Drying and physical properties of rubber wood impregnated with silver nanoparticles
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Revista de Ciências Agrárias (Belém. Online) |
Texto Completo: | https://ajaes.ufra.edu.br/index.php/ajaes/article/view/3441 |
Resumo: | Rubber wood can be used after latex exploration however, the high contents of carbohydrates contribute to its low biological durability, making natural drying impossible. Wood treatment with silver nanoparticles can improve physical, mechanical and biological properties, catalyze the drying process, reduce hygroscopicity, and increase dimensional stability and biological resistance. The objective of this research was to evaluate the effects of impregnation of silver nanoparticles and vaporization on the drying rate, volumetric, radial and tangential contractions and the anisotropy coefficient of Hevea brasiliensis wood. Samples from two clones (PB311-MDF180 and TP875) were subjected to a vaporization process for 24 hours to increase permeability, also to an application of vacuum (750 mmHg) to remove vessels and pits obstructions, and subsequently to impregnation with silver nanoparticles (22 ppm). The variables were monitored (every 15 minutes until the samples reached 12 % moisture) of the mass loss and dimensions of the pieces submitted to drying in an oven (65 °C). In general, the treatments with previous application of 30 and 60 minutes of vacuum followed by impregnation of silver nanoparticles (I30 and I60, respectively) had the best performance. Thus, the impregnation with silver nanoparticles provides significant gains in drying time and dimensional stability of rubber wood. |
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Drying and physical properties of rubber wood impregnated with silver nanoparticlesDrying and physical properties of rubber wood impregnated with silver nanoparticlesHevea brasiliensisnanotechnologyvolumetric contractionWood treatmentnanotechnologyHevea brasiliensisnanotecnologiacontração volumétricaTratamento da madeirananotecnologiaRubber wood can be used after latex exploration however, the high contents of carbohydrates contribute to its low biological durability, making natural drying impossible. Wood treatment with silver nanoparticles can improve physical, mechanical and biological properties, catalyze the drying process, reduce hygroscopicity, and increase dimensional stability and biological resistance. The objective of this research was to evaluate the effects of impregnation of silver nanoparticles and vaporization on the drying rate, volumetric, radial and tangential contractions and the anisotropy coefficient of Hevea brasiliensis wood. Samples from two clones (PB311-MDF180 and TP875) were subjected to a vaporization process for 24 hours to increase permeability, also to an application of vacuum (750 mmHg) to remove vessels and pits obstructions, and subsequently to impregnation with silver nanoparticles (22 ppm). The variables were monitored (every 15 minutes until the samples reached 12 % moisture) of the mass loss and dimensions of the pieces submitted to drying in an oven (65 °C). In general, the treatments with previous application of 30 and 60 minutes of vacuum followed by impregnation of silver nanoparticles (I30 and I60, respectively) had the best performance. Thus, the impregnation with silver nanoparticles provides significant gains in drying time and dimensional stability of rubber wood.A madeira de seringueira pode ser utilizada após a exploração do látex, entretanto, os altos teores de carboidratos contribuem com sua baixa durabilidade biológica, inviabilizando a secagem natural. O tratamento da madeira com nanopartículas de prata pode melhorar as propriedades físicas, mecânicas e biológicas, catalisar o processo de secagem, reduzir a higroscopicidade, aumentar a estabilidade dimensional e resistência biológica. O objetivo deste trabalho foi avaliar os efeitos da impregnação de nanopartículas de prata e da vaporização sobre a taxa de secagem, as contrações volumétrica, radial e tangencial e o coeficiente de anisotropia da madeira de Hevea brasiliensis. Amostras de dois clones (PB311-MDF180 e TP875) foram submetidas a um processo de vaporização por 24 horas para aumento da permeabilidade, à aplicação de vácuo (750 mmHg) para desobstrução de vasos e pontoações, e posteriormente, à impregnação com nanopartículas de prata (22 ppm). As variáveis foram monitoradas (a cada 15 minutos até as amostras atingirem 12 % de umidade) quanto à perda de massa e das dimensões das peças submetidas à secagem em estufa (65 °C). Em geral, os tratamentos com prévia aplicação de 30 e 60 minutos de vácuo seguidos de impregnação de nanopartículas de prata (I30 e I60, respectivamente) obtiveram os melhores desempenhos. Assim, a impregnação de nanopartículas de prata proporciona ganhos significativos no tempo de secagem e na estabilidade dimensional da madeira de seringueira.Universidade Federal Rural da Amazônia/UFRA2022-01-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionTextoinfo:eu-repo/semantics/otherapplication/pdfhttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/3441Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 65 (2022): RCA AJAESRevista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 65 (2022): RCA AJAES2177-87601517-591Xreponame:Revista de Ciências Agrárias (Belém. Online)instname:Universidade Federal Rural da Amazônia (UFRA)instacron:UFRAporhttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/3441/1646Copyright (c) 2022 João Vicente de Figueiredo Latorraca, Sabrina Mayer de Almeida, José Henrique Camargo Pace, Jonnys Paz Castro, Glaycianne Christine Vieira dos Santos, Carlos Eduardo Silveira da Silvahttps://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessde Figueiredo Latorraca, João VicenteMayer de Almeida, Sabrina Henrique Camargo Pace, José Paz Castro, JonnysChristine Vieira dos Santos, Glaycianne Silveira da Silva, Carlos Eduardo2022-07-05T15:09:29Zoai:ojs.www.periodicos.ufra.edu.br:article/3441Revistahttps://ajaes.ufra.edu.br/index.php/ajaes/PUBhttps://ajaes.ufra.edu.br/index.php/ajaes/oaiallan.lobato@ufra.edu.br || ajaes.suporte@gmail.com2177-87601517-591Xopendoar:2022-07-05T15:09:29Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA)false |
dc.title.none.fl_str_mv |
Drying and physical properties of rubber wood impregnated with silver nanoparticles Drying and physical properties of rubber wood impregnated with silver nanoparticles |
title |
Drying and physical properties of rubber wood impregnated with silver nanoparticles |
spellingShingle |
Drying and physical properties of rubber wood impregnated with silver nanoparticles de Figueiredo Latorraca, João Vicente Hevea brasiliensis nanotechnology volumetric contraction Wood treatment nanotechnology Hevea brasiliensis nanotecnologia contração volumétrica Tratamento da madeira nanotecnologia |
title_short |
Drying and physical properties of rubber wood impregnated with silver nanoparticles |
title_full |
Drying and physical properties of rubber wood impregnated with silver nanoparticles |
title_fullStr |
Drying and physical properties of rubber wood impregnated with silver nanoparticles |
title_full_unstemmed |
Drying and physical properties of rubber wood impregnated with silver nanoparticles |
title_sort |
Drying and physical properties of rubber wood impregnated with silver nanoparticles |
author |
de Figueiredo Latorraca, João Vicente |
author_facet |
de Figueiredo Latorraca, João Vicente Mayer de Almeida, Sabrina Henrique Camargo Pace, José Paz Castro, Jonnys Christine Vieira dos Santos, Glaycianne Silveira da Silva, Carlos Eduardo |
author_role |
author |
author2 |
Mayer de Almeida, Sabrina Henrique Camargo Pace, José Paz Castro, Jonnys Christine Vieira dos Santos, Glaycianne Silveira da Silva, Carlos Eduardo |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
de Figueiredo Latorraca, João Vicente Mayer de Almeida, Sabrina Henrique Camargo Pace, José Paz Castro, Jonnys Christine Vieira dos Santos, Glaycianne Silveira da Silva, Carlos Eduardo |
dc.subject.por.fl_str_mv |
Hevea brasiliensis nanotechnology volumetric contraction Wood treatment nanotechnology Hevea brasiliensis nanotecnologia contração volumétrica Tratamento da madeira nanotecnologia |
topic |
Hevea brasiliensis nanotechnology volumetric contraction Wood treatment nanotechnology Hevea brasiliensis nanotecnologia contração volumétrica Tratamento da madeira nanotecnologia |
description |
Rubber wood can be used after latex exploration however, the high contents of carbohydrates contribute to its low biological durability, making natural drying impossible. Wood treatment with silver nanoparticles can improve physical, mechanical and biological properties, catalyze the drying process, reduce hygroscopicity, and increase dimensional stability and biological resistance. The objective of this research was to evaluate the effects of impregnation of silver nanoparticles and vaporization on the drying rate, volumetric, radial and tangential contractions and the anisotropy coefficient of Hevea brasiliensis wood. Samples from two clones (PB311-MDF180 and TP875) were subjected to a vaporization process for 24 hours to increase permeability, also to an application of vacuum (750 mmHg) to remove vessels and pits obstructions, and subsequently to impregnation with silver nanoparticles (22 ppm). The variables were monitored (every 15 minutes until the samples reached 12 % moisture) of the mass loss and dimensions of the pieces submitted to drying in an oven (65 °C). In general, the treatments with previous application of 30 and 60 minutes of vacuum followed by impregnation of silver nanoparticles (I30 and I60, respectively) had the best performance. Thus, the impregnation with silver nanoparticles provides significant gains in drying time and dimensional stability of rubber wood. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-13 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Texto info:eu-repo/semantics/other |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/3441 |
url |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/3441 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/3441/1646 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural da Amazônia/UFRA |
publisher.none.fl_str_mv |
Universidade Federal Rural da Amazônia/UFRA |
dc.source.none.fl_str_mv |
Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 65 (2022): RCA AJAES Revista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 65 (2022): RCA AJAES 2177-8760 1517-591X reponame:Revista de Ciências Agrárias (Belém. Online) instname:Universidade Federal Rural da Amazônia (UFRA) instacron:UFRA |
instname_str |
Universidade Federal Rural da Amazônia (UFRA) |
instacron_str |
UFRA |
institution |
UFRA |
reponame_str |
Revista de Ciências Agrárias (Belém. Online) |
collection |
Revista de Ciências Agrárias (Belém. Online) |
repository.name.fl_str_mv |
Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA) |
repository.mail.fl_str_mv |
allan.lobato@ufra.edu.br || ajaes.suporte@gmail.com |
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1797231630369161216 |