Title: Production of innovative hemp based three-layered particleboards with reduced raw densities and low formaldehyde emissions

Authors: Christian Schopper, Alireza Kharazipour, Christian Bohn

Addresses: Georg-August-University of Gottingen, Busgen Institute, Molecular Wood Biotechnology and Technical Mycology, Buesgenweg 2, 37077 Gottingen, Germany. ' Georg-August-University of Gottingen, Busgen-Institute, Molecular Wood Biotechnology and Technical Mycology, Buesgenweg 2, 37077 Gottingen, Germany. ' Georg-August-University of Gottingen, Busgen-Institute, Molecular Wood Biotechnology and Technical Mycology, Buesgenweg 2, 37077 Gottingen, Germany

Abstract: The possibility to substitute wood by hemp for the production of wood based panels and the possibility to produce lightweight panels by using hemp are the main research focuses of this project. The regular density of three-layered particleboards (650 kg/m³) shall be decreased to less than 400 kg/m³ by the utilisation of hemp. Another quite interesting aspect that we want to analyse in line with this project is to reduce the formaldehyde emissions of urea-formaldehyde-, melamine formaldehyde- orphenol-formaldehyde-resin bonded wood based panels by using natural binder systems such as proteins and starches.

Keywords: hemp fibres; natural fibres; particle boards; three-layered particleboards; shives; wood substitution; density reduction; low densities; formaldehyde emissions; decortication; sizing; milling; raw materials; wood based panels; annual plants.

DOI: 10.1504/IJMPT.2009.027842

International Journal of Materials and Product Technology, 2009 Vol.36 No.1/2/3/4, pp.358 - 371

Available online: 12 Aug 2009 *

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