Smart epoxy coating with mesoporous silica nanoparticles loaded with calcium phosphate for corrosion protection

Zoi Lamprakou; Huichao Bi; Claus Erik Weinell; Silvia Tortajada; Kim Dam-Johansen

doi:10.1016/j.porgcoat.2022.106740

Smart epoxy coating with mesoporous silica nanoparticles loaded with calcium phosphate for corrosion protection

Zoi Lamprakou, Huichao Bi^*, Claus Erik Weinell, Silvia Tortajada, Kim Dam-Johansen

^*Corresponding author for this work

Technical University of Denmark

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

Calcium phosphate was encapsulated into mesoporous silica nanoparticles (MSN). The effect of pH on the structure and morphology of the MSN and the release of calcium phosphate from the MSN was investigated. Epoxy coatings with encapsulated (3 wt%) and non-encapsulated (3 wt% and 5 wt%) calcium phosphate were formulated and their anti-corrosive performance was evaluated by open circuit potential (OCP) and electrochemical impedance spectroscopy (EIS) techniques. Results showed that encapsulation of the calcium phosphate as inhibitive pigment in the coating can enhance the anti-corrosive performance by preventing spontaneous pigment dissolution and controlling the pigment's release from the coating.

Original language	English
Article number	106740
Journal	Progress in Organic Coatings
Volume	165
Number of pages	11
ISSN	0300-9440
DOIs	https://doi.org/10.1016/j.porgcoat.2022.106740
Publication status	Published - 2022

Keywords

Epoxy primer
encapsulation
Inhibitive pigment
Corrosion
EIS

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title = "Smart epoxy coating with mesoporous silica nanoparticles loaded with calcium phosphate for corrosion protection",

abstract = "Calcium phosphate was encapsulated into mesoporous silica nanoparticles (MSN). The effect of pH on the structure and morphology of the MSN and the release of calcium phosphate from the MSN was investigated. Epoxy coatings with encapsulated (3 wt%) and non-encapsulated (3 wt% and 5 wt%) calcium phosphate were formulated and their anti-corrosive performance was evaluated by open circuit potential (OCP) and electrochemical impedance spectroscopy (EIS) techniques. Results showed that encapsulation of the calcium phosphate as inhibitive pigment in the coating can enhance the anti-corrosive performance by preventing spontaneous pigment dissolution and controlling the pigment's release from the coating.",

keywords = "Epoxy primer, encapsulation, Inhibitive pigment, Corrosion, EIS",

author = "Zoi Lamprakou and Huichao Bi and Weinell, {Claus Erik} and Silvia Tortajada and Kim Dam-Johansen",

year = "2022",

doi = "10.1016/j.porgcoat.2022.106740",

language = "English",

volume = "165",

journal = "Progress in Organic Coatings",

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TY - JOUR

T1 - Smart epoxy coating with mesoporous silica nanoparticles loaded with calcium phosphate for corrosion protection

AU - Lamprakou, Zoi

AU - Bi, Huichao

AU - Weinell, Claus Erik

AU - Tortajada, Silvia

AU - Dam-Johansen, Kim

PY - 2022

Y1 - 2022

N2 - Calcium phosphate was encapsulated into mesoporous silica nanoparticles (MSN). The effect of pH on the structure and morphology of the MSN and the release of calcium phosphate from the MSN was investigated. Epoxy coatings with encapsulated (3 wt%) and non-encapsulated (3 wt% and 5 wt%) calcium phosphate were formulated and their anti-corrosive performance was evaluated by open circuit potential (OCP) and electrochemical impedance spectroscopy (EIS) techniques. Results showed that encapsulation of the calcium phosphate as inhibitive pigment in the coating can enhance the anti-corrosive performance by preventing spontaneous pigment dissolution and controlling the pigment's release from the coating.

AB - Calcium phosphate was encapsulated into mesoporous silica nanoparticles (MSN). The effect of pH on the structure and morphology of the MSN and the release of calcium phosphate from the MSN was investigated. Epoxy coatings with encapsulated (3 wt%) and non-encapsulated (3 wt% and 5 wt%) calcium phosphate were formulated and their anti-corrosive performance was evaluated by open circuit potential (OCP) and electrochemical impedance spectroscopy (EIS) techniques. Results showed that encapsulation of the calcium phosphate as inhibitive pigment in the coating can enhance the anti-corrosive performance by preventing spontaneous pigment dissolution and controlling the pigment's release from the coating.

KW - Epoxy primer

KW - encapsulation

KW - Inhibitive pigment

KW - Corrosion

KW - EIS

U2 - 10.1016/j.porgcoat.2022.106740

DO - 10.1016/j.porgcoat.2022.106740

M3 - Journal article

SN - 0300-9440

VL - 165

JO - Progress in Organic Coatings

JF - Progress in Organic Coatings

M1 - 106740

ER -

Smart epoxy coating with mesoporous silica nanoparticles loaded with calcium phosphate for corrosion protection

Abstract

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