Annals of Warsaw University of Life Sciences - SGGW

Annals of Warsaw University of Life Sciences – SGGW
Forestry and Wood Technology No 71, 2010: 20-23
(Ann. WULS-SGGW, For and Wood Technol. 71, 2010)
Possibilities and limits of the finishing of the particleboards from fibrous
chips
PIOTR BEER 1 , DOROTA FUCZEK 2 , GRZEGORZ KOWALUK 3 , MARCIN ZBIE� 4
1 Department of Construction and Technology of Final Wood Products, Warsaw University of Life Science,
Nowoursynowska 159, 02-776 Warsaw, Poland
2 Wood–Based Materials and Glues Department, Wood Technology Institute, Winiarska Str. 1, 60-654
Pozna�, Poland
3 Certification Centre of Wood Industry Products, Wood Technology Institute, Winiarska Str. 1, 60-654
Pozna�, Poland
4 Department of Mechanical Processing of Wood, Warsaw University of Life Science, Nowoursynowska 159, 02-
776 Warsaw, Poland
Abstract: Possibilities and limits of the finishing of the particleboards from fibrous chips. In the present paper
the investigation results of the surface roughness of the particleboards produced from the fibrous chips from
willow Salix Viminalis L. and robinia Robinia Pseudoacacia L. are described. There is no special limitations
according to the finishing technology of the panels from fibrous chips. The surface of the panels produced from
the fibrous chips are better than the surface of the panels made out from the industrial particles.
Keywords: Particleboard, fibrous chip, surface, finishing, roughness.
INTRODUCTION
There are number of methods of finishing of the faces of the particleboards for furniture
production. The most common industrial method is the overlapping by short-cycle laminating
film, HPL or CPL. Another way is finishing with use of natural wood veneers. Because of the
not attractive surface of raw particleboards, finishing of these panels with use transparent
lacquers is practically unparalleled. The roughness of the finished surface can not be the most
important when finishing by veneers with higher thicknesses. In case of thin overlapping
materials, e.g. Touchwood, the finished surface should have the surface roughness well
prepared, without appreciable cavities or irregularities. The “microchips” fractions used
in particleboards’ face layers production, with high resination, help with achieving the proper,
smooth surface. According to [Hiziroglu and Suzuki 2007] 1, also the density of the panels
can influence the surface roughness. This conclusion is confirmed by [Nemli et al. 2005] 2.
According to [Rolleri and Roffael 2009] 3 the particleboards with the outer layers made out
from recycled particles had the roughest surfaces irrespective of the adhesive used, compare
to the “fresh” microchips. There is no research conducted on the surface roughness in the light
of the surface finishing method, for the particleboards produced from fibrous chips.
The aim of this work was to investigate the surface roughness of the panels produced
from fibrous chips from willow Salix Viminalis L. and robinia Robinia Pseudoacacia L.
MATERIALS AND METHODS
The panels from fibrous chips were prepared as it was mentioned by [Kowaluk et al.
2010] 4. The three types of particles were used to panels production: robinia, willow and
industrial particles. The panels were produced with two different densities: 660 and 600
kg/m 3 . This give 6 different panel types: industrial particles (ip660 and ip600), robinia (r660
and r600) and willow (w660 and w600). For investigations the sanded panels were taken
before the finishing by laminate film. The measurements of the chosen parameters
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