Abstract
Wood engineered products are alternatives to the use of timber for civil construction, manufacturing, and the furniture industry. One of these products is the medium density particleboard (MDP) panel, which is made of wood particles and resin under high temperature and pressure. This research produced a prototype to evaluate the use of MDP panels waterproofed by castor oil-based polyurethane resin and Pinus sp. residues treated with CCB preservative for use as a wall coating. The influence of weathering, position of wood panel, and waterproof treatment were evaluated. Panels were made under the requisites of Brazilian Standard ABNT NBR 14810 (2013) and evaluated with international standards. MDP panels met standard requisites, with properties similar to that reported in the literature, indicating the possibility of use as wall coating. Statistical analysis indicated the only significant factor was weathering, which influenced physical and mechanical properties.
Highlights
Brazil has the largest number of wood species across the globe, with 8,715 wood species in its territory
The reforestation area of Brazil is composed of Pinus sp. and Eucalyptus wood species, with
7.84 million hectares in Brazil mainly used for paper and pulp production, furniture, and wood engineered products (Indústria Brasileira de Árvores - IBÁ 2017)
Summary
Brazil has the largest number of wood species across the globe, with 8,715 wood species in its territory. The use of wood engineered products has increased and is considered an alternative to the use of timber for civil construction Among these products are the oriented strand board (OSB), plywood, medium density fiberboard (MDF), and medium density particleboard (MDP) (Dias and Lahr 2004; Akgül et al 2017; Souza et al 2018; Way et al 2018; Bertolini et al 2019b). Such wood products are produced with waste due to the timber manufacturing process. The resin was made by Kehl Ind., São Carlos, São Paulo, Brazil and the Osmocolor® varnish was produced by Montana Quimica Co, São Paulo, Brazil
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