2019
DOI: 10.1590/s1678-86212019000100291
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Caracterização de painéis de partículas de média densidade feitos com resina poliuretana monocomponente à base de mamona

Abstract: Resumo Dentre os fatores envolvidos na fabricação dos painéis destaca-se o tipo adesivo, em que o uso de novos pode resultar em boas propriedades aos materiais fabricados. Nesse contexto, esta pesquisa objetivou avaliar propriedades físicas e mecânicas de painéis de partículas fabricados com madeiras de Pinus sp. e de Eucalyptus grandis e unidas com resina poliuretana monocomponente derivada do óleo de mamona, cujo desenvolvimento desse adesivo vem sendo sistematicamente aperfeiçoado por diversos fabricantes. … Show more

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Cited by 8 publications
(5 citation statements)
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“…The particleboards were made from industrial sawmill waste from Cariniana micrantha (Tauari), Goupia glabra (Cupiúba), Vochysia guianensis (Cambará), Tabebuia Alba (Ipê), and Apuleialei ocarpa (Garapa) wood species with moisture content of 11%, and sugarcane bagasse, which was collected from sugar and alcohol plants from the region of São José do Rio Preto, São Paulo, Brazil. The value of moisture content is close to what is disclosed in the literature for Pinus and Eucalyptus particles and PU resin (Varanda et al 2013;Shirosaki et al 2018). Moreover, this moisture value does not demand any further drying process, saving energy in the manufacture process.…”
Section: Methodssupporting
confidence: 84%
“…The particleboards were made from industrial sawmill waste from Cariniana micrantha (Tauari), Goupia glabra (Cupiúba), Vochysia guianensis (Cambará), Tabebuia Alba (Ipê), and Apuleialei ocarpa (Garapa) wood species with moisture content of 11%, and sugarcane bagasse, which was collected from sugar and alcohol plants from the region of São José do Rio Preto, São Paulo, Brazil. The value of moisture content is close to what is disclosed in the literature for Pinus and Eucalyptus particles and PU resin (Varanda et al 2013;Shirosaki et al 2018). Moreover, this moisture value does not demand any further drying process, saving energy in the manufacture process.…”
Section: Methodssupporting
confidence: 84%
“…OSSB was produced in laboratory scale according to the method described by Bach, Domier and Holowach (1999) and Shirosaki et al (2019). SbS was manually split along its main axis to expose its inner regions, and then was dried in a laboratory oven at 103 ºC for 24 h before the production of the boards.…”
Section: Ossb Production Processmentioning
confidence: 99%
“…Polyurethane is another type of formaldehyde-free adhesive (polyurethane based) that has a wide range of applications in industry (TANG et al, 2008). This binder has been substantially investigated as a replacement of conventional adhesives in wood-based and other lignocellulosic composites (MERLINI;SOLDI;BARRA, 2011;FIORELLI et al, 2012FIORELLI et al, , 2013BERTOLINI et al, 2013;VALARELLI et al, 2014;CHEN;TAI, 2018;NASCIMENTO et al, 2018;VARANDA et al, 2018;FERRO et al, 2019;MACEDO et al, 2019;SHIROSAKI et al, 2019). The use of castor oil polyurethane adhesive in the composition SbS OSSB in this paper is justified due the abundance of the Ricinus communis L. plant in Brazil, whose seeds are used for the production of the resin (CANGEMI et al, 2006).…”
Section: Introductionmentioning
confidence: 99%
“…As madeiras utilizadas para confecção de painéis para uso comercial são as espécies do gênero Pinus spp.e Eucalyptus spp., as quais são espécies de produção em larga escala e ditas "madeiras de reflorestamento" [25,26]. Dentre estas, destaca-se a espécie Eucalyptus saligna, espécie de reflorestamento, com possibilidade de uso em fins estruturais, classificada na classe C30 das espécies folhosas, possibilitando seu uso em painéis de madeira [27][28][29][30][31].…”
Section: Introductionunclassified