Dimensional Stability of Poplar Wood by Paraffin Emulsion, Quaternary Ammonium and Hydrated Starch using Full-cell Treatment

Document Type : Research Paper

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Abstract

The dimensional stability of wood is an important property for outdoor applications.
In this study, the dimensional stabilization of poplar wood (Populus Alba) by applying emulsion of paraffin, quaternary ammonium and starch was investigated. Paraffin at three levels of 0%, 3%, 5%, quaternary ammonium at three levels of 0%, 1.5%, 2.5% and starch at three levels of 0%, 1% and 2% were selected as variables. Some physical characteristics including longitudinal, tangential and radial swelling were determined. Based on the results, for optimizing physical properties, the treatment of 5% paraffin, 0-1.5% quaternary ammonium and 0-1% starch was recommended.
 

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1- Hoseinzadeh, A.R., M.,Shikholeslami, 1364, Investigation on the quality of the best Poplar clone in Azarbayjan, Institute of  forest and tore research, NO. 42, p.1-23p(In Persian)
2- Sturm, C, 1994. Method of waterproof wood and associated composition, United states patent 5968284.
3- Yang,z, Juwan, J, 2007, Effects of resin and wax on the water uptake behavior of wood strands.Wood and Fiber Science, 39, (2), 271-278
4- Schultz, T.P.,D.D. Nicholas, L.L Ingram, , 2007. Laboratory and outdoor water repellency and dimensional stability of southern pine sapwood treated with a waterborne water repellent made from resin acids. Holzforschung  , 61, (3) ,317-322
5- Hus, HH, Bender,S, 1988, Water repellent efficacy of wax used in hardwood.To Liquid Water Environments, Annual Book of ASTM Standard, 04.10, D 4446-84 (Reapproved 1995)
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