Influence of Nano-Al Concentrates on the Corrosion Resistance of Epoxy Coatings

Liang, Yongchun; Liu, Fuchun; Nie, Ming; Zhao, Shuyan; Lin, Jiajian; Han, En‐Hou

doi:10.1016/j.jmst.2013.01.014

Cited by 12 publications

(3 citation statements)

References 16 publications

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“…The resistance values of EP varnish had decreased to 10 6 Ω cm 2 which implied the failure of corrosive protection and delamination of coating layer. 25,26 At this stage, diffusion of electrolyte inside the EP varnish coating was completed and the electrolyte phase met the metal/oxide interface and corrosion reactions were occurred on the metal surface. However, the coatings with nano-particles kept resistance values of 10 7 Ω cm 2 and only one time constants in Nyquist plots after 480 hours.…”

Section: Electrochemical Impedance Spectroscopy Of Coatingsmentioning

confidence: 99%

Effect of different structured TiO₂particle on anticorrosion properties of waterborne epoxy coatings

Wang

Sun

et al. 2016

Corrosion Engineering, Science and Technology

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Anticorrosion properties of waterborne epoxy coatings with three structured nano-particles of TiO 2 were investigated and compared. The surface morphology and structure of TiO 2 have been analysed by XRD, SEM and N 2 adsorption-desorption. Corrosion performance of the nanocomposite coating was investigated employing electrochemical impedance spectroscopy and salt spray test. Coatings with mesoporous TiO 2 (meso-TiO 2 ) possessed the best corrosion performance among the coating specimens. The EIS results show that the resistance value of coating with meso-TiO 2 was above 5.4 × 10 8 Ω cm 2 which was higher than the other nanocomposite coatings. Possible strong interactions between polymeric matrix and meso-TiO 2 caused high barrier properties.

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Section: Electrochemical Impedance Spectroscopy Of Coatingsmentioning

confidence: 99%

Effect of different structured TiO₂particle on anticorrosion properties of waterborne epoxy coatings

Wang

Sun

et al. 2016

Corrosion Engineering, Science and Technology

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“…Penna and co-authors dispersed 2.0% and 3.0% Al NPs in alcohol solutions and obtained an epoxy coating with super-hydrophobic properties [13]. Liang and co-authors claimed that the best corrosion protection is achieved with 5 wt.% Al NP using mixers and solvents [14]. The effectiveness of the anticorrosive nanocomposite depends on the properties of the nanoparticles, the barrier property of the polymer matrix, and the dispersion of the nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behaviour of an Epoxy Resin Reinforced with Aluminium Nanoparticles

Samardžija

Alar

Špada³

et al. 2022

Coatings

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During exploitation, the properties of the epoxy coating deteriorate and therefore, it is necessary to modify it with metal particles. In this paper, spherical aluminium nanoparticles (Al NP) of 100 nm with 99.9% purity were used to modify the epoxy coating for the better corrosion protection of grey cast iron. Pure Al has a high corrosion resistance and can form a thin protective film that prevents its further oxidation, thus, becoming inert and environmentally friendly. To examine these facts, different concentrations (0.5, 0.75, 1.0, 3.0, and 6.0 wt.%) of Al nanoparticles were dispersed in the epoxy coating. The surface of the modified nanocomposite coating was analysed using scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS). Furthermore, the physical properties such as colour, thickness, hardness, and adhesion to the cast iron surface were tested as well. The same properties were tested by exposing the sample plates to corrosive conditions in the climate chamber. Their anticorrosion properties were investigated using electrochemical impedance spectroscopy (EIS) by their immersion in 3.5 wt.% NaCl solution as a corrosive medium. The coating with 0.75% Al NP showed the best corrosion resistance after 10 days of exposure in salt water, while the sample with 1.0% Al NP showed the best corrosion resistance after exposure to the icing/deicing process.

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“…However, the anticorrosion properties of waterborne coatings are far inferior to solvent coatings because the hydrophilic groups are often retained in the coating during the film formation process, decreasing the shield's ability for vapor diffusion and moisture resistance (Ai et al, 2014;Wang Z. et al, 2014;Rahman et al, 2015). Thus, the addition of corrosion inhibitors or fillers is necessary to improve the corrosion resistance of the waterborne coatings, and micro/nano inorganic particles (i.e., inorganic additives) are often applied as corrosion inhibitors or fillers (Hao et al, 2012;Ma et al, 2012b;Cheek et al, 2013;Liang et al, 2013;Suleiman et al, 2014;Das et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Preparation and Properties of Corrosion-Resistant Coatings From Waterborne Polyurethane Modified Epoxy Emulsion

Zhang

Huang

et al. 2019

Front. Mater.

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Corrosion of metal products can seriously affect their reliability. The application of coatings is the most widely used method of corrosion protection due to the desire for easy application and low cost. Most of the present corrosion-resistant coatings are solvent coatings. Due to the high content of volatile organic compounds, the use of solvent coatings is restricted. Currently, the corrosion resistance of waterborne coatings is much lower than that of solvent coatings, so research and development of waterborne corrosion-resistant coatings are necessary and valuable. A corrosion-resistant waterborne polyurethane modified epoxy (WPUME) emulsion was prepared and characterized by Fourier transform infrared (FTIR) spectra, transmission electron microscopy, and thermal gravimetric analysis. The particle size, dispersion, and solid content of the emulsion were tested by laser-scattering equipment and a weighing method. Coatings were prepared based on the emulsion, and the properties (i.e., water absorption rate, salt spray resistance, and flexibility) of the coatings were tested by the standard method, respectively. Results show that the synthesis reaction accords well with the molecule design, and the average diameter of the particles in the emulsion is 100 nm approximately. The cured coating, which is coated on tinplate sheets, has good flexibility and can withstand the salt spray test for more than 60 days (i.e., 1,440 h). The emulsion has many potential practical applications in the protection of metal materials.

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Influence of Nano-Al Concentrates on the Corrosion Resistance of Epoxy Coatings

Cited by 12 publications

References 16 publications

Effect of different structured TiO₂particle on anticorrosion properties of waterborne epoxy coatings

Effect of different structured TiO₂particle on anticorrosion properties of waterborne epoxy coatings

Corrosion Behaviour of an Epoxy Resin Reinforced with Aluminium Nanoparticles

Preparation and Properties of Corrosion-Resistant Coatings From Waterborne Polyurethane Modified Epoxy Emulsion

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Influence of Nano-Al Concentrates on the Corrosion Resistance of Epoxy Coatings

Cited by 12 publications

References 16 publications

Effect of different structured TiO2particle on anticorrosion properties of waterborne epoxy coatings

Effect of different structured TiO2particle on anticorrosion properties of waterborne epoxy coatings

Corrosion Behaviour of an Epoxy Resin Reinforced with Aluminium Nanoparticles

Preparation and Properties of Corrosion-Resistant Coatings From Waterborne Polyurethane Modified Epoxy Emulsion

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Product

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Effect of different structured TiO₂particle on anticorrosion properties of waterborne epoxy coatings

Effect of different structured TiO₂particle on anticorrosion properties of waterborne epoxy coatings