Bio-based coatings for reducing water sorption in natural fibre reinforced composites

Abstract In this study, bio-based coatings were used for reducing water sorption of composites containing flame retardant treated natural fibres and phenolic resin. Two types of coatings; polyfurfuryl alcohol resin (PFA) and polyurethane (PU) were used on the composites and compared with a water res...

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Autores principales: T. H. Mokhothu, M. J. John
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/857a43dbee9d4b798055cebdce382739
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spelling oai:doaj.org-article:857a43dbee9d4b798055cebdce3827392021-12-02T15:06:12ZBio-based coatings for reducing water sorption in natural fibre reinforced composites10.1038/s41598-017-13859-22045-2322https://doaj.org/article/857a43dbee9d4b798055cebdce3827392017-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-13859-2https://doaj.org/toc/2045-2322Abstract In this study, bio-based coatings were used for reducing water sorption of composites containing flame retardant treated natural fibres and phenolic resin. Two types of coatings; polyfurfuryl alcohol resin (PFA) and polyurethane (PU) were used on the composites and compared with a water resistant market product. Uncoated and coated samples were conditioned at 90 °C and relative humidity of 90% for three days and the relative moisture content and mechanical properties after conditioning were analysed. In addition, the changes in the weight loss of the conditioned samples were also investigated by thermogravimetric analysis. The moisture diffusion characteristics of coated laminates were also studied at room temperature under water immersion conditions. PFA coated samples showed better moisture resistance and mechanical performance than other bio-based coatings when subjected to long term environmental aging.T. H. MokhothuM. J. JohnNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
T. H. Mokhothu
M. J. John
Bio-based coatings for reducing water sorption in natural fibre reinforced composites
description Abstract In this study, bio-based coatings were used for reducing water sorption of composites containing flame retardant treated natural fibres and phenolic resin. Two types of coatings; polyfurfuryl alcohol resin (PFA) and polyurethane (PU) were used on the composites and compared with a water resistant market product. Uncoated and coated samples were conditioned at 90 °C and relative humidity of 90% for three days and the relative moisture content and mechanical properties after conditioning were analysed. In addition, the changes in the weight loss of the conditioned samples were also investigated by thermogravimetric analysis. The moisture diffusion characteristics of coated laminates were also studied at room temperature under water immersion conditions. PFA coated samples showed better moisture resistance and mechanical performance than other bio-based coatings when subjected to long term environmental aging.
format article
author T. H. Mokhothu
M. J. John
author_facet T. H. Mokhothu
M. J. John
author_sort T. H. Mokhothu
title Bio-based coatings for reducing water sorption in natural fibre reinforced composites
title_short Bio-based coatings for reducing water sorption in natural fibre reinforced composites
title_full Bio-based coatings for reducing water sorption in natural fibre reinforced composites
title_fullStr Bio-based coatings for reducing water sorption in natural fibre reinforced composites
title_full_unstemmed Bio-based coatings for reducing water sorption in natural fibre reinforced composites
title_sort bio-based coatings for reducing water sorption in natural fibre reinforced composites
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/857a43dbee9d4b798055cebdce382739
work_keys_str_mv AT thmokhothu biobasedcoatingsforreducingwatersorptioninnaturalfibrereinforcedcomposites
AT mjjohn biobasedcoatingsforreducingwatersorptioninnaturalfibrereinforcedcomposites
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