| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 1011.31 KB | Adobe PDF |
Advisor(s)
Abstract(s)
A study was made of water-related properties of Pinus pinaster wood impregnated with paraffin or modified by heat treatment or furfurylation. Treated woods were submerged in water for periods ranging from 2 to 1680 hours. Water absorption, swelling, and dimensional stability in the radial and tangential directions – expressed as Anti-Shrinking Efficiency (ASE) – were determined. Water absorption increased with time, reaching approximately 140% after 1680 h for untreated and heat-treated wood, and 60% for paraffinated and furfurylated wood. The rate of swelling differed between the first hours of soaking and after prolonged immersion. The final swelling was approximately 9% and 6% for untreated pine, 8% and 4% for paraffinated pine, 5.5% and 3% for heat-treated pine and 2.5% and 1% for furfurylated pine (in the tangential and radial directions respectively). At the end of the soaking test, furfurylated pine had the best ASE of approximately 80% and 70% in the tangential and radial directions respectively, followed by heat-treated pine with 44% and 34%, and paraffinated wood with 35% and 13%. [
Description
Keywords
ASE furfurylation heat treatment modified wood paraffin impregnation swelling water soaking
Citation
Domingos, I., Ferreira, J., Cruz-Lopes, L., & Esteves, B. (2018). Water-Related Properties of Pinus Pinaster Wood Treated by Different Methods. Drewno, 61(202), 69–80. https://doi.org/10.12841/wood.1644-3985.270.07