Evaluation of Ecological Organic Paint Coatings via Electrochemical Impedance Spectroscopy

Santana, J.J.; Gonzalez, J. E.; Morales, Juan Antonio Sánchez; González, S.

doi:10.1016/s1452-3981(23)19497-1

Cited by 10 publications

(2 citation statements)

References 22 publications

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“…The Bode diagram revealed that the coating's modulus exhibits an oblique line trend with respect to frequency, indicating that the coating functions as an isolation layer characterized by high resistance and low capacitance. The electrochemical steps predominantly govern the operation of this system, with each coating's fitting circuit employing the first equivalent circuit diagram depicted in Figure 10a (1) [26]. In contrast to the coating system, a passive film forms on the surface of 304 stainless steel.…”

Section: Corrosion Resistance Of the Coatings 331 Electrochemical Pro...mentioning

confidence: 99%

Effect of Phenolic Resin Coating Thickness on Mechanical Properties and Corrosion Resistance of Metal Materials

Zhang,

Yuan,

2024

Mater. Plast.

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In the realm of petrochemical and other industries, metal materials face threats such as impact and high-temperature electrochemical corrosion. Consequently, there has been significant attention towards organic coatings that effectively attenuate impact forces while simultaneously providing a barrier against corrosive agents. The thermosetting phenolic resin 2130, known for the facile curing process, exceptional thermal stability, water resistance, corrosion resistance, and superior mechanical properties post-curing, finds extensive applications in the field of coatings. To address the challenge of depositing a complete and uniform resin coating on complex workpieces, coatings with varying thicknesses on the surface of 304 stainless steel were deposited via rotary evaporation combined with long-term low-temperature drying. The relationship between coating thickness and mechanical properties, as well as corrosion resistance, was investigated and analyzed through a comprehensive approach involving mechanical testing, electrochemical analysis, and long-term service weight loss assessment. The results demonstrated that the coatings deposited on the metal surface exhibited excellent integrity and compactness. Moreover, an increase in coating thickness led to a significant reduction in material corrosion rate. The coatings exhibited excellent substrate adhesion and flexibility, thereby providing effective protection against impact on the metal substrate. The relationship between the thickness of the coating and the surface roughness was evident, while the flexibility of the coating first increased and then decreased with the increase of coating thickness. When the coating thickness was 7 μm, the maximum surface roughness of the coating measured 0.44 μm. Under these conditions, the impact toughness of the coating reached the peak, exhibiting a ductile fracture mode and showcasing superior comprehensive mechanical properties. The findings of this study will offer theoretical support for the investigation and formulation of resin coatings in subsequent industrial production.

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Section: Corrosion Resistance Of the Coatings 331 Electrochemical Pro...mentioning

confidence: 99%

Effect of Phenolic Resin Coating Thickness on Mechanical Properties and Corrosion Resistance of Metal Materials

Zhang,

Yuan,

2024

Mater. Plast.

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“…EIS Test This test uses a tool in the form of a flat cell which acts as a medium for electrochemical cells to enable measurements of electrochemical impedance in various electrochemical systems [7]. In Table 5, it can be seen that the Nyquist plot from each sample forms a scatter plot.…”

Section: Ementioning

confidence: 99%

Analysis the Effect of Different Surface Preparation Methods on Corrosion Resistance and Adhesion Strength of ASTM A36 Steel Substrate with Surface Tolerant Epoxy Paint as Coating Material

Wijaya,

Aqila,

Riastuti

et al. 2024

JESRsf

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In the industrial world, to extend the service life of materials, protection methods are carried out to slow down the material's corrosion rate. The protection method that is often used is the coating method. The coating method is a protection method by coating the substrate material using a coating material to prevent contact between the substrate material and the environment. In this research, the substrate material used is ASTM A36 steel and the coating material used is Surface Tolerant Epoxy paint. The independent variable used in this study lies in the surface preparation method which consists of: solvent cleaning, hand tool cleaning, power tool cleaning, power tool to bare metal cleaning, and abrasive blast cleaning. Different preparation methods result in different roughness and cleanliness of the surface. This can affect changes in the mechanical properties of the coating material, such as corrosion resistance and adhesion strength. Based on the corrosion resistance test, it is found that the abrasive blast cleaning and power tool to bare metal cleaning methods produce the highest corrosion resistance properties because both have a rating number of 8 in the salt spray test results. Based on the adhesion strength test, it is found that the abrasive blast cleaning method also produces the highest adhesion strength. This conclusion refers to the results of the tape x-cut test where the sample produces a rating number 5A where the sample does not experience peeling after testing. In addition, the abrasive blast cleaning method produced the highest adhesion strength in the pull-off test, which was 7.16 Mpa. Thus, the abrasive blast cleaning method is the most effective surface preparation method for ASTM A36 steel before being coated with the coating material. In addition, it can also be concluded that the higher the surface roughness of the sample, the better the corrosion resistance and adhesion strength.

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The Study of Thin Films by Electrochemical Impedance Spectroscopy

Cesiulis

Цынцару

Ramanavičius

et al. 2016

Nanostructures and Thin Films for Multifunctional Applications

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Evaluation of Ecological Organic Paint Coatings via Electrochemical Impedance Spectroscopy

Cited by 10 publications

References 22 publications

Effect of Phenolic Resin Coating Thickness on Mechanical Properties and Corrosion Resistance of Metal Materials

Effect of Phenolic Resin Coating Thickness on Mechanical Properties and Corrosion Resistance of Metal Materials

Analysis the Effect of Different Surface Preparation Methods on Corrosion Resistance and Adhesion Strength of ASTM A36 Steel Substrate with Surface Tolerant Epoxy Paint as Coating Material

The Study of Thin Films by Electrochemical Impedance Spectroscopy

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