Organic-inorganic in-situ hybrid aluminum dihydrogen phosphate binder for enhancing tribocorrosion resistance of ceramic coatings

Wang, Jianyu; Wu, Mei‐Hwan; Miao, Xiaojin; Wang, Yiyao; Bian, Da; Zhao, Yongwu

doi:10.1016/j.colsurfa.2022.130765

Cited by 13 publications

(2 citation statements)

References 42 publications

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“…The addition of UF shells and microcapsules cannot change the phase composition of the coating, and the main generating phase of the phosphate ceramic coating is AlPO 4 with an excellent binding ability. This result is consistent with our previous study …”

Section: Resultssupporting

confidence: 94%

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In Situ Polymerized Self-Healing Microcapsules as Multifunctional Fillers toward Phosphate Ceramic Coatings

Wang,

Wu,

Huang

et al. 2024

ACS Appl. Mater. Interfaces

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The protective efficacy of chemically bonded phosphate ceramic coatings (CBPC) is notably diminished owing to the presence of micropores and inadequate self-healing capacity in prolonged corrosive environments. Consequently, it is imperative to augment the corrosion and wear resistance of phosphate ceramic coatings while imbuing them with self-healing capabilities. In this work, a novel self-healing phosphate ceramic coating (MC-PT x @CBPC, x = 0.5, 1.0, 1.5) is designed by ureaformaldehyde (UF) in situ polymerization of nanoscale microcapsules encapsulated with 1H,1H,2H,2H-perfluorodecyltriethoxysilane (PFDTES) and evaluated in detail for corrosion and wear resistance. The corrosion inhibition efficiencies of all formulated MC-PT x @CBPC (x = 0.5, 1.0, 1.5) coatings exceed 90%, with the impedance modulus at the lowest frequency (| Z| f=0.01 ) showing enhancements of 1−2 orders of magnitude compared to pure CBPC. Moreover, the self-healing function becomes active during prolonged immersion. This can be primarily ascribed to the formation of a unique micronanostructure facilitated by nanoscale microcapsules and micrometer-sized alumina ceramics, bonded via the AlPO 4 phase. This structure enhances both the hydrophobicity and the bonding strength of the coating. Specifically, following prolonged immersion, the encapsulated PFDTES is liberated from the microcapsules, undergoing hydrolysis and subsequent polymerization upon contact with the electrolyte to form a protective thin film. This film efficiently obstructs the ingress of corrosive agents. Furthermore, the special micronanostructure enhances the hardness of the coating and the releasing PFDTES can form a lubricating film at the interface of abrasion, thus reducing the wear rate and friction coefficient of the MC-PT x @CBPC (x = 0.5, 1.0, 1.5). Therefore, MC-PT x @CBPC (x = 0.5, 1.0, 1.5) possesses excellent corrosion protection, tribological properties, and self-healing capabilities, which provide thought-provoking ideas for phosphate ceramic coatings to protect metals in harsh environments.

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Section: Resultssupporting

confidence: 94%

“…This result is consistent with our previous study. 47 The SEM images of the phosphate ceramic coatings are displayed in Figure 4. As can be seen in Figure 4a, the pure Figure 5a illustrates the hardness of the phosphate ceramic coating.…”

Section: Phase Morphology Hardness Bonding Strength and Wettability O...mentioning

confidence: 99%

In Situ Polymerized Self-Healing Microcapsules as Multifunctional Fillers toward Phosphate Ceramic Coatings

Wang,

Wu,

Huang

et al. 2024

ACS Appl. Mater. Interfaces

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Characterization and microstructure of iron-chromite reinforced aluminum matrix composites produced through recrystallization process

Tarno,

Masuri,

Ariff

et al. 2024

Comprehensive Materials Processing

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The formation and adsorption mechanism studies of 3D hydrangea-like ZnFe-LDHs/FeOOH for the highly efficient removal of phosphate

Tang,

Chen,

et al. 2024

Chemical Engineering Journal

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Organic-inorganic in-situ hybrid aluminum dihydrogen phosphate binder for enhancing tribocorrosion resistance of ceramic coatings

Cited by 13 publications

References 42 publications

In Situ Polymerized Self-Healing Microcapsules as Multifunctional Fillers toward Phosphate Ceramic Coatings

In Situ Polymerized Self-Healing Microcapsules as Multifunctional Fillers toward Phosphate Ceramic Coatings

Characterization and microstructure of iron-chromite reinforced aluminum matrix composites produced through recrystallization process

The formation and adsorption mechanism studies of 3D hydrangea-like ZnFe-LDHs/FeOOH for the highly efficient removal of phosphate

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