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The role of benzotriazole modified zinc phosphate in preventing corrosion-driven organic coating disbondment on galvanised steel

Natalie Wint, Christian Griffiths, Curtis Richards, Geraint Williams Orcid Logo, Hamilton McMurray

Corrosion Science, Volume: 174, Start page: 108839

Swansea University Authors: Natalie Wint, Christian Griffiths, Curtis Richards, Geraint Williams Orcid Logo, Hamilton McMurray

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DOI (Published version): 10.1016/j.corsci.2020.108839

Abstract

A simple modification using adsorbed benzotriazole is shown to significantly improve the performance of zinc phosphate corrosion inhibitive pigment in slowing rates of organic coating failure. The novel inhibitor, ZnPhos-BTA, is dispersed within a model coating and the scanning Kelvin probe (SKP) is...

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Published in: Corrosion Science
ISSN: 0010-938X 1879-0496
Published: Elsevier BV 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa54592
first_indexed 2020-07-02T09:20:22Z
last_indexed 2025-03-22T05:27:53Z
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spelling 2025-03-21T14:00:05.7663620 v2 54592 2020-07-02 The role of benzotriazole modified zinc phosphate in preventing corrosion-driven organic coating disbondment on galvanised steel 5be5dcc4b97c78b3063e258add4fff5c Natalie Wint Natalie Wint true false 6ec8aad26102e4a1c7b00c1832471424 Christian Griffiths Christian Griffiths true false 2a966cb27e89e7679962a2b6155bba2b Curtis Richards Curtis Richards true false 0d8fc8d44e2a3c88ce61832f66f20d82 0000-0002-3399-5142 Geraint Williams Geraint Williams true false 56fc1b17ffc3bdf6039dc05c6eba7f2a Hamilton McMurray Hamilton McMurray true false 2020-07-02 A simple modification using adsorbed benzotriazole is shown to significantly improve the performance of zinc phosphate corrosion inhibitive pigment in slowing rates of organic coating failure. The novel inhibitor, ZnPhos-BTA, is dispersed within a model coating and the scanning Kelvin probe (SKP) is used to monitor corrosion driven cathodic coating delamination from hot dip galvanized steel (HDG). Disbondment kinetics are obtained as a function of pigment volume fraction (ϕ) and compared to those obtained for unmodified ZnPhos. Additions of 0.1 ϕ ZnPhos-BTA result in an almost 20-fold reduction in delamination rate compared to standard ZnPhos at the equivalent volume fraction. Journal Article Corrosion Science 174 108839 Elsevier BV 0010-938X 1879-0496 A. Steel; A. Zinc; A. Organic coatings; C. Atmospheric corrosion 1 9 2020 2020-09-01 10.1016/j.corsci.2020.108839 COLLEGE NANME COLLEGE CODE Swansea University Not Required The authors would like to thank Tata Steel Europe for providing samples and EPSRC for the funding for the PhD studentship via an Industrial Case Award with Tata Steel Europe. (EP/L505699/1). 2025-03-21T14:00:05.7663620 2020-07-02T10:14:55.3007432 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Natalie Wint 1 Christian Griffiths 2 Curtis Richards 3 Geraint Williams 0000-0002-3399-5142 4 Hamilton McMurray 5 54592__17623__3d73bd74fe4845e8b95c33442d8630db.pdf 54592.pdf 2020-07-02T10:19:53.1854084 Output 4107854 application/pdf Accepted Manuscript true 2021-06-27T00:00:00.0000000 © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license true English http://creativecommons.org/licenses/by-nc-nd/4.0/
title The role of benzotriazole modified zinc phosphate in preventing corrosion-driven organic coating disbondment on galvanised steel
spellingShingle The role of benzotriazole modified zinc phosphate in preventing corrosion-driven organic coating disbondment on galvanised steel
Natalie Wint
Christian Griffiths
Curtis Richards
Geraint Williams
Hamilton McMurray
title_short The role of benzotriazole modified zinc phosphate in preventing corrosion-driven organic coating disbondment on galvanised steel
title_full The role of benzotriazole modified zinc phosphate in preventing corrosion-driven organic coating disbondment on galvanised steel
title_fullStr The role of benzotriazole modified zinc phosphate in preventing corrosion-driven organic coating disbondment on galvanised steel
title_full_unstemmed The role of benzotriazole modified zinc phosphate in preventing corrosion-driven organic coating disbondment on galvanised steel
title_sort The role of benzotriazole modified zinc phosphate in preventing corrosion-driven organic coating disbondment on galvanised steel
author_id_str_mv 5be5dcc4b97c78b3063e258add4fff5c
6ec8aad26102e4a1c7b00c1832471424
2a966cb27e89e7679962a2b6155bba2b
0d8fc8d44e2a3c88ce61832f66f20d82
56fc1b17ffc3bdf6039dc05c6eba7f2a
author_id_fullname_str_mv 5be5dcc4b97c78b3063e258add4fff5c_***_Natalie Wint
6ec8aad26102e4a1c7b00c1832471424_***_Christian Griffiths
2a966cb27e89e7679962a2b6155bba2b_***_Curtis Richards
0d8fc8d44e2a3c88ce61832f66f20d82_***_Geraint Williams
56fc1b17ffc3bdf6039dc05c6eba7f2a_***_Hamilton McMurray
author Natalie Wint
Christian Griffiths
Curtis Richards
Geraint Williams
Hamilton McMurray
author2 Natalie Wint
Christian Griffiths
Curtis Richards
Geraint Williams
Hamilton McMurray
format Journal article
container_title Corrosion Science
container_volume 174
container_start_page 108839
publishDate 2020
institution Swansea University
issn 0010-938X
1879-0496
doi_str_mv 10.1016/j.corsci.2020.108839
publisher Elsevier BV
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 1
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description A simple modification using adsorbed benzotriazole is shown to significantly improve the performance of zinc phosphate corrosion inhibitive pigment in slowing rates of organic coating failure. The novel inhibitor, ZnPhos-BTA, is dispersed within a model coating and the scanning Kelvin probe (SKP) is used to monitor corrosion driven cathodic coating delamination from hot dip galvanized steel (HDG). Disbondment kinetics are obtained as a function of pigment volume fraction (ϕ) and compared to those obtained for unmodified ZnPhos. Additions of 0.1 ϕ ZnPhos-BTA result in an almost 20-fold reduction in delamination rate compared to standard ZnPhos at the equivalent volume fraction.
published_date 2020-09-01T09:02:42Z
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