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Publication Information

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Title: Outdoor weathering of sol-gel-treated wood

Author: Tshabalala, Mandla A; Libert, Ryan; Sutherland, Nancy Ross;

Date: 2009

Source: Third International Coating Wood and Wood Composites Conference : durable and sustainable--today and beyond: proceedings, September 22-23, 2009 ... Charlotte, NC. [Plymouth Meeting, PA] : NPCA/FSCT, 2009: 12 p.

Publication Series: Miscellaneous Publication

Description: 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

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Tshabalala, Mandla A; Libert, Ryan; Sutherland, Nancy Ross; 2009. Outdoor weathering of sol-gel-treated wood. In: Third International Coating Wood and Wood Composites Conference: durable and sustainable--today and beyond: proceedings, September 22-23, 2009 ... Charlotte, NC. [Plymouth Meeting, PA?] : NPCA/FSCT, 2009: 12 p.

 


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