Effect of citric acid on the properties of sapwood of Pinus sylvestris submitted to thermomechanical treatment

Detalhes bibliográficos
Autor(a) principal: Crisóstomo, Matheus Couto
Data de Publicação: 2023
Outros Autores: Del Menezzi, Cláudio Henrique Soares, Militz, Holger, Kurkowiak, Katarzyna, Mayer, Aaron, Carvalho, Luísa, Martins, Jorge
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UnB
Texto Completo: http://repositorio2.unb.br/jspui/handle/10482/47518
https://doi.org/10.3390/f14091839
https://orcid.org/0000-0003-3369-2392
https://orcid.org/0000-0001-7083-9491
https://orcid.org/0000-0001-8259-1366
https://orcid.org/0000-0002-1108-9771
Resumo: The present study aimed to evaluate the effect of citric acid on the properties of solid pine wood, which were submitted to thermomechanical treatment. A preliminary test was performed in a previous study to evaluate the influence of different temperatures of pressing and concentrations of citric acid on the physical properties of wood. After choosing the best treatments (170 ◦C and 5% and 10% of citric acid), the effect of these on the chemical properties (SEM, FTIR and pH); on the density profile using an X-ray microtomography and on the resistance to aging through an abrasion test were evaluated. The result of the chemical analysis showed an increase of the presence of ester functional groups, as well as better coverage and higher acidity of the surface. The density profile technique allowed us to observe the formation of peaks of density on the surface where the acid was applied. Lastly, it was also possible to verify an increase in the resistance to abrasions because of the application of citric acid.
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spelling Effect of citric acid on the properties of sapwood of Pinus sylvestris submitted to thermomechanical treatmentÁcido cítricoMadeiraTratamento termomecânicoThe present study aimed to evaluate the effect of citric acid on the properties of solid pine wood, which were submitted to thermomechanical treatment. A preliminary test was performed in a previous study to evaluate the influence of different temperatures of pressing and concentrations of citric acid on the physical properties of wood. After choosing the best treatments (170 ◦C and 5% and 10% of citric acid), the effect of these on the chemical properties (SEM, FTIR and pH); on the density profile using an X-ray microtomography and on the resistance to aging through an abrasion test were evaluated. The result of the chemical analysis showed an increase of the presence of ester functional groups, as well as better coverage and higher acidity of the surface. The density profile technique allowed us to observe the formation of peaks of density on the surface where the acid was applied. Lastly, it was also possible to verify an increase in the resistance to abrasions because of the application of citric acid.Faculdade de Tecnologia (FT)Departamento de Engenharia Florestal (FT EFL)Programa de Pós-Graduação em Ciências FlorestaisMDPIUniversity of Brasília, Faculty of Technology, Department of Forest EngineeringUniversity of Brasília, Faculty of Technology, Department of Forest EngineeringUniversity of Goettingen, Wood Biology and Wood ProductsUniversity of Goettingen, Wood Biology and Wood ProductsUniversity of Goettingen, Wood Biology and Wood ProductsPolytechnic Institute of Viseu, Department of Wood EngineeringPolytechnic Institute of Viseu, Department of Wood EngineeringCrisóstomo, Matheus CoutoDel Menezzi, Cláudio Henrique SoaresMilitz, HolgerKurkowiak, KatarzynaMayer, AaronCarvalho, LuísaMartins, Jorge2024-01-26T13:11:31Z2024-01-26T13:11:31Z2023-09-09info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfCRISOSTOMO, Matheus et al. Effect of citric acid on the properties of sapwood of Pinus sylvestris submitted to thermomechanical treatment. Forests, v.14, n. 9, 1839, 2023. DOI: https://doi.org/10.3390/f14091839. Disponível em: https://www.mdpi.com/1999-4907/14/9/1839. Acesso em: 26 jan. 2024.http://repositorio2.unb.br/jspui/handle/10482/47518https://doi.org/10.3390/f14091839https://orcid.org/0000-0003-3369-2392https://orcid.org/0000-0001-7083-9491https://orcid.org/0000-0001-8259-1366https://orcid.org/0000-0002-1108-9771engCopyright: © 2023 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 (https:// creativecommons.org/licenses/by/ 4.0/).info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UnBinstname:Universidade de Brasília (UnB)instacron:UNB2024-01-26T13:11:31Zoai:repositorio.unb.br:10482/47518Repositório InstitucionalPUBhttps://repositorio.unb.br/oai/requestrepositorio@unb.bropendoar:2024-01-26T13:11:31Repositório Institucional da UnB - Universidade de Brasília (UnB)false
dc.title.none.fl_str_mv Effect of citric acid on the properties of sapwood of Pinus sylvestris submitted to thermomechanical treatment
title Effect of citric acid on the properties of sapwood of Pinus sylvestris submitted to thermomechanical treatment
spellingShingle Effect of citric acid on the properties of sapwood of Pinus sylvestris submitted to thermomechanical treatment
Crisóstomo, Matheus Couto
Ácido cítrico
Madeira
Tratamento termomecânico
title_short Effect of citric acid on the properties of sapwood of Pinus sylvestris submitted to thermomechanical treatment
title_full Effect of citric acid on the properties of sapwood of Pinus sylvestris submitted to thermomechanical treatment
title_fullStr Effect of citric acid on the properties of sapwood of Pinus sylvestris submitted to thermomechanical treatment
title_full_unstemmed Effect of citric acid on the properties of sapwood of Pinus sylvestris submitted to thermomechanical treatment
title_sort Effect of citric acid on the properties of sapwood of Pinus sylvestris submitted to thermomechanical treatment
author Crisóstomo, Matheus Couto
author_facet Crisóstomo, Matheus Couto
Del Menezzi, Cláudio Henrique Soares
Militz, Holger
Kurkowiak, Katarzyna
Mayer, Aaron
Carvalho, Luísa
Martins, Jorge
author_role author
author2 Del Menezzi, Cláudio Henrique Soares
Militz, Holger
Kurkowiak, Katarzyna
Mayer, Aaron
Carvalho, Luísa
Martins, Jorge
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv University of Brasília, Faculty of Technology, Department of Forest Engineering
University of Brasília, Faculty of Technology, Department of Forest Engineering
University of Goettingen, Wood Biology and Wood Products
University of Goettingen, Wood Biology and Wood Products
University of Goettingen, Wood Biology and Wood Products
Polytechnic Institute of Viseu, Department of Wood Engineering
Polytechnic Institute of Viseu, Department of Wood Engineering
dc.contributor.author.fl_str_mv Crisóstomo, Matheus Couto
Del Menezzi, Cláudio Henrique Soares
Militz, Holger
Kurkowiak, Katarzyna
Mayer, Aaron
Carvalho, Luísa
Martins, Jorge
dc.subject.por.fl_str_mv Ácido cítrico
Madeira
Tratamento termomecânico
topic Ácido cítrico
Madeira
Tratamento termomecânico
description The present study aimed to evaluate the effect of citric acid on the properties of solid pine wood, which were submitted to thermomechanical treatment. A preliminary test was performed in a previous study to evaluate the influence of different temperatures of pressing and concentrations of citric acid on the physical properties of wood. After choosing the best treatments (170 ◦C and 5% and 10% of citric acid), the effect of these on the chemical properties (SEM, FTIR and pH); on the density profile using an X-ray microtomography and on the resistance to aging through an abrasion test were evaluated. The result of the chemical analysis showed an increase of the presence of ester functional groups, as well as better coverage and higher acidity of the surface. The density profile technique allowed us to observe the formation of peaks of density on the surface where the acid was applied. Lastly, it was also possible to verify an increase in the resistance to abrasions because of the application of citric acid.
publishDate 2023
dc.date.none.fl_str_mv 2023-09-09
2024-01-26T13:11:31Z
2024-01-26T13:11:31Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv CRISOSTOMO, Matheus et al. Effect of citric acid on the properties of sapwood of Pinus sylvestris submitted to thermomechanical treatment. Forests, v.14, n. 9, 1839, 2023. DOI: https://doi.org/10.3390/f14091839. Disponível em: https://www.mdpi.com/1999-4907/14/9/1839. Acesso em: 26 jan. 2024.
http://repositorio2.unb.br/jspui/handle/10482/47518
https://doi.org/10.3390/f14091839
https://orcid.org/0000-0003-3369-2392
https://orcid.org/0000-0001-7083-9491
https://orcid.org/0000-0001-8259-1366
https://orcid.org/0000-0002-1108-9771
identifier_str_mv CRISOSTOMO, Matheus et al. Effect of citric acid on the properties of sapwood of Pinus sylvestris submitted to thermomechanical treatment. Forests, v.14, n. 9, 1839, 2023. DOI: https://doi.org/10.3390/f14091839. Disponível em: https://www.mdpi.com/1999-4907/14/9/1839. Acesso em: 26 jan. 2024.
url http://repositorio2.unb.br/jspui/handle/10482/47518
https://doi.org/10.3390/f14091839
https://orcid.org/0000-0003-3369-2392
https://orcid.org/0000-0001-7083-9491
https://orcid.org/0000-0001-8259-1366
https://orcid.org/0000-0002-1108-9771
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Repositório Institucional da UnB
instname:Universidade de Brasília (UnB)
instacron:UNB
instname_str Universidade de Brasília (UnB)
instacron_str UNB
institution UNB
reponame_str Repositório Institucional da UnB
collection Repositório Institucional da UnB
repository.name.fl_str_mv Repositório Institucional da UnB - Universidade de Brasília (UnB)
repository.mail.fl_str_mv repositorio@unb.br
_version_ 1814508242308431872

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