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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Main Authors: Rongbo Zheng, Mandla A. Tshabalala, Qingyu Li, Hongyan Wang
Format: Article
Language:English
Published: North Carolina State University 2015-09-01
Series:BioResources
Subjects:
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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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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AT qingyuli weatheringperformanceofwoodcoatedwithacombinationofalkoxysilanesandrutiletio2heirarchicalnanostructures
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