Application of ZnO nanoparticles in a self-cleaning coating on a metal panel: an assessment of environmental benefits

Stieberova, Barbora and Zilka, Miroslav and Ticha, Marie and Freiberg, Frantisek and Caramazana-Gonzalez, Pablo and McKechnie, Jon and Lester, Edward (2017) Application of ZnO nanoparticles in a self-cleaning coating on a metal panel: an assessment of environmental benefits. ACS Sustainable Chemistry and Engineering . ISSN 2168-0485

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Abstract

This article is focused on assessing environmental benefits of a self-cleaning coating (SCCs) containing nanoparticles (NPs) applied on metal panels. ZnO NPs are incorporated in the coating to enhance the level of hydrophobicity, which enables a dramatic reduction in the need for surface maintenance. The key question evaluated in this paper is whether the overall environmental performance of a nanobased SCC is better than the environmental performance of a coating without NPs. Much of the paper is dedicated to a comparison of advanced polyvinylidene fluoride (PVDF) protective coating with an alternative coating in which part of the PVDF is replaced by ZnO NPs. An integral part of the paper represents a detailed environmental assessment of the key ingredient of the nanoenhanced coating, ZnO NPs produced by large-scale supercritical hydrothermal synthesis developed within the Sustainable Hydrothermal Manufacturing of Nanomaterials (SHYMAN) project. LCA results show that the coating with NPs performs better than the coating without NPs in all assessed impact categories. This is due to the elimination of environmental impacts during the use stage where no maintenance is needed in the case of the coating with NPs. This reduction clearly outweighs the small additional environmental impacts of the production stage associated with the ZnO NPs.

Item Type: Article
Additional Information: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Sustainable Chemistry and Engineering, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acssuschemeng.6b02848.
Keywords: Life cycle assessment, Self-cleaning coating, Zinc oxide, Nanoparticles, Supercritical hydrothermal syntheses, PVDF coating
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Chemical and Environmental Engineering
University of Nottingham, UK > Faculty of Engineering > Department of Mechanical, Materials and Manufacturing Engineering
Identification Number: 10.1021/acssuschemeng.6b02848
Depositing User: Caramazana Gonzalez, Pablo
Date Deposited: 06 Mar 2017 10:50
Last Modified: 13 Oct 2017 21:25
URI: http://eprints.nottingham.ac.uk/id/eprint/40943

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