Amelioration of anticorrosion and hydrophobic properties of epoxy/PDMS composite coatings containing nano ZnO particles

Ammar, Sh.; Ramesh, K.; Vengadaesvaran, B.; Arof, A.K.

doi:10.1016/j.porgcoat.2015.12.007

Cited by 174 publications

(112 citation statements)

References 44 publications

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“…Ammar et al (2016b) and other researchers (Zhou et al 2014;Ramezanzadeh et al 2016) have attributed the better corrosion protection performance of the nanocomposite coating systems, compared to the unmodified polymeric systems, to the ability of the nanoparticles to fill up the porosity of the polymeric matrices and further enhance the quality of the coating film by promoting the possibility of achieving the optimal defect-free coating film. This forced the corrosive agents to travel longer distances to reach the surface of the substrate.…”

Section: Electrochemical Impedance Spectroscopy (Eis) Measurementmentioning

confidence: 99%

Anticorrosion Properties of Epoxy/Nanocellulose Nanocomposite Coating

et al. 2017

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Nanocellulose (NC) is an attractive reinforcement agent that can be incorporated into protective coatings because it is a renewable, biodegradable, and biocompatible polymer resource. In this study, a series of epoxy resin-based nanocomposites were prepared in the form of coatings with various amounts of NC loadings, and the coatings were applied onto mild steel at room temperature. The characterizations of the NC and nanocomposites were performed via X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and Fourier transform infrared spectroscopy (FTIR). The thermophysical properties of the nanocomposites were evaluated using differential scanning calorimetry (DSC) and thermogravimetry (TGA) analyses. The transparency of the nanocomposite specimens was examined by ultraviolet visible (UV-Vis) spectroscopy in the range of 300 to 800 nm. The corrosion protection properties of the coated mild steel substrates immersed in a 3.5% NaCl solution were studied comparatively by electrochemical impedance spectroscopy (EIS). The results showed that all of the nanocomposite coatings with NC noticeably influenced the epoxy-diamine liquid pre-polymer, both physically and chemically. Furthermore, the 1 wt.% NC nanocomposite coating system was found to have the most pronounced anti-corrosion properties, as confirmed by a 30-day EIS study.

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Section: Electrochemical Impedance Spectroscopy (Eis) Measurementmentioning

confidence: 99%

Anticorrosion Properties of Epoxy/Nanocellulose Nanocomposite Coating

et al. 2017

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“…Covalent bonding between the dispersed nanoparticles and composite matrix improves the mechanical stability of the coating, thereby resulting in improved durability. Ammar et al [87] and Zhang et al [88] employed zinc oxide nanoparticles, whereas Liu et al used nickel-based nano electro-brush plating for fabricating a superhydrophobic coating [89]. All methods exhibited variable degrees of mechanical stabilities as well.…”

Section: Nanoparticle-based Superhydrophobic Coatingsmentioning

confidence: 99%

Mechanical Durability of Engineered Superhydrophobic Surfaces for Anti-Corrosion

2018

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Engineered superhydrophobic coating for anti-corrosion applications is a subject of great significance at present. However, the use of superhydrophobic coatings for anti-corrosion applications is hindered by the mechanical durability in many cases. There is a need for an understanding not only of how to fabricate such surfaces, but also of the corrosion resistance and mechanical durability of those coatings. This review discusses recent developments in the mechanical durability of superhydrophobic coatings primarily used for anti-corrosion. First, superhydrophobicity is introduced with an emphasis on different wetting models. After that, this review classifies the nanofabrication methods based on the material and methods of surface functionalization. Furthermore, the testing procedures used for the measurement of corrosion and mechanical durability are presented. Finally, the mechanical durability and anti-corrosion performance of the developed superhydrophobic coatings are discussed.

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“…Ammar et al point out that the incorporation ZnO nanoparticles in epoxy resin increases the composite surface roughness and, consequently, the hydrophobicity of the material 26 . Przadka et al also obtained an increase of hydrophobicity using POSS, and they related it with the increase of surface roughness 27 .…”

Section: Contact Anglementioning

confidence: 99%

Evaluation of the Mechanic and Electrochemical Properties of an Epoxy Coating with Addition of Different Polyhedral Oligomeric Silsesquioxanes (POSS) Applied on Substrate of Low Alloy Steel

et al. 2017

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The epoxy resin is one of the matrices most employed in obtaining composites and coatings. Its properties have been modified using materials such as clays and polyhedral oligomeric silsesquioxanes -POSS. The use of POSS in the preparation of thermosetting nanocomposites has been studied in obtaining hybrid materials with higher mechanic and surface properties. The functionality of POSS cage is important, since a thermosetting is formed by a cross-linked structure that can interact at any direction, forming bonds or acting in the interface of the cages inserted. This works aims to evaluate the influence of three POSS (Glycidylisobutyl-POSS, Triglycidylisobutyl-POSS and Glycidyl-POSS) added in epoxy resin, in the mechanic and electrochemical behaviors, when applied on low alloy steel. It was observed an increase in roughness and hydrophobicity. The sample containing Glycidylisobutyl-POSS presented the best results of corrosion resistance. Glycidyl-POSS showed an inefficient dispersion, forming agglomerates, leading to a low electrochemical behavior.

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Amelioration of anticorrosion and hydrophobic properties of epoxy/PDMS composite coatings containing nano ZnO particles

Cited by 174 publications

References 44 publications

Anticorrosion Properties of Epoxy/Nanocellulose Nanocomposite Coating

Anticorrosion Properties of Epoxy/Nanocellulose Nanocomposite Coating

Mechanical Durability of Engineered Superhydrophobic Surfaces for Anti-Corrosion

Evaluation of the Mechanic and Electrochemical Properties of an Epoxy Coating with Addition of Different Polyhedral Oligomeric Silsesquioxanes (POSS) Applied on Substrate of Low Alloy Steel

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