Öz
The heat treatment is a protective method of wood material that without any chemical materials in the machining industry. The test samples were prepared from oak (Quercus petraea L.). Firstly, the samples were exposed to heat treatment conditions at 170-190 and 210 ºC, 2-6 and 10 h. After finishing heat treatment process, shear strength of experiment samples which were bonded with polyurethane (PUR), phenol-formaldehyde (FF), melamine-formaldehyde (MF), melamine-urea-formaldehyde (MUF) were determinated. As a result of effect of heat treatment is negative on shear strength. While the highest shear strength value was determinated bonded melamine-formaldehyde (MF) at 170 ºC heat treatment during 2 hour from oak wood material, the lowest shear strength value was obtained bonded polyurethane (PUR) at 210 ºC heat treatment during 10 hour from oak wood material.
Keywords: Heat treatment, Shear strength, Wood material, Adhesives
Anahtar Kelimeler
Kaynakça
- Alen, R., Kotilainen, R., Zaman, A., 2002. Thermochemical behavior of Norway spruce (Picea abies) at 180-225 oC. Wood Science and Technology, 36:163-171.
- Boonstra, M.J., Van Acker, J., Kegel, E., Stevens, M., 2007. Optimisation of the two-stage heat treatment process: durability aspects. Wood Science and Technology, 41:31-57.
- BS EN 205, 2003. Adhesives. Wood adhesives for non-structural applications. Determination of tensile shear strength of lap joints, British Standards Institution.
- Follrich, J., Uller, U. M., Gindl, W., 2006. Effects of thermal modification on the adhesion between spruce wood (Picea abies Karst.) and a thermoplastic polymer, Holz als Roh- und Werkstoff, 64:373–376.
- Inari, G.N, Petrissans, M., Gerardin, P., 2007. Chemical reactivity of heat-treated wood. Wood Science and Technology, 41:157- 168.
- Korkut, S., Kocaefe, D., 2009. Isıl işlemin odun özellikleri üzerine etkisi, Düzce Üniversitesi Ormancılık Dergisi, 5 (2): 11-34.
- Pizzi, A., 1983. Wood adhesives: chemistry and technology. M. Dekker, New York, 416 pp.
- Rapp, A.O. (Ed.)., 2001. Review of heat treatment of wood. In: Proceedings of COST E22 Environmental optimisation of wood protection. Antibes, France, pp.6.
- Sernek, M., 2002. Comparative analysis of inactivated wood surfaces. Virginia Polytechnic Institute and State University, Doctoral Dissertation, 179 p.
- Sernek, M., Boonstra, M., Pizzi, A., Despres, A., Gerardin, P., 2008. Bonding performance of heat treated wood with structural adhesives. Holz als Roh-und Werkstoff, 66(3):173- 180.
- Şahin Kol, H., Uysal, B., Altun, S., Kurt, Ş., Özbay, G., 2009. Shear strength of heat treated pine wood (Pinus nigra) with some structural adhesives, Teknoloji D., Karabük, 12(1): 63-69.
- TS EN 12765, 2004. Classification of thermosetting wood adhesives for non-structural applications, Turkish Standards Institution.
- Vernois, M., 2000. Heat treatment of wood in France–state of the art, in: review on heat treatments of wood. Rapp A. O.
- Proceedings of Special Seminar held in
- Environmental optimisation of wood protection, Forestry and
- Forest Products Information and Documentation, Hamburg, Germany. Antibes:
Öz
Isıl işlem yöntemi, kimyasal maddeler kullanmadan ağaç malzemenin korunması için yapılan bir koruma yöntemidir. Bu çalışmada meşe (Quercus petraea L.) ağaç malzemeden elde edilen deney örnekleri 170,190 ve 210 ºC sıcaklıklarda 2,6 ve 10 saat süre ile ısıl işleme maruz bırakılmıştır. Isıl işlem yapıldıktan sonra deney örnekleri poliüretan (PUR), fenol-formaldehit (FF), melamin-üre-formaldehit (MUF) ve melamin-formaldehit (MF) tutkalları kullanılarak yapıştırma direnci belirlenmiştir. Sonuç olarak ısıl işlem yapışma direncini olumsuz etkilemektedir. En yüksek yapışma direnci melamin formaldehit tutkalı ile yapıştırılan 2 saat süre ile 170 ºC sıcaklıkta ısıl işlem gören meşe ağaç malzemede belirlenmiştir. En düşük yapışma direnci 210 ºC sıcaklıkta 10 saat süre ile ısıl işlem görmüş meşe ağaç malzemenin poliüretan tutkal ile yapıştırılan örneklerden elde edilmiştir.
Anahtar kelimeler: Isıl işlem, Yapışma direnci, Ağaç malzeme, Yapıştırıcılar
Anahtar Kelimeler
Kaynakça
- Alen, R., Kotilainen, R., Zaman, A., 2002. Thermochemical behavior of Norway spruce (Picea abies) at 180-225 oC. Wood Science and Technology, 36:163-171.
- Boonstra, M.J., Van Acker, J., Kegel, E., Stevens, M., 2007. Optimisation of the two-stage heat treatment process: durability aspects. Wood Science and Technology, 41:31-57.
- BS EN 205, 2003. Adhesives. Wood adhesives for non-structural applications. Determination of tensile shear strength of lap joints, British Standards Institution.
- Follrich, J., Uller, U. M., Gindl, W., 2006. Effects of thermal modification on the adhesion between spruce wood (Picea abies Karst.) and a thermoplastic polymer, Holz als Roh- und Werkstoff, 64:373–376.
- Inari, G.N, Petrissans, M., Gerardin, P., 2007. Chemical reactivity of heat-treated wood. Wood Science and Technology, 41:157- 168.
- Korkut, S., Kocaefe, D., 2009. Isıl işlemin odun özellikleri üzerine etkisi, Düzce Üniversitesi Ormancılık Dergisi, 5 (2): 11-34.
- Pizzi, A., 1983. Wood adhesives: chemistry and technology. M. Dekker, New York, 416 pp.
- Rapp, A.O. (Ed.)., 2001. Review of heat treatment of wood. In: Proceedings of COST E22 Environmental optimisation of wood protection. Antibes, France, pp.6.
- Sernek, M., 2002. Comparative analysis of inactivated wood surfaces. Virginia Polytechnic Institute and State University, Doctoral Dissertation, 179 p.
- Sernek, M., Boonstra, M., Pizzi, A., Despres, A., Gerardin, P., 2008. Bonding performance of heat treated wood with structural adhesives. Holz als Roh-und Werkstoff, 66(3):173- 180.
- Şahin Kol, H., Uysal, B., Altun, S., Kurt, Ş., Özbay, G., 2009. Shear strength of heat treated pine wood (Pinus nigra) with some structural adhesives, Teknoloji D., Karabük, 12(1): 63-69.
- TS EN 12765, 2004. Classification of thermosetting wood adhesives for non-structural applications, Turkish Standards Institution.
- Vernois, M., 2000. Heat treatment of wood in France–state of the art, in: review on heat treatments of wood. Rapp A. O.
- Proceedings of Special Seminar held in
- Environmental optimisation of wood protection, Forestry and
- Forest Products Information and Documentation, Hamburg, Germany. Antibes:
Ayrıntılar
| Birincil Dil | İngilizce |
|---|---|
| Bölüm | Orijinal Araştırma Makalesi |
| Yazarlar | |
| Yayımlanma Tarihi | 24 Eylül 2012 |
| Yayımlandığı Sayı | Yıl 2012 Cilt: 13 Sayı: 2 |
