Scalable superhydrophobic coatings based on fluorinated diatomaceous earth: Abrasion resistance versus particle geometry

Polizos, Georgios; Winter, Kyle O; Lance, Michael J.; Meyer, Harry M.; Armstrong, Beth L.; Schaeffer, Daniel A.; Simpson, John T.; Hunter, S. R.; Datskos, Panos G.

doi:10.1016/j.apsusc.2013.12.009

Cited by 47 publications

(33 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Wenzel equation applies when a droplet fills the cavities of a rough surface. The apparent contact angle θ c is then given by cos θ c = r cos θ 0 , (1) where θ 0 is the contact angle the material would give on a smooth surface and the roughness parameter r is the ratio between the actual surface area and the projected surface area.…”

Section: Fluid Theory Of Rough Surfacesmentioning

confidence: 99%

“…Several proposals for manufacturing superhydrophobic surfaces exist, many with the aim of achieving characteristics such as ice-phobicity and durability, see for example [1,2]. Many of these publications report on laboratory testing of the results, but fluid dynamics simulations by using mesoscopic methods such as the Lattice Boltzmann method have also been applied [3].…”

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Oriented ordering parameters for free energy lattice Boltzmann methods using the bounce-back boundary condition

Stensholt¹

2016

Computers & Mathematics with Applications

View full text Add to dashboard Cite

a b s t r a c tWe evaluate the Lattice-Boltzmann model that combines the free energy approach for multiphase flow with the bounce-back boundary condition. This method requires a virtual ordering parameter to be assigned to the wall nodes. Existing literature has assigned a single ordering parameter for the entire wall node, but this is too coarse to give accurate simulations since it allows for a spurious interaction of different phases through the wall nodes. The consequences are illustrated by examining rough and hydrophobic surfaces where contact angles can be predicted using the Cassie-Baxter equation. It is found that the single value approach gives a large systemic error in the measured contact angles. Considerable improvement can be obtained by assigning different values of the ordering parameter to each side of the wall node.

show abstract

Section: Fluid Theory Of Rough Surfacesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Oriented ordering parameters for free energy lattice Boltzmann methods using the bounce-back boundary condition

Stensholt¹

2016

Computers & Mathematics with Applications

View full text Add to dashboard Cite

show abstract

“…Naturally occurring DE is hydrophilic; consequently, it can be used in applications as adsorbents, in filtration, and in construction materials as a filler . Chemically modified, DE has been used in additional applications, such as materials for superhydrophobic coatings, metal adsorbents, and drug delivery …”

Section: Introductionmentioning

confidence: 99%

“…Our objective was to produce superhydrophobic coatings using fluorosilane‐treated diatomaceous earth particles (DE) with polymer binders that are inexpensive and have low volatile organic contents. DE has already been made into superhydrophobic particles through a variety of novel chemistries ,. Puretskiy, et al .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Superhydrophobic surfaces with silane‐treated diatomaceous earth/resin systems

Perera

Khatiwada

Paul

et al. 2016

J of Applied Polymer Sci

View full text Add to dashboard Cite

Superhydrophobic coatings were prepared using fluorosilane-treated diatomaceous earth (DE) with either polyurethane or epoxy binders. The surface wettability and morphology of the films were analyzed using contact angle measurements and scanning electron microscopy (SEM), respectively. The water contact angles were studied as a function of the fluorocarbon fraction on DE and the particle loadings of treated DE in the coating. The contact angles exceeded 1508 for coatings with at least 0.02 fluorocarbon fraction (mass of fluorosilane/mass of particle) on the DE and with 0.2 particle loadings (mass of treated particles/mass of coating). The water contact angles of the surfaces were dependent on the nature of the binder below 0.2 particle loadings of the superhydrophobic DE particles, but were independent of the binder type after attaining superhydrophobicity. The results were consistent with the superhydrophobicity resulting from the migration of the superhydrophobic DE moving to and covering the surfaces completely. It was also shown that the treatment with fluorosilanes restricted the pores in DE and reduces the specific surface area of the material. However, these changes had effectively no effect on the superhydrophobicity of the coatings. The results of this work clearly identify some important considerations relative to producing superhydrophobic coatings from inexpensive diatomaceous earth. V C 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44072.

show abstract

Nanomaterials Properties

Simmonds

2016

Handbook of Measurement in Science and Engineering

View full text Add to dashboard Cite

Scalable superhydrophobic coatings based on fluorinated diatomaceous earth: Abrasion resistance versus particle geometry

Cited by 47 publications

References 37 publications

Oriented ordering parameters for free energy lattice Boltzmann methods using the bounce-back boundary condition

Oriented ordering parameters for free energy lattice Boltzmann methods using the bounce-back boundary condition

Superhydrophobic surfaces with silane‐treated diatomaceous earth/resin systems

Nanomaterials Properties

Contact Info

Product

Resources

About