The adhesion of ice to lubricated surfaces

Baker, Hayward R.; Bascom, W. D.; Singleterry, C. R.

doi:10.1016/0095-8522(62)90057-0

Cited by 40 publications

(15 citation statements)

References 5 publications

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“…The stability of a possible oil film underneath this droplet is affected by the wettability of the surface. It has been pointed out , that this is determined by the interfacial tensions of oil, colloidal liquid, and solid substrate, which is represented by the spreading constant S ow(s) = γ sw – γ ow – γ os = −γ ow (cos θ o + 1). Here, θ o is the contact angle of the water droplet on the substrate when submerged in a silicone oil-filled bath.…”

Section: Resultsmentioning

confidence: 99%

Control of Droplet Evaporation on Oil-Coated Surfaces for the Synthesis of Asymmetric Supraparticles

Gao

Liu

et al. 2019

Langmuir

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Controlling the droplet evaporation on surfaces is desired to get uniform depositions of materials in many applications, for example, in two- and three-dimensional printing and biosensors. To explore a new route to control droplet evaporation on surfaces and produce asymmetric particles, sessile droplets of aqueous dispersions were allowed to evaporate from surfaces coated with oil films. Here, we applied 1–50 μm thick films of different silicone oils. Two contact lines were observed during droplet evaporation: an apparent liquid–liquid–air contact line and liquid–liquid–solid contact line. Because of the oil meniscus covering part of the rim of the drop, evaporation at the periphery is suppressed. Consequently, the droplet evaporates mainly in the central region of the liquid–air interface rather than at the droplet’s edge. Colloidal particles migrate with the generated upward flow inside the droplet and are captured by the receding liquid–air interface. A uniform deposition ultimately forms on the substrate. With this straightforward approach, asymmetric supraparticles have been successfully fabricated independent of particle species.

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Section: Resultsmentioning

confidence: 99%

Control of Droplet Evaporation on Oil-Coated Surfaces for the Synthesis of Asymmetric Supraparticles

Gao

Liu

et al. 2019

Langmuir

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“…Previously, there have been numerous publications related to developing “icephobic” surfaces ( 2 – 13 ). Such surfaces use different approaches including delaying droplet freezing time ( 5 , 13 – 15 ), preventing frost formation ( 6 , 8 , 12 ), and lowering τ ice ( 2 – 4 , 6 – 9 , 11 , 13 , 16 ). Icephobic surfaces can be defined by an ice adhesion strength τ ice < 100 kPa ( 13 ).…”

Section: Introductionmentioning

confidence: 99%

Designing durable icephobic surfaces

et al. 2016

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“…The adhesional strength of ice to Teflon is slightly more than half the value for ice sheared from hydrophilic metal surfaces [2]. In a study of ice adhesion to lubricated surfaces, strong adhesion was observed even when the contact angle of water on a metal under oil was as high as MOO [3]. Ford and Nichols [2] demonstrated that at temperatures near -2OOC low adhesion to hydrophobic plastics usually results from large differences between the thermal coefficients of expansion of ice and substrate.…”

Section: Introductionmentioning

confidence: 99%

Ice Adhesion to Hydrophilic and Hydrophobic Surfaces

Bascom

Cottington

Singleterry

1969

The Journal of Adhesion

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The adhesional shear strength has been determined for ice formed against polished steel, monolayers adsorbed on steel and thin plastic coatings painted on metal surfaces, The adsorbed monolayers reduced the shear strength to about one-third of that for ice on clean steel. The monolayers also had the effect of changing the character of the breaks from clearly cohesional to apparently adhesional failure. The shear strength from the plastic coatings ranged from values equal to that of ice against clean steel to values 70 to 80% lower. The reduction in shear strength did not correlate with the water contact angle on the coatings but was usually found to be due either to air entrapment at the ice/coating interface or to cohesive failure of the coating itself.The ice separated from the various substrates was examined microscopically by forming lastic replicas of the ice surface. These studies helped determine 8 e mechanism of failure and, since one of the replicating solutions was also an ice etchant, much was learned about the crystal structure and the crystal defects of ice near surfaces. The ice lattice was found to be highl defective near the substrates and this is discussed in connection w i x the "liquid-like," behavior of interfacial ice.

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The adhesion of ice to lubricated surfaces

Cited by 40 publications

References 5 publications

Control of Droplet Evaporation on Oil-Coated Surfaces for the Synthesis of Asymmetric Supraparticles

Control of Droplet Evaporation on Oil-Coated Surfaces for the Synthesis of Asymmetric Supraparticles

Designing durable icephobic surfaces

Ice Adhesion to Hydrophilic and Hydrophobic Surfaces

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