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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Assessment of multilayer particleboards produced with green coconut and sugarcane bagasse fibers

Texto completo
Autor(es):
Fiorelli, Juliano [1] ; Bueno, Stephen Bonilla [2] ; Cabral, Matheus Roberto [2]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Sao Paulo FZEA USP, Fac Anim Sci & Food Engn, Dept Biosyst Engn, Sao Paulo - Brazil
[2] Univ Sao Paulo FZEA USP, Fac Anim Sci & Food Engn, Grad Program Mat Sci & Engn, Sao Paulo - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: CONSTRUCTION AND BUILDING MATERIALS; v. 205, p. 1-9, APR 30 2019.
Citações Web of Science: 2
Resumo

The use of alternative raw materials to produce particleboards become an interesting strategy to replace wood and dampen the deforestation that have created environmental issues. Thus, this paper aims to assess the physical, mechanical, thermal and aging properties of multilayer particleboards produced with green coconut and sugarcane bagasse fibers. The particleboards were produced with two different densities (500 and 700 kg/m(3)) consisting of 3 layers: two outer layers (OL) of sugarcane bagasse fiber and one inner layer (IL) of green coconut fiber bonded with castor oil polyurethane resin (PU-resin). The physical, mechanical, thermal and accelerated aging properties of the particleboards were measured by advance equipment. The X-ray densitometry identified variations in the density profile across the thickness of the particleboards. Regarding the assessed mechanical properties, the particleboards produced with a density of 500 kg/m(3) (T1) meet all the ANSI A208.1-1999 requirements for LD-1 particleboards. On the other hand, the particleboards produced with a density of 700 kg/m(3) (T2) only meet ANSI A208.1-1999 requirements for M-2 particleboards. The results of the fatigue tests indicated that all the particleboards assessed were able to survive a fatigue life of 40.000 cycles at stress levels equal to 25% of the breaking load. Accelerated aging assessment shown that this test caused degradation of the particleboards and indicated that the exposure conditions (temperature, humidity, UVA and UVB) caused permanent damage to the physical properties of WA and TS as well as the mechanical properties. (C) 2019 Elsevier Ltd. All rights reserved. (AU)

Processo FAPESP: 12/51467-3 - Agroindustrial wastes and their potential use as appropriate materials for housing and infraestructure (Agrowaste)
Beneficiário:Holmer Savastano Junior
Linha de fomento: Auxílio à Pesquisa - Temático
Processo FAPESP: 13/10798-0 - Chapas de partículas multicamadas com resíduos lignocelulósicos e resina PU de mamona
Beneficiário:Stephen Bonilla Bueno
Linha de fomento: Bolsas no Brasil - Mestrado
Processo FAPESP: 12/13881-2 - Chapas de partículas em multicamadas com resíduo lignocelulósico e reforço localizado de fibras vegetais
Beneficiário:Juliano Fiorelli
Linha de fomento: Auxílio à Pesquisa - Regular