Inferring wettability of heterogeneous surfaces by ToF-SIMS.

Inferring wettability of heterogeneous surfaces by ToF-SIMS. Research Abstract Details 

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Inferring wettability of heterogeneous surfaces by ToF-SIMS. Abstract Text:

Time-of-flight secondary ion mass spectrometry (ToF-SIMS) has been examined as a possible predictive tool for surface wettability. Heterogeneous surfaces were prepared with hydrophilic and hydrophobic regions of known surface coverage using self-assembled monolayers. The surface coverage of each component was then correlated with ToF-SIMS fragmentation of the hydrophobic and hydrophilic surface groups and static contact angle measurements. From these measurements, a clear relationship between the surface wettability and relative intensity of characteristic secondary ions was identified. Moreover, our results for planar surfaces can be extrapolated to predict the wettability of particulate samples for which direct contact angle measurements are not straightforward. The ability to infer particle wettability by ToF-SIMS is well suited to mineral characterization and in particular, the prediction of mineral flotation efficiencies.

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Inferring wettability of heterogeneous surfaces by ToF-SIMS. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of colloid and interface science

VOLUME: 320

Page Numbers: 563-8

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ISSN: 0021-9797

DAY: 2

MONTH: 02

YEAR: 2008

Inferring wettability of heterogeneous surfaces by ToF-SIMS. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Inferring wettability of heterogeneous surfaces by ToF-SIMS.

AFFILIATION: Ian Wark Research Institute, ARC Special Research Centre for Particle and Material Interfaces, University of South Australia, Mawson Lakes, South Australia 5095, Australia.

Country: United States

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MEDLINETA: J Colloid Interface Sci

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