Journal
LANGMUIR
Volume 27, Issue 5, Pages 1556-1559Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la104369z
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Funding
- Industrial Partnership for Research in Interfacial and Materials Engineering (IPrime)
- University of Minnesota graduate school
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Liquid bridges containing bubbles are relevant to industrial printing and are also a topic of fundamental scientific interest. We use flow visualization to study the stretching of liquid bridges, both with and without bubbles, at low capillary numbers. We find that whereas the breakup of wetting fluids between two identical surfaces is symmetric about the bridge midpoint, contact line pinning breaks this symmetry at slow stretching speeds for nonwetting fluids. We exploit this observation to force air bubbles selectively toward the least hydrophilic plate confining the liquid bridge.
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