Oriented strand board with improved dimensional stability by extraction of hemicelluloses

Wood and Fiber Science

View Publication Info
 
 
Field Value
 
Title Oriented strand board with improved dimensional stability by extraction of hemicelluloses
 
Creator Hornus, Marina Natalia
Cheng, George
Vega Erramuspe, Iris Beatriz
Peresin, Maria Soledad
Gallagher, Tom
Via, Brian
 
Subject Wood composites
OSB; dimensional stability; water adsorption; hydrothermal treatment; hemicelluloses extraction; hemicelluloses
OSB
 
Description Oriented strand board (OSB) panels are commonly used for wooden building structures such as Walls, floors, ceilings, and furniture. These wood composites are manufactured with small wooden strands held together in specific orientations by adhesives. Other additives such as wax might be added to reduce water absorption. One of the limitations of the panels produced today is their poor performance under high humidity conditions. The goal of the present work was 1) to extract hemicelluloses from pine wood strands before the fabrication of OSB panels and 2) to test the impact of the pretreatment on the dimensional stability of these panels. For that purpose, pressure-assisted hydrothermal processes at three different temperatures (120, 140, and 160oC) were performed for 45 min of extraction time in each case. Hemicelluloses in treated wood strands were quantified using high-performance liquid chromatography. Water absorption, thickness swell, MOE, MOR, and internal bond strength were measured to assess the influence of the pretreatment on OBS properties. According to the results, a hydrothermal pretreatment is beneficial for the performance of OSB panels at high humidity levels. The pretreatment of pine strands at 160oC allowed for the maximum removal of hemicelluloses, without a significant degradation of cellulose or lignin, and the OSB panels pretreated with these pinewood strands displayed the best performance in dimensional stability under wet conditions. 
 
Publisher Wood and Fiber Science
 
Contributor Louisiana-Pacific Corp.
Huber Engineered Materials
Forest Products Society
SMS Ltd.
AAES/NIFA Hatch
 
Date 2020-07-28
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion

 
Format application/pdf
 
Identifier http://wfs.swst.org/index.php/wfs/article/view/2868
 
Source Wood and Fiber Science; Vol 52, No 3 (2020); 257-265
0735-6161
0735-6161
 
Language eng
 
Relation http://wfs.swst.org/index.php/wfs/article/view/2868/2584
http://wfs.swst.org/index.php/wfs/article/downloadSuppFile/2868/1307
http://wfs.swst.org/index.php/wfs/article/downloadSuppFile/2868/1308
http://wfs.swst.org/index.php/wfs/article/downloadSuppFile/2868/1310
http://wfs.swst.org/index.php/wfs/article/downloadSuppFile/2868/1607
 
Rights Copyright (c) 2020 Wood and Fiber Science
 

Contact Us

The PKP Index is an initiative of the Public Knowledge Project.

For PKP Publishing Services please use the PKP|PS contact form.

For support with PKP software we encourage users to consult our wiki for documentation and search our support forums.

For any other correspondence feel free to contact us using the PKP contact form.

Find Us

Twitter

Copyright © 2015-2018 Simon Fraser University Library