On the Nature of the Friction between Nonstick Droplets and Solid Substrates

被引：58
作者：
Bormashenko, Edward [1 ]
Bormashenko, Yelena [1 ]
Oleg, Gendelman [2 ]
机构：
[1] Ariel Univ, Ctr Samaria, Res Inst, Appl Phys Dept,Dept Chem & Biotechnol Engn, IL-40700 Ariel, Israel
[2] Technion Israel Inst Technol, Fac Mech Engn, IL-32000 Haifa, Israel
来源：
LANGMUIR | 2010年 / 26卷 / 15期
关键词：
SELF-CLEANING SURFACES; LIQUID MARBLES; SUPERHYDROPHOBIC SURFACES; WETTING PROPERTIES; RETENTION FORCE; CONTACT ANGLES; ROUGHNESS; WATER; DROPS; HYDROPHOBICITY;
D O I：
10.1021/la1002836
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The lateral rolling of nonstick water and glycerol droplets deposited on solid substrates inclined at the sliding angles was studied. Droplets deposited on lotuslike water-repellent surfaces and liquid marbles (powder-coated droplets) deposited on solid substrates demonstrated similar behavior. The motion of both droplets and marbles featured friction that is far from Amonton type. The sliding angles of nonstick drops are sensitive to the "history" of a drop on the substrate. The friction of glycerol marbles is governed by viscous dissipation, whereas the rolling of water marbles is dictated by adhesion forces acting within the contact area.
引用
收藏
页码：12479 / 12482
页数：4
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