The effect of adding zinc oxide nanoparticles on color change and adhesion strength of polyurethane coating on wood surface

Khojasteh Khosro, Saeed; Ghofrani, Mohammad; Ganjaei Sari, Morteza

doi:10.22092/ijwpr.2015.101482

Document Type : Research Paper

Authors

Department of Wood Science and Technology, Faculty of Civil Engineering, Shahid Rajaee Teacher Training University

https://doi.org/10.22092/ijwpr.2015.101482

Abstract

In this study the effect of adding zinc oxide nanoparticles (ZnO) on color change and adhesion strength of polyurethane clear coat in Elm wood species (Ulmus glabra) investigated. ZnO nanoparticles with concentration of 0, 0.25, 0.50, 1, 1.50 and 2 wt% were dispersed in coating. TEM (Transmission electron microscopy) images were used for investigate the dispersion of nanoparticles in coatings matrix. Results of investigate the dispersion of nanoparticles in polyurethane coating indicated that the best dispersion of nanoparticles obtained in coating with 1 wt% nano. Increasing concentration of nanoparticles to 2 wt%, reduced dispersion of nanoparticles and aggregates of nanoparticles observed in coating. Investigation adhesion strength of coating showed that the highest value of adhesion was in nanocomposite coating with 1 wt% nano but increasing nanoparticles more than this content, had negative effect on coating adhesion. Results also revealed that adding ZnO nanoparticles, changed color of samples coated with nanocomposite coating but it was not significant in low content of nanoparticles.

Keywords

Main Subjects

Biology and Wood Protection

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Iranian Journal of Wood and Paper Science Research

The effect of adding zinc oxide nanoparticles on color change and adhesion strength of polyurethane coating on wood surface

References

References

Volume 30, WINTER 4 - Serial Number 53
December 2015
Pages 690-704

The effect of adding zinc oxide nanoparticles on color change and adhesion strength of polyurethane coating on wood surface

References

References

Volume 30, WINTER 4 - Serial Number 53December 2015Pages 690-704

Volume 30, WINTER 4 - Serial Number 53
December 2015
Pages 690-704