Flow‐Induced Long‐Term Stable Slippery Surfaces

Baumli, Philipp; Teisala, Hannu; Bauer, Hoimar; García-González, Diana; Damle, Viraj; Geyer, Florian; D’Acunzi, Maria; Kaltbeitzel, Anke; Butt, Hans‐Jürgen; Vollmer, Doris

doi:10.1002/advs.201900019

Cited by 39 publications

(37 citation statements)

References 52 publications

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“…Therefore, the SLIPSs with high viscosities of silicone oil (100 and 200 mPa•s) show dramatic increases in ice adhesion strength after 21 de-icing tests. The depletion of lubricant due to evaporation can cause a degradation in slippery performance [32,33]. Herein, we tested the thermal durability of SLIPSs via continuous heating at 90 °C.…”

Section: Durabilitymentioning

confidence: 99%

“…When the viscosity of silicone oil was 50 mPa•s, the SLIPS exhibited the better durability for anti-icing. With time prolonged to 168 h, ice adhesion strength values increased in the order of 50 mPa•s (20.9 kPa) < The depletion of lubricant due to evaporation can cause a degradation in slippery performance [32,33]. Herein, we tested the thermal durability of SLIPSs via continuous heating at 90 • C. The ice adhesion test was measured after storing for different times.…”

Section: Durabilitymentioning

confidence: 99%

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Fabrication of a Porous Slippery Icephobic Surface and Effect of Lubricant Viscosity on Anti-Icing Properties and Durability

et al. 2020

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A breakdown caused by the icing of power generation infrastructure is one of the serious disasters occurring in the power system. Slippery lubricant-infused porous surfaces (SLIPSs), whose ice adhesion strength is extremely low, have a promising application in the anti-icing field. In the present study, we fabricated SLIPSs with low ice adhesion strength by infusing silicone oil into an anodic aluminum oxide (AAO) substrate. In addition, the effects of the viscosity of silicone oil on the anti-icing properties and durability of the SLIPSs were investigated. The results show that a lower viscosity silicone oil brings about more slippery surfaces and lower ice adhesion strength. The ice adhesion strength was reduced by 99.3% in comparison with the bare Al alloy. However, low-viscosity silicone oil has worse de-icing resistance and heat resistance. Additionally, the porous films filled with low-viscosity silicone oil possess a better self-healing property after icing/de-icing cycles and followed by exposure to the atmosphere. When the viscosity of silicone oil is 50 mPa·s, the SLIPSs exhibit the best durability for anti-icing. Even after 21 de-icing tests or 168 h of heating at 90 °C, the ice adhesion strength still remains below 10% compared with that of bare Al. This work provides some useful advice for the design and fabrication of anti-icing SLIPSs.

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Section: Durabilitymentioning

confidence: 99%

Section: Durabilitymentioning

confidence: 99%

Fabrication of a Porous Slippery Icephobic Surface and Effect of Lubricant Viscosity on Anti-Icing Properties and Durability

et al. 2020

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“… 16 − 22 When lubricant-covered ice/frost is removed, lubricant which was sucked into frost interstitials is lost. 7 , 21 Loss of the lubricant leads to increased ice-to-substrate contact and therefore, increased ice adhesion. 7 , 18 …”

Section: Introductionmentioning

confidence: 99%

Capillary Balancing: Designing Frost-Resistant Lubricant-Infused Surfaces

et al. 2020

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Slippery lubricant-infused surfaces (SLIPS) have shown great promise for antifrosting and anti-icing. However, small length scales associated with frost dendrites exert immense capillary suction pressure on the lubricant. This pressure depletes the lubricant film and is detrimental to the functionality of SLIPS. To prevent lubricant depletion, we demonstrate that interstitial spacing in SLIPS needs to be kept below those found in frost dendrites. Densely packed nanoparticles create the optimally sized nanointerstitial features in SLIPS (Nano-SLIPS). The capillary pressure stabilizing the lubricant in Nano-SLIPS balances or exceeds the capillary suction pressure by frost dendrites. We term this concept capillary balancing. Three-dimensional spatial analysis via confocal microscopy reveals that lubricants in optimally structured Nano-SLIPS are not affected throughout condensation (0 °C), extreme frosting (−20 °C to −100 °C), and traverse ice-shearing (−10 °C) tests. These surfaces preserve low ice adhesion (10−30 kPa) over 50 icing cycles, demonstrating a design principle for next-generation anti-icing surfaces.

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“…Despite their qualities, slippery lubricated surfaces suffer with the depletion of oil during their use (Baumli et al, 2019). Thus, aiming at offshore oil production application, the need of lubricant oil replenishment is disadvantageous, for it would mean the stop of production and/or replacement of equipment.…”

Section: Introductionmentioning

confidence: 99%

Could petroleum work as lubricant oil on slippery lubricated surfaces to prevent inorganic scaling?

Signorelli

Bertran

2020

Heliyon

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The use of nucleation and growth inhibitors at offshore oil industry to avoid inorganic scaling could be replaced by both physical and chemical modifications at surfaces to prevent the scaling. In that way, the slippery lubricated surfaces have been showing promising results as scaling preventers, notably when the lubricants are perfluorinated oils, which are immiscible with almost every kind of compound. Nonetheless, the requirement of periodically refilling these lubricant oils is disadvantageous, especially when dealing with deep sea facilities. Using petroleum as the lubricant oil could skip the refilling step, since it is always present in the extraction medium. So, this work tests the effectiveness of petroleum as the lubricant oil in functionalized textured polyaniline applied as anti-scaling material in conditions that simulate the medium of offshore operation. As result, petroleum as lubricant oil presents effective anti-scaling capacity and works perfectly in slippery lubricated surfaces.

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Flow‐Induced Long‐Term Stable Slippery Surfaces

Cited by 39 publications

References 52 publications

Fabrication of a Porous Slippery Icephobic Surface and Effect of Lubricant Viscosity on Anti-Icing Properties and Durability

Fabrication of a Porous Slippery Icephobic Surface and Effect of Lubricant Viscosity on Anti-Icing Properties and Durability

Capillary Balancing: Designing Frost-Resistant Lubricant-Infused Surfaces

Could petroleum work as lubricant oil on slippery lubricated surfaces to prevent inorganic scaling?

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