Investigating the influence of pigmentation on the electrolyte transport properties of organic coatings using ORP-EIS

Negin Madelat; Benny Wouters; Peter Visser; Zahra Jiryaeisharahi; Kristof Marcoen; Shohsan T. Abrahami; Annick Hubin; Herman Terryn; Tom Hauffman

doi:10.1016/j.corsci.2023.111699

Investigating the influence of pigmentation on the electrolyte transport properties of organic coatings using ORP-EIS

Negin Madelat^*, Benny Wouters, Peter Visser, Zahra Jiryaeisharahi, Kristof Marcoen, Shohsan T. Abrahami, Annick Hubin, Herman Terryn, Tom Hauffman

^*Corresponding author for this work

Team Shoshan Abrahami

Research output: Contribution to journal › Article › Scientific › peer-review

Abstract

In this work, the correlation between electrolyte transport properties and the variation of pigment volume concentration (PVC) in a series of organic coatings is explored. Using an odd random phase electrochemical impedance spectroscopy (ORP-EIS) approach, the diffusion of ions independent from water take-up is analysed. A higher PVC resulted in a more homogeneous coating morphology, which could be associated with a faster diffusion of ions following a Fickian regime and enhanced water uptake. In the case of lower pigment loading, the obtained heterogenous morphology of the coating introduced new challenges to the physical interpretation of the proposed electrochemical equivalent circuit.

Original language	English
Article number	111699
Number of pages	15
Journal	Corrosion Science
Volume	227
DOIs	https://doi.org/10.1016/j.corsci.2023.111699
Publication status	Published - 2024

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Funding

Funding Information:
This research is funded by the SBO project PredictCor (project number: FWOSBO22) of the Research Foundation – Flanders (FWO). Special thanks go to OCAS for their help with GDOES measurements and Priya Laha from Vrije Universiteit Brussel for SEM measurements.

Keywords

GDOES
Ion diffusion
Organic coating
ORP-EIS
Water uptake

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10.1016/j.corsci.2023.111699

Cite this

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title = "Investigating the influence of pigmentation on the electrolyte transport properties of organic coatings using ORP-EIS",

abstract = "In this work, the correlation between electrolyte transport properties and the variation of pigment volume concentration (PVC) in a series of organic coatings is explored. Using an odd random phase electrochemical impedance spectroscopy (ORP-EIS) approach, the diffusion of ions independent from water take-up is analysed. A higher PVC resulted in a more homogeneous coating morphology, which could be associated with a faster diffusion of ions following a Fickian regime and enhanced water uptake. In the case of lower pigment loading, the obtained heterogenous morphology of the coating introduced new challenges to the physical interpretation of the proposed electrochemical equivalent circuit.",

keywords = "GDOES, Ion diffusion, Organic coating, ORP-EIS, Water uptake",

author = "Negin Madelat and Benny Wouters and Peter Visser and Zahra Jiryaeisharahi and Kristof Marcoen and Abrahami, {Shohsan T.} and Annick Hubin and Herman Terryn and Tom Hauffman",

note = "Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.",

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doi = "10.1016/j.corsci.2023.111699",

language = "English",

volume = "227",

journal = "Corrosion Science",

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T1 - Investigating the influence of pigmentation on the electrolyte transport properties of organic coatings using ORP-EIS

AU - Madelat, Negin

AU - Wouters, Benny

AU - Visser, Peter

AU - Jiryaeisharahi, Zahra

AU - Marcoen, Kristof

AU - Abrahami, Shohsan T.

AU - Hubin, Annick

AU - Terryn, Herman

AU - Hauffman, Tom

N1 - Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2024

Y1 - 2024

N2 - In this work, the correlation between electrolyte transport properties and the variation of pigment volume concentration (PVC) in a series of organic coatings is explored. Using an odd random phase electrochemical impedance spectroscopy (ORP-EIS) approach, the diffusion of ions independent from water take-up is analysed. A higher PVC resulted in a more homogeneous coating morphology, which could be associated with a faster diffusion of ions following a Fickian regime and enhanced water uptake. In the case of lower pigment loading, the obtained heterogenous morphology of the coating introduced new challenges to the physical interpretation of the proposed electrochemical equivalent circuit.

AB - In this work, the correlation between electrolyte transport properties and the variation of pigment volume concentration (PVC) in a series of organic coatings is explored. Using an odd random phase electrochemical impedance spectroscopy (ORP-EIS) approach, the diffusion of ions independent from water take-up is analysed. A higher PVC resulted in a more homogeneous coating morphology, which could be associated with a faster diffusion of ions following a Fickian regime and enhanced water uptake. In the case of lower pigment loading, the obtained heterogenous morphology of the coating introduced new challenges to the physical interpretation of the proposed electrochemical equivalent circuit.

KW - GDOES

KW - Ion diffusion

KW - Organic coating

KW - ORP-EIS

KW - Water uptake

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DO - 10.1016/j.corsci.2023.111699

M3 - Article

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VL - 227

JO - Corrosion Science

JF - Corrosion Science

M1 - 111699

ER -

Investigating the influence of pigmentation on the electrolyte transport properties of organic coatings using ORP-EIS

Abstract

Bibliographical note

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Keywords

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