Self-repairing and anti-fouling performance of anticorrosive coating in marine environment

Wu, Xiaomao; Yang, Chao; Wu, Lingli; Zhang, Chuchu; Chen, Gan; Xin, Yanping

doi:10.1016/j.polymertesting.2023.108090

Cited by 8 publications

(3 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast, for MC-NH 2 , its addition in the coating delayed the time of appearance of corrosion to 12 days, which was much later compared with that of pure resin coating, demonstrating the significantly enhanced anticorrosive properties of the coating. When the coating was added with MC-Ep, the time required for the coating to start corroding was further prolonged to 20 d. The reason was that the uniformly dispersed epoxy-modified microcapsules could fill the micropores in the coating, increase the cross-linking density, and thus prolong the diffusion path of the corrosive medium in the coating. , Therefore, MC-Ep was selected for the preparation of self-healing coatings in subsequent experiments.…”

Section: Resultsmentioning

confidence: 99%

“…When the coating was added with MC-Ep, the time required for the coating to start corroding was further prolonged to 20 d. The reason was that the uniformly dispersed epoxy-modified microcapsules could fill the micropores in the coating, increase the cross-linking density, and thus prolong the diffusion path of the corrosive medium in the coating. 33,34 Therefore, MC-Ep was selected for the preparation of self-healing coatings in subsequent experiments.…”

Section: Coating Propertiesmentioning

confidence: 99%

See 1 more Smart Citation

One-Step Synthesis of Functionalized Microcapsules with Excellent Dispersibility for Efficient Self-Healing and Anticorrosion Coatings

Chen,

Zhang,

et al. 2024

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The practical application of self-healing coatings relies on the uniform dispersion of microcapsules within the coating matrix. In this study, a novel approach was employed to synthesize microcapsules that were functionalized with hydroxyl, amino, and epoxy groups through a combination of intraemulsion droplet phase separation and photopolymerization. Microcapsule formation and shell modification were achieved in a one-pot process, which proved to be more efficient and simpler compared to other established synthesis methods. The effects of functional groups (hydroxyl, amino, and epoxy groups) and modification degrees on the dispersibility of microcapsules and the coating properties were investigated. The results showed that the epoxy-modified microcapsules possessed the best dispersibility in the UV-cured coating matrix among the three functionalized microcapsules, and the dispersibility of the microcapsules became better with the increase of the epoxy-modified degree. The improved dispersibility of microcapsules led to a significant improvement in the self-healing and anticorrosion properties of the coatings. The pure coating showed significant corrosion after only 4 days of salt spray testing, while the coating with MC-Ep showed no corrosion after 20 days of salt spray testing. Furthermore, the prepared coatings demonstrated reliable and effective self-healing properties, which could significantly extend the coatings' service life. This study provides a novel, efficient, and feasible strategy for the synthesis of functionalized microcapsules and their incorporation into coatings. The findings offer valuable insights into the development of advanced self-healing and anticorrosive coatings that hold great promise for various industrial applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Coating Propertiesmentioning

confidence: 99%

One-Step Synthesis of Functionalized Microcapsules with Excellent Dispersibility for Efficient Self-Healing and Anticorrosion Coatings

Chen,

Zhang,

et al. 2024

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…3D profile changes of the F-DN coating’s wound over healing time, (a) the initial F-DN coating, (b) the F-DN coating after deliberate damage, (c) the F-DN coating post 10 min of healing, (d) the F-DN coating post 20 min of healing, (e) the F-DN coating post 30 min of healing, (f) the F-DN coating post 40 min of healing, (g) the F-DN coating post 50 min of healing, (h) the F-DN coating post 60 min of healing, (i) the cross-sectional profile curve of the F-DN coating scratch as a function of healing time, (j) the curve depicting the change in maximum volume of the F-DN coating scratch over the healing period. (k) The comparison focuses on the repair efficiency and maximum scratch width that can be restored between the F-DN coating and the currently available intelligent anti-corrosion coatings. − …”

Section: Resultsmentioning

confidence: 99%

A Super-Adhesive 2D Diamond Smart Nanofluid with Self-Healing Properties and Multifunctional Applications

Wu,

Yu,

Jiao

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Smart responsive materials are capable of responding to external stimuli and, compared to traditional materials, can be effectively reused and reduce usage costs in applications. However, smart responsive materials often face challenges such as the inability to repair extensive damage, instability in long-term performance, and inapplicability in extreme environments. This study combines 2D diamond nanosheets with organic fluorinated molecules to prepare a smart nanofluid (fluorinated diamond nanosheets, F-DN) with selfhealing and self-adhesion properties. This smart nanofluid can be used to design various coatings for different applications. For example, coatings prepared on textured steel plates using the drop-casting method have excellent superhydrophobic and high oleophobic properties; coatings on titanium alloy plates achieve low friction and wear in the presence of lubricating additives of F-DN in perfluoropolyether (PFPE). Most impressively, coatings on steel plates not only provide effective corrosion resistance but also have the ability to self-heal significant damage (approximately 2 mm in width), withstand extremely low temperatures (−64 °C), and resist long-term corrosion factors (immersion in 3.5 wt % NaCl solution for 35 days). Additionally, it can act as a "coating glue" to repair extensive damage to other corrosion-resistant organic coatings and recover their original protective properties. Therefore, the smart nanofluid developed in this study offers diverse applications and presents new materials system for the future development of smart responsive materials.

show abstract

Rapid Self‐Healing of Robust Surface‐Tethered Covalent Adaptable Coatings

Capets,

Yost,

Vogt

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

The incorporation of self‐healing properties to repair scratches (or other minor damage) has revolutionized the coating industry by increasing service life, sustainability, and optical appearance. This work addresses challenges with the robustness of self‐healing coatings through the inclusion of surface‐tethered covalently adaptable networks (CANs). Surface‐initiated polymerization is combined with spray‐coating to deposit polymers to produce coatings with reversible crosslinks to the tethered chains. These robust coatings are based on reversible vinylogous urethane bonds using 2‐(acetoacetoxy)ethyl methacrylate‐based polymers and tris(2‐aminoethyl) amine (TREN). Here, TREN enables reversible covalent bonding between the spray‐coated and surface‐tethered polymers. Without this polymer brush layer, the physisorbed CAN coatings fail to self‐heal completely, are labile to solvent, and exhibit shear delamination upon scratching. The utility of this tethered coating approach is highlighted through its ability to autonomously self‐heal incisions within seconds at elevated temperatures, or more steadily under ambient conditions. The key to these advancements is the use of polymer brushes as a primer layer to attach the CAN to enhance healing and improve the environmental robustness of the coating.

show abstract

Self-repairing and anti-fouling performance of anticorrosive coating in marine environment

Cited by 8 publications

References 30 publications

One-Step Synthesis of Functionalized Microcapsules with Excellent Dispersibility for Efficient Self-Healing and Anticorrosion Coatings

One-Step Synthesis of Functionalized Microcapsules with Excellent Dispersibility for Efficient Self-Healing and Anticorrosion Coatings

A Super-Adhesive 2D Diamond Smart Nanofluid with Self-Healing Properties and Multifunctional Applications

Rapid Self‐Healing of Robust Surface‐Tethered Covalent Adaptable Coatings

Contact Info

Product

Resources

About