Preparation of poly(o-toluidine)/nano ZnO/epoxy composite coating and evaluation of its corrosion resistance properties

Hu, Chuanbo; Li, Ying; Kong, Yazhou; Ding, Yushi

doi:10.1016/j.synthmet.2016.01.021

Cited by 57 publications

(27 citation statements)

References 55 publications

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“…It is well known that the ring substituted modification of PANI usually can improve the solubility, conductivity, thermal stability, and corrosion resistance of PANI derivatives [16]. Bilal et al [17] and our group [18] have confirmed the excellent structure and corrosion resistance of poly(o-toluidine). As a very stable inorganic material, silicon carbide (SiC) has been widely used in the reinforcement phase of composite materials or coatings [19].…”

Section: Introductionsupporting

confidence: 58%

Fabrication of Poly(o/m-Toluidine)–SiC/Zinc Bilayer Coatings and Evaluation of Their Corrosion Resistances

Liu

Zhang

et al. 2018

Coatings

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The purpose of this research was to study the structure and corrosion resistance of poly(o/m-toluidine)-SiC/zinc (Zn) bilayer coatings. Poly(o/m-toluidine) films, such as poly(o-toluidine) (POT) and poly(m-toluidine) (PMT), were chemically deposited on the surface of composite SiC/Zn coating using the solution evaporation method. The structures of poly(o/m-toluidine) were characterized by various optic techniques and the electrochemical behavior was studied by cyclic voltammetry (CV). The structures and morphologies of the SiC/Zn coating were detected by Fourier transformation infrared spectroscopy (FTIR), X-ray diffraction (XRD), energy dispersive spectrometer (EDS), and scanning electron microscopy (SEM). Thereafter, the corrosion resistances of electrodeposited and bilayer coatings were investigated in 3.5% NaCl solution by electrochemical corrosion techniques and an accelerated immersion test. The results showed that the outer POT film exhibits a lower corrosion behavior with respect to PMT, which significantly reduces the corrosion rate of SiC/Zn coating and prolongs the service life of the zinc matrix. The conclusion demontrates that the stronger adsorptive POT film ensures the formed POT-SiC/Zn bilayer coatings possess a compact and low-defect surface, which facilitates POT film to develop its excellent barrier and passivation properties against corrosion.

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Section: Introductionsupporting

confidence: 58%

Fabrication of Poly(o/m-Toluidine)–SiC/Zinc Bilayer Coatings and Evaluation of Their Corrosion Resistances

Liu

Zhang

et al. 2018

Coatings

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“…The doped state spectra are categorized by the presence of small peak at 425 nm. The peak at 313 nm is assigned to the π-π* transition of the bezenoid rings, whereas the peak occurred at 425 nm can be assigned to the localized polarons which are the characteristics of doped PmANI [9].…”

Section: Fig 2 Xrd Of Doped Pmanimentioning

confidence: 99%

DC Conductivity in P-Toluenesulphonic Acid Doped Poly (2-Methylaniline)

Kapil*¹,

Sharma²

2019

IJRTE

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Para-toluenesulphonic acid doped Poly(2-methylaniline) (PmANI) was synthesized by chemical method using ammoniumpersulphate (APS) as an oxidant. It was synthesized along with optimization studies w.r.t. varied dopant-monomer ratios for better DC conductivity. Various spectroscopies like XRD, UV-Vis and FT-IR were used to characterize the polymer. The behavior of DC conductivity with variation in temperature was studied with in the temperature range of 300 - 425 K and it was observed that conductivity rised to ~four orders with the surge in temperature. The experimental conductivity data was fitted with various conduction models to find the proper charge transport mechanism in this polymer.

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Section: Corrosion Studiesmentioning

confidence: 99%

“…The positive shift in E corr indicates that the added nanoparticles suppressed the anodic reactions on the MS surface, and therefore inhibited the entire corrosion process in the system. 20 Undoubtedly, the nanocomposite coatings have better corrosion resistance than the polymer coating. The well dispersed nanoparticles into PVTZ matrix reduces the small pores and provides tortuousness, which block/delay the electrolyte access to the steel surface.…”

Section: X-ray Diffraction Studiesmentioning

confidence: 99%

Corrosion protection performance of titania nanoparticles filled poly(4-methyl-5-vinylthiazole) applied on mild steel in 3.5% sodium chloride solution

Pugazhenthi¹,

Ghouse²

2020

Journal of Plastic Film & Sheeting

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Mild steel materials have wide applications in marine construction, because they are low cost, available and easy to handle. However, they have to be protected from corrosive media by coating with polymer hybrid materials. This paper focuses on the anticorrosive properties of poly(4-methyl-5-vinylthiazole) PVTZ coatings on mild steel. Further the coating resistance is enhanced by incorporating Titania Nano particles (TiO2NPs). The nanoparticles were evaluated using X-ray diffraction studies (XRD) and transmission electron microscopy (TEM). PVTZ and its TiO2 nanocomposite were coated on mild steel. Their anticorrosive behavior was analyzed by potentiodynamic polarization and electrochemical impedance spectroscopy in 3.5% (w/v) NaCl.

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Preparation of poly(o-toluidine)/nano ZnO/epoxy composite coating and evaluation of its corrosion resistance properties

Cited by 57 publications

References 55 publications

Fabrication of Poly(o/m-Toluidine)–SiC/Zinc Bilayer Coatings and Evaluation of Their Corrosion Resistances

Fabrication of Poly(o/m-Toluidine)–SiC/Zinc Bilayer Coatings and Evaluation of Their Corrosion Resistances

DC Conductivity in P-Toluenesulphonic Acid Doped Poly (2-Methylaniline)

Corrosion protection performance of titania nanoparticles filled poly(4-methyl-5-vinylthiazole) applied on mild steel in 3.5% sodium chloride solution

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