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Fire performances of foam core particleboards continuously produced in a one-step process

Brandverhalten von in einem einstufigen Prozess hergestellten Schaumkern-Spanplatten

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Abstract

For further progress of novel foam core particleboards, their fire performance was examined with cone calorimetry tests (ASTM E 1354-11a). Specimens with varying surface layer thicknesses, foam densities (polystyrene foam), and processing temperatures were tested. Using the initially recommended cone irradiance of 35 kW/m2, different flammability parameters were measured. In comparison to particleboards, the foam core panels generally had much higher heat release rates, somewhat higher heat of combustion and much higher smoke production due to the EPS-foam component of tested panels. The time to ignition and total heat release did not vary significantly among the samples, although certain trends could be explained. The effects of variations in specimen foam densities and processing temperatures on the flammability parameters were not very significant. However, the flammability properties improved towards that of the reference particleboard as the surface layer thickness increased from 3 to 5 mm.

Zusammenfassung

Im Rahmen der Weiterentwicklung neuartiger Spanplatten mit Schaumkern wurde das Abbrandverhalten mit Hilfe des Cone Calorimeter Tests (ASTM E 1354-11a).untersucht. Proben mit unterschiedlichen Decklagen-Dicken, Schaumkern-Dichten (Polystyrol-Schaum) und Presstemperaturen wurden geprüft. Bei Anwendung der empfohlenen Strahlungsintensität von 35 kW/m² wurden unterschiedliche Entflammbarkeiten festgestellt. Im Vergleich zu normalen Spanplatten zeigten die Schaumkernspanplatten aufgrund der EPS-Schaumanteile eine wesentlich höhere Wärmefreisetzungsrate, eine leicht erhöhte Verbrennungswärme sowie eine stark erhöhte Rauchentwicklung. Die Zeit bis zur Entzündung sowie die gesamte Wärmefreisetzung unterschieden sich nicht signifikant zwischen den Proben, wobei dennoch bestimmte Trends erklärbar waren. Die durch die Variation der Schaumkerndichten und Presstemperaturen bei der Herstellung verursachten Unterschiede waren nicht signifikant. Mit einer Zunahme der Decklagendicke von 3 mm auf 5 mm näherte sich die Entflammbarkeit der Schaumkern-Spanplatten an die Entflammbarkeit der als Referenz verwendeten normalen Spanplatten an.

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Acknowledgments

Ali Shalbafan is indebted to the Ministry of Science, Research and Technology of Iran for his Ph.D scholarship. The authors acknowledge the work of laboratory technician, Ms. Anne Fuller and the support of FPL Fire Safety team leader, Dr. Robert White, to obtain the cone calorimeter data. Special thanks to Professor Joerg B. Ressel at Hamburg University and Dr. Jan Luedtke at Johann Heinrich von Thünen Institute for their valuable contribution to this paper.

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Authors and Affiliations

  1. Department of Wood Science, University of Hamburg, Leuschnerstrasse 91c, 21031, Hamburg, Germany

    Ali Shalbafan

  2. USDA Forest Service, Forest Products Laboratory, One Gifford Pinchot Drive, Madison, WI, 53726-2398, USA

    Mark A. Dietenberger

  3. Johann Heinrich von Thuenen-Institute (vTI), Institute of Wood Technology and Wood Biology, 21031, Hamburg, Germany

    Johannes Welling

Authors
  1. Ali Shalbafan
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  2. Mark A. Dietenberger
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  3. Johannes Welling
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Correspondence to Ali Shalbafan.

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Shalbafan, A., Dietenberger, M.A. & Welling, J. Fire performances of foam core particleboards continuously produced in a one-step process. Eur. J. Wood Prod. 71, 49–59 (2013). https://doi.org/10.1007/s00107-012-0653-4

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  • DOI: https://doi.org/10.1007/s00107-012-0653-4

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