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Tailor made OSB for special application

Maßgefertigte OSB-Platten für Spezialanwendungen

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Abstract

The purpose of this study was to develop speciality oriented strand board (OSB) with high stiffness for use in products such as engineered wood flooring (EWF). Three-layer oriented strand boards were manufactured from two feedstocks of strands: a mixture of 90% aspen (Populus tremuloides) and 10% of paper birch (Betula papyrifera), and 100% of small diameter ponderosa pine logs (Pinus ponderosa). The OSB panels were manufactured under a factorial design of three resin contents, two density profiles, and three weight ratios for the face and core layers. Tests to determine density, bending modulus of elasticity (MOE), internal bond (IB) and thickness swelling (TS) were performed according to ASTM standard D 1037-06a. The results showed that the higher values of bending MOE for panels made from aspen/birch mixture and ponderosa pine, 8190 and 9050 MPa, respectively, were obtained for the same combination of factors. Such high bending MOE values are very close to Baltic birch (Betula pendula) plywood, a product known for its high stiffness. The effect of resin content on IB is more pronounced for panels made from ponderosa pine than panels made from the aspen/birch mixture. Thickness swelling of panels made from ponderosa pine strands is higher than thickness swelling of panels made from a mixture of aspen and birch strands. The results indicate the potential to tailor an OSB for a specific application such as EWF.

Zusammenfassung

Ziel dieser Studie war es, spezielle OSB-Platten mit hoher Steifigkeit zu entwickeln, die für Produkte wie zum Beispiel Doppelböden (EWF) verwendet werden können. Dreischichtige OSB-Platten wurden aus zwei verschiedenen Strands hergestellt: einer Mischung aus 90% Espe (Populus tremuloides) und 10% Papierbirke (Betula papyrifera) sowie aus 100% Kiefernschwachholz (Pinus ponderosa). Die OSB-Platten wurden nach einem Faktorenversuchsplan bestehend aus drei Harzgehalten, zwei Dichteprofilen und drei Masseverhältnissen der Deck- und Mittelschichten hergestellt. Die Dichte, der Biege-Elastizitätsmodul (MOE), die Querzugfestigkeit (IB) und die Dickenquellung (TS) wurden gemäß ASTM D 1037-06a bestimmt. Die Ergebnisse zeigten, dass sich die höheren E-Moduln bei Platten sowohl aus einer Espe/Birken-Mischung (8190 MPa) als auch aus Kiefernschwachholz (9050 MPa) bei den gleichen Faktorenkombinationen ergaben. Diese hohen Biege-E-Modul-Werte erreichen nahezu die Werte für Birkensperrholz (Betula pendula), einem Produkt, das für seine hohe Festigkeit bekannt ist. Der Einfluss des Harzgehalts auf die Querzugfestigkeit ist bei Platten aus Kiefernschwachholz stärker ausgeprägt als bei Platten aus Espe/Birken-Mischung. Platten aus Kiefernschwachholz haben eine höhere Dickenquellung als Platten aus Espe/Birke. Diese Ergebnisse belegen das Potential, um maßgeschneiderte OSB-Platten für spezielle Anwendungen wie zum Beispiel Doppelböden herzustellen.

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Authors and Affiliations

  1. Sciences du bois et de la forêt, Université Laval, Québec, Qc, Canada

    Costel Barbuta & Alain Cloutier

  2. Value-added Wood Products, FPInnovations, Québec, Qc, Canada

    Pierre Blanchet

  3. Wood Materials and Engineering Laboratory, Washington State University, Pullman, WA, USA

    Vikram Yadama

  4. USDA Forest Service, Pacific Northwest Research Station, Portland, OR, USA

    Eini Lowell

Authors
  1. Costel Barbuta
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  2. Alain Cloutier
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  3. Pierre Blanchet
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  4. Vikram Yadama
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  5. Eini Lowell
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Correspondence to Pierre Blanchet.

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Barbuta, C., Cloutier, A., Blanchet, P. et al. Tailor made OSB for special application. Eur. J. Wood Prod. 69, 511–519 (2011). https://doi.org/10.1007/s00107-010-0477-z

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  • DOI: https://doi.org/10.1007/s00107-010-0477-z

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