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

Autor(es)

Fiorelli, Juliano ^[1] ; Bueno, Stephen Bonilla ^[2] ; Cabral, Matheus Roberto ^[2]

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

• 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: 13/10798-0 - Chapas de partículas multicamadas com resíduos lignocelulósicos e resina pu de mamona
• Beneficiário: Stephen Bonilla Bueno
• Modalidade de apoio: 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
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 12/51467-3 - Agroindustrial wastes and their potential use as appropriate materials for housing and infraestructure (Agrowaste)
• Beneficiário: Holmer Savastano Junior
• Modalidade de apoio: Auxílio à Pesquisa - Temático