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Smart-release inhibition of corrosion driven organic coating failure on zinc by cationic benzotriazole based pigments
Corrosion Science
Swansea University Authors: Geraint Williams , Hamilton McMurray
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DOI (Published version): 10.1016/j.corsci.2019.04.005
Abstract
A novel cationic benzotriazole pigment (CBP) based on the benzotriazolium cation (BTAH2+) exchanged into a sulfonated organic resin has been synthesized and evaluated as a means of inhibiting the corrosion-driven cathodic disbondment of organic coatings from the surface of galvanized steel. The CBP...
Published in: | Corrosion Science |
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ISSN: | 0010-938X |
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2019
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URI: | https://cronfa.swan.ac.uk/Record/cronfa49933 |
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2019-07-17T10:56:17.8485266 v2 49933 2019-04-08 Smart-release inhibition of corrosion driven organic coating failure on zinc by cationic benzotriazole based pigments 0d8fc8d44e2a3c88ce61832f66f20d82 0000-0002-3399-5142 Geraint Williams Geraint Williams true false 56fc1b17ffc3bdf6039dc05c6eba7f2a Hamilton McMurray Hamilton McMurray true false 2019-04-08 MTLS A novel cationic benzotriazole pigment (CBP) based on the benzotriazolium cation (BTAH2+) exchanged into a sulfonated organic resin has been synthesized and evaluated as a means of inhibiting the corrosion-driven cathodic disbondment of organic coatings from the surface of galvanized steel. The CBP is acidic in nature (BTAH2+ pKa ≈ 1.1) and is intended to be compatible with acidic coating formulations such as etch-primers. Delamination rates, as measured using a scanning Kelvin probe (SKP), were found to decrease monotonically with increasing CBP volume fraction (ΦCBP) and to approach zero when ΦCBP = 0.1. The mechanism of CBP operation is described. Journal Article Corrosion Science 0010-938X benzotriazole, corrosion, inhibition, zinc, galvanized steel 31 12 2019 2019-12-31 10.1016/j.corsci.2019.04.005 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2019-07-17T10:56:17.8485266 2019-04-08T11:48:44.0909917 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering C.A.J. Richards 1 H.N. McMurray 2 G. Williams 3 Geraint Williams 0000-0002-3399-5142 4 Hamilton McMurray 5 0049933-11042019084739.pdf richards2019(2)v2.pdf 2019-04-11T08:47:39.1570000 Output 21625709 application/pdf Accepted Manuscript true 2020-04-10T00:00:00.0000000 true eng |
title |
Smart-release inhibition of corrosion driven organic coating failure on zinc by cationic benzotriazole based pigments |
spellingShingle |
Smart-release inhibition of corrosion driven organic coating failure on zinc by cationic benzotriazole based pigments Geraint Williams Hamilton McMurray |
title_short |
Smart-release inhibition of corrosion driven organic coating failure on zinc by cationic benzotriazole based pigments |
title_full |
Smart-release inhibition of corrosion driven organic coating failure on zinc by cationic benzotriazole based pigments |
title_fullStr |
Smart-release inhibition of corrosion driven organic coating failure on zinc by cationic benzotriazole based pigments |
title_full_unstemmed |
Smart-release inhibition of corrosion driven organic coating failure on zinc by cationic benzotriazole based pigments |
title_sort |
Smart-release inhibition of corrosion driven organic coating failure on zinc by cationic benzotriazole based pigments |
author_id_str_mv |
0d8fc8d44e2a3c88ce61832f66f20d82 56fc1b17ffc3bdf6039dc05c6eba7f2a |
author_id_fullname_str_mv |
0d8fc8d44e2a3c88ce61832f66f20d82_***_Geraint Williams 56fc1b17ffc3bdf6039dc05c6eba7f2a_***_Hamilton McMurray |
author |
Geraint Williams Hamilton McMurray |
author2 |
C.A.J. Richards H.N. McMurray G. Williams Geraint Williams Hamilton McMurray |
format |
Journal article |
container_title |
Corrosion Science |
publishDate |
2019 |
institution |
Swansea University |
issn |
0010-938X |
doi_str_mv |
10.1016/j.corsci.2019.04.005 |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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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 novel cationic benzotriazole pigment (CBP) based on the benzotriazolium cation (BTAH2+) exchanged into a sulfonated organic resin has been synthesized and evaluated as a means of inhibiting the corrosion-driven cathodic disbondment of organic coatings from the surface of galvanized steel. The CBP is acidic in nature (BTAH2+ pKa ≈ 1.1) and is intended to be compatible with acidic coating formulations such as etch-primers. Delamination rates, as measured using a scanning Kelvin probe (SKP), were found to decrease monotonically with increasing CBP volume fraction (ΦCBP) and to approach zero when ΦCBP = 0.1. The mechanism of CBP operation is described. |
published_date |
2019-12-31T04:01:12Z |
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1763753142612131840 |
score |
11.037603 |