Painéis de pínus e bagaço de cana empregando-se dois adesivos para uso na construção civil

Buzo, Ana Laura Soler Cunha; Sugahara, Estéfani Suana; Silva, Sérgio Augusto de Mello da; Morales, Elen Aparecida Martines; Azambuja, Maximiliano dos Anjos

doi:10.1590/s1678-86212019000400350

Cited by 13 publications

(6 citation statements)

References 18 publications

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“…Regarding the moisture content, it is noted that the composites manufactured by hot pressing showed higher values than the studies carried out by Buzo et al [28] and Santos et al [29]. However, it is observed that the five treatments (T1, T2, T5, T6, T7) proposed in this study meet the minimum requirements described by the ABNT 14810-1 [30] standard, which presents an acceptance range between 5% and 13%.…”

Section: Resultscontrasting

confidence: 52%

Evaluation of Hot Pressing Processing by Physical Properties of Ecofriendly Composites Reinforced by Eucalyptus Sawdust and Chamotte Residues

et al. 2023

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The particleboard industry consumes large amounts of raw material, and this type of product consumption has been increasing over the last few years. The research for alternative raw materials becomes interesting, since most of the resources come from planted forests. In addition, the investigation of new raw materials must take into account environmentally correct solutions, such as the use of alternative natural fibers, use of agro-industrial residues, and resins of vegetable origin. The objective of this study was to evaluate the physical properties of panels manufactured by hot pressing using eucalyptus sawdust, chamotte, and polyurethane resin based on castor oil as raw materials. Eight formulations were designed with variations of 0, 5, 10, and 15% of chamotte, and two variations of resin with 10% and 15% of volumetric fraction. Tests of gravimetric density, X-ray densitometry, moisture content, water absorption, thickness swelling, and scanning electron microscopy were carried out. Through the results it can be noticed that the incorporation of chamotte in the manufacture of the panels increased the water absorption and the swelling in thickness, around 100% and the use of 15% of resin decreased, more than 50%, the values of these properties. X-ray densitometry analyzes showed that the addition of chamotte alters the density profile of the panel. In addition, the panels manufactured with 15% resin were classified as P7, the most demanding type on EN 312:2010 standard.

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Section: Resultscontrasting

confidence: 52%

Evaluation of Hot Pressing Processing by Physical Properties of Ecofriendly Composites Reinforced by Eucalyptus Sawdust and Chamotte Residues

et al. 2023

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“…No Brasil, para a produção do MDP são utilizadas principalmente madeiras provenientes de florestas plantadas dos gêneros Pinus e Eucalyptus, contudo, a utilização de outros materiais lignocelulósicos pode proporcionar a diminuição de custos sem deixar as atender os requisitos de qualidade. Na literatura, foram citados vários tipos de materiais alternativos com potencial para produção de MDP, dentre os quais: bagaço de cana (BUZO et al, 2019); casca de arroz (SOUZA et al, 2017), casca de amendoim (BARBIRATO, et al, 2014;CRAVO et al, 2015), casca de coco-verde (CRAVO et al, 2015), fibras de bananeira (GUIMARÃES, 2012), resíduos de erva-mate (DE SOUZA et al, 2019) e bambu (BELINI, et al, 2014;ALMEIDA et al, 2008;MELO et al, 2015).…”

Section: Resultsunclassified

Produção De Painéis MDP Com Diferentes Tipos De Partículas Lignocelulosicas

Mustefaga¹,

Rusch²,

Hillig³

2021

Empreendedorismo E Inovação Na Engenharia Florestal 3

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Direitos para esta edição cedidos à Atena Editora pelos autores. Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0).O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais. Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação com base em critérios de neutralidade e imparcialidade acadêmica.A Atena Editora é comprometida em garantir a integridade editorial em todas as etapas do processo de publicação, evitando plágio, dados ou resultados fraudulentos e impedindo que interesses financeiros comprometam os padrões éticos da publicação. Situações suspeitas de má conduta científica serão investigadas sob o mais alto padrão de rigor acadêmico e ético.

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“…In the works by Buzo et al [39] and Sugahara et al [40], lower thickness swelling values were also found for particle boards made of PU compared to formaldehyde-based resins. It is also observed that the mean values of swelling in thickness, obtained for all treatments of the present study, are a little below the mean value (7.75%) found in the literature for plywood of Pinus taeda [33].…”

Section: Thickness Swellingmentioning

confidence: 88%

Comparative Study of Plywood Boards Produced with Castor Oil-Based Polyurethane and Phenol-Formaldehyde Using Pinus taeda L. Veneers Treated with Chromated Copper Arsenate

Sugahara

Casagrande

Arroyo

et al. 2022

Forests

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Plywood is widely used in civil construction. Due to the importance of preservation and gluing in bio-composites, this study compares the influence of a chemical treatment with CCA (chromated-copper-arsenate) on Pinus taeda L. wood veneers to produce two plywood types using phenol-formaldehyde (PF) and castor oil-based polyurethane (PU). Four different treatments were performed to analyze both varieties’ physical and mechanical properties. As a result, an improvement in the properties of the treated panels was observed. Lower moisture contents and better interactions caused by less thickness swelling and water absorption were identified in the PU-based plywoods. The treatment with CCA was efficient, improving these properties when they were compared to the reference panels. Most treatments evidenced increases in the modulus of elasticity and modulus of rupture for both adhesives when the CCA treatment was applied to the veneers. Comparing the resins, the PF showed the best values of modulus of elasticity. All treatments met the requirements defined by the Brazilian standard document for the glue line shear.

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Painéis de pínus e bagaço de cana empregando-se dois adesivos para uso na construção civil

Cited by 13 publications

References 18 publications

Evaluation of Hot Pressing Processing by Physical Properties of Ecofriendly Composites Reinforced by Eucalyptus Sawdust and Chamotte Residues

Evaluation of Hot Pressing Processing by Physical Properties of Ecofriendly Composites Reinforced by Eucalyptus Sawdust and Chamotte Residues

Produção De Painéis MDP Com Diferentes Tipos De Partículas Lignocelulosicas

Comparative Study of Plywood Boards Produced with Castor Oil-Based Polyurethane and Phenol-Formaldehyde Using Pinus taeda L. Veneers Treated with Chromated Copper Arsenate

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