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Viscoelastic properties of silica nanoparticle monolayers at the air-water interface

Zang, D. Y.; Rio, E.; Langevin, D.; Wei, B.; Binks, B. P.

Authors

D. Y. Zang

E. Rio

D. Langevin

B. Wei



Abstract

We have investigated the rheological behaviour of silica nanoparticle layers at the air-water interface. Both compressed and deposited layers have been studied in Langmuir troughs and with a bicone rheometer. The compressed layers are more homogeneous and rigid, and the elastic response to continuous, step and oscillatory compression are similar, provided the compression is fast enough and relaxation is prevented. The deposited layers are less rigid and more viscoelastic. Their shear moduli deduced from the oscillatory uniaxial compression are much smaller than those deduced from pure shear deformation suggesting that the effective shear rate is smaller than expected in the compression measurements.

Journal Article Type Article
Publication Date 2010-02
Journal EUROPEAN PHYSICAL JOURNAL E
Print ISSN 1292-8941
Electronic ISSN 1292-895X
Publisher EDP Sciences
Peer Reviewed Peer Reviewed
Volume 31
Issue 2
Pages 125-134
APA6 Citation Zang, D. Y., Rio, E., Langevin, D., Wei, B., & Binks, B. P. (2010). Viscoelastic properties of silica nanoparticle monolayers at the air-water interface. European Physical Journal E, 31(2), 125-134. doi:10.1140/epje/i2010-10565-7
DOI https://doi.org/10.1140/epje/i2010-10565-7