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

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

Corrosion Science, Volume: 174, Start page: 108839

Swansea University Authors: Natalie Wint, Chris 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
Published: Elsevier BV 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa54592
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spelling 2021-12-01T14:00:06.4451220 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 Chris Griffiths Chris 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 FGSEN 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 A. Steel; A. Zinc; A. Organic Coatings; C. Atmospheric Corrosion 1 9 2020 2020-09-01 10.1016/j.corsci.2020.108839 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2021-12-01T14:00:06.4451220 2020-07-02T10:14:55.3007432 Professional Services ISS - Uncategorised Natalie Wint 1 Chris 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
Chris 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
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0d8fc8d44e2a3c88ce61832f66f20d82
56fc1b17ffc3bdf6039dc05c6eba7f2a
author_id_fullname_str_mv 5be5dcc4b97c78b3063e258add4fff5c_***_Natalie Wint
6ec8aad26102e4a1c7b00c1832471424_***_Chris Griffiths
2a966cb27e89e7679962a2b6155bba2b_***_Curtis Richards
0d8fc8d44e2a3c88ce61832f66f20d82_***_Geraint Williams
56fc1b17ffc3bdf6039dc05c6eba7f2a_***_Hamilton McMurray
author Natalie Wint
Chris Griffiths
Curtis Richards
Geraint Williams
Hamilton McMurray
author2 Natalie Wint
Chris Griffiths
Curtis Richards
Geraint Williams
Hamilton McMurray
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container_title Corrosion Science
container_volume 174
container_start_page 108839
publishDate 2020
institution Swansea University
issn 0010-938X
doi_str_mv 10.1016/j.corsci.2020.108839
publisher Elsevier BV
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hierarchy_top_title Professional Services
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hierarchy_parent_title Professional Services
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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 2020-09-01T04:08:14Z
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