Predictive Framework for the Spreading of Liquid Drops and the Formation of Liquid Marbles on Hydrophobic Particle Bed

Langmuir ◽  
2019 ◽  
Author(s):  
Arul Mozhi Devan Padmanathan ◽  
Apoorva Sneha Ravi ◽  
Hema Choudhary ◽  
Subramanyan Namboodiri Varanakkottu ◽  
Sameer V. Dalvi
Keyword(s):  
Liquid Drops ◽  
Liquid Marbles ◽  
Particle Bed ◽  
Hydrophobic Particle

The Fabrication and Property of PTFE-NP Liquid Marbles

2012 ◽  
Vol 465 ◽  
pp. 136-140
Author(s):  
Shao Peng Wang ◽  
Bing Yu ◽  
Hai Lin Cong ◽  
Xue Bai
Keyword(s):  
Drug Delivery ◽  
Water Purification ◽  
Powder Materials ◽  
Liquid Drops ◽  
Liquid Marbles ◽  
Delivery Water ◽  
Potential Applications ◽  
New Type ◽  
Mixing Method

Liquid marbles are hydrophilic liquid drops encapsulated with hydrophobic powder materials. The liquid marbles have potential applications in drug delivery, water purification, ferrofluidic device and sensor microfabrication. In this work, a new type of polytetrafluoroethylene nanoparticle (PTFE-NP) liquid marbles were fabricated successfully using mixing method. The morphology of the formed liquid marbles was characterized under different conditions, and novel properties of the PTFE-NP liquid marbles were investigated and demonstrated.

Properties of liquid marbles

2006 ◽  
Vol 462 (2067) ◽  
pp. 973-999 ◽  
Author(s):  
Pascale Aussillous ◽  
David Quéré
Keyword(s):  
Contact Line ◽  
Liquid Drops ◽  
Liquid Marbles ◽  
Liquid Marble

Liquid marbles are liquid drops made non-wetting by the use of a powder which coats them. Because of the absence of a contact line, quick motions without leakage of small amounts of liquid are allowed, which can be of interest in microfluidic applications. After characterizing the static liquid marble, we focus on its properties and study experimentally the viscous motion of liquid marbles. Then, we describe qualitatively possible ways for putting marbles into motion and quantify the robustness of this object.

Motion dynamics of liquid drops and powder-encapsulated liquid marbles on an inclined solid surface

2021 ◽  
Author(s):  
Xiaofeng Jiang ◽  
Shixing Chen ◽  
Enle Xu ◽  
Xianliang Meng ◽  
Guoguang Wu ◽  
...  
Keyword(s):  
Solid Surface ◽  
Liquid Drops ◽  
Liquid Marbles ◽  
Motion Dynamics

Hydrophobic Particle Films Improve Tree Fruit Productivity

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 548a-548 ◽  
Author(s):  
D.M. Glenn ◽  
G. Puterka ◽  
T. Baugher ◽  
T. Unruh ◽  
S. Drake
Keyword(s):  
West Virginia ◽  
Production Systems ◽  
Fruit Size ◽  
The United States ◽  
Fruit Production ◽  
Red Color ◽  
Tree Fruit ◽  
Fruit Productivity ◽  
Leaf Level ◽  
Hydrophobic Particle

Hydrophobic particle film technology (HPF) is a developing pest control system for tree fruit production systems. Studies were established in Chile, and Washington, Pennsylvania, and West Virginia in the United States, to evaluate the effect of HPF technology on tree fruit yield and quality. Studies in Chile, Washington, and West Virginia demonstrated increased photosynthetic rate at the leaf level. Yield was increased in peaches (Chile) and apples (West Virginia), and fruit size was increased in apples (Washington and Pennsylvania). Increased red color in apple was demonstrated at all sites with reduced russetting and `Stayman' cracking in Pennsylvania. HPF technology appears to be an effective tool in reducing water and heat stress in tree fruit resulting in increased fruit quality.

Experimental Research of Gasdynamic Liquid Drops Breakup in the Supersonic Flow with an Oblique Shock Wave

2020 ◽  
Author(s):  
K. Yu. Arefyev ◽  
O. V. Guskov ◽  
A. N. Prokhorov ◽  
A. S. Saveliev ◽  
E. E. Son ◽  
...  
Keyword(s):  
Shock Wave ◽  
Supersonic Flow ◽  
Experimental Research ◽  
Oblique Shock ◽  
Oblique Shock Wave ◽  
Liquid Drops

scholarly journals Particle Size Effects on Selectivity in Confined Bed Comminution

Minerals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 342
Author(s):  
Holger Lieberwirth ◽  
Lisa Kühnel
Keyword(s):  
Particle Size ◽  
High Pressure ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Size Effects ◽  
Experimental Investigations ◽  
Ore Processing ◽  
Tumbling Mills ◽  
Particle Bed ◽  
Vertical Roller

Confined bed comminution in high-pressure grinding rollers (HPGRs) and vertical roller mills (VRMs) was previously used preferably for grinding comparably homogeneous materials such as coal or clinker. Meanwhile, it started to complement or even replace tumbling mills in ore beneficiation with ore and gangue particles of rather different breakage behaviors. The selectivity in the comminution of a mixture of particles with different strengths but similar particle size distribution (PSD) of the constituents in a particle bed was investigated earlier. The strength of a material is, however, also a function of particle size. Finer particles tend to be more competent than coarser ones of the same material. In industrial ore processing using confined bed comminution, this effect cannot be neglected but even be exploited to increase efficiency. This paper presents research results on this topic based on experimental investigations with model materials and with natural particles, which were stressed in a piston–die press. It appeared that the comminution result substantially depends on the material characteristics, the composition of the mixture and the PSD of the constituents. Conclusions will be drawn for the future applications of selective comminution in mineral processing.

scholarly journals Publisher Correction: Capillary flow as the cause of ring stains from dried liquid drops

Nature ◽  
2021 ◽  
Vol 592 (7855) ◽  
pp. E12-E12
Author(s):  
Robert D. Deegan ◽  
Olgica Bakajin ◽  
Todd F. Dupont ◽  
Greg Huber ◽  
Sidney R. Nagel ◽  
...  
Keyword(s):  
Capillary Flow ◽  
Liquid Drops

Long‐Lived Liquid Marbles for Green Applications

2021 ◽  
pp. 2011198
Author(s):  
Joshua Saczek ◽  
Xiaoxue Yao ◽  
Vladimir Zivkovic ◽  
Mohamed Mamlouk ◽  
Dan Wang ◽  
...  
Keyword(s):  
Liquid Marbles

scholarly journals Grain-based DEM for Particle Bed Comminution

Minerals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 306
Author(s):  
Michael Klichowicz ◽  
Holger Lieberwirth
Keyword(s):  
Grain Size ◽  
Discrete Element Method ◽  
Specific Energy ◽  
Coarse Particles ◽  
Full Understanding ◽  
Real Experiment ◽  
Helpful Tool ◽  
Ore Processing ◽  
Comminution Process ◽  
Particle Bed

The comminution at the grain size level for liberating the valuable minerals usually requires the highest size-specific energy. Therefore, a full understanding of the comminution process at this level is essential. Models based on the Discrete Element Method (DEM) can become a helpful tool for this purpose. One major concern, however, is the missing representativeness of mineral microstructures in the simulations. In this study, a method to overcome this limitation is presented. The authors show how a realistic microstructure can be implemented into a particle bed comminution simulation using grain-based models in DEM (GBM-DEM). The improved algorithm-based modeling approach is exemplarily compared to an equivalent real experiment. The simulated results obtained within the presented study show that it is possible to reproduce the interfacial breakage observed in real experiments at the grain size level. This is of particular interest as the aim of comminution in mineral processing is not only the size reduction of coarse particles, but often an efficient liberation of valuable components. Simulations with automatically generated real mineral microstructures will help to further improve the efficiency of ore processing.

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