Comparison of the bond strength of oak (Quercus L.) and beech (Fagus sylvatica L.) wood glued with different adhesives considering various hydrothermal exposures

https://doi.org/10.17221/95/2014-JFSCitation:Král P., Klímek P., Děcký D. (2015): Comparison of the bond strength of oak (Quercus L.) and beech (Fagus sylvatica L.) wood glued with different adhesives considering various hydrothermal exposures. J. For. Sci., 61: 189-192.
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The investigation of the hydrothermal exposure effect on the glue-line strength is obvious when outdoor application of wood products is in option. In our research the bonding quality of oak (Quercus L.) and beech (Fagus sylvatica L.) wood was tested in different conditions according to EN 205. After each exposure the lap joint test specified the shear strength of wood bonded with PVAC and PU adhesive. In our research different behaviour concerning both types of adhesives and selected wood species was observed. The most significant decrease (–80%) of the shear strength was found when the PVAC was used to bond oak wood. Therefore the PVAC adhesive is most likely less suitable for the bonding of the block board in outdoor conditions. On the contrary, the best results in the same conditions were obtained by the oak when the polyurethane adhesive was used. It indicates that the PU adhesive is more suitable for the bonding of oak wood. Considering results of beech wood, there were not found this interaction.
References:
Aicher Simon, Ohnesorge Denny (2011): Shear strength of glued laminated timber made from European beech timber. European Journal of Wood and Wood Products, 69, 143-154  https://doi.org/10.1007/s00107-009-0399-9
 
Brandmair Anton, Clauß Sebastian, Haß Philipp, Niemz Peter (2012): Verklebung von Laubhölzern mit 1K-PUR-Klebstoffen für den Holzbau. Bauphysik, 34, 210-216  https://doi.org/10.1002/bapi.201200025
 
Clauβ Sebastian, Allenspach Karin, Gabriel Joseph, Niemz Peter (2011): Improving the thermal stability of one-component polyurethane adhesives by adding filler material. Wood Science and Technology, 45, 383-388  https://doi.org/10.1007/s00226-010-0321-y
 
Custódio João, Broughton James, Cruz Helena (2009): A review of factors influencing the durability of structural bonded timber joints. International Journal of Adhesion and Adhesives, 29, 173-185  https://doi.org/10.1016/j.ijadhadh.2008.03.002
 
Dilik Tuncer, Dündar Türker, Kurtoğlu Ahmet, Hiziroglu Salim (2007): Effect of adhesive types on some of the properties of laminated window profiles. Journal of Materials Processing Technology, 189, 320-324  https://doi.org/10.1016/j.jmatprotec.2007.02.002
 
Follrich Jürgen, Vay Oliver, Veigel Stefan, Müller Ulrich (2010): Bond strength of end-grain joints and its dependence on surface roughness and adhesive spread. Journal of Wood Science, 56, 429-434  https://doi.org/10.1007/s10086-010-1118-1
 
Frihart Charles R. (2009): Adhesive Groups and How They Relate to the Durability of Bonded Wood. Journal of Adhesion Science and Technology, 23, 601-617  https://doi.org/10.1163/156856108X379137
 
Hass Philipp, Wittel Falk K., Mendoza Miller, Herrmann Hans J., Niemz Peter (2012): Adhesive penetration in beech wood: experiments. Wood Science and Technology, 46, 243-256  https://doi.org/10.1007/s00226-011-0410-6
 
Kläusler Oliver, Hass Philipp, Amen Carlos, Schlegel Sven, Niemz Peter (2014): Improvement of tensile shear strength and wood failure percentage of 1C PUR bonded wooden joints at wet stage by means of DMF priming. European Journal of Wood and Wood Products, 72, 343-354  https://doi.org/10.1007/s00107-014-0786-8
 
Konnerth Johannes, Gindl Wolfgang, Harm Michael, Müller Ulrich (2006): Comparing dry bond strength of spruce and beech wood glued with different adhesives by means of scarf- and lap joint testing method. Holz als Roh- und Werkstoff, 64, 269-271  https://doi.org/10.1007/s00107-006-0104-1
 
Král Pavel, Klímek Petr, Mishra Pawan Kumar (): Bonding Strength of Thermally Treated Spruce (Picea abies) and Oak Wood. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 62, 539-542  https://doi.org/10.11118/actaun201462030539
 
Mendoza Miller, Hass Philipp, Wittel Falk K., Niemz Peter, Herrmann Hans J. (2012): Adhesive penetration of hardwood: a generic penetration model. Wood Science and Technology, 46, 529-549  https://doi.org/10.1007/s00226-011-0422-2
 
MINELGA Darius, UKVALBERGIENĖ Kristina, BALTRUŠAITIS Antanas, BALČIŪNAS Gintautas (2013): Adhesion Properties between Polyvinyl Acetate Dispersion and Ammonia Modified Oak Wood. Materials Science, 19, -  https://doi.org/10.5755/j01.ms.19.2.4433
 
Plötze Michael, Niemz Peter (2011): Porosity and pore size distribution of different wood types as determined by mercury intrusion porosimetry. European Journal of Wood and Wood Products, 69, 649-657  https://doi.org/10.1007/s00107-010-0504-0
 
Schmidt M. (2010): Glueing european hardwoods for load bearing timber structures. In: PTF BPI 2010, Kuchl, Oct 7, 2010, 38–42.
 
Uysal Burhanettin, Özçifçi Ayhan (2006): Bond strength and durabilty behavior of polyurethane-based Desmodur-VTKA adhesives used for building materials after being exposed to water-resistance test. Journal of Applied Polymer Science, 100, 3943-3947  https://doi.org/10.1002/app.22899
 
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