Particulate composite based on coconut fiber and castor oil polyurethane adhesive: An eco-efficient product

Fiorelli, Juliano; Curtolo, Diego Donizetti; Barrero, Nubia Garzón; Savastano, Holmer; Pallone, Elíria Maria de Jesus Agnolon; Johnson, Ryan

doi:10.1016/j.indcrop.2012.02.033

Cited by 114 publications

(94 citation statements)

References 2 publications

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“…These values fall below the preestablished nominal density of 1000 kg/m 3 , but are higher than those reported by Dias and Lahr 26 and similar to those obtained by Fiorelli et al 31 , Bertolini et al 33 , Silva et al 35,36 , and Sartori et al 38 , who studied particleboards made of bi- 40 . On the other hand, the difference between nominal and average density of particleboards has already been reported by other authors 41,42 , and has been attributed to the loss of raw material (wood particles and resin) during the manual mixing and pressing process.…”

Section: Physical Characterization Of the Particleboardssupporting

confidence: 77%

“…The use of coconut fiber as raw material to produce particleboards, using COPR adhesive and urea-formaldehyde (UF) with two different densities (0.8 g/cm 3 and 1.0 g/cm 3 ), was investigated by Fiorelli et al 31 Their results indicated a decrease in TS and an increase in MOR of coconut fiber panels with polyurethane resin when compared to those of coconut fiber panels manufactured with urea-formaldehyde resin. These observations were explained based on scanning electron microscopy (SEM) micrographs, which indicated that castor oil-based polyurethane adhesive occupies the gaps between the particles, thus contributing to improve the physical and mechanical properties of the panels.…”

Section: Dias and Lahrmentioning

confidence: 99%

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Particleboard manufactured from Tauari (Couratari oblongifolia) wood waste using castor oil based polyurethane resin

et al. 2014

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Several wood species from the Amazon region are used in the manufacture of furniture, which leaves behind large amounts of waste (slabs, sawdust, sanding dust and bark), thus causing serious environmental impacts. An interesting alternative for the use of these wastes is the manufacture of particleboards. However, few studies have focused on the behavior of Amazonian tree species and the wastes resulting from production with this type of material. This paper discusses the potential use of Tauari (Couratari oblongifolia) wood waste as a raw material for the production of particleboards, using castor oil-based bi-component polyurethane adhesive. Experimental boards were prepared with dry wood particles and a castor-oil polyurethane adhesive content of 16%. The boards, whose nominal density was 1000 kg⋅m , with higher IB and TS than those specified by the NBR 14810-2 and ANSI A208.1 standards, enabling this product to be classified as high-density particleboard suitable for industrial and commercial use.

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Section: Physical Characterization Of the Particleboardssupporting

confidence: 77%

Section: Dias and Lahrmentioning

confidence: 99%

Particleboard manufactured from Tauari (Couratari oblongifolia) wood waste using castor oil based polyurethane resin

et al. 2014

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“…Changes in pressing time aimed gains with lower production periods. Furthermore, adhesive proportions were based on related works, also employing a castor oil based PU resin, like Fiorelli et al 20 , Rodrigues 21 and Campos 14 . Combining these factors, eight treatments are obtained.…”

Section: Panels Productionmentioning

confidence: 99%

Accelerated artificial aging of particleboards from residues of CCB treated Pinus sp. and castor oil resin

et al. 2013

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Tests simulating exposure to severe weather conditions have been relevant in seeking new applications for particleboard. This study aimed to produce particleboards with residues of CCB (chromium-copper-boron oxides) impregnated Pinus sp. and castor oil-based polyurethane resin, and to evaluate their performance before and after artificial accelerated aging. Panels were produced with different particle mass, resin content and pressing time, resulting eight treatments. Particles moisture and size distribution were determined, beyond panel physical and mechanical properties, according to NBR14810-3: 2006. After characterization, treatments B and G (small adhesive consumption and better mechanical performance, respectively) were chosen to artificial aging tests. Statistical results analysis showed best performances were achieved for waterproof aged samples, of both B and G treatments. As example, in treatment B, MOR and MOE values were 23 MPa and 2,297 MPa, samples before exposure; 26 MPa and 3,185 MPa, 32 MPa and 3,982 MPa for samples after exposure (non-sealed and sealed), respectively.

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“…Os autores constataram, com base nas propriedades físico-mecânicas, que o capim-annoni é inviável tecnicamente para a produção de painéis aglomerados. Por outro lado, Fiorelli et al (2012) utilizaram a fibra da casca do coco-verde para na produção de painéis aglomerados. Os autores diagnosticaram viabilidade técnica no uso da casca do coco-verde, pois os painéis de casca de cocoverde apresentaram desempenho físico-mecânico acima dos limites mínimos recomendados pelos principais documentos normativos nacionais e internacionais.…”

Section: Introductionunclassified

Painéis aglomerados fabricados com resíduos do coco babaçu

Furtado

Fiorelli

Júnior

et al. 2017

Agraria

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RESUMOA produção de painéis aglomerados no mundo é sustentada pelas espécies de Pinus spp. e Eucalyptus spp. Todavia, o uso de resíduos de epicarpo e endocarpo provenientes do processo de extração da amêndoa do coco babaçu pode ser uma alternativa de matéria prima à baixo custo. Nessa pesquisa, objetivou-se avaliar a viabilidade técnica de utilização destes resíduos na produção de painéis aglomerados. Foram produzidos painéis 100% epicarpo (100EP), 100% endocarpo (100EN) e 50% epicarpo com 50% endocarpo (50EP) aglutinados com resina poliuretana bicomponente à base de óleo de mamona com um teor de 12% em relação ao peso seco das partículas. A avaliação dos painéis produzidos foi realizada com base nos procedimentos das Normas Técnicas NBR 14810-2 (ABNT, 2013) e ANSI A208.1 (ANSI, 2009) com caracterização física (densidade, inchamento em espessura e absorção de água em 2 e 24 h) e mecânica (adesão interna, módulo de elasticidade e módulo de ruptura na flexão estática). Os resultados obtidos nesta pesquisa indicam a inviabilidade técnica de utilização dos resíduos do coco babaçu na produção de painéis aglomerados, pois não atendem os valores mínimos de propriedades físicas exigidos pelos documentos normativos. No entanto, promovem excelente desempenho mecânico, especialmente o epicarpo do coco babaçu. Palavras-chave: insumos alternativos; painéis de madeira; propriedades físico-mecânicas Agglomerated panels made from babaçu coconut residues ABSTRACTThe particleboard manufacturing in the world is sustained by the species Pinus spp. and Eucalyptus spp. However, the use of waste epicarp and endocarp from the extraction process almond coconut babassu can be an alternative raw material at low cost. This research, objective was to assess the technical feasibility of using these residues in the production of particleboard. The panels were produced: 100% epicarp (100EP), 100% endocarp (100EN) and 50% epicarp 50% endocarp (50EP) bonded with polyurethane bi-component resin castor oil base with a 12% content on dry weight the particle. The evaluation of particleboard produced was based on the procedures of NBR Technical Standards 14810-2:2013 and ANSI A208.1:2009 with physical characteristics (density, thickness swelling and water absorption at 2 and 24 h) and mechanical (internal adhesion, modulus of elasticity and modulus of rupture in bending). The results obtained in this research indicate the technical impossibility of using residues of babassu coconut in the production of agglomerated panels, since they do not meet the minimum values of physical properties required by normative documents. However, they promote excellent mechanical performance, especially the babassu coconut epicarp.

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Particulate composite based on coconut fiber and castor oil polyurethane adhesive: An eco-efficient product

Cited by 114 publications

References 2 publications

Particleboard manufactured from Tauari (Couratari oblongifolia) wood waste using castor oil based polyurethane resin

Particleboard manufactured from Tauari (Couratari oblongifolia) wood waste using castor oil based polyurethane resin

Accelerated artificial aging of particleboards from residues of CCB treated Pinus sp. and castor oil resin

Painéis aglomerados fabricados com resíduos do coco babaçu

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