Development and experimental verification of innovative corrosion protection epoxy coatings for steel

Balachandra, Anagi M.; Nassar, Roz‐Ud‐Din; Soroushian, Parviz

doi:10.1108/acmm-04-2023-2793

Cited by 3 publications

(1 citation statement)

References 57 publications

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“…However, the utilization of organic coatings presents a more intricate yet highly effective approach owing to their exceptional physical barrier properties and stable chemical characteristics (Galtiere Corrêa Rêgo et al , 2023; Lin et al , 2019; Tianyu Zhang et al , 2023; Xia et al , 2019). Epoxy coatings are widely used as anticorrosion coatings due to their exceptional mechanical properties, wear and chemical resistance and strong substrate adhesion (Balachandra et al , 2023; Jin et al , 2015; Madhusudhana et al , 2020). However, prolonged exposure to harsh atmospheric environments can cause erosion-induced flaking failure of the coating (Hou et al , 2017).…”

Section: Introductionmentioning

confidence: 99%

Correlation between the initial aging of epoxy coatings and the typical marine atmospheric environmental factors

Song,

Qin,

Zhou

et al. 2023

ACMM

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Purpose The anticorrosion coatings used in marine and atmospheric environment are subjected to many environmental factors. And the aging failure has been puzzling researchers. The purpose of this study is to find the correlation between the initial aging of epoxy coatings and the typical marine atmospheric environmental factors. Design/methodology/approach The epoxy coatings were subjected to a one-year exposure in three typical marine atmospheres. Meanwhile, principal component analysis, linear regression and Spearman and gray correlation analysis were applied to quantify the environmental characteristics and establish correlations with the coating aging. Findings The results indicate that the coating will undergo macroscopic fading and chalking upon exposure to the marine atmosphere, while microscopic examination reveals holes, cracks and partial peeling. The adhesion performance and electrochemical properties of the coating deteriorated with prolonged exposure, coating aging mainly occurs with the generation of O-H bonds and the breakage of molecular chains such as C-N and C-O-C. The coating was most deeply aged after exposure to the Xisha, followed by Zhoushan and finally Qingdao. Environmental factors affect the photooxidative aging and hydrolytic degradation processes of coatings and thus coating aging. To further demonstrate the correlation between environmental factors and coating aging, principal component analysis was used. The correlation model between environmental factors and coating aging was subsequently obtained. The correlation model between the rate of coating adhesion loss (E) and the comprehensive evaluation parameter of environmental factors (Z) is expressed as E = 0.142 + 0.028Z. Meanwhile, the Spearman correlation analysis and gray correlation method were used to investigate the impact of each environmental factor on coating aging. Solar irradiation, relative humidity and wetting time have the highest correlation with coating aging, which are all above 0.8 and have the greatest influence on coating aging; wind speed and temperature have the smallest correlation with coating aging, which are about 0.6 and have the least influence on coating aging. Originality/value This paper establishes a correlation between typical marine environmental factors and coating aging performance, which is crucial for predicting the service life of other coatings in diverse environments.

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Section: Introductionmentioning

confidence: 99%

Correlation between the initial aging of epoxy coatings and the typical marine atmospheric environmental factors

Song,

Qin,

Zhou

et al. 2023

ACMM

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Aging behavior difference between aqueous coatings and solvent coatings in sulfuric acid environment

Wang,

Li,

Zhou

et al. 2024

ACMM

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Purpose This paper aims to compare the aging behavior of water-based coatings and solvent-based coatings in sulfuric acid environments and to discuss the related mechanism. Design/methodology/approach A sulfuric acid solution with a concentration of 5 Wt.% was selected for immersion test at 23°C. The failure behavior of the coating was studied by combining the transformation rules of the macroscopic morphology and basic properties with the results of electrochemical impedance spectrum analysis. Findings The results showed that the surface smoothness of the water-based coating was lower than that of the solvent-based coating. The glossiness, thickness and hardness of the water-based coating exhibited more significant changes. The electrochemical test also indicated that the water-based coating was infiltrated by a large number of corrosive media, which may have induced corrosion under the coating. In contrast, the solvent-based coating showed good shielding properties, but the adhesion was seriously affected by the corrosive medium. Originality/value This work clarified the difference of failure behavior and mechanism between water-based coatings and solvent-based coatings in acidic environment and provided a theoretical basis for the selection and mechanism research of anticorrosive coatings.

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Review on aviation intelligent self-healing anti-corrosion coating

Chen,

Sui,

2023

ACMM

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Purpose This paper aims to focus on the research progress of intelligent self-healing anti-corrosion coatings in the aviation field in the past few years. The paper provides certain literature review supports and development direction suggestions for future research on intelligent self-healing coatings in aviation. Design/methodology/approach This mini-review uses a systematic literature review process to provide a comprehensive and up-to-date review of intelligent self-healing anti-corrosion coatings that have been researched and applied in the field of aviation in recent years. In total, 64 articles published in journals in this field in the last few years were analysed in this paper. Findings The authors conclude that the incorporation of multiple external stimulus-response mechanisms makes the coatings smarter in addition to their original self-healing corrosion protection function. In the future, further research is still needed in the research and development of new coating materials, the synergistic release of multiple self-healing mechanisms, coating preparation technology and corrosion monitoring technology. Originality/value To the best of the authors’ knowledge, this is one of the few systematic literature reviews on intelligent self-healing anti-corrosion coatings in aviation. The authors provide a comprehensive overview of the topical issues of such coatings and present their views and opinions by discussing the opportunities and challenges that self-healing coatings will face in future development.

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Development and experimental verification of innovative corrosion protection epoxy coatings for steel

Cited by 3 publications

References 57 publications

Correlation between the initial aging of epoxy coatings and the typical marine atmospheric environmental factors

Correlation between the initial aging of epoxy coatings and the typical marine atmospheric environmental factors

Aging behavior difference between aqueous coatings and solvent coatings in sulfuric acid environment

Review on aviation intelligent self-healing anti-corrosion coating

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