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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Rohumaa, Anti
Tallinn University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024The effect of birch (Betula pendula Roth) face veneer thickness on the reaction to fire properties of fire-retardant treated plywoodcitations
- 2020Effect of Different Hardwood Species and Lay-Up Schemes on the Mechanical Properties of Plywoodcitations
- 2017Surface activation of wood by corona treatment and NaOH soaking for improved bond performance in plywoodcitations
- 2016The impact of log pre-heating on birch veneer surface quality, bond formation and plywood performance ; Haudonnan vaikutus koivuviilun pinnan laatuun, liimasauman muodostumiseen ja vanerin liimasauman lujuuteencitations
- 2016Effect of log soaking and the temperature of peeling on the properties of Rotary-cut birch (Betula pendula Roth) veneer bonded with phenol-formaldehyde adhesivecitations
- 2015Chemical characteristics of squeezable sap of hydrothermally treated silver birch logs (Betula pendula)citations
- 2015Influence of Welding Time on Tensile-Shear Strength of Linear Friction Welded Birch (Betula pendula L.) Woodcitations
- 2015The Effect of Hydrothermal Treatment on the Color Stability and Chemical Properties of Birch Veneer Surfacescitations
- 2015Chemical characteristics of squeezable sap of hydrothermally treated silver birch logs (Betula pendula):Effect of treatment time and the quality of the soaking water in pilot scale experimentcitations
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article
Surface activation of wood by corona treatment and NaOH soaking for improved bond performance in plywood
Abstract
<p>In plywood manufacturing, the surface characteristics of veneers play a critical role in achieving appropriate bonding performance. An inactivated wood surface caused by oxidation or migration of wood extractives has been shown to lead to an insufficient bonding quality. In this study, inactivated birch and spruce veneer surfaces were activated with corona and chemical NaOH treatments. The effects of the treatments were determined by contact angle measurements and bond quality tests conducted with Automated Bonding Evaluation System (ABES). In addition, the mechanical properties of the plywood produced from the treated veneers were evaluated. The results showed that the corona treatment remarkably increased the wettability of the veneer surface and bond quality of both the spruce and birch veneers evaluated by ABES. The corona treatment also improved the mechanical properties of the birch plywood, but the spruce plywood properties were not affected as much. Soaking veneers in NaOH improved the wettability, but the bond strength was lower than that of the references.</p>