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Essential oil treatment of VTC wood

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dc.contributor.advisor Kamke, Fred A.
dc.contributor.advisor Morrell, Jeffery J.
dc.creator Scouse, Adam A.
dc.date.accessioned 2012-10-10T19:59:33Z
dc.date.available 2012-10-10T19:59:33Z
dc.date.copyright 2012-09-13
dc.date.issued 2012-09-13
dc.identifier.uri http://hdl.handle.net/1957/34327
dc.description Graduation date: 2013 en_US
dc.description.abstract Western juniper and cinnamon essential oils were combined with ethanol at 2.5, 5, and 10% concentrations by weight and applied to hybrid poplar (Populus trichocarpa x P. deltoids) veneers by vacuum soaking to produce a naturally durable wood veneer with increased mechanical properties for use in structural composites. Half of these veneers were then modified using viscoelastic thermal compression to increase veneer density and modulus of elasticity. Following densification, unprocessed and VTC processed veneers receiving an essential oil treatment were subjected to an AWPA E21-06 Formosan termite exposure test, AWPA E24-06 mold box test, and brown rot (Gloeophyllum trabeum) decay bending test. While VTC processing drastically reduced the abundance of chemical components inherent within essential oil treatments, veneer specimens without VTC processing showed increased durability. A 10% juniper oil treatment drastically reduced Formosan termite attack on hybrid poplar veneers while a 10% cinnamon oil treatment significantly reduced mold growth. Timbor®, an industrial powdered borate treatment, withstood VTC processing and inhibited Formosan termite attack and mold growth. Tests to evaluate the effectiveness of essential oil treatments against brown rot were unsuccessful. Results suggest that incorporating a disodium octaborate tetrahydrate (DOT) treatment prior to VTC processing could help improve VTC wood durability. en_US
dc.language.iso en_US en_US
dc.subject.lcsh Essences and essential oils en_US
dc.subject.lcsh Wood preservatives en_US
dc.subject.lcsh Veneers and veneering en_US
dc.subject.lcsh Wood -- Preservation en_US
dc.subject.lcsh Wood, Compressed en_US
dc.subject.lcsh Black cottonwood en_US
dc.title Essential oil treatment of VTC wood en_US
dc.type Thesis/Dissertation en_US
dc.degree.name Master of Science (M.S.) in Wood Science en_US
dc.degree.level Master's en_US
dc.degree.discipline Forestry en_US
dc.degree.grantor Oregon State University en_US
dc.contributor.committeemember Moss, Todd
dc.contributor.committeemember Bailey, Mike J.
dc.description.peerreview no en_us

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