Yeong Y.H. – TechConnect Briefs

Microscopic “Slide-Snap” Receding Contact Line Dynamics on Superhydrophobic Surfaces

Yeong Y.H., Milionis A., Bayer I.S., Loth E., University of Virginia, US

Receding angles have been shown to have great significance when designing a superhydrophobic surface for applications involving self-cleaning. Although apparent receding angles under dynamic conditions have been well studied, the microscopic receding contact line dynamics [...]

Mechanically Durable Superhydrophobic Nanocomposites from Acrylonitrile Butadiene Styrene (ABS)

Milionis A., Yeong Y.H., Loth E., Bayer I.S., University of Virginia, US

We report on the development of nanocomposites based on a combination of ABS with hydrophobically modified fumed silica (HMFS). By tuning the ratio between the two materials we are again able to obtain static water [...]

Mechanically Durable Superhydrophobic Nanocomposites from Acrylonitrile Butadiene Styrene (ABS)

Milionis A., Yeong Y.H., Loth E., Bayer I.S., University of Virginia, US

We report on the development of nanocomposites based on a combination of ABS with hydrophobically modified fumed silica (HMFS). By tuning the ratio between the two materials we are again able to obtain static water [...]

Effect of superhydrophobic nanocomposite surface roughness on anti-icing performance

Davis A., Yeong Y.H., Steele A., Loth E., Bayer I.S., University of Virginia, US

While past work has shown the ice-phobic potential of a superhydrophobic surface or noted the effect of surface area on ice adhesion to an array of microposts, questions still remain on the effect of a [...]

Durability of a superhydrophobic nanocomposite coating under extended replicated rain impact

Davis A., Yeong Y.H., Steele A., Bayer I., Loth E., DeCombarieu G., University of Virginia, US

The objective of this study was to test the mechanical durability of a polyurethane/organoclay nanocomposite modified with perfluoroalkyl methacrylic copolymer in conditions that replicate extended rain impact. Samples were impacted with 1.4 mm droplets at [...]

Impact of spray-casting height and pressure on durability and superhydrophobicity of nanocomposite coatings

Yeong Y.H., Davis A., Steele A., Loth E., Bayer I., De Combarieu G., Mechanical & Aerospace Engineering, University of Virginia, US

Recently, researchers introduced a new technique to fabricate superhydrophobic coatings by spray-casting polymer-nanoparticle suspensions using an air-atomizing nozzle. Upon thermosetting, the deposited polymer networks crosslink to form a durable, superhydrophobic nanocomposite coating. However, while the [...]

Adhesion strength and superhydrophobicity in polyurethane/organoclay nanocomposites

Steele A., Bayer I., Yeong Y.H., Loth E., University of Virginia, US

Polyurethane coatings are used on many different materials and in a wide variety of applications due to its high durability and adaptable chemical composition. Although there are a number of reports on the fabrication of [...]

Impact of Temperature and Humidity on Superhydrophobicity of Polyurethane/Organoclay Nanocomposites

Yeong Y.H., Steele A., Bayer I., Lakeman C., De Combarieu G., Loth E., University of Virginia, US

Recent preliminary investigations show that superhydrophobic coatings have the capability to reduce both ice accumulation and adhesion on a surface. Although there are recent studies of anti-icing superhydrophobic surfaces, the authors are not aware of [...]