Study on the stability of plasma-polymerized fluorocarbon ultra-thin coatings on stainless steel in water

Touzin, Maryse; Chevallier, Pascale; Lewis, François; Turgeon, Stéphane; Holvoet, Servaas; Laroche, Gaétan

doi:10.1016/j.surfcoat.2008.04.088

Cited by 35 publications

(29 citation statements)

References 36 publications

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“…In order to simulate the influence of rainwater on a superhydrophobic coating, the surfaces are immersed in various pH solutions [95,97,[100][101][102][103][104][105]. Momen et al [95] studied the stability of the surfaces spray-coated with silicone rubber/ZnO/SiC>2 composites after immersion in different pHs (4, 6, 7 and 10) in order to simulate rainwater conditions.…”

Section: Ii-5-2-effect Of Different Phmentioning

confidence: 99%

“…The researchers concluded that the surfaces keep their superhydrophobic properties after immersion in pH solutions, except for the sample immersed in tap water, due to ionic Touzin et al [105] showed the reduction of hydrophobic properties of plasma- Furthermore, the topography of these surfaces was analyzed by AFM analysis before and after each week. The results show (Figure 11.27) that the roughness of the surface before immersion in water was around 0.8 nm.…”

Section: Ii-5-2-effect Of Different Phmentioning

confidence: 99%

“…Variation of contact angles for the different plasma precursors deposited a) FAS-3, b) FAS-13, and c) FAS-17 [66] 29 Figure 11.15: AFM Images of a) untreated silicon wafer, b) PP-HMDSO coating deposited at 30 sec deposition and c) PP-HMDSO film at 5 min deposition [77]..... 32 Figure 11.16: Advancing and receding contact angle of PP-HMDSO film at different deposition times on a) wafer silicon b) polyethylene [77] 33 Figure 11.17: Contact angle of PP-Hexafluoropropylene coating on poly(vinyl chloride) tube as a function of deposition time [64] 34 Figure 11.18: FT-IR spectra of PP-HMDSO films deposited with different monomer concentrations (discharge power 9.5 W, film thickness 700 nm) [89] 35 Figure 11.19: SEM images of the coatings at a) 1, b) 3, c) 5, d) 8, e) 11, and f) 18 cm from the gas inlet [73] .....36 Figure 11.20: Static, advancing, and receding contact angle vs. axial position of samples from the gas inlet [73] • ..37 [95]. ...43 Figure 11.26: X-ray photoelectron spectroscopy F/C ratio of plasma-polymerized fluorocarbon coatings deposited on stainless steel as a function of immersion time in distilled water [105] 44 Figure 11.27: Atomic force microscopy images 2^2 (im 2 of plasma-polymerized thin coating after: (a) 0 week, (b) 1 week, (c) 2 weeks, (d) 3 weeks and (e) 4 weeks of ageing in D.I. water [105] 45 Figure 11.28: Potentiodynamic polarization curves of untreated, anodized and super hydrophobic samples for 24 h in sterile seawater at 2mV/s [106] ......…”

mentioning

confidence: 99%

“…...43 Figure 11.26: X-ray photoelectron spectroscopy F/C ratio of plasma-polymerized fluorocarbon coatings deposited on stainless steel as a function of immersion time in distilled water [105] 44 Figure 11.27: Atomic force microscopy images 2^2 (im 2 of plasma-polymerized thin coating after: (a) 0 week, (b) 1 week, (c) 2 weeks, (d) 3 weeks and (e) 4 weeks of ageing in D.I. water [105] 45 Figure 11.28: Potentiodynamic polarization curves of untreated, anodized and super hydrophobic samples for 24 h in sterile seawater at 2mV/s [106] ...... LIST OF TABLES icephobic coating on the outdoor surface structure [5].…”

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Development of nano-structured icephobic surfaces based on plasma polymerization /

Mobarakeh¹

2014

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Accumulated ice on exposed surfaces leads to operational difficulties and extensive maintenance for power transmission lines, antennas, aircraft, ships, and ground transportation vehicles.In the present study, the low pressure plasma polymerized Hexamethyldisiloxane (PP-HMDSO) film is deposited on aluminum surfaces to create a superhydrophobic coating with icephobic properties. Prior to the deposition of this low surface energy coating, aluminum surfaces were anodized or immersed in boiling water to make micro/nano structured surfaces.Plasma parameters were optimized in order to find the best optimum conditions for having high static contact angle and low contact angle hysteresis. Hence, the Grey-based Taguchi method was used as one of the Design of Experiment (DOE) techniques. The stability of coatings was studied under accelerated aging conditions such as UV degradation, immersion in distilled water and different pH solutions, and several icing/deicing cycles. It was observed that the PP-HMDSO coatings are quite stable against UV exposure and immersion in distilled water. However, the icephobicity of the PP-HMDSO coating deposited on the anodized aluminum decreased after fifteen icing/de-icing cycles.The stability of the developed coating was improved against several icing/de-icing cycles by increasing the deposition time of plasma polymerized coating from 15 to 25 minutes. The results showed that increasing the deposition time of plasma polymerization leads to decrease of the ice adhesion strength of coatings on anodized aluminum while it has no significant effect on the PP-HMDSO coating deposited on a water-treated aluminum surface. Finally, the superhydrophobic PP-HMDSO coating also provides anti-corrosion protection for the aluminum substrate.

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Section: Ii-5-2-effect Of Different Phmentioning

confidence: 99%

Section: Ii-5-2-effect Of Different Phmentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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Development of nano-structured icephobic surfaces based on plasma polymerization /

Mobarakeh¹

2014

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“…The samples were inserted in a custom-made sample holder made of high density polyethylene as previously described. 58 Only the coated surfaces were exposed to the deionized water. Sample holders and deionized water were previously sterilized by autoclave in order to prevent bacterial contamination.…”

Section: Aging Testsmentioning

confidence: 99%

Influence of the 316 L Stainless Steel Interface on the Stability and Barrier Properties of Plasma Fluorocarbon Films

Lewis

Cloutier

Chevallier

et al. 2011

ACS Appl. Mater. Interfaces

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Coatings are known to be one of the more suited strategies to tailor the interface between medical devices and the surrounding cells and tissues once implanted. The development of coatings and the optimization of their adhesion and stability are of major importance. In this work, the influence of plasma etching of the substrate on a plasma fluorocarbon ultrathin coating has been investigated with the aim of improving the stability and the corrosion properties of coated medical devices. The 316 L stainless steel interface was subjected to two different etching sequences prior to the plasma deposition. These plasma etchings, with H(2) and C(2)F(6) as gas precursors, modified the chemical composition and the thickness of the oxide layer and influenced the subsequent polymerization. The coating properties were evaluated using flat substrates submitted to deformation, aging into aqueous medium and corrosion tests. X-ray photoelectron spectroscopy (XPS), time of flight-secondary ion mass spectrometry (ToF-SIMS), ellipsometry, and atomic force microscopy (AFM) were performed to determine the effects of the deformation and the aging on the chemistry and morphology of the coated samples. Analyses showed that plasma etchings were essential to promote reproducible polymerization and film growth. However, the oxide layer thinning due to the etching lowered the corrosion resistance of the substrate and affected the stability of the interface. Still, the deformed samples did not exhibited adhesion and cohesion failure before and after the aging.

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Annealing and ultraviolet treatment of plasma fluorocarbon films for enhanced cohesion and stability

Chevallier¹,

Holvoet²,

Turgeon³

et al. 2010

J of Applied Polymer Sci

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Stents, commonly used for the treatment of cardiovascular diseases, are mainly made of 316L stainless steel. They are, however, prone to corrosion when they are in contact with human body fluid. To prevent this corrosion process and to ameliorate their patencies, in this study, we used a strategy to cover stent materials with a protective fluorocarbon layer deposited by plasma polymerization. In an approach to optimize its cohesion properties and stability, posttreatments, namely, thermal annealing and UV irradiation, were applied on the ultrathin fluorocarbon film. A combination of X-ray photoelectron spectroscopy, polarized near-edge X-ray absorption fine-structure spectroscopy, and time-of-flight secondary ion mass spectrometry demonstrated that UV treatment led to chain scission and film crosslinking and, in this way, decreased the amount and/or size of nanoscaled defects originally present in the films. Annealing on the other hand induced a film reorganization in favor of longer, well-ordered fluorocarbon chains. However, a deformation process that was applied to study the film adhesion properties induced chain scissions with reorganization. Aging tests exhibited an oxidation of the topmost layer for both the as-deposited and posttreated samples. Finally, the film stability was improved after UV treatment for both the nondeformed and deformed samples.

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Study on the stability of plasma-polymerized fluorocarbon ultra-thin coatings on stainless steel in water

Cited by 35 publications

References 36 publications

Development of nano-structured icephobic surfaces based on plasma polymerization /

Development of nano-structured icephobic surfaces based on plasma polymerization /

Influence of the 316 L Stainless Steel Interface on the Stability and Barrier Properties of Plasma Fluorocarbon Films

Annealing and ultraviolet treatment of plasma fluorocarbon films for enhanced cohesion and stability

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