EPSRC logo

Details of Grant 

EPSRC Reference: GR/M83797/01
Title: SURFACTANTS AT EXPANDING LIQUID SURFACES
Principal Investigator: Bain, Professor CD
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department: Oxford Chemistry
Organisation: University of Oxford
Scheme: Standard Research (Pre-FEC)
Starts: 10 February 2000 Ends: 09 November 2003 Value (£): 154,886
EPSRC Research Topic Classifications:
Surfaces & Interfaces
EPSRC Industrial Sector Classifications:
Manufacturing No relevance to Underpinning Sectors
Related Grants:
GR/M83780/01
Panel History:  
Summary on Grant Application Form
Expanding liquid surfaces occur widely in nature and in technological applications. The presence of surfactants dramatically changes the behaviour of liquid surfaces under dynamic conditions. The Marangoni that flows that arise from surface tension gradients can dominate the fluid dynamics of drops and thin films. This proposal will exploit recent developments in experimental techniques to study expanding liquid surfaces on the 0.1-1 second timescale. A liquid surface under continuous steady-state expansion will be established in an overflowing cylinder. The interfacial properties will be determined directly, quantitatively and non-invasively by ellipsometry, surface light scattering, neutron reflection and laser Doppler velocimetry. The approach will provide enormous benefits over previous research that has relied almost exclusively on the measurement of dynamic surface tension. A wide range of pure surfactants will be examined in order to determine the factors controlling the adsorption kinetics on the sub-second timescale and to develop a phenomenological understanding of Marangoni effects in surfactant solutions on this timescale.
Key Findings
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Potential use in non-academic contexts
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Impacts
Description This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Summary
Date Materialised
Sectors submitted by the Researcher
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Project URL:  
Further Information:  
Organisation Website: http://www.ox.ac.uk