Academic Journals Database
Disseminating quality controlled scientific knowledge

Alternative castor oil-based polyurethane adhesive used in the production of plywood

Author(s): Dias Fabricio Moura | Lahr Francisco Antonio Rocco

Journal: Materials Research
ISSN 1516-1439

Volume: 7;
Issue: 3;
Start page: 413;
Date: 2004;
Original page

Keywords: plywood | polyurethane adhesive based on castor oil | properties

Plywood is normally produced with urea-formaldehyde and/or phenol-formaldehyde adhesives. However, the former is considerably toxic and environmentally damaging, while the latter is expensive, thus motivating the search for alternative raw materials in plywood production. The castor oil-based polyurethane adhesive developed at the São Carlos Institute of Chemistry, University of São Paulo, is an environmentally friendly vegetal oil-based polymer that is harmless to humans. The wood species Eucalyptus grandis offers favorable properties for plywood the manufacture. The study reported on here involved the use of castor oil-based polyurethane adhesive to produce plywood with Eucalyptus grandis layers. The plywood's performance was evaluated based on the results of physical and mechanical tests recommended by the Brazilian code, ABNT. Tests results showed higher values than those reported in the literature and recommended by the ABNT, indicating that the castor oil-based polyurethane adhesive is a promising glue for the manufacture of plywood.

Tango Jona
Tangokurs Rapperswil-Jona

RPA Switzerland

Robotic Process Automation Switzerland