Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative

Authors

  • Mustafa Zor
  • Ahmet Can

Keywords:

CT-scanning, FT-IR, impregnation, strength, wood welding

Abstract

Environmentally friendly processes are of great interest and considerably needed due to the worldwide problem of pollution. Linear vibration welding of timber structural elements provides new opportunities to potentially achieve structural joints. Mechanically induced vibrational wood fusion welding is shown to be due mostly to the melting and flowing of some amorphous, cells-interconnecting polymer material in the structure of wood, mainly lignin, but also hemicelluloses. In this study, poplar (Populus euramericana) samples were impregnated with alkaline copper quat (ACQ) in order to enhance welding performance. Chemical changes of the impregnated and welded specimens were characterized by FT-IR techniques. A decrease in the proportion of unoxidized phenolic groups in the lignin were observed by FT-IR and the decreased joint strength observed is impregnated wood. After impregnation, shear strength decreased by 37 % to 54 %. The X-ray CT-scanning results revealed that the average density of the poplar wood (368 kg/m3) increased to 710 kg/m3 by welding.

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References

American Society for Testing and Materials. ASTM. 1976. ASTM-D 1413-76: Standard test methods of testing wood preservatives by laboratory soil block cultures. ASTM International, West Conshohocken, PA, USA. https://www.astm.org/

European Standards. EN. 2013. EN 302-1: Adhesives for load-bearing timber structures - test methods - part 1: determination of longitudinal tensile shear strength. European Committee for standardization, Brussels, Belgium. https://www.en-standard.eu/

Gardner, D.J.; Blumentritt, M.; Wang, L.; Yildirim, N. 2015. Adhesion theories in wood adhesive bonding. In Progress in Adhesion and Adhesives. Mittal, K.L. (Ed.). Chapter 5: 125-168. John Wiley & Sons, Inc., San Francisco, CA, USA. https://doi.org/10.1002/9781119162346.ch5

Gfeller, B.; Zanetti, M.; Properzi, M.; Pizzi, A.; Pichelin, F.; Lehmann, M.; Delmotte, L. 2003. Wood bonding by vibrational welding. J Adhes Sci Technol 17(11): 1573-1589. https://doi.org/10.1163/156856103769207419

Kesik, H.İ.; Keskin, H.; Temel, F.; Öztürk, Y. 2016. Bonding Strength and Surface Roughness Properties of Wood Materials Impregnated with Vacsol Aqua. Kastamonu Univ Orman Fak Derg 16(1): 181-189. http://dergipark.ulakbim.gov.tr/kastorman/article/view/5000167402/5000167059

Mansouri, H.R.; Omrani, P.; Pizzi, A. 2009. Improving the water resistance of linear vibration-welded wood joints. J Adhes Sci Technol 23(1): 63-70. https://doi.org/10.1163/156856108X335595

Navi, P.; Sandberg, D. 2011. Thermo-hydro-mechanical wood processing. EPFL Press, New York, USA. 280 pp. https://doi.org/10.1201/b10143

Omrani, P.; Pizzi, A.; Mansouri, H.R.; Leban, J.M.; Delmotte, L. 2009. Physico-chemical causes of the extent of water resistance of linearly welded wood joints. J Adhes Sci Technol 23(6): 827-837. https://doi.org/10.1163/156856108X396345

Örs, Y.; Atar, M.; Keske, H. 2004. Bonding strength of some adhesives in wood materials impregnated with Imersol-Aqua. Int J Adhes Adhes 24(4): 287–294. https://doi.org/10.1016/j.ijadhadh.2003.10.007

Özçifçi, A. 2006. Effects of Boron Compounds on the Bonding Strength of PF & MF adhesives to impregnated wood materials. J Adhes Sci Technol 20(10): 1147-1153. https://doi.org/10.1163/156856106777890590

Pizzi, A. 1982a. The Chemistry and Kinetic Behavior of Cu-Cr-As Wood Preservatives, II. Fixation of Cu/Cr system on wood. J Polym Sci 20(3): 704-724. https://doi.org/10.1002/pol.1982.170200311

Pizzi, A. 1982b. The Chemistry and Kinetic Behavior of Cu-Cr-As Wood Preservatives, IV. Fixation of CCA to Wood. J Polymer Sci: Polymer Chemistry Edition 20(3): 739-764. https://doi.org/10.1002/pol.1982.170200313

Pizzi, A.; Properzi, M.; Leban, J. M.; Zanetti, M.; Pichelin, F. 2003. Mechanically induced wood welding. Maderas-Cienc Tecnol 5(2): 101-106. http://dx.doi.org/10.4067/S0718-221X2003000200001

Pizzi, A.; Leban, J.M.; Kanazawa, F.; Properzi, M.; Pichelin, F. 2004. Wood dowel bonding by high-speed rotation welding. J Adhes Sci Technol 18(11): 1263-1278.https://doi.org/10.1163/1568561041588192

Uysal, B. 2006. Influence of pretreatment on shear strength of various wood species. J Appl Polym Sci 100(1): 245-252. https://doi.org/10.1002/app.23030

Vick, C.B.; Christiansen, A.W. 1993. Cure of phenol-formaldehyde adhesive in the presence of CCA-treated wood by differential scanning calorimetry. Wood Fiber Sci 25(1): 77-86. https://wfs.swst.org/index.php/wfs/article/view/1080/1080

Zhang, J.; Kamdem, D.P.; Temiz, A. 2009. Weathering of copper-amine treated wood. Appl Surf Sci 256(3): 842-846. https://doi.org/10.1016/j.apsusc.2009.08.071

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Published

2021-01-01

How to Cite

Zor, M., & Can, A. (2021). Shear strength in friction welded joint of poplar wood impregnated with copper-based wood preservative. Maderas. Ciencia Y Tecnología, 23, 1–8. Retrieved from https://revistas.ubiobio.cl/index.php/MCT/article/view/4440

Issue

Vol. 23 (2021)

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Article

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