Effect of Wood Moisture Content in Edge Glued Panel Bonding for Furniture Industry: Analysis of Shear-Stress and Rupture in Bondline

Abstract:

The objective of this article was to study the influence of the Pinus taeda wood moisture content to the production of EGP (Edge Glued Panel) in the bonding stage, using PVA adhesive. It was analyzed the joint resistances through shear-stress tests and rupture in the bondline. The wood moisture classes adopted to the panels were: “A” ( [8%, 9%[ ), “B” ( [9%, 10%[ ), “C” ( [10%, 11%[ ), “D” ( [11%, 12%[ ) e “E” ( [12%, 13%[ ). After the panel production, it was sawn the specimens for the resistance shear in the bondline tests by traction. The tests results show that it was statistically significant differences to the values of rupture tensions between A class and B, C, D and E classes. The wood medium rupture presented a tendency to reduce with the moisture increase, and the total rupture in the bondline presented a small tendency of a less number of occurrences with the rupture tension increases.

• Periodical: Advanced Materials Research (Volumes 1025-1026)
• Pages: 227-232
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1025-1026.227
• Online since: September 2014
• Authors: Felipe Assunção de Araújo Ferraresi, Juliana Cortez Barbosa, Cristiane Inácio de Campos, Bruno Santos Ferreira, Victor Almeida de Araujo*, Maristela Gava
• Keywords: EGP, Furniture Industry, PVA Adhesives, Wood Moisture

References

[1] ABIMOVEL – Brazilian Association of Furniture Industries: Panorama of the Furniture Industry 2008-2009, ABIMOVEL, (2011), http: /www. abimovel. com.

[2] ABIMCI – Brazilian Association of Industry of Mechanically Manufactured Wood: Wood Products, ABIMCI, (2004), http: /www. abimci. com. br/pt.

[3] ABIMCI – Brazilian Association of Industry of Mechanically Manufactured Wood: Sector study 2008, ABIMCI, (2008), http: /www. abimci. com. br/pt.

[4] R.C. Frihart and G.C. Hunt: Adhesives with Wood Materials – Bond Formation and Performance, in: Forest Products Laboratory (Ed. ): Wood Handbook – wood as an engineering material, Centennial Edition, Forest Products Laboratory, (2010), 24 p.

DOI: 10.2737/fpl-gtr-113

[5] R.A. Currier: The importance of lumber seasoning in wood gluing, Oregon Forest Research Center, (1961), 4 p. ir. library. oregonstate. edu/dspace/bitstream/1957/4872/1/Importance_Lumber_ocr. pdf.

[6] ASTM – American Society for Testing and Materials: ASTM D 5572 – Standard Specification for Adhesives Used for products not in Ensambladuras of Structural Lumber, (1995), 17 p.

[7] ASTM – American Society for Testing and Materials: ASTM D 5751 – Standard Specification for Adhesives Used in Unions Laminar Products for Nonstructural Lumber, (1991), 11 p.