Polyaniline/g-C3N4 composites as novel media for anticorrosion coatings

Zuo, Shixiang; Yao, Changfeng; Liu, Wenjie; Yao, Chao; Li, Yingruo; Ma, Jiangquan; Kong, Yong; Mao, Huihui; Li, Zhongyu; Fu, Yongsheng

doi:10.1007/s11998-017-9916-7

Cited by 33 publications

(11 citation statements)

References 23 publications

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“…fabricated the PANI/g‐C 3 N 4 nanocomposite coating using chemical oxidative polymerization, which demonstrated superior corrosion inhibition behavior of g‐C 3 N 4 than individual components on iron panels in saline solution. Their outcomes indicated that notably improved barrier performance was arisen from the synergetic effect of anticorrosion between g‐C 3 N 4 and PANI [214d] . Chen et al.…”

Section: Polymer Nanocomposite‐based Coatings For Corrosion Protectionmentioning

confidence: 99%

Polymer Nanocomposite‐based Coatings for Corrosion Protection

Peng

Xiao²,

Rong

et al. 2020

Chemistry An Asian Journal

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Corrosion of metals induces enormous loss of material performance and increase of cost, which has been a common and intractable issue that needs to be addressed urgently. Coating technology has been acknowledged to be the most economic and efficient approach to retard the metal corrosion. For several decades, polymers have been recognized as an effective anticorrosion coating material in both industries and scientific communities, as they demonstrate good barrier properties, ease of altering properties and massive production. Nanomaterials show distinctively different physical and chemical properties compared with their bulk counterparts, which have been considered as highly promising functional materials in various applications, impacting virtually all the fields of science and technologies. Recently, the introduction of nanomaterials with various properties into polymer matrix to form a polymer nanocomposite has been devoted to improve anticorrosive ability of polymer coatings. In this review article, we highlight the recent advances and synopsis of these high-performance polymer nanocomposites as anticorrosive coating materials. We expect that this work could be helpful for the researchers who are interested in the development of functional nanomaterials and advanced corrosion protection technology.

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Section: Polymer Nanocomposite‐based Coatings For Corrosion Protectionmentioning

confidence: 99%

Polymer Nanocomposite‐based Coatings for Corrosion Protection

Peng

Xiao²,

Rong

et al. 2020

Chemistry An Asian Journal

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“…amine groups (NH 2 ) improve the compatibility and interfacial bonding between g-C 3 N 4 sheets and the polyamide hardener and enhance the dispersion quality of g-C 3 N 4 sheets in epoxy coating. The well-dispersed AF g-C 3 N 4 sheets in polymer matrix can increase the tortuosity of diffusion path for corrosive agents such as H 2 O and O 2 [3]. From the other point of view, the cross-link density of epoxy coating enhances by adding AF g-C 3 N 4 due to the presence of amine groups on g-C 3 N 4 sheets and also, strong chemical bond creates between composite coating and metal surface.…”

Section: Corrosion Protection Mechanism Of Epoxy/af G-c 3 N 4 Nanocommentioning

confidence: 99%

“…Corrosion phenomenon causes notable economic loss and it is a serious threat for industries [2]. In this regard, organic coatings can provide corrosion protection for metallic materials [3]. Among polymer protective coatings, epoxy coatings are extensively used due to their high adhesion onto various substrates, high chemical resistance, and versatility [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, g-C 3 N 4 has attracted a great attention because of relative ease of synthesis, non-toxicity, and high chemical, physical, and thermal stability [23][24][25][26]. Compared to graphene based nanofillers, g-C 3 N 4 possesses unique advantages as simple preparation procedure, low cost, and semiconductor behavior [3,27]. In addition, the g-C 3 N 4 with sheet-like morphology and high aspect ratio can increase the tortuosity of diffusion path of corrosive agents in polymer matrix and therefore, improve the corrosion protection efficiency of polymer based coatings.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the g-C 3 N 4 with sheet-like morphology and high aspect ratio can increase the tortuosity of diffusion path of corrosive agents in polymer matrix and therefore, improve the corrosion protection efficiency of polymer based coatings. Accordingly, Zuo et al [3] proved that polyaniline modified g-C 3 N 4 is appropriate nanofiller for enhancing the corrosion resistance of epoxy coatings.…”

Section: Introductionmentioning

confidence: 99%

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Developing a new method for synthesizing amine functionalized g-C3N4 nanosheets for application as anti-corrosion nanofiller in epoxy coatings

Pourhashem¹,

Rashidi²,

Alaei³

et al. 2018

SN Appl. Sci.

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In this research, the effect of graphitic carbon nitride (g-C 3 N 4) on the corrosion protection performance of solvent-based epoxy coatings is investigated. The g-C 3 N 4 is synthesized by two-step condensation of melamine and is characterized by X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, and carbon-hydrogennitrogen elemental analysis. In order to enhance the dispersion of g-C 3 N 4 in epoxy coating, it is chemically functionalized with ethylenediamine vapor via a simple method. Further, epoxy coatings containing different amounts (0, 0.05, 0.1, 0.3, 0.5, and 0.7 wt%) of amine functionalized g-C 3 N 4 (AF g-C 3 N 4) are spray coated on mild steel substrate. The dispersion quality of nanofillers in coating matrix is studied by field emission scanning electron microscopy. The corrosion resistance of samples is investigated by electrochemical impedance spectroscopy. The results reveal the superior corrosion protection of nanocomposite coatings due to barrier performance of AF g-C 3 N 4. Meanwhile, epoxy coating containing 0.5 wt% AF g-C 3 N 4 shows the highest corrosion protection compared to pure epoxy sample. Keywords g-C 3 N 4 • Amine functionalization • Nanocomposite epoxy coating • Corrosion

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Enhanced anti‐aging and anti‐corrosion performance of waterborne epoxy coating layers over the dual effects of g‐C₃N₄ photocatalysis

Chen

Fei

et al. 2022

J of Applied Polymer Sci

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To overcome the drawbacks of waterborne epoxy (WEP) films, various fillers were employed to eliminate the microcracks and microporous in the coating layers. Here, photocatalysis (g‐C3N4) was incorporated into WEP coating to achieve improved long‐term anti‐aging and anti‐corrosion performance via dual effects, including barrier effects through the formation of dense and uniform composite film as well as the photocatalytic effects. The chemical structure, chemical states, photoabsorption properties, and morphology of g‐C3N4/WEP films were analyzed. Effects of g‐C3N4 content on the mechanical properties, water resistance, anti‐corrosion behaviors, anti‐permeation property, and photocatalytic activity of g‐C3N4/WEP (x‐CN/WEP) composites were investigated by salt spray test, electrochemical impedance spectroscopy, and RhB degradation experiments. 2‐CN/WEP coating with the addition of 2% g‐C3N4 displayed the optimum mechanical property, water resistance, anti‐permeation, anti‐corrosion, and anti‐aging performance. The anti‐corrosion mechanisms of x‐CN/WEP composite coating were also summarized, which consists in the formation of chemical bonds between g‐C3N4 and WEP, uniform distribution of g‐C3N4 in WEP, and the photocatalytic performance of g‐C3N4.

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Polyaniline/g-C3N4 composites as novel media for anticorrosion coatings

Cited by 33 publications

References 23 publications

Polymer Nanocomposite‐based Coatings for Corrosion Protection

Polymer Nanocomposite‐based Coatings for Corrosion Protection

Developing a new method for synthesizing amine functionalized g-C3N4 nanosheets for application as anti-corrosion nanofiller in epoxy coatings

Enhanced anti‐aging and anti‐corrosion performance of waterborne epoxy coating layers over the dual effects of g‐C₃N₄ photocatalysis

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Polyaniline/g-C3N4 composites as novel media for anticorrosion coatings

Cited by 33 publications

References 23 publications

Polymer Nanocomposite‐based Coatings for Corrosion Protection

Polymer Nanocomposite‐based Coatings for Corrosion Protection

Developing a new method for synthesizing amine functionalized g-C3N4 nanosheets for application as anti-corrosion nanofiller in epoxy coatings

Enhanced anti‐aging and anti‐corrosion performance of waterborne epoxy coating layers over the dual effects of g‐C3N4 photocatalysis

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Product

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Enhanced anti‐aging and anti‐corrosion performance of waterborne epoxy coating layers over the dual effects of g‐C₃N₄ photocatalysis