The effects of oil heat treatment on oil uptake, density and moisture content in brutian pine (Pinus brutia Ten.) wood
2020
Ahmet Ali Var | Mehmet Demi̇r
The effects of hot-cold bio-oil treatment on properties of wood material from pine species are not known. The purpose of this study is to determine the effect of hot-cold bio-oil treatment on oil uptake, density and moisture content properties of Brutia pine wood. This study used castor oil (Ricinus communis L.), flaxseed oil (Oleum linii), mixtured oil (castor oil + flaxseed oil) and Brutian pine sapwood (Pinus brutia Ten.). The wood samples were treated with hot oil (110 ºC ± 2 ºC) for 6 hours before cold oil (23 ºC ± 2 ºC) for 2 hours. Then, the oil uptake, density and moisture content of treated and untreated wood samples were measured. The data were analyzed by SPSS statistical program (p0.05). The results showed that hot-cold bio-oil treatment had a significant effect on oil uptake, density and moisture content of Brutia pine wood; and there were significant differences among these effects at 95% confidence level. Such treatment increased the treated wood density between 40.38% - 78.85% compared to untreated wood, while it reduced the moisture content between 93.44% - 96.72%. It was measured the highest density in linseed oil treatment, and the lowest density in castor oil treatment. Flaxseed oil treatment gave the lowest moisture content, while the highest moisture content was measured in mixed oil treatment. Mixed oil treatment increased the moisture content compared to others; increased the density compared to castor oil; reduced compared to flaxseed oil. Accordingly, the moisture diffusion may have been prevented. Because the porosity and penetration in Brutia wood have been limited with reduced the moisture content and increased the density. <br />
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