Journal article
Ability of metallic nano-particles to provide UV protection to wood surface: a preliminary experiment
Journal of Coatings Technology and Research, Vol.19(5), pp.1535-1550
2022
Abstract
The effects of various nano-particle types and sizes on color, wettability, and surface chemistry of radiata pine (Pinus radiata) sapwood samples were investigated over 6 weeks of outdoor exposure. Specimens were treated with 0.2% wt/wt water dispersions of zinc oxide (ZnO), titanium dioxide (TiO 2), aluminum oxide (Al 2 O 3), silica dioxide (SiO 2), cerium dioxide (CeO 2), and iron oxide (Fe 2 O 3), and four nano-sizes of Fe 2 O 3. Color changes during exposure were characterized by measuring CIE L*a*b* color parameters, surface wettability changes were assessed using water droplet contact angle, and chemical changes were characterized by Fourier transform infrared spectroscopy (FTIR). Nano-particles protected wood from photo-discoloration to differing degrees with iron oxide providing the most effective and consistent protection. Smaller alpha Fe 2 O 3 nano-particles provided better UV protection. Nano-particles did not reduce wettability of wood after UV exposure nor were they able to completely prevent lignin degradation. Zinc oxide nano-particles provided some cellulose and hemicellulose protection during UV exposure. Iron oxide nano-particles exhibited some potential for limiting degradation, but the differences were small and not significant from untreated controls. The results suggest that combinations of zinc and iron oxide might be useful for UV protection, and further trials are planned with these mixtures.
Details
- Title
- Ability of metallic nano-particles to provide UV protection to wood surface: a preliminary experiment
- Authors
- Tengfei Yi (Corresponding Author) - University of the Sunshine Coast, Queensland, National Centre for Timber Durability and Design LifeJeffrey Morrell (Author) - University of the Sunshine Coast, Queensland, National Centre for Timber Durability and Design Life
- Publication details
- Journal of Coatings Technology and Research, Vol.19(5), pp.1535-1550
- Publisher
- Springer New York LLC
- DOI
- 10.1007/s11998-022-00628-8
- ISSN
- 1935-3804
- Grant note
- CSC NO. 201808530496 / China Scholarship Council (http://dx.doi.org/10.13039/501100004543) HDR Funding / University of the Sunshine Coast (http://dx.doi.org/10.13039/501100001796)
- Organisation Unit
- Forest Research Institute; National Centre for Timber Durability and Design Life; School of Business and Creative Industries; University of the Sunshine Coast, Queensland
- Language
- English
- Record Identifier
- 99640277602621
- Output Type
- Journal article
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- Web Of Science research areas
- Chemistry, Applied
- Materials Science, Coatings & Films
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Source: InCites