http://www.cnr.it/ontology/cnr/individuo/prodotto/ID130686
Surface process effect on PVAc glued joints (Comunicazione a convegno)
- Type
- Label
- Surface process effect on PVAc glued joints (Comunicazione a convegno) (literal)
- Anno
- 2009-01-01T00:00:00+01:00 (literal)
- Alternative label
Fellin M., Hernández R.E., Negri M. (2009)
Surface process effect on PVAc glued joints
in ISCHP International Scientific Conference on Hardwood Processing, Parigi, Francia
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Fellin M., Hernández R.E., Negri M. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
- Proceedings of ISCHP, 28-29 September (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Titolo
- Surface process effect on PVAc glued joints (literal)
- Abstract
- The changes in glueline shear strength on sugar
maple, American beech, paper birch wood bonded
with polyvinyl acetate (PVAc) adhesive were
evaluated. The wood species had different surface
properties as the result of across and along to the
grain helical planing and sanding with three grit size
sandpapers (g.s.p.). The specimens prepared to
determine the effect of the variables on bond
performance were subjected to shear test in an
universal test machine. Surface roughness and
wetting properties of wood were measured;
microscopic analysis allowed to reveal damages on
wood surface. Sugar maple specimens were also
subjected to an accelerated aging treatment. The
most effective surfacing methods were the helical
planing process along and across the grain and
sanding process with 150 g.s.p., all able to obtain
the best surface for gluing, reaching a peak stress of
22,5 N/mm2.
Among the different species studied, sugar maple
gave the best gluing performance, followed by
American beech, and paper birch. Sanding with 60
and 100 g.s.p. produced the roughest surfaces,
showing compressed parenchyma rays and torn
fibres. Among the studied species paper birch
showed the roughest surfaces followed by American
beech and sugar maple. Sugar maple sanded with
100 g.s.p. had the highest contact and equilibrium
angles, sugar maple sanded with 120 g.s.p. had the
lowest. (literal)
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