A contrastive investigation on anticorrosive performance of laser-induced super-hydrophobic and oil-infused slippery coatings

Yang, Zhen; Liu, Xianping; Tian, Yanling

doi:10.1016/j.porgcoat.2019.105313

Cited by 33 publications

(28 citation statements)

References 52 publications

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“…(f) Variation of surface temperature of the SMP/PF-POS@MWCNTs coating with irradiation time under different sunlight intensity. (g) Low-frequency impedance modulus of the SMP/PF-POS@MWCNTs coating and the recently reported superhydrophobic anticorrosion coatings. − …”

Section: Resultsmentioning

confidence: 99%

Superhydrophobic Coatings with Photothermal Self-Healing Chemical Composition and Microstructure for Efficient Corrosion Protection of Magnesium Alloy

et al. 2021

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Self-healing superhydrophobic coatings have a wide potential for practical applications by prolonging their lifespan, but still suffer from some shortcomings, for example, difficulty in repairing microstructure damage, limited self-healing cycles, and more importantly the inability to self-heal while in service. Herein, we present the fabrication of superhydrophobic coatings having photothermal self-healing chemical composition and microstructure for the high performance anticorrosion of Mg alloy. The coatings contain a shape-memory polymer (SMP) primer and an upper superhydrophobic coating composed of fluorinated polysiloxane-modified multiwalled carbon nanotubes (PF-POS@MWCNTs). The coatings have good superhydrophobicity, photothermal effect, and anticorrosion performance. The coatings show excellent self-healing performance in response to chemical and microstructure damage, such as rapid self-healing under 1 sun irradiation in 10 min, complete self-healing after serious damage (e.g., 10 damage and self-healing cycles and complex microstructure damage), and even self-healing under natural sunlight in 4 h. Moreover, the self-healed coatings show good corrosion protection for magnesium alloy in the neutral salt spray test. These are because of the combination of the SMP primer with good shape-memory effect and the PF-POS@MWCNTs coating with good superhydrophobicity, photothermal effect, and embedded PF-POS. The coatings are self-healable under natural sunlight while in service and thus may find applications in diverse fields.

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Section: Resultsmentioning

confidence: 99%

Superhydrophobic Coatings with Photothermal Self-Healing Chemical Composition and Microstructure for Efficient Corrosion Protection of Magnesium Alloy

et al. 2021

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“…As examples of these approaches, here we would like to mention the modification of the magnesium surface by sol-gel precoatings [5], anodization followed by different postanodization treatments [6], cold spray layers [7], various conversion coatings [5][6][7][8] including Mg-Al layered double hydroxide, hydroxide, and magnesium phosphate layers. Particular attention was paid to the application of the water-repelling coatings, such as superhydrophobic or slippery liquid-infused porous coatings, to protect the magnesium coatings against electrolytic and microbiologically induced corrosion [12][13][14][15][16][17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

The Potential of the Superhydrophobic State to Protect Magnesium Alloy against Corrosion

et al. 2022

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We describe the technologically simple route for the fabrication of the superhydrophobic coatings on top of wrought magnesium alloy MA8 based on nanosecond laser processing followed by the chemical vapor deposition of fluorosilane. The chemical and phase composition, surface morphologies, and variation of the coating wettability during prolonged contact with 0.5 NaCl solution or with salt aerosol were characterized using X-ray diffraction, FT-IR spectroscopy, scanning electron microscopy measurements, and the wettability analysis. The as-prepared coatings demonstrate corrosion current of more than eight orders of magnitude lower, while after 30 days of sample immersion into corrosive solution, the current was four orders of magnitude lower than that obtained for a polished sample which was for only 2 h in contact with electrolyte. The mechanisms of the protective activity of fabricated coatings were discussed.

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“…According to previous researches, structuring rough surfaces with micro-nano structures and lowering surface energy have been summarized as the two methods to successfully fabricate super-hydrophobic surfaces [13,14] . Varied methods to structure requisite micro-nano structures have been proposed, including electrodeposition, self-assembly, chemical etching, electrospinning, sol-gel, anodizing, and spin coating [15][16][17][18][19][20] . The aforesaid processing approaches show poor practicability with respect to environmental pollution or high cost.…”

Section: Introductionmentioning

confidence: 99%

The Study on the Anti-corrosion Performance of NiTi Alloy in Human Body Solution with the Fabricating Processes of Laser Irradiation and PDMS Modification

et al. 2021

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This paper presents a new and safe method of fabricating super-hydrophobic surface on NiTi Shape Memory Alloy (SMA), which aims to further improve the corrosion resistance performance and biocompatibility of NiTi SMA. The super-hydrophobic surfaces with Water Contact Angle (WCA) of 155.4° ± 0.9° and Water Sliding Angle (WSA) of 4.4° ± 1.1° were obtained by the hybrid of laser irradiation and polydimethylsiloxane (PDMS) modification. The forming mechanism was systematically revealed via Scanning Electron Microscopy (SEM) and X-ray Photoelectron Spectroscopy (XPS). The anti-corrosion of samples was investigated in Simulated Body Fluid (SBF) via the potentiodynamic polarization (PDP) and Electrochemical Impedance Spectroscopy (EIS) tests. PDMS super-hydrophobic coatings showed superior anti-corrosion performance. The Ni ions release experiment was also conducted and the corresponding result demonstrated that the super-hydrophobic samples effectively inhibited the release of Ni ions both in electrolyte and SBF. Besides, biocompatibility was further analyzed, indicating that the prepared super-hydrophobic surfaces present a huge potential advantage in biocompatibility.

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A contrastive investigation on anticorrosive performance of laser-induced super-hydrophobic and oil-infused slippery coatings

Abstract: Please refer to published version for the most recent bibliographic citation information. If a published version is known of, the repository item page linked to above, will contain details on accessing it.

Cited by 33 publications

References 52 publications

Superhydrophobic Coatings with Photothermal Self-Healing Chemical Composition and Microstructure for Efficient Corrosion Protection of Magnesium Alloy

Superhydrophobic Coatings with Photothermal Self-Healing Chemical Composition and Microstructure for Efficient Corrosion Protection of Magnesium Alloy

The Potential of the Superhydrophobic State to Protect Magnesium Alloy against Corrosion

The Study on the Anti-corrosion Performance of NiTi Alloy in Human Body Solution with the Fabricating Processes of Laser Irradiation and PDMS Modification

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