Determination of Physical and Mechanical Properties of Finishing Papers Used for Wood-Based Composite Products
Keywords:
Finishing papers, physicomechanical properties, engineered wood products, hygromechanical behaviorAbstract
There has been a noticeable trend in the furniture and flooring industries in using finishing products (decorative paper, foil, wood veneer, and so on) of different quality on both surfaces of raw engineered wood-based panels. Under variable temperature and RH conditions, this practice can result in dimensional instability. The objective of this study was to determine the key properties of five finishing papers affecting the hygromechanical behavior of wood-based composite panels. The diffusion coefficients, swelling properties, and tensile modulus of elasticity (MOE) of the finishing papers were determined. The results show that the finishing papers studied are anisotropic in terms of their physicomechanical properties. For papers impregnated with melamine-formaldehyde resin, the tensile MOE decreases with an increase in resin content. Swelling is the most significant dimensional change. The range of variation of the linear expansion coefficients is between 0.03 and 0.17 in the fiber direction and between 0.08 and 0.28 in the transverse direction for raw papers. The linear contraction coefficients vary between 0.05 and 0.31 in the fiber direction and between 0.07 and 0.28 in the transverse direction. The behavior is different during adsorption and desorption. Effective diffusion coefficients of the papers tested vary between 4.5 × 10-12 and 8 × 10-11 m2s-1.References
Baïlon J-P, Dorlot J-M (2000) Des Matériaux. [Materials (in French).] 3rd ed. École Polytechnique de Montreal. 740 pp.nBandrup I, Immergut EH, Grulke EA (1999) Polymer handbook. 4th ed. John Wiley & Sons, New York, NY. 2288 pp.nBelleville B, Cloutier A, Blanchet P (2008) Wood-adhesive interface characterization and modeling in engineered wood flooring. Wood Fiber Sci 40(4):484 - 494.nBlanchet P, Cloutier A, Gendron G, Beauregard R (2006) Engineered wood flooring design using the finite element method. Forest Prod J 56(5):59 - 65.nBlanchet P, Cloutier A, Gendron G, Beauregard R (2007) Numerical prediction of engineered wood flooring deformation. Wood Fiber Sci 37(3):484 - 496.nBodig J, Jayne BA (1993) Mechanics of wood composites. Krieger Publishing Company, Malabor, FL. 712 pp.nDorlot J-M, Baïlon J-P, Masounave J (1986) Des matériaux. École Polytechnique de Montréal, Québec. 467 pp.nGanev S (2002) Modeling of the hygro-mechanical warping of medium density fiberboard. Doctoral thesis, Département des Sciences du Bois, Université Laval, Québec, QC, Canada. 157 pp.nGanev S, Cloutier A, Gendron G, Beauregard R (2005a) Mechanical properties of MDF as a function of density and moisture content. Wood Fiber Sci 37(2):314 - 326.nGanev S, Cloutier A, Gendron G, Beauregard R (2005b) Linear expansion and thickness swell of MDF as a function of panel density and sorption state. Wood Fiber Sci 37(2):327 - 336.nGanev S, Cloutier A, Gendron G, Beauregard R (2005c) Finite elements modeling of the hygroscopic warping of medium density fiberboard. Wood Fiber Sci 37(2):337 - 354.nHarrisson L (2005) Caractérisation des papiers de finition et des panneaux de fibres de bois de haute densité (HDF) utilises dans la production de plancher flottant. [Characterization of the finishing papers and of the high density fiberboards (HDF) used for floating parquet flooring (in French).] Master thesis, Université Laval, Québec, QC, Canada. 95 pp.nJensen U (2002) Asymmetric coating of 3D fronts a risk for dimensional stability? Conference in Institüt für Holztechnologie, Dresden, Germany. 11 pp.nNPA (1996) Standard method for measuring of warp in particleboard and medium density fiberboard (MDF). National Particleboard Association NPA18928. Premiere Court, Gaithersburg, MD.nSiau JF (1995) Wood: Influence of moisture on physical properties. Department of Wood Science and Forest Products, Virginia Polytechnic Institute and State University. 227 pp.nSuchsland O, McNatt JD (1985) On the warping of laminated wood panels. Michigan State University, East Lansing, MI. 120 pp.nSuchsland O, Woodson GE (1986) Fiberboard manufacturing practises in the United States. USDA Forest Service. Agri. Handbook No. 640. 263 pp.nTAPPI (1989) TAPPI test methods. Vol. 1. T 494 om-88. Tensile breaking properties of paper and paperboard (using constant rate of elongation apparatus). Technical Association for the Worldwide Pulp, Paper, and Converting Industry, Atlanta, GA.nWellons JD (1981) The adherents and their preparation for bonding. Pages 87 - 134 in Adhesive bonding of wood and other structural materials. Forest Products Laboratory, Forest Service, USDA and University of Wisconsin. A publication of the Educational Modules for Materials Science and Engineering (EMMSE) Project. Material Research Laboratory, The Pennsylvania State University, State College, PA.nWu Q, Suchsland O (1996) Prediction of moisture content and moisture gradient of an overlaid particleboard. Wood Fiber Sci 28(2):227 - 239.n
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