The Open UniversitySkip to content
 

Micro squeeze flow rheometer for high frequency analysis of nano-litre volumes of viscoelastic fluid

Cheneler, D.; Bowen, J.; Ward, M. C. L. and Adams, M. J. (2011). Micro squeeze flow rheometer for high frequency analysis of nano-litre volumes of viscoelastic fluid. Microelectronic Engineering, 88(8) pp. 1726–1729.

Full text available as:
[img]
Preview
PDF (Accepted Manuscript) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (483kB) | Preview
DOI (Digital Object Identifier) Link: https://doi.org/10.1016/j.mee.2010.12.032
Google Scholar: Look up in Google Scholar

Abstract

In this paper, the design, fabrication and experimental analysis of a piezoelectrically actuated micro squeeze flow rheometer is presented. Being only 30x30x0.5mm in size, the micro rheometer is sensitive to very small volumes of the order of 1-10nL of liquid and light enough to operate at frequencies in the kHz regime, an order of magnitude higher than normally attainable with conventional cone and plate rheometry. Initial experiments show that the response of the rheometer is dependent on the viscoelasticity of the fluid being tested. The prototype was used to measure the moduli of poly(dimethylsiloxane) (PDMS) of viscosity 10Pas, a non-volatile viscoelastic fluid, over the frequency range of 10-1000Hz. Results show good agreement between with the moduli measured using conventional rheometry up to 100Hz and with values extrapolated up to 1kHz.

Item Type: Journal Item
Copyright Holders: 2010 Elsevier B.V.
ISSN: 1873-5568
Extra Information: Proceedings of the 36th International Conference on Micro- and Nano-Engineering (MNE)

36th International Conference on Micro- and Nano-Engineering (MNE)
Keywords: microrheometer; squeeze flow; piezoelectric; microfluidics; arrays
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Related URLs:
Item ID: 43182
Depositing User: James Bowen
Date Deposited: 15 Jun 2015 10:44
Last Modified: 16 Nov 2016 04:50
URI: http://oro.open.ac.uk/id/eprint/43182
Share this page:

Altmetrics

Download history for this item

These details should be considered as only a guide to the number of downloads performed manually. Algorithmic methods have been applied in an attempt to remove automated downloads from the displayed statistics but no guarantee can be made as to the accuracy of the figures.

Actions (login may be required)

Policies | Disclaimer

© The Open University   contact the OU