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Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
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Requested Product

Title: Significance of Native Formaldehyde in Particleboards Generated during Wood Composite Panel Production

Source: Wood Adhesives 2009 / edited by Charles R. Frihart, Chiristopher G. Hunt, and Robert J. Moon. Madison, WI : Forest Products Society, c2010. 1 CD-ROM. ISBN 978-1-892529-57-2. FPS Proceedings no. 7216-09.

Author(s)Birkeland,Michael J.; Lorenz,Linda; Wescott,James M.; Frihart, Charles R.

Publication Year: 2010  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4707-2A

Abstract: Hot-pressing wood, especially as in the production of wood composites, generates significant 'native' (woodbased) formaldehyde that remains in the composite panel, even in the absence of adhesive. The level of native formaldehyde relates directly to the time and temperature of the hot-pressing. This native formaldehyde dissipates in a relatively short time and is not part of the long-term formaldehyde emission issue commonly associated with hydrolysis of urea-formaldehyde bonds. We show that the common desiccator/chromotropic acid method used in our study distinctly measures formaldehyde and not other similar compounds. Furthermore, the use of no adhesive or one type of no-added formaldehyde (NAF) adhesive in making particleboard produced significant native formaldehyde levels.

Keywords: Particle board, formaldehyde, urea-formaldehyde resins, adhesives, glue, composite materials, standards, temperature, hydrolysis, heat treatment, soybean glue, adhesion, environmental monitoring, air pollution, measurement, quality control, hot pressing, emissions, composite wood, desiccator method, chromotropic acid method, bonding

Publication Review Process: Non-Refereed (Other)

File size: 135 kb(s)

Date posted: 12/05/2010
RITS Product ID: 36566
Current FPL Scientist associated with this product
Frihart, Charles R.
Research Chemist
  

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