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Forces measured between hydrophobic surfaces due to a sub-microscopic bridging bubble
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, YKI – Ytkemiska institutet.
1998 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 80, p. 5357-5360Article in journal (Refereed)
Abstract [en]

Atomic force microscopy on hydrophobic microspheres in water reveals a strong attraction with a range of 20–200 nm, following an initial steep repulsion at long range. The data are consistent with a single ubmicroscopic bubble between the surfaces, with the attraction due to its attachment and lateral spread, and the repulsion dependent on film drainage and the electric double layer. The results provide direct experimental evidence of the existence of long-lived submicron bubbles, and of their bridging as the cause of the measured long-range attractions between macroscopic hydrophobic surfaces.

Place, publisher, year, edition, pages
1998. Vol. 80, p. 5357-5360
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-27376OAI: oai:DiVA.org:ri-27376DiVA, id: diva2:1054380
Note
A1303Available from: 2016-12-08 Created: 2016-12-08 Last updated: 2020-12-01Bibliographically approved

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