期刊
POWDERS AND GRAINS 2013
卷 1542, 期 -, 页码 1043-1046出版社
AMER INST PHYSICS
DOI: 10.1063/1.4812113
关键词
superhydrophobicity; liquid marble; agglomeration
We observed that water drops placed on horizontal beds of fine molybdenite particles move freely over the bed surface for about 1 second. The drops collect an irregular coating of unevenly distributed particles as they bounce and roll. We manipulated the distance that the drops travel, and hence the area of the droplet surface coated with particles, by varying the water surface tension and the kinetic energy of the initial droplet impact on the bed surface. Our results highlight the role of contact angle hysteresis in particle encapsulation of liquid drops.
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