Ballistic Jumping Drops on Superhydrophobic Surfaces via Electrostatic Manipulation

Li, Ning; Wu, Lei; Yu, Cunlong; Dai, Haoyu; Wang, Ting; Dong, Zhichao; Jiang, Lei

doi:10.1002/adma.201703838

Cited by 76 publications

(90 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As is well known, the superhydrophobic surface depends on the geometrical structure and low surface energy chemical composition. 9,[11][12][13][14][15][16][17][18][19] Superhydrophobic surfaces with such interface behaviour allow water/rain droplets to easily roll off from the substrates and those with high transparency have potential applications in various elds, such as self-cleaning traffic indicators, wind screens, optical devices, self-cleaning windows, solar panels, etc. Recently, a lot of researchers have reported the preparation of excellent superhydrophobic surfaces using various methods and have overcome more and more challenges.…”

Section: Introductionmentioning

confidence: 99%

Efficiently texturing hierarchical superhydrophobic fluoride-free translucent films by AACVD with excellent durability and self-cleaning ability

et al. 2018

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Efficiently texturing hierarchical superhydrophobic fluoride-free translucent films by AACVD with excellent durability and self-cleaning ability

et al. 2018

View full text Add to dashboard Cite

show abstract

“…To manipulate droplet motion in a higher speed, external stimuli, such as thermal, electrical, optical, and magnetical signals, have been used . Unfortunately, neither way can ignore the requirements of stimulus‐response substrates or additives in droplets to overcome the contact line pinning of the droplet on the surface, which leads to low motion velocities and the difficulty in no‐loss transport . Previous works on manipulating liquid droplet motion route on the superhydrophobic surface mostly focus on designing low‐adhesion superhydrophobic tracks .…”

mentioning

confidence: 99%

Controllable High‐Speed Electrostatic Manipulation of Water Droplets on a Superhydrophobic Surface

et al. 2019

Self Cite

View full text Add to dashboard Cite

Biological processes and technological applications cannot work without liquid control, where versatile water droplet manipulation is a significant issue. Droplet motion is conventionally manipulated by functionalizing the target surface or by utilizing additives in the droplet, still, with uncontrolled limitation on superhydrophobic surfaces since droplets are either unable to move fast or are difficult to stop while moving. A controllable high‐speed “all‐in‐one” no‐loss droplet manipulation, that is, in‐plane moving and stopping/pinning in any direction on a superhydrophobic surface, with electrostatic charging is demonstrated. The experimental results reveal that the transport speed can vary from zero to several hundreds of millimeters per second. Controlled dynamic switching between the onset moving state and the offset pinning state of a water droplet can be achieved by out‐of‐plane electrostatic charging. This work opens the possibility of droplet control techniques in various applications, such as combinatory chemistry, biochemical, and medical detection.

show abstract

“…Inspired by nature, [ 4–7 ] superhydrophobic surfaces with extreme repellency to water have attracted significant interest, owing to their potential applications in anti‐condensation, anti‐frosting, anti‐icing, anti‐fogging, and self‐cleaning activities. [ 8–20 ] Biomimetic superhydrophobic surfaces can be prepared via different approaches, including reactive ion etching, [ 21 ] chemical/physical processing, [ 22–25 ] lithographing, [ 26,27 ] and coating. [ 28–33 ] Among these approaches, the coating approach has been widely applied, owing to its simple preparation process, low equipment requirement, and wide application range.…”

Section: Introductionmentioning

confidence: 99%

Water‐Based Robust Transparent Superamphiphobic Coatings for Resistance to Condensation, Frosting, Icing, and Fouling

Song

Cheng

et al. 2020

Adv Materials Inter

View full text Add to dashboard Cite

high fraction of the total energy consumption. For example, air-conditioners and refrigerators account for more than 10% and 32% of the total residential energy consumption in China, respectively. [2,3] Therefore, improvement of the energy efficiency characterizing heat exchangers plays a crucial role in reducing energy consumption. However, the occurrence of condensate films, frost layers, and fouling on the surfaces of conventional hydrophilic heat exchangers acts as a thermal barrier to significantly reduce in the heat transfer. One alternative, that is, a periodic heating process for complete melting of the frost, results in extra energy consumption. In addition, wet surfaces are prone to the dust deposition, breeding of bacteria, and corrosion acceleration.Inspired by nature, [4][5][6][7] superhydrophobic surfaces with extreme repellency to water have attracted significant interest, owing to their potential applications in anticondensation, anti-frosting, anti-icing, antifogging, and self-cleaning activities. [8][9][10][11][12][13][14][15][16][17][18][19][20] Biomimetic superhydrophobic surfaces can be prepared via different approaches, including reactive ion etching, [21] chemical/physical processing, [22][23][24][25] lithographing, [26,27] and coating. [28][29][30][31][32][33] Among these approaches, the coating approach has been widely applied, owing to its simple preparation process, low equipment requirement, and wide application range. However, organic solvents, such as ethanol, acetone, or butyl acetate, are frequently used to dissolve or disperse low surface energy substances during the preparation process. [34,35] Compared with organic solvents, water is a green, safe, and economical solvent. [36] A few strategies have been reported about preparing waterbased superhydrophobic coatings and even water-based superamphiphobic coatings. [37][38][39][40][41][42][43][44] The focus of the present studies is on the preparation of these coatings. However, high performances of water-based superhydrophobic coatings are neglected which are the key factors in wide, long-term, and efficient application, due to the difficulty in achieving them. For example, micro-sized or smaller condensate dewdrops on most water-based superhydrophobic coatings occur in the Wenzel state, although the contact angles (CAs) and sliding angles (SAs) of macro water droplets on these coatings are >150 and <10, respectively. [45] The Wenzel-state dewdrops may lead to Due to the considerable demand for improving energy conservation and emission reduction, superhydrophobic coatings mainly derived from organic solvents have attracted significant interest, based on their potential role in enhancing heat transfer. Although water-based coatings are relatively safe and economical, and contain low volatile organic compounds (VOCs), the realization of coatings with excellent anti-condensation, anti-frosting, antiicing, and passive self-cleaning properties remains challenging, owing to the Wenzel state of small-sized condensate microdrops. Herein, ...

show abstract

Ballistic Jumping Drops on Superhydrophobic Surfaces via Electrostatic Manipulation

Cited by 76 publications

References 46 publications

Efficiently texturing hierarchical superhydrophobic fluoride-free translucent films by AACVD with excellent durability and self-cleaning ability

Efficiently texturing hierarchical superhydrophobic fluoride-free translucent films by AACVD with excellent durability and self-cleaning ability

Controllable High‐Speed Electrostatic Manipulation of Water Droplets on a Superhydrophobic Surface

Water‐Based Robust Transparent Superamphiphobic Coatings for Resistance to Condensation, Frosting, Icing, and Fouling

Contact Info

Product

Resources

About