Weathering Performance of Wood Coated with a Combination of Alkoxysilanes and Rutile TiO2 Heirarchical Nanostructures
The weathering performance of wood coated with a combination of rutile TiO2 hierarchical nanostructures and a sol-gel deposit of alkoxysilanes was determined by exposing three sets of specimens to UV light and water spray. The first set consisted of specimens coated with a mixture of methyltrimethox...
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North Carolina State University
2015-09-01
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Series: | BioResources |
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Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_4_7053_Zheng_Weathering_Performance_Wood_Coated |
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author | Rongbo Zheng Mandla A. Tshabalala Qingyu Li Hongyan Wang |
author_facet | Rongbo Zheng Mandla A. Tshabalala Qingyu Li Hongyan Wang |
author_sort | Rongbo Zheng |
collection | DOAJ |
description | The weathering performance of wood coated with a combination of rutile TiO2 hierarchical nanostructures and a sol-gel deposit of alkoxysilanes was determined by exposing three sets of specimens to UV light and water spray. The first set consisted of specimens coated with a mixture of methyltrimethoxysilane (MTMOS) and hexadecyltrimethoxysilane (HDTMOS). The second set consisted of specimens coated with nanostructural TiO2 followed by a mixture of MTMOS and HDTMOS. The third set consisted of uncoated control specimens. The wood coated with TiO2 followed by a mixture of MTDMOS and HDTMOS exhibited significantly less surface color change and weight loss as a result of UV light-induced degradation and erosion from water spray in comparison with the other groups. However, the coated surfaces were gradually transformed from hydrophobic to hydrophilic. Despite this apparent weakness, the MTMOS/HDTMOS/TiO2 coating, with superior photostabilization properties and resistance to surface erosion, may be useful for improving the weathering performance of wood coated with semi-transparent wood stains. |
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id | doaj.art-a32a8687fede423bb0a2d81f53e8cc6d |
institution | Directory Open Access Journal |
issn | 1930-2126 1930-2126 |
language | English |
last_indexed | 2024-04-13T22:22:58Z |
publishDate | 2015-09-01 |
publisher | North Carolina State University |
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series | BioResources |
spelling | doaj.art-a32a8687fede423bb0a2d81f53e8cc6d2022-12-22T02:27:09ZengNorth Carolina State UniversityBioResources1930-21261930-21262015-09-011047053706410.15376/biores.10.4.7053-7064Weathering Performance of Wood Coated with a Combination of Alkoxysilanes and Rutile TiO2 Heirarchical NanostructuresRongbo Zheng0Mandla A. Tshabalala1Qingyu Li2Hongyan Wang3College of Science, Southwest Forestry University, Kunming 650224, PR China; ChinaUSDA Forest Service Forest Products Laboratory; United StatesCollege of Science, Southwest Forestry University, Kunming 650224, PR China; ChinaZhejiang Forestry Academy, Hangzhou 310023, PR China; ChinaThe weathering performance of wood coated with a combination of rutile TiO2 hierarchical nanostructures and a sol-gel deposit of alkoxysilanes was determined by exposing three sets of specimens to UV light and water spray. The first set consisted of specimens coated with a mixture of methyltrimethoxysilane (MTMOS) and hexadecyltrimethoxysilane (HDTMOS). The second set consisted of specimens coated with nanostructural TiO2 followed by a mixture of MTMOS and HDTMOS. The third set consisted of uncoated control specimens. The wood coated with TiO2 followed by a mixture of MTDMOS and HDTMOS exhibited significantly less surface color change and weight loss as a result of UV light-induced degradation and erosion from water spray in comparison with the other groups. However, the coated surfaces were gradually transformed from hydrophobic to hydrophilic. Despite this apparent weakness, the MTMOS/HDTMOS/TiO2 coating, with superior photostabilization properties and resistance to surface erosion, may be useful for improving the weathering performance of wood coated with semi-transparent wood stains.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_4_7053_Zheng_Weathering_Performance_Wood_CoatedCoatingNanostructureHydrophobicRutileWeatheringWoodPhotostabilizationTitanium dioxide |
spellingShingle | Rongbo Zheng Mandla A. Tshabalala Qingyu Li Hongyan Wang Weathering Performance of Wood Coated with a Combination of Alkoxysilanes and Rutile TiO2 Heirarchical Nanostructures BioResources Coating Nanostructure Hydrophobic Rutile Weathering Wood Photostabilization Titanium dioxide |
title | Weathering Performance of Wood Coated with a Combination of Alkoxysilanes and Rutile TiO2 Heirarchical Nanostructures |
title_full | Weathering Performance of Wood Coated with a Combination of Alkoxysilanes and Rutile TiO2 Heirarchical Nanostructures |
title_fullStr | Weathering Performance of Wood Coated with a Combination of Alkoxysilanes and Rutile TiO2 Heirarchical Nanostructures |
title_full_unstemmed | Weathering Performance of Wood Coated with a Combination of Alkoxysilanes and Rutile TiO2 Heirarchical Nanostructures |
title_short | Weathering Performance of Wood Coated with a Combination of Alkoxysilanes and Rutile TiO2 Heirarchical Nanostructures |
title_sort | weathering performance of wood coated with a combination of alkoxysilanes and rutile tio2 heirarchical nanostructures |
topic | Coating Nanostructure Hydrophobic Rutile Weathering Wood Photostabilization Titanium dioxide |
url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_4_7053_Zheng_Weathering_Performance_Wood_Coated |
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