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IMPREGNATION OF BIO-OIL FROM SMALL DIAMETER PINE INTO WOOD FOR MOISTURE RESISTANCE

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Robinson et al Bioresources 2011.pdf (488.5Kb)
Date
2013-04-04
Author
Robinson, T.J.
Via, Brian
Fasina, Oladiran
Adhikari, Sushil
Carter, Emily
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Abstract
Wood pyrolysis oil consists of hundreds of complex compounds, many of which are phenolic-based and exhibit hydrophobic properties. Southern yellow pine was impregnated with a pyrolysis oil-based penetrant using both a high pressure and vacuum impregnation systems, with no significant differences in retention levels. Penetrant concentrations ranging from 5-50% pyrolysis oil/methanol on a volume basis were used to determine the threshold concentration for significant physical property improvement. Wood impregnated with penetrant concentration of at least 10% exhibited significant reduction in both moisture sorption and tangential swelling when exposed to a 90% relative humidity and 21°C environment. When exposed to liquid water in a 24-hour soak test, analysis revealed a negative linear relationship between penetrant concentration and both moisture sorption and tangential swell. However, during the course of the 24-hour soak test, a significant linear relationship between penetrant concentration and leachate was determined.
URI
http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_06_4_4747_Robinson_VFAC_Impreg_BioOil_PIne_Wood_Moisture
http://hdl.handle.net/11200/44160
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