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Journal of Coatings Technology and Research

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09-06-2017

Surface coating performance of TiO₂ nanoparticle-modified veneered panels and their influence on formaldehyde emission

Authors: Xiao Dong Zhu, Yu Liu, Zhao Li

Published in: Journal of Coatings Technology and Research | Issue 6/2017

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Abstract

The physical and mechanical properties of wood and wood-based panels can be effectively improved by modification with nanoparticles. This paper focuses on effects of modifying veneer with titanium dioxide (TiO₂) nanoparticles on the performance of a waterborne coating and formaldehyde emission. Commercial waterborne varnish was used to apply a surface finish on the modified veneered panels. Changes caused by TiO₂ nanoparticle treatment that could affect the finishing performance were measured. The results showed slight increases in the weight and contact angle of the veneers treated with TiO₂ nanoparticles, whereas the modified veneered panels after surface finishing presented improved hardness at high nanoparticle loadings. Modification of the veneers by nanoparticles had a minor negative influence on the coating glossiness and adhesion due to a blocking effect between the coating film and the modified veneers. Formaldehyde emissions were considerably reduced due to degradation by the TiO₂ particles under UV-light irritation.

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Title: Surface coating performance of TiO2 nanoparticle-modified veneered panels and their influence on formaldehyde emission
Authors: Xiao Dong Zhu
Yu Liu
Zhao Li
Publication date: 09-06-2017
Publisher: Springer US
Published in: Journal of Coatings Technology and Research / Issue 6/2017
Print ISSN: 1547-0091
Electronic ISSN: 1935-3804
DOI: https://doi.org/10.1007/s11998-017-9925-6

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