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Einfluß der Verkernung und des Baumalters auf die Eigenschaften von Spanplatten aus Kiefernholz (Pinus sylvestris). Teil 3

Einige chemische Eigenschaften von Spanplatten aus Kern- und Splintholz der Kiefer
Influence of heartwood and the age of tree on the properties of particleboards from pine. Part 3
 
: Roffael, E.; Dix, B.

:

Holz als Roh- und Werkstoff 55 (1997), S.153-157
ISSN: 0018-3768
Deutsch, Englisch
Zeitschriftenaufsatz
Fraunhofer WKI ()
board; chemical property; chemische Platteneigenschaft; heartwood; Kernholz; particle board; pine; Spanplatte

Abstract
One-layer boards of 20 mm thickness were prepared from the chips from sap- and heartwood of 20- and 126-year-old pine of the same site using melamine-urea-phenol-formaldehyde resin (PF-resin), tannin-formaldehyde resin (TF-resin) and an adhesive based on polymeric diisocyanate (PMDI). Some chemical properties of the boards were determined. The results reveal: pH-value and buffering capacity of water extracts derived from the boards depend mainly on the binder used. There is no clear influence of heart- and sapwood on the afore-mentioned properties.

: http://publica.fraunhofer.de/dokumente/PX-10915.html