehyde Removal in Wood Adhesives
title_sort analysis of larch-bark capacity for formaldehyde removal in wood adhesives
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7037390/
https://www.ncbi.nlm.nih.gov/pubmed/31991748
http://dx.doi.org/10.3390/ijerph17030764
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