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Application and characterization of a novel PVDF-HFP/PVP polymer composite with MoO(3) nanowires as a protective coating for wood

The coatings on wood must sometimes give aesthetic and basic protection to wooden elements and prevent the development and transmission of microorganisms. Several polymers containing different nanoparticles have already been offered to day for this purpose. The research presents a novel poly(vinylid...

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Autores principales: Žigon, Jure, Centa, Urška Gradišar, Remškar, Maja, Humar, Miha
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9977942/
https://www.ncbi.nlm.nih.gov/pubmed/36859559
http://dx.doi.org/10.1038/s41598-023-30622-y
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author Žigon, Jure
Centa, Urška Gradišar
Remškar, Maja
Humar, Miha
author_facet Žigon, Jure
Centa, Urška Gradišar
Remškar, Maja
Humar, Miha
author_sort Žigon, Jure
collection PubMed
description The coatings on wood must sometimes give aesthetic and basic protection to wooden elements and prevent the development and transmission of microorganisms. Several polymers containing different nanoparticles have already been offered to day for this purpose. The research presents a novel poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP)/polyvinylpyrrolidone (PVP) polymer composite with MoO(3) nanowires with the ability to form coating films on wood. The films of the developed coating exhibit elastic behaviour, which depends on the coating film thickness [tested wet film thicknesses (90, 180 and 360) µm]. The coating showed the ability to interact well with the surface of common beech (Fagus sylvatica L.) wood, in terms of wetting (contact angles of 15.6°), fast spilling on the surface, good penetration of the coating in wood structure and formation of up to 40 µm-thick films with excellent pull-off adhesion strength (6 MPa). An increased roughness of wood coated with C + MoO(3) was a consequence of wood etching by the dimethylformamide solvent present in the coating. Moreover, the presence of C + MoO(3) on wood made it considerably more hydrophobic, with contact angle of water raising to 123° from initially 46° measured on uncoated wood. The irradiation of wood surfaces with ultra-violet light resulted in visible colour changes on both uncoated and coated wood. The wood coated with C + MoO(3) has a good resistance to water, alcohol and dry heat (grade 3 to 4). The antimicrobial testing showed that the presence of MoO(3) in the coating plays an important role in the resistance of the coated wood to blue-stain fungi and mould development. The developed PVDF-HFP/PVP/MoO(3) coating has an excellent ability to interact with the wood surface and has the potential to be used as a protection for wood in sensitive environments.
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spelling pubmed-99779422023-03-03 Application and characterization of a novel PVDF-HFP/PVP polymer composite with MoO(3) nanowires as a protective coating for wood Žigon, Jure Centa, Urška Gradišar Remškar, Maja Humar, Miha Sci Rep Article The coatings on wood must sometimes give aesthetic and basic protection to wooden elements and prevent the development and transmission of microorganisms. Several polymers containing different nanoparticles have already been offered to day for this purpose. The research presents a novel poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP)/polyvinylpyrrolidone (PVP) polymer composite with MoO(3) nanowires with the ability to form coating films on wood. The films of the developed coating exhibit elastic behaviour, which depends on the coating film thickness [tested wet film thicknesses (90, 180 and 360) µm]. The coating showed the ability to interact well with the surface of common beech (Fagus sylvatica L.) wood, in terms of wetting (contact angles of 15.6°), fast spilling on the surface, good penetration of the coating in wood structure and formation of up to 40 µm-thick films with excellent pull-off adhesion strength (6 MPa). An increased roughness of wood coated with C + MoO(3) was a consequence of wood etching by the dimethylformamide solvent present in the coating. Moreover, the presence of C + MoO(3) on wood made it considerably more hydrophobic, with contact angle of water raising to 123° from initially 46° measured on uncoated wood. The irradiation of wood surfaces with ultra-violet light resulted in visible colour changes on both uncoated and coated wood. The wood coated with C + MoO(3) has a good resistance to water, alcohol and dry heat (grade 3 to 4). The antimicrobial testing showed that the presence of MoO(3) in the coating plays an important role in the resistance of the coated wood to blue-stain fungi and mould development. The developed PVDF-HFP/PVP/MoO(3) coating has an excellent ability to interact with the wood surface and has the potential to be used as a protection for wood in sensitive environments. Nature Publishing Group UK 2023-03-01 /pmc/articles/PMC9977942/ /pubmed/36859559 http://dx.doi.org/10.1038/s41598-023-30622-y Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Žigon, Jure
Centa, Urška Gradišar
Remškar, Maja
Humar, Miha
Application and characterization of a novel PVDF-HFP/PVP polymer composite with MoO(3) nanowires as a protective coating for wood
title Application and characterization of a novel PVDF-HFP/PVP polymer composite with MoO(3) nanowires as a protective coating for wood
title_full Application and characterization of a novel PVDF-HFP/PVP polymer composite with MoO(3) nanowires as a protective coating for wood
title_fullStr Application and characterization of a novel PVDF-HFP/PVP polymer composite with MoO(3) nanowires as a protective coating for wood
title_full_unstemmed Application and characterization of a novel PVDF-HFP/PVP polymer composite with MoO(3) nanowires as a protective coating for wood
title_short Application and characterization of a novel PVDF-HFP/PVP polymer composite with MoO(3) nanowires as a protective coating for wood
title_sort application and characterization of a novel pvdf-hfp/pvp polymer composite with moo(3) nanowires as a protective coating for wood
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9977942/
https://www.ncbi.nlm.nih.gov/pubmed/36859559
http://dx.doi.org/10.1038/s41598-023-30622-y
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