Anticorrosion performance of an eco-friendly coating system including an epoxy tie primer with aluminum tripolyphosphates and a polyurethane topcoat for marine aluminum alloy

Ge, Xinru; Fan, Wei; Tang, Hao; Yang, Jie; Ding, Rui; Zhao, Xiaodong

doi:10.1016/j.porgcoat.2022.107294

Cited by 8 publications

(4 citation statements)

References 24 publications

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“…(2) the coatings' slow-release impact on the passivation of the substrate; (3) the enhanced wet adhesion between the organic film and the substrate; (4) the increased circuit resistance between the coating and the substrate; (5) adding metal powder (such as zinc [37]) to the paint plays a cathodic protection role at the expense of the anode. Ge et al [38] sprayed epoxy resin primer containing aluminum tripolyphosphate (ATP) and polyurethane topcoat sequentially on the surface of 5083 aluminum alloy to form a double-layer organic coating. Its charge transfer resistance increased ten times compared with blank aluminum alloy after soaking in 3.5 wt.% NaCl solution for 15 days.…”

Section: Organic Painting Coatingsmentioning

confidence: 99%

Preparation and Applications of Superhydrophobic Coatings on Aluminum Alloy Surface for Anti-Corrosion and Anti-Fouling: A Mini Review

Zhu,

Du,

Liu

et al. 2023

Coatings

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Aluminum alloy is widely used in many fields for its excellent performance. However, in practical application, aluminum alloy is easy to become corroded and be invalidated, owing to the influence of environmental factors. Some pollutants or corrosive media q5 its surface adhesion will further deepen the failure rate of aluminum alloy, resulting in a large amount of workforce waste, waste of material and financial resources, and energy consumption. So the anti-corrosion and anti-fouling treatment of aluminum alloy surfaces to expand their practical application range and reduce energy loss are of great significance. In this paper, we first summarize the types of anti-corrosion and anti-fouling coatings on aluminum alloy surfaces. We found that superhydrophobic coating has attracted widespread attention recently because of its surface’s non-wetting and low surface energy characteristics. The superhydrophobic coating refers to a coating with a water contact angle on its surface greater than 150° and a sliding angle of less than 10°. Preparing superhydrophobic coatings on the surface of aluminum alloy can improve the corrosion resistance and anti-pollutant adhesion ability at the same time. Therefore, in the following part of the review, the preparation methods of superhydrophobic coatings on aluminum alloy surfaces for anti-corrosion and anti-fouling and the significant problems encountered in the practical application of the superhydrophobic coating on aluminum alloy surfaces, such as poor anti-corrosion durability and poor mechanical stability, and the existing methods to solve these critical problems, are summarized and discussed in detail. Finally, we put forward some new solutions to solve these vital issues.

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Section: Organic Painting Coatingsmentioning

confidence: 99%

Preparation and Applications of Superhydrophobic Coatings on Aluminum Alloy Surface for Anti-Corrosion and Anti-Fouling: A Mini Review

Zhu,

Du,

Liu

et al. 2023

Coatings

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“…Thus, the market for these applications is dominated by solventborne epoxy and polyurethane-based coatings. [19][20][21] Admittedly, the properties of these coatings are excellent, but are not environmentally sustainable products, as large amounts of volatile organic compounds are emitted to the atmosphere. That is why there is still the necessity of developing waterborne systems that can compete with the solventborne products.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Waterborne Anticorrosive Coatings Based on The Incorporation of Phosphate Groups to Polyurethane‐Acrylate Hybrids

Barquero

Llorente

Minudri

et al. 2023

Macro Reaction Engineering

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In this work, solvent‐free waterborne polyurethane‐poly(meth)acrylate hybrid dispersions that can be used to formulate anticorrosive paints are synthesized. To achieve the anticorrosive protection, a phosphate containing polymerizable surfactant, Sipomer PAM 200 is incorporated to the hybrids. The presence of phosphate groups can produce an iron phosphate passivation layer to provide coatings with anticorrosive properties. These properties are tested in both mild and harsh corrosive environments. It is observed that when the films are dried at 60% relative humidity conditions, very poor anticorrosive protection is achieved because no phosphatization is obtained, but increasing the humidity to 85% during the drying step allows the formation of the passivation layer providing good anticorrosive properties.

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“…Samarium has been used in conversion coating 34,35 and alloys to improve corrosion prevention in aluminum 36,37 , magnesium 38,39 , and steel 40,41 . The principle of protection against corrosion using samarium as an inhibitor is based on the formation of oxides and hydroxides that are insoluble and block the cathodic sites, which slows down the corrosion rate 42 .The protective effect of coatings on aluminum cast alloys has been extensively investigated in the literature [43][44][45][46][47] . The Atmospheric Pressure Plasma Jet (APPJ) is a surface treatment focused on preventing and protecting against corrosion.…”

mentioning

confidence: 99%

“…The protective effect of coatings on aluminum cast alloys has been extensively investigated in the literature [43][44][45][46][47] . The Atmospheric Pressure Plasma Jet (APPJ) is a surface treatment focused on preventing and protecting against corrosion.…”

mentioning

confidence: 99%

Study of the anticorrosive behavior of samarium as a corrosion inhibitor in multilayer systems for aluminum alloy

Mendez

Rojas

Bueno

et al. 2023

Sci Rep

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This study shows a multilayer system based on samarium compounds as a corrosion inhibitor and a continuous SiO2 layer by atmospheric pressure plasma jet (APPJ) as a protective barrier for aluminim alloy AA3003. One of the main advantages of this new coating is that it does not require vacuum chambers, which makes it easy to incorporate into production lines for automotive and aeronautical components, etc. The deposit of samarium corrosion inhibitor was carried out by two methods for comparison, the immersion method and a novel method to deposit corrosion inhibitor by APPJ. The multilayer system generated was homogeneous, continuous, adherent, and dense. The electrochemical behavior shows that the samarium compound was completely oxidized on coatings by the immersion method and favors corrosion. The APPJ deposition method shows a protective behavior against corrosion by both samarium compounds and silica depositions. XPS analyses show that the amount of Sm(OH)3 increases by the APPJ method compared with the immersion method since the spectrum of O1s is mainly controlled by OH. It was determined that the best processing times for the electrochemical study of the multilayer system were 40 min for the immersion method and 30 s for the APPJ method for the layer of corrosion inhibitor. In the case of the SiO2 barrier layer by APPJ, the best time was 60 s of exposure to the plasma jet and this coating could reduce the corrosion of AA3003 by 31.42%.

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Anticorrosion performance of an eco-friendly coating system including an epoxy tie primer with aluminum tripolyphosphates and a polyurethane topcoat for marine aluminum alloy

Cited by 8 publications

References 24 publications

Preparation and Applications of Superhydrophobic Coatings on Aluminum Alloy Surface for Anti-Corrosion and Anti-Fouling: A Mini Review

Preparation and Applications of Superhydrophobic Coatings on Aluminum Alloy Surface for Anti-Corrosion and Anti-Fouling: A Mini Review

Synthesis of Waterborne Anticorrosive Coatings Based on The Incorporation of Phosphate Groups to Polyurethane‐Acrylate Hybrids

Study of the anticorrosive behavior of samarium as a corrosion inhibitor in multilayer systems for aluminum alloy

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