| EPSRC Reference: |
GR/M58436/01 |
| Title: |
SENSING FLOC STRUCTURE IN CONCENTRATED COLLOIDAL DISPERSIONS |
| Principal Investigator: |
Vincent, Professor B |
| Other Investigators: |
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| Department: |
Chemistry |
| Organisation: |
University of Bristol |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 December 1999 |
Ends: |
30 November 2001 |
Value (£): |
94,257
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| EPSRC Research Topic Classifications: |
| Complex fluids & soft solids |
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| EPSRC Industrial Sector Classifications: |
| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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The project overall will develop an understanding of the scattering of ultrasound from aggregated particular dispersions, which will form the basis of the design of robust, cheap sensors for the chemical, pharmaceutical and food industries. Previous work has shown that ultrasonic spectra change dramatically upon aggregation. Theoreticians are currently trying to interpret these changes. A key requirement is to validate the information from the ultrasonic experiments. The University of Bristol has developed a large rang eof model colloidal systems, and has studied their homo- and heteroaggregation using static and dynamic light scattering (eg to determine fractal dimensions). The use of highly swollen microgel particles allows the extension of the light scattering techniques into concentration regions which may be probed using ultrasonics. The IFR has a highly accurate ultrasonic spectrometer which operates over the frequency range 2-100 MHz. Concurrent theoretical work will be carried out at Leeds (M Povey) to interpret the ultrasonic data. On-line instrumentation will be developed in the late stages with the Nottingham Group (R Challis).
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.bris.ac.uk |