Manipulating transport paths of inhibitor pigments in organic coating by addition of other pigments

S. Gh. R. Emad; S. Gad; Q. Ai; Y. Wan; Suzanne Morsch; T. L. Burnett; Y. Liu; S. B. Lyon; J.   Li; Xiaorong Zhou

doi:10.1016/j.porgcoat.2022.107072

Manipulating transport paths of inhibitor pigments in organic coating by addition of other pigments

S. Gh. R. Emad, S. Gad, Q. Ai, Y. Wan, Suzanne Morsch, T. L. Burnett, Y. Liu, S. B. Lyon, J. Li, Xiaorong Zhou

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

Abstract

Adequate leaching of active inhibitor pigments in organic coatings is essential for corrosion protection that relies on active inhibition of the metallic substrate. Therefore, it is important to obtain a comprehensive understanding of the factors that influence leaching kinetics and mechanisms. In the present study, model organic coatings were formulated to investigate the influence of additional pigmentation (i.e. pigments other than the main inhibitor) on the leaching of species released from the main inhibitor pigment. It is found that addition of soluble/sparingly soluble pigments into the organic coating results in increased leaching rate. This is attributed to the formation of clusters comprised of both the main inhibitor pigment and the additional pigment. The network of cavities and voids formed upon dissolution and removal of the soluble pigment introduces transport paths in the organic coating, and consequently, facilitates the leaching of the main inhibitor pigment.

Original language	English
Article number	107072
Journal	Progress in Organic Coatings
Volume	172
Early online date	5 Aug 2022
DOIs	https://doi.org/10.1016/j.porgcoat.2022.107072
Publication status	Published - 1 Nov 2022

Keywords

Cluster
Coating
Corrosion
Inorganic pigment
Inter-connected network
Leaching
Paint
Phosphate-based inhibitor
Transport path

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title = "Manipulating transport paths of inhibitor pigments in organic coating by addition of other pigments",

abstract = "Adequate leaching of active inhibitor pigments in organic coatings is essential for corrosion protection that relies on active inhibition of the metallic substrate. Therefore, it is important to obtain a comprehensive understanding of the factors that influence leaching kinetics and mechanisms. In the present study, model organic coatings were formulated to investigate the influence of additional pigmentation (i.e. pigments other than the main inhibitor) on the leaching of species released from the main inhibitor pigment. It is found that addition of soluble/sparingly soluble pigments into the organic coating results in increased leaching rate. This is attributed to the formation of clusters comprised of both the main inhibitor pigment and the additional pigment. The network of cavities and voids formed upon dissolution and removal of the soluble pigment introduces transport paths in the organic coating, and consequently, facilitates the leaching of the main inhibitor pigment.",

keywords = "Cluster, Coating, Corrosion, Inorganic pigment, Inter-connected network, Leaching, Paint, Phosphate-based inhibitor, Transport path",

author = "Emad, {S. Gh. R.} and S. Gad and Q. Ai and Y. Wan and Suzanne Morsch and Burnett, {T. L.} and Y. Liu and Lyon, {S. B.} and J. Li and Xiaorong Zhou",

note = "Publisher Copyright: {\textcopyright} 2022 The Authors",

year = "2022",

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doi = "10.1016/j.porgcoat.2022.107072",

language = "English",

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T1 - Manipulating transport paths of inhibitor pigments in organic coating by addition of other pigments

AU - Emad, S. Gh. R.

AU - Gad, S.

AU - Ai, Q.

AU - Wan, Y.

AU - Morsch, Suzanne

AU - Burnett, T. L.

AU - Liu, Y.

AU - Lyon, S. B.

AU - Li, J.

AU - Zhou, Xiaorong

PY - 2022/11/1

Y1 - 2022/11/1

N2 - Adequate leaching of active inhibitor pigments in organic coatings is essential for corrosion protection that relies on active inhibition of the metallic substrate. Therefore, it is important to obtain a comprehensive understanding of the factors that influence leaching kinetics and mechanisms. In the present study, model organic coatings were formulated to investigate the influence of additional pigmentation (i.e. pigments other than the main inhibitor) on the leaching of species released from the main inhibitor pigment. It is found that addition of soluble/sparingly soluble pigments into the organic coating results in increased leaching rate. This is attributed to the formation of clusters comprised of both the main inhibitor pigment and the additional pigment. The network of cavities and voids formed upon dissolution and removal of the soluble pigment introduces transport paths in the organic coating, and consequently, facilitates the leaching of the main inhibitor pigment.

AB - Adequate leaching of active inhibitor pigments in organic coatings is essential for corrosion protection that relies on active inhibition of the metallic substrate. Therefore, it is important to obtain a comprehensive understanding of the factors that influence leaching kinetics and mechanisms. In the present study, model organic coatings were formulated to investigate the influence of additional pigmentation (i.e. pigments other than the main inhibitor) on the leaching of species released from the main inhibitor pigment. It is found that addition of soluble/sparingly soluble pigments into the organic coating results in increased leaching rate. This is attributed to the formation of clusters comprised of both the main inhibitor pigment and the additional pigment. The network of cavities and voids formed upon dissolution and removal of the soluble pigment introduces transport paths in the organic coating, and consequently, facilitates the leaching of the main inhibitor pigment.

KW - Cluster

KW - Coating

KW - Corrosion

KW - Inorganic pigment

KW - Inter-connected network

KW - Leaching

KW - Paint

KW - Phosphate-based inhibitor

KW - Transport path

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UR - https://www.mendeley.com/catalogue/ad5aba2b-caac-38e9-aa4c-07ffc4420631/

U2 - 10.1016/j.porgcoat.2022.107072

DO - 10.1016/j.porgcoat.2022.107072

M3 - Article

VL - 172

JO - Progress in Organic Coatings

JF - Progress in Organic Coatings

SN - 0300-9440

M1 - 107072

ER -

Manipulating transport paths of inhibitor pigments in organic coating by addition of other pigments

Abstract

Keywords

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