Changes in Some Physical Properties of Impregnated Particleboards of Accelerated Aging Tests
Öz
The aim of this study was to investigate effects of various wood impregnation substances on changes in weight, thickness, moisture and density of particleboards in accelerated aging tests. As wood impregnating agent, the following materials were used for production of experimental particleboards: colophony, alkyd resin, ammonium sulfate, boric acid, borax, tanalith-CBC, boric acid+borax, tanalith-CBC+boric acid+borax. The physical properties were measured before and after artificial aging tests. The results were analyzed by using SPSS statistical program by computer. In conclusion, the participation rates of wood impregnating agent affected significantly deteriorations in weight, thickness and density, except for moisture. Compared to controls, the deteriorations decreased significantly for colophony and alkyd resin, but no difference for boric acid+borax and tanalith-CBC+boric acid+borax. For weight, moisture and density, the lowest losses were obtained with 1.0%, 1.5% and 3.0% adding rates of alkyd resin (10%), respectively. The highest losses were found with 1.5% adding rate of boric acid+borax (2.5%+2.5%). For thickness, while minimum increase occurred with 1.5% adding rate of colophony (10%), maximum increase was obtained with 0.6% adding rate of tanalith-CBC+boric acid+borax (5.0%+2.5%+2.5%).
Anahtar Kelimeler
Accelerated aging,Wood protection,Particleboard,Physical properties
Kaynakça
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