Chemical treatment of banana tree pseudostem particles aiming the production of particleboards
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/37992 |
Resumo: | Brazil is one of the major banana producers in the world, and consequently generates a great amount of residues from this crop, which could be utilized in particleboard production. The present work aimed to evaluate the effect of different chemical treatments of the particles of Musa sp. pseudostem, on their chemical and physical properties (basic density), and on the physical and mechanical properties of the particleboards produced with the same material. Five treatments were applied to the particles: 1) without treatment (control); 2) 2% acetic acid; 3) 0.5% NaOH; 4) acetone (1/1 in volume/volume); and 5) water. Panels with medium density were produced (0.70 g/cm3 ), bonded with 12% (in relation to the particle mass) of urea–formaldehyde adhesive. The pressing cycle was conducted at 160° C, under 4 MPa, during 8 min. The results obtained indicated that the chemical treatments performed in the particles of banana tree pseudostem affected their chemical composition. The basic density of the particles was 0.10 g/cm³, and only the NaOH treatment led to its increase for values around 0.13 g/cm³. The panels produced with particles without treatment (control) and particles treated with acetic acid presented the lowest values of water absorption and thickness swelling after 2 and 24 h of immersion. Mechanical properties of all the panels produced were below the minimum recommended by the standard CS 236-66 (Commercial Standard - CS, 1968). |
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Chemical treatment of banana tree pseudostem particles aiming the production of particleboardsTratamento químico de partículas de pseudocaule de bananeira visando à produção de painéis aglomeradosMusa sp.Lignocellulosic residuesChemical treatmentsResíduos lignocelulósicosTratamentos químicosBrazil is one of the major banana producers in the world, and consequently generates a great amount of residues from this crop, which could be utilized in particleboard production. The present work aimed to evaluate the effect of different chemical treatments of the particles of Musa sp. pseudostem, on their chemical and physical properties (basic density), and on the physical and mechanical properties of the particleboards produced with the same material. Five treatments were applied to the particles: 1) without treatment (control); 2) 2% acetic acid; 3) 0.5% NaOH; 4) acetone (1/1 in volume/volume); and 5) water. Panels with medium density were produced (0.70 g/cm3 ), bonded with 12% (in relation to the particle mass) of urea–formaldehyde adhesive. The pressing cycle was conducted at 160° C, under 4 MPa, during 8 min. The results obtained indicated that the chemical treatments performed in the particles of banana tree pseudostem affected their chemical composition. The basic density of the particles was 0.10 g/cm³, and only the NaOH treatment led to its increase for values around 0.13 g/cm³. The panels produced with particles without treatment (control) and particles treated with acetic acid presented the lowest values of water absorption and thickness swelling after 2 and 24 h of immersion. Mechanical properties of all the panels produced were below the minimum recommended by the standard CS 236-66 (Commercial Standard - CS, 1968).O Brasil é um dos maiores produtores de banana do mundo e, consequentemente, gera uma grande quantidade de resíduos provenientes dessa cultura, os quais poderiam ser aproveitados na produção de aglomerados. No presente trabalho, objetivou-se avaliar o efeito de diferentes tratamentos químicos nas partículas de pseudocaule da bananeira Musa sp. em suas propriedades químicas e físicas (densidade básica), além da influência desses tratamentos nas propriedades físicas e mecânicas de painéis aglomerados produzidos com o mesmo material. Foram realizados 5 tratamentos nas partículas, sendo: 1) sem tratamento (testemunha); 2) ácido acético 2% ; 3) NaOH 0,5 %, 4) acetona (1/1 em volume/volume); e 5) água. Os painéis produzidos foram de média densidade (0,70 g/cm3 ), encolados com o adesivo ureia–formaldeído a 12% (em relação à massa de partículas). O ciclo de prensagem utilizado foi 4 MPa de pressão, a uma temperatura de 160° C, por um período de 8 min. Os resultados obtidos indicaram que todos os tratamentos químicos realizados nas partículas de pseudocaule da bananeira afetaram a composição química do material. A densidade básica das partículas do pseudocaule foi de 0,10 g/cm³ e o tratamento com NaOH foi o único que afetou essa propriedade, ocasionando seu aumento para 0,13 g/cm³. Os painéis produzidos com as partículas sem tratamento (testemunha), e com as tratadas com ácido acético foram os que apresentaram menores valores de absorção de água e inchamento em espessura após 2 e 24 h de imersão. As propriedades mecânicas de todos os painéis produzidos ficaram abaixo do mínimo recomendado pela norma CS 236-66 (Commercial Standard - CS, 1968).Universidade Federal de Lavras2019-12-04T17:51:52Z2019-12-04T17:51:52Z2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfGUIMARÃES, B. M. R. et al. Chemical treatment of banana tree pseudostem particles aiming the production of particleboards. Ciência e Agrotecnologia, Lavras, v. 38, n. 1, p. 43-49, Jan./Feb. 2014.http://repositorio.ufla.br/jspui/handle/1/37992Ciência e Agrotecnologiareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessGuimarães, Bárbara Maria RibeiroMendes, Lourival MarinTonoli, Gustavo Henrique DenzinBufalino, LinaMendes, Rafael FarinassiGuimarães Junior, José Beneditoeng2019-12-04T17:52:24Zoai:localhost:1/37992Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-12-04T17:52:24Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Chemical treatment of banana tree pseudostem particles aiming the production of particleboards Tratamento químico de partículas de pseudocaule de bananeira visando à produção de painéis aglomerados |
title |
Chemical treatment of banana tree pseudostem particles aiming the production of particleboards |
spellingShingle |
Chemical treatment of banana tree pseudostem particles aiming the production of particleboards Guimarães, Bárbara Maria Ribeiro Musa sp. Lignocellulosic residues Chemical treatments Resíduos lignocelulósicos Tratamentos químicos |
title_short |
Chemical treatment of banana tree pseudostem particles aiming the production of particleboards |
title_full |
Chemical treatment of banana tree pseudostem particles aiming the production of particleboards |
title_fullStr |
Chemical treatment of banana tree pseudostem particles aiming the production of particleboards |
title_full_unstemmed |
Chemical treatment of banana tree pseudostem particles aiming the production of particleboards |
title_sort |
Chemical treatment of banana tree pseudostem particles aiming the production of particleboards |
author |
Guimarães, Bárbara Maria Ribeiro |
author_facet |
Guimarães, Bárbara Maria Ribeiro Mendes, Lourival Marin Tonoli, Gustavo Henrique Denzin Bufalino, Lina Mendes, Rafael Farinassi Guimarães Junior, José Benedito |
author_role |
author |
author2 |
Mendes, Lourival Marin Tonoli, Gustavo Henrique Denzin Bufalino, Lina Mendes, Rafael Farinassi Guimarães Junior, José Benedito |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Guimarães, Bárbara Maria Ribeiro Mendes, Lourival Marin Tonoli, Gustavo Henrique Denzin Bufalino, Lina Mendes, Rafael Farinassi Guimarães Junior, José Benedito |
dc.subject.por.fl_str_mv |
Musa sp. Lignocellulosic residues Chemical treatments Resíduos lignocelulósicos Tratamentos químicos |
topic |
Musa sp. Lignocellulosic residues Chemical treatments Resíduos lignocelulósicos Tratamentos químicos |
description |
Brazil is one of the major banana producers in the world, and consequently generates a great amount of residues from this crop, which could be utilized in particleboard production. The present work aimed to evaluate the effect of different chemical treatments of the particles of Musa sp. pseudostem, on their chemical and physical properties (basic density), and on the physical and mechanical properties of the particleboards produced with the same material. Five treatments were applied to the particles: 1) without treatment (control); 2) 2% acetic acid; 3) 0.5% NaOH; 4) acetone (1/1 in volume/volume); and 5) water. Panels with medium density were produced (0.70 g/cm3 ), bonded with 12% (in relation to the particle mass) of urea–formaldehyde adhesive. The pressing cycle was conducted at 160° C, under 4 MPa, during 8 min. The results obtained indicated that the chemical treatments performed in the particles of banana tree pseudostem affected their chemical composition. The basic density of the particles was 0.10 g/cm³, and only the NaOH treatment led to its increase for values around 0.13 g/cm³. The panels produced with particles without treatment (control) and particles treated with acetic acid presented the lowest values of water absorption and thickness swelling after 2 and 24 h of immersion. Mechanical properties of all the panels produced were below the minimum recommended by the standard CS 236-66 (Commercial Standard - CS, 1968). |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 2019-12-04T17:51:52Z 2019-12-04T17:51:52Z |
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 |
GUIMARÃES, B. M. R. et al. Chemical treatment of banana tree pseudostem particles aiming the production of particleboards. Ciência e Agrotecnologia, Lavras, v. 38, n. 1, p. 43-49, Jan./Feb. 2014. http://repositorio.ufla.br/jspui/handle/1/37992 |
identifier_str_mv |
GUIMARÃES, B. M. R. et al. Chemical treatment of banana tree pseudostem particles aiming the production of particleboards. Ciência e Agrotecnologia, Lavras, v. 38, n. 1, p. 43-49, Jan./Feb. 2014. |
url |
http://repositorio.ufla.br/jspui/handle/1/37992 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Lavras |
publisher.none.fl_str_mv |
Universidade Federal de Lavras |
dc.source.none.fl_str_mv |
Ciência e Agrotecnologia reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1807835112075689984 |