Journal
LANGMUIR
Volume 31, Issue 28, Pages 7764-7775Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.langmuir.5b01652
Keywords
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Funding
- National Science Foundation [CBET-1067501]
- MRSEC program at the University of Chicago [DMR-1420709]
- Air Force Office of Scientific Research (AFOSR) [FA9550-14-1-0263]
- NSF PREM program [DMR-0934206]
- NSF [MCB-1413613]
- ChemMatCARS - NSF [CHE-1346572]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1346572] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0934206] Funding Source: National Science Foundation
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Colloidal particles can bind to fluid, interfaces with a capillary energy that is thousands of times the thermal energy. This phenomenon offers an effective route to emulsion and foam stabilization where the stability is influenced by the phase behavior of the particle-laden interface under deformation. Despite the vast interest in particle-laden interfaces, the key factors that determine the collapse of such an interface under compression have remained relatively unexplored. In this study, we illustrate the significance of the particle surface wettability and presence of electrolyte in the subphase on interparticle interactions at the interface and the resulting collapse mode. Various collapse mechanisms Including buckling, particle expulsion, and multilayer formation are reported and interpreted in terms of particle particle and particle-interface interactions.
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