Use of coffee plant stem in the production of conventional particleboards

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorCésar, Antônia Amanda da Silva-
Autor(es): dc.creatorBufalino, Lina-
Autor(es): dc.creatorMacedo, Laurenn Borges de-
Autor(es): dc.creatorMesquita, Ricardo Gabriel de Almeida-
Autor(es): dc.creatorProtásio, Thiago de Paula-
Autor(es): dc.creatorMendes, Lourival Marin-
Data de aceite: dc.date.accessioned2026-02-09T12:10:13Z-
Data de disponibilização: dc.date.available2026-02-09T12:10:13Z-
Data de envio: dc.date.issued2020-07-08-
Data de envio: dc.date.issued2020-07-08-
Data de envio: dc.date.issued2014-03-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/41750-
Fonte completa do material: dc.identifierhttps://doi.org/10.4028/www.scientific.net/KEM.600.703-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1155823-
Descrição: dc.descriptionWhen the productivity of a coffee plantation drops considerably, the crop must be renewed. In this case, the removed plants become residues to be discarded. This work aimed to verify the utilization of the coffee plant stem in the production of conventional particleboards. The basic density and chemical composition of the coffee stem was obtained. 3 particleboards were produced with urea-formaldehyde at 6% and paraffin at 1%. The target density of the panels was 0.600 g/cm3. The pressing cycle used was: pressure of 0.32 MPa, temperature of 160°C and time of 8 minutes. Apparent density (AD), water absorption (WA), thickness swelling (TS) after 2 and 24 hours immersion and thickness non-return rate (TNRR) were the physical properties obtained. Mechanical properties evaluated were parallel compression (CP), static bending (MOE and MOR) and internal bonding (IB). The average basic density, total extractive, lignin, mineral components and holocelluloses contents obtained were 0.581gcm-3, 11%, 28%, 2% and 59%, respectively. The average values of the physical and mechanical properties of the boards, followed by their standard deviation were: AD= 0.577 gcm-3 (0.018); CR = 1.03 (0.12); WA_2h = 55% (2.3); WA_24r = 76% (2.5); TS_2h = 32% (4.4); TS_24h = 59% (7.8); TNRR = 62 % (2.0); IB = 0.43 MPa (0.03); CP = 4.9 MPa (0.23); MOE = 1324.4 MPa (1.02); and MOR = 13.4 MPa (1.02). Coffee stem conventional particleboards presented poor physical resistance. On the other hand, they may be commercialized for general uses in dry-conditions.-
Idioma: dc.languageen-
Publicador: dc.publisherTrans Tech Publications Ltd.-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceKey Engineering Materials-
Palavras-chave: dc.subjectAgricultural residues-
Palavras-chave: dc.subjectCoffea arabica L.-
Palavras-chave: dc.subjectResistance properties-
Palavras-chave: dc.subjectAglomerados convencionais-
Palavras-chave: dc.subjectResíduos agrícolas-
Palavras-chave: dc.subjectCafé - Propriedades de resistência-
Título: dc.titleUse of coffee plant stem in the production of conventional particleboards-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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