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Title: Outdoor weathering of sol-gel-treated wood

Source: In: Third International Coating Wood and Wood Composites Conference: durable and sustainable--today and beyond. Proceedings, Sept. 22-23, 2009, Charlotte, NC. Washington, D.C. : National Paint & Coatings Assocation, 2009. 1 vol.

Author(s)Tshabalala, Mandla A.; Libert, Ryan; Sutherland, Nancy Ross

Publication Year: 2009  View PDF »

Category: Conference Proceedings
Associated Research Project(s):   FPL-4707-1A

Abstract: Outdoor weathering of wood specimens treated with sol-gel formulations based on methyltrimethoxysilane (MTMOS), hexadecyltrimethoxysilane (HDTMOS), and ferric-zirconia-titania (Fe-Zr-Ti) sol was evaluated. The sol-gel process allowed deposition of a thin film of hybrid inorganic-organic networks (gel) in the wood cell wall that resulted in improved outdoor weathering properties. The sol-gel-treated specimens showed better color retention compared with non-treated control specimens after one-year exposure outdoors. However, in terms of uniformity of color retention, the general appearance of the treated specimens after outdoor exposure was only average to good. Whereas the non-treated control specimens showed slight micro-checks and uniform severe bleaching after outdoor weathering, the sol-gel-treated specimens showed relatively less bleaching that appeared to be confined to some parts of earlywood.

Keywords: Wood surfaces, wood deterioration, coatings, deterioration, thin films, moisture, water repellents, wood moisture, surface chemistry, weathering, titanium, color fading, ultraviolet radiation, zirconium, stabilizing agents, plant cell walls, nanocomposites, nanostructured materials, sol-gel deposition, moisture content, methyltrimethoxysilane, MTMOS, durability, exposure tests, discoloration, titanium, titanium compounds, ferric-zirconia-titania, Fe-Zr-Ti, hexadecyltrimethoxysilane, HDTMOS, photodegradation, photostabilization, surface properties, sol-gel treated wood, color stability

Publication Review Process: Informally Refereed (Peer-Reviewed)

File size: 470 kb(s)

Date posted: 10/06/2010

This publication is also viewable on Treesearch:  view
RITS Product ID: 31192
Current FPL Scientist associated with this product
Tshabalala, Mandla A.
Research Chemist

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