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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Optimization of castor oil polyurethane resin content of OSB panel made of Dendrocalamus asper bamboo

Full text
Author(s):
Guilherme Henrique Ament Barbirato [1] ; Christian Gauss [2] ; Wanley Eduardo Lopes Junior [3] ; Rômulo Martins [4] ; Juliano Fiorelli [5]
Total Authors: 5
Affiliation:
[1] University of São Paulo - Brasil
[2] University of São Paulo - Brasil
[3] University of São Paulo - Brasil
[4] University of São Paulo - Brasil
[5] University of São Paulo - Brasil
Total Affiliations: 5
Document type: Journal article
Source: Ciênc. Florest.; v. 32, n. 1, p. 187-205, 2022-06-17.
Abstract

ABSTRACT This work presents a study of the optimization of castor oil polyurethane (PU) resin content for the production of Oriented Strand Boards (OSB) using bamboo (Dendrocalamus asper). For this study, medium-density (650 kg/m3) OSB panels were produced with different resin contents (8%, 10%, 12%, and 15%). The bamboo particles were characterized through physical, chemical and anatomical analyses, identifying the potential of this product as a raw material for OSB panels. Subsequently, the physical and mechanical properties of OSB panels were evaluated. The results indicated that bamboo and castor oil PU are suitable for the production of OSB panels, and all the conditions met the minimum requirements of the European standard EN 300 (2002), for OSB type 1. In particular, the best overall properties were obtained by the panels with a resin content of 12%, achieving the minimum requirements for applications as a structural panel (type 4), opening new opportunities for formaldehyde-free engineered bamboo materials for the built environment. (AU)

FAPESP's process: 17/18076-4 - Flat and trapezoidal/corrugated OSB particle board of residual forest biomass: numerical and experimental analyses
Grantee:Juliano Fiorelli
Support Opportunities: Regular Research Grants
FAPESP's process: 16/26022-9 - Preservative treatment and chemical modification of bamboo for structural purposes
Grantee:Christian Gauss
Support Opportunities: Scholarships in Brazil - Doctorate