The role of graphene loading on the corrosion-promotion activity of graphene/epoxy nanocomposite coatings

Sun, Wen; Wu, Tingting; Wang, Lida; Yang, Zhong-Jian; Zhu, Tianzhen; Dong, C.; Liu, Guichang

doi:10.1016/j.compositesb.2019.106916

Cited by 84 publications

(26 citation statements)

References 58 publications

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“…The rate of corrosion could be accelerated with time because the galvanic couple formed between the conductive graphene and metal substrate would lead to galvanic corrosion at the damaged areas of graphene. [ 19,20 ]…”

Section: Introductionmentioning

confidence: 99%

Growth of NiAl‐Layered Double Hydroxide on Graphene toward Excellent Anticorrosive Microwave Absorption Application

et al. 2021

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High‐performance microwave absorbers with special features are desired to meet the requirements of more complex modern service environments, especially corrosive environments. Therefore, high‐efficiency microwave absorbers with corrosion resistance should be developed urgently. Herein, a 3D NiAl‐layered double hydroxide/graphene (NiAl‐LDH/G) composite synthesized by atomic‐layer‐deposition‐assisted in situ growth is presented as an anticorrosive microwave absorber. The content of NiAl‐LDH in the composite is optimized to achieve impedance matching. Furthermore, under the cooperative effects of the interface polarization loss, conduction loss, and 3D porous sandwich‐like structure, the optimal NiAl‐LDH/G shows excellent microwave absorption performance with a minimum reflection loss of −41.5 dB and a maximum effective absorption bandwidth of 4.4 GHz at a loading of only 7 wt% in epoxy. Remarkably, the encapsulation effect of NiAl‐LDH can restrain the galvanic corrosion owing to graphene. The epoxy coating with the NiAl‐LDH/G microwave absorber on carbon steel exhibits long‐term corrosion resistance, owing to the synergetic effect of the superior impermeability of graphene and the chloridion‐capture capacity of the NiAl‐LDH. The NiAl‐LDH/G composite is a promising anticorrosive microwave absorber, and the findings of this study may motivate the development of functional microwave absorbers that meet the demands of anticorrosive performance of coatings.

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Section: Introductionmentioning

confidence: 99%

Growth of NiAl‐Layered Double Hydroxide on Graphene toward Excellent Anticorrosive Microwave Absorption Application

et al. 2021

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“…Higher than 0.1wt.% of graphene embedded in the epoxy coatings accelerated the corrosion near the area of mechanical damages. [204] Besides, the functionalization of graphene surface by doping heteroatoms is an effective method. The polymer nanocomposite coatings modified by Fdoped graphene have been used for long-term anticorrosion.…”

Section: Graphene and Its Derivativesmentioning

confidence: 99%

“…also found that the 0.1wt.% dosage of graphene was the percolation threshold (critical value) for graphene/polymer nanocomposite coating. Higher than 0.1wt.% of graphene embedded in the epoxy coatings accelerated the corrosion near the area of mechanical damages [204] . Besides, the functionalization of graphene surface by doping heteroatoms is an effective method.…”

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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“…Graphene, a promising two-dimensional (2D) nanosheet with only one-atom thickness, has a series of preeminent characteristics, such as high barrier performance, good mechanical properties, outstanding thermal stability and high chemical stability. 11–14 At present, it has received increasing attention in the field of anticorrosion coatings for ultralight metals, and it has been used in waterborne anticorrosion coatings to enhance anticorrosion performance. 15,16 However, graphene is not easy to disperse in water due to its high surface area, strong van der Waals forces, and intrinsic hydrophobicity.…”

Section: Introductionmentioning

confidence: 99%

Green modification of graphene dispersion with high nanosheet content, good dispersibility, and long storage stability

Jiang

Gao

et al. 2022

RSC Adv.

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The role of graphene loading on the corrosion-promotion activity of graphene/epoxy nanocomposite coatings

Cited by 84 publications

References 58 publications

Growth of NiAl‐Layered Double Hydroxide on Graphene toward Excellent Anticorrosive Microwave Absorption Application

Growth of NiAl‐Layered Double Hydroxide on Graphene toward Excellent Anticorrosive Microwave Absorption Application

Polymer Nanocomposite‐based Coatings for Corrosion Protection

Green modification of graphene dispersion with high nanosheet content, good dispersibility, and long storage stability

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