EVALUATION OF PHYSICAL AND MECHANICAL PROPERTIES OF RICE HUSK PANELS GLUED WITH TANNIN-FORMALDEHYDE
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/28674 |
Resumo: | Rice husk, waste produced by processing of rice, has become a problem of environmental, economic and public health. As a result, this research aims to explore the potential of these underutilized resources in Brazil in the development of particleboard glued with tannin-formaldehyde. Therefore, panels were manufactured with rice husk compacted at different density (0.65, 0.95 and 1.15 g/ cm³), levels of adhesives (7, 10 and 13%) and particles types (natural and processed), totaling 54 panels. The pressing was carried in hydraulic press at 30 kgf /cm² for 8 minutes at 180°C of temperature. The physical tests performed were moisture content, density, water absorption and thickness swelling while mechanical properties evaluated were static bending, screw withdrawal and internal bond. In general, the use of rice hulls prouced a reduction in strength when compared to those made with wood particles. All particleboard were below the minimum standards in physical and mechanical properties; only the panels with 13% resin provided minimum values required by market standards regarding dimensional stability. The results indicate that the material cannot be used in conditions requiring great structural efforts. |
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EVALUATION OF PHYSICAL AND MECHANICAL PROPERTIES OF RICE HUSK PANELS GLUED WITH TANNIN-FORMALDEHYDEAVALIAÇÃO DAS PROPRIEDADES FÍSICO-MECÂNICAS DE PAINÉIS DE CASCA DE ARROZ E ADESIVO TANINO-FORMALDEÍDOrice hulls processingwastePhysical-mechanical propertiesdimensional stability.beneficiamento do arrozresíduospropriedades físico-mecânicasestabilidade dimensional.Rice husk, waste produced by processing of rice, has become a problem of environmental, economic and public health. As a result, this research aims to explore the potential of these underutilized resources in Brazil in the development of particleboard glued with tannin-formaldehyde. Therefore, panels were manufactured with rice husk compacted at different density (0.65, 0.95 and 1.15 g/ cm³), levels of adhesives (7, 10 and 13%) and particles types (natural and processed), totaling 54 panels. The pressing was carried in hydraulic press at 30 kgf /cm² for 8 minutes at 180°C of temperature. The physical tests performed were moisture content, density, water absorption and thickness swelling while mechanical properties evaluated were static bending, screw withdrawal and internal bond. In general, the use of rice hulls prouced a reduction in strength when compared to those made with wood particles. All particleboard were below the minimum standards in physical and mechanical properties; only the panels with 13% resin provided minimum values required by market standards regarding dimensional stability. The results indicate that the material cannot be used in conditions requiring great structural efforts.A presente investigação tem como objetivo avaliar o uso da casca de arroz para a fabricação de chapas aglomeradas, coladas com tanino-formaldeído. Para tanto, foram utilizadas cascas de arroz na forma natural ou processadas em moinho de martelo, compactadas a diferentes massas específicas (0,65, 0,95 e 1,15 g/cm³) e aplicando-se teores de adesivos de 7, 10 e 13% (com base no peso seco das partículas), totalizando 54 chapas. A prensagem foi realizada em prensa hidráulica a 30 kgf/cm², por 8 minutos, a uma temperatura de 180°C. Os ensaios físicos realizados foram teor de umidade, massa específica, absorção d’água e inchamento em espessura; e mecânicos, tais como flexão estática, arrancamento de parafuso e ligação interna. De modo geral, a utilização da casca de arroz proporcionou uma redução na resistência física e mecânica das chapas, em relação às produzidas com partículas de madeira encontradas na literatura. Todos os tratamentos ficaram abaixo dos valores mínimos requeridos pelas normas de comercialização para os ensaios físicos e mecânicos, somente os de 13% de adesivo apresentaram requisitos satisfatórios quanto à estabilidade dimensional. Os resultados indicam que o material não pode ser utilizado em condições que exijam grandes esforços estruturais.Universidade Federal de Santa Maria2017-08-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/2867410.5902/1980509828674Ciência Florestal; Vol. 27 No. 3 (2017); 1003-1015Ciência Florestal; v. 27 n. 3 (2017); 1003-10151980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/28674/16186Copyright (c) 2017 Ciência Florestalinfo:eu-repo/semantics/openAccessSouza, Joel Telles deMenezes, Walmir Marques deHaselein, Clovis RobertoBaldin, TalitaAzambuja, Rafael da RosaMorais, Weslley Wilker Corrêa2017-08-31T18:33:12Zoai:ojs.pkp.sfu.ca:article/28674Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2017-08-31T18:33:12Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
EVALUATION OF PHYSICAL AND MECHANICAL PROPERTIES OF RICE HUSK PANELS GLUED WITH TANNIN-FORMALDEHYDE AVALIAÇÃO DAS PROPRIEDADES FÍSICO-MECÂNICAS DE PAINÉIS DE CASCA DE ARROZ E ADESIVO TANINO-FORMALDEÍDO |
title |
EVALUATION OF PHYSICAL AND MECHANICAL PROPERTIES OF RICE HUSK PANELS GLUED WITH TANNIN-FORMALDEHYDE |
spellingShingle |
EVALUATION OF PHYSICAL AND MECHANICAL PROPERTIES OF RICE HUSK PANELS GLUED WITH TANNIN-FORMALDEHYDE Souza, Joel Telles de rice hulls processing waste Physical-mechanical properties dimensional stability. beneficiamento do arroz resíduos propriedades físico-mecânicas estabilidade dimensional. |
title_short |
EVALUATION OF PHYSICAL AND MECHANICAL PROPERTIES OF RICE HUSK PANELS GLUED WITH TANNIN-FORMALDEHYDE |
title_full |
EVALUATION OF PHYSICAL AND MECHANICAL PROPERTIES OF RICE HUSK PANELS GLUED WITH TANNIN-FORMALDEHYDE |
title_fullStr |
EVALUATION OF PHYSICAL AND MECHANICAL PROPERTIES OF RICE HUSK PANELS GLUED WITH TANNIN-FORMALDEHYDE |
title_full_unstemmed |
EVALUATION OF PHYSICAL AND MECHANICAL PROPERTIES OF RICE HUSK PANELS GLUED WITH TANNIN-FORMALDEHYDE |
title_sort |
EVALUATION OF PHYSICAL AND MECHANICAL PROPERTIES OF RICE HUSK PANELS GLUED WITH TANNIN-FORMALDEHYDE |
author |
Souza, Joel Telles de |
author_facet |
Souza, Joel Telles de Menezes, Walmir Marques de Haselein, Clovis Roberto Baldin, Talita Azambuja, Rafael da Rosa Morais, Weslley Wilker Corrêa |
author_role |
author |
author2 |
Menezes, Walmir Marques de Haselein, Clovis Roberto Baldin, Talita Azambuja, Rafael da Rosa Morais, Weslley Wilker Corrêa |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Souza, Joel Telles de Menezes, Walmir Marques de Haselein, Clovis Roberto Baldin, Talita Azambuja, Rafael da Rosa Morais, Weslley Wilker Corrêa |
dc.subject.por.fl_str_mv |
rice hulls processing waste Physical-mechanical properties dimensional stability. beneficiamento do arroz resíduos propriedades físico-mecânicas estabilidade dimensional. |
topic |
rice hulls processing waste Physical-mechanical properties dimensional stability. beneficiamento do arroz resíduos propriedades físico-mecânicas estabilidade dimensional. |
description |
Rice husk, waste produced by processing of rice, has become a problem of environmental, economic and public health. As a result, this research aims to explore the potential of these underutilized resources in Brazil in the development of particleboard glued with tannin-formaldehyde. Therefore, panels were manufactured with rice husk compacted at different density (0.65, 0.95 and 1.15 g/ cm³), levels of adhesives (7, 10 and 13%) and particles types (natural and processed), totaling 54 panels. The pressing was carried in hydraulic press at 30 kgf /cm² for 8 minutes at 180°C of temperature. The physical tests performed were moisture content, density, water absorption and thickness swelling while mechanical properties evaluated were static bending, screw withdrawal and internal bond. In general, the use of rice hulls prouced a reduction in strength when compared to those made with wood particles. All particleboard were below the minimum standards in physical and mechanical properties; only the panels with 13% resin provided minimum values required by market standards regarding dimensional stability. The results indicate that the material cannot be used in conditions requiring great structural efforts. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-08-31 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/28674 10.5902/1980509828674 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/28674 |
identifier_str_mv |
10.5902/1980509828674 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/28674/16186 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 Ciência Florestal info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 Ciência Florestal |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Florestal; Vol. 27 No. 3 (2017); 1003-1015 Ciência Florestal; v. 27 n. 3 (2017); 1003-1015 1980-5098 0103-9954 reponame:Ciência Florestal (Online) instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Florestal (Online) |
collection |
Ciência Florestal (Online) |
repository.name.fl_str_mv |
Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br |
_version_ |
1799944132507992064 |