Enhancement of the adhesion and anticorrosive properties of an epoxy coating by the application of a cerium based film

Loperena, Ana Paula; Lehr, Ivana Leticia; Saidman, S.B.

doi:10.1016/j.ijadhadh.2022.103221

Cited by 5 publications

(3 citation statements)

References 33 publications

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“…The reason for this is that corrosive media, such as water and chloride ions, infiltrate the coating through its pores after exposure to the atmosphere. This leads to electrochemical reactions occurring on the surface of both the coating and substrate, resulting in an accumulation of corrosion products, while the chemical or physical bonds between the coating and substrate interfaces are weakened and destroyed by solar UV radiation, resulting in a reduction of adhesion between the coating and substrate (Loperena et al , 2022; Xia et al , 2019).…”

Section: Resultsmentioning

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: Resultsmentioning

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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“…45,46 Epoxy resin has established a good position in the commercial market and is widely used in the field of adhesives and coatings. [47][48][49][50][51] However, their use has brought many negative effects to our environment, because 70% of these epoxy resins are from the toxic petroleum based bisphenol A precursors. At present, diglycidyl ether of Bisphenol A (DGEBA) is the most used epoxy resin, which accounts for more than 70% of commercial epoxy resin.…”

Section: Introductionmentioning

confidence: 99%

“…Epoxy resin has established a good position in the commercial market and is widely used in the field of adhesives and coatings 47–51 . However, their use has brought many negative effects to our environment, because 70% of these epoxy resins are from the toxic petroleum based bisphenol A precursors.…”

Section: Introductionmentioning

confidence: 99%

Sorbitol‐based epoxy anti‐smudge coatings with liquid repellency for various applications

Wu,

Lin,

Yuan

et al. 2023

J of Applied Polymer Sci

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In this work, a novel sorbitol‐based epoxy anti‐smudge coatings (EPs) system were developed with sorbitol epoxy resin (SE) as raw material, branched amino poly (dimethysiloxane) (PDMS‐NH2) as a liquid‐repellent agent and isophorone diamine as a curing agent. These coatings have excellent thermal stability. The resultant coatings with 0.5 wt% PDMS‐NH2 content incorporated are exhibited remarkable self‐cleaning performance, and has good liquid repellency to various liquids (water, fingerprint fluid, strong acid solution, cola, ink, hexadecane, pump oil, milk, corn oil, soy sauce, machine oil, and strong alkali solution), sliding down the coating surface and leaving no trace. Besides, these sorbitol‐based epoxy anti‐smudge coating system show highly transparency, excellent corrosion resistance, and excellent anti‐ink performance on different substrates. More strikingly, sorbitol‐based epoxy anti‐smudge coatings can be dyed into different colors without affecting its anti‐ink performance, indicating sorbitol‐based epoxy anti‐smudge coatings possessed practical application availability.

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Effect of Al3+ on the surface microstructure and film formation mechanism of Zr-based conversion coatings with improved corrosion resistance performance on cold rolled steel

He,

Yan,

Gao

et al. 2024

Electrochimica Acta

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Enhancement of the adhesion and anticorrosive properties of an epoxy coating by the application of a cerium based film

Cited by 5 publications

References 33 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

Sorbitol‐based epoxy anti‐smudge coatings with liquid repellency for various applications

Effect of Al3+ on the surface microstructure and film formation mechanism of Zr-based conversion coatings with improved corrosion resistance performance on cold rolled steel

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