Mussel-inspired preparation of superhydrophobic mica nanosheets for long-term anticorrosion and self-healing performance of epoxy coatings

Xiao, Xinzhe; Ye, Zequan; Meng, Guozhe; Gu, Lin

doi:10.1016/j.porgcoat.2023.107456

Cited by 13 publications

(5 citation statements)

References 47 publications

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“…Xiao et al [38] MNs surfaces can be made superhydrophobic by interacting them with natural laccase phenol (Ur) catechol groups.…”

Section: Study Findingsmentioning

confidence: 99%

Performance Research of Natural Mica Modified with Zirconium-Based Metal–Organic Frameworks for an Epoxy Resin Anti-Corrosion Coating

Zhu,

Feng,

Peng

et al. 2023

Molecules

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A new composite material made from mica and a metal–organic framework (MOF) has been developed to improve the anticorrosive capabilities of epoxy resin coatings. The layered mica was loaded with denser and more uniform UIO-66 nanoparticles after modifying the composite with polyethyleneimine (PEI). The composites were used as fillers to prepare epoxy coatings that exhibited long-lasting active (labyrinth effect produced by mica) and passive (pH-sensitive release of corrosion inhibitors) corrosion protection. Settling experiments showed that polyethyleneimine improved the composites’ compatibility in epoxy resin. After being immersed in a 3.5 wt.% NaCl solution for 60 days, the adhesion of PMC–UIO@MBT/EP increases to 9.01 MPa, while the water absorption rate only reaches 2.57%. It indicates that the coating has good barrier properties and stability. After being soaked in a 3.5 wt.% NaCl solution for 60 days at pH = 7, PMC–UIO@MBT/EP exhibits high low-frequency impedance (8.30 × 108 Ω), as demonstrated by the electronic impedance spectrum (EIS). In addition, the coating also exhibited the highest low-frequency impedance after 30 days in 3.5 wt.% NaCl solution at pH = 11.

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“…Xiao et al [38] MNs surfaces can be made superhydrophobic by interacting them with natural laccase phenol (Ur) catechol groups.…”

Section: Study Findingsmentioning

confidence: 99%

Performance Research of Natural Mica Modified with Zirconium-Based Metal–Organic Frameworks for an Epoxy Resin Anti-Corrosion Coating

Zhu,

Feng,

Peng

et al. 2023

Molecules

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“…Moreover, it can be easily exfoliated into 2D nanosheets. Like other types of nanosheets, mica nanosheets (MNs) possess excellent resistance to permeation and high temperatures, making them ideal candidates for use in the development of large−scale anticorrosive coatings [15,16]. In contrast to graphene, MNs are considered insulating materials that can effectively prevent microcurrent reactions that accelerate metal corrosion when the coating is destroyed [17].…”

Section: Introductionmentioning

confidence: 99%

Facile preparation of hydroxyl−functionalized mica nanosheets assisted by plasma treatment

Xiao

Liu

et al. 2023

Nano Ex.

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The efficient exfoliation of mica, a naturally layered material, into two-dimensional (2D) nanosheets has received much attention due to its low price, good chemical stability, and better shielding function against UV light. However, fast and simple exfoliation of mica in a large-scale face a great challenge. In this work, we developed a simple and effective method for obtaining OH−functionalized mica nanosheets (MNs). The process involved calcination, plasma treatment, and ultrasonic exfoliation, resulting in a yield of 7.535%. Furthermore, the effects of sonication time, solvent type, and particle sizes of mica were investigated. The conditions for the preparation of MNs were determined: mica calcination, plasma treatment, and sonication in ethanol for 5 h. XPS and FT−IR demonstrated that more hydroxyl groups were introduced to mica after the plasma treatment, which facilitated the exfoliation of mica.

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“…The dopamine (DA) in the mussel adhesive protein has excellent adhesion properties and it is the catechol group within it that provides the key role. [16,17] The covalent grafting of catechol groups onto existing polymers will significantly expand the surface modification design and application space. Here, we investigated a polymeric anticorrosive coating containing catechol moieties with fast healing ability.…”

Section: Introductionmentioning

confidence: 99%

Mussel‐inspired Self‐assembly into Polymer Coatings of Different Molecular Weight Electrolytes for Enhanced Self‐healing and Corrosion Properties

Zhang

Sheng

et al. 2023

Chemistry An Asian Journal

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Self‐healing coatings offer tremendous application prospects in the field of preventing metal corrosion because of their superior functionality. The coordination of barrier performance and self‐healing ability, however, continues to be difficult. Herein, a polymer coating based on polyethyleneimine (PEI) and polyacrylic acid (PAA) with self‐repairing and barrier ability was designed. Introducing the catechol group into the anti‐corrosion coating increases the adhesion and self‐healing efficiency of the coating, providing a guarantee for the long‐term stable bonding between the anti‐corrosion coating and the metal substrate. Small molecular weight PAA polymers are added to polymer coatings to increase their self‐healing capabilities and corrosion resistance. Because layer‐by‐layer assembly creates reversible hydrogen bonds and electrostatic bonds that help the coating repair itself when it is damaged, and because the traction of small molecular weight polyacrylic acid speeds up this process. When polyacrylic acid (PAA) with a molecular weight of 2000 was present in the coating at a concentration of 1.5 mg/mL. The PEI‐C/PAA45W‐PAA2000 coating has the fastest self‐healing, and the corrosion resistance efficiency (Pe) was as high as 90.1%. The polarization resistance (Rp) was maintained at 7.67×104 Ω∙cm2 after immersion for more than 240 h. It was better than other samples in this work.

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Mussel-inspired preparation of superhydrophobic mica nanosheets for long-term anticorrosion and self-healing performance of epoxy coatings

Cited by 13 publications

References 47 publications

Performance Research of Natural Mica Modified with Zirconium-Based Metal–Organic Frameworks for an Epoxy Resin Anti-Corrosion Coating

Performance Research of Natural Mica Modified with Zirconium-Based Metal–Organic Frameworks for an Epoxy Resin Anti-Corrosion Coating

Facile preparation of hydroxyl−functionalized mica nanosheets assisted by plasma treatment

Mussel‐inspired Self‐assembly into Polymer Coatings of Different Molecular Weight Electrolytes for Enhanced Self‐healing and Corrosion Properties

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