A mechanically robust superhydrophobic corrosion resistant coating with self-healing capability

Materials & Design, Год журнала: 2024, Номер 240, С. 112881 - 112881

Опубликована: Март 26, 2024

Conferring self-healing capability represents an effective approach for extending the lifespan of multifunctional superhydrophobic coatings. Presently, reported coatings exhibit scratch-healing capabilities ranging from 5 μm to 40 μm. However, achieving large-scale (>100 μm) remains a significant challenge within this research domain. In paper, we introduces design and fabrication dual-layer anti-corrosion coating using polycaprolactone (PCL), EASTMAN Kristalex 3085 resin (EK), epoxy (EP), 1H, 2H, 2H-perfluorodecyltriethoxysilane (PFDTES) modified silica particles via facile spray-coating approach. The surface morphology, chemical composition, wettability, self-cleaning, damage-healing, behaviors were thoroughly evaluated. Results demonstrate that exhibits across multiple scratch-damage scales (45 μm, 55 100 μm), particularly exhibiting superior ability. Furthermore, displays outstanding corrosion resistance, with charge transfer resistance (Rct) increasing by nearly 8 orders magnitude compared bare Q235 carbon steel substrate. Although scratch-damaged significantly decreases, scratch-healed is effectively restored its initial state, showcasing excellent sustainability. Additionally, demonstrates remarkable mechanical stability, withstanding 90 sandpaper abrasion cycles 70 tape-peeling cycles.

Язык: Английский

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Gemini cationic surfactant of 1, 3-bis (dodecyl dimethyl ammonium chloride) propane as a novel excellent inhibitor for the corrosion of cold rolled steel in HCl solution

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 677, С. 324 - 345

Опубликована: Июль 31, 2024

Язык: Английский

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Halogenated pyrimidines as promising inhibitors for cold rolled steel in HCl and H2SO4 media: Experiments and theoretical calculations

Corrosion Science, Год журнала: 2025, Номер 246, С. 112724 - 112724

Опубликована: Янв. 21, 2025

Язык: Английский

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Transparent Superhydrophobic and Self-Cleaning Coating

Polymers, Год журнала: 2024, Номер 16(13), С. 1876 - 1876

Опубликована: Июль 1, 2024

Surface roughness and low surface energy are key elements for the artificial preparation of biomimetic superhydrophobic materials. However, presence micro-/nanostructures corresponding increase in can light scattering, thereby reducing transparency. Therefore, designing constructing surfaces that combine superhydrophobicity with high transparency has been a continuous research focus researchers engineers. In this study, transparent coating was constructed on glass substrates using hydrophobic fumed silica (HF-SiO2) waterborne polyurethane (WPU) as raw materials, combined simple spray-coating technique, resulting water contact angle (WCA) 158.7 ± 1.5° sliding (SA) 6.2 1.8°. Characterization tests including SEM, EDS, LSCM, FTIR, XPS revealed micron-scale protrusions nano-scale porous network composite structure surface. The HF-SiO2 not only provided certain but also effectively reduced energy. More importantly, exhibited excellent water-repellent properties, extremely interfacial adhesion, self-cleaning ability, transparency, transmittance coated substrate reaching 96.1% bare substrate. series functional characteristics demonstrated by HF-SiO2@WPU designed study will play an important role various applications such underwater observation windows, building facades, automotive glass, goggles.

Язык: Английский

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Superwetting MAX@SiO2 coatings with high photothermal conversion performances for efficient seawater desalination and anti-/de-icing

Chemical Engineering Journal, Год журнала: 2024, Номер 496, С. 153707 - 153707

Опубликована: Июль 3, 2024

Язык: Английский

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Bilayer coating fabricated on aluminum alloy substrates with superamphiphobicity, corrosion resistance, self-cleaning, and delayed icing properties

Journal of Materials Research and Technology, Год журнала: 2024, Номер 30, С. 8218 - 8227

Опубликована: Май 1, 2024

To address the functional failure caused by low-surface-tension liquid wetting and adhesion in superhydrophobic materials, this study, we constructed a bilayer coating with superamphiphobic properties using an epoxy (Ep) bonding layer organosilane-grafted attapulgite (OG-ATP) through spray-coating technique. The prepared exhibited high contact angles (CAs) low sliding (SAs) for cold water (25°C), hot (85°C), glycerol, ethylene glycol, peanut oil, even n-hexadecane (CA=150.4±0.3° SA=7±2°) surface tension of 27.5 mN·m-1. Surface morphology elemental analysis confirmed coating's unique micro-nano hierarchical structure energy characteristics. Electrochemical impedance spectroscopy (EIS) results showed that charge transfer resistance (Rct) low-frequency modulus (|Z|0.01Hz) were enhanced 6-7 orders magnitude compared to bare aluminum alloy substrate. anti-corrosion performance remained stable after 5 days 3.5 wt.% NaCl immersion. Additionally, icing experiments droplets at -10°C -15°C revealed significant delay ice formation on substrate protected coating. development protective material, combining superamphiphobicity, self-cleaning, corrosion resistance, anti-icing functions, will provide advanced technological reserves areas such as marine, aviation, transportation, manufacturing.

Язык: Английский

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SiC-armoured triple-layered superhydrophobic coating with super-robustness and anti-corrosion durability

Journal of Industrial and Engineering Chemistry, Год журнала: 2024, Номер 139, С. 237 - 249

Опубликована: Май 3, 2024

Язык: Английский

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High-value utilization of invasive plant-Alternanthera philoxeroides extract in corrosion inhibition of aluminum

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2025, Номер unknown, С. 136086 - 136086

Опубликована: Янв. 1, 2025

Язык: Английский

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Engineering in-situ fabrication of omniphobic PVDF membrane for high-performance CO2 capture

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159415 - 159415

Опубликована: Янв. 1, 2025

Язык: Английский

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Facile spray-coated fluorine-free superhydrophobic anti-corrosion and anti-icing coating

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2025, Номер unknown, С. 136515 - 136515

Опубликована: Фев. 1, 2025

Язык: Английский

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