Issue 27, 2013

Scaling of the dynamic response of hectorite clay suspensions containing poly(ethylene glycol) along the universal route of aging

Abstract

The temporal growth of dynamic response during the aging of hectorite clay suspensions containing NaCl with different poly(ethylene glycol) (PEG) concentrations was measured. For each PEG concentration, the dynamic responses at different waiting times were shifted into a master curve against the rescaled frequency, which indicated that the dynamic spectrum was preserved during the aging process. At each fixed waiting time, the dynamic responses of suspensions with different PEG concentrations were also shifted into a master curve against the rescaled frequency, which revealed that the modification of inter-particle interaction by the PEG adsorption did not change the relaxation during the aging route. These two superposition approaches led to a universal master curve revealing the equivalent effect of PEG concentration and waiting time on the dynamic response. Finally, the relative mean relaxation time extracted from the master curves of waiting time and PEG concentration reflecting the slowing down of the dynamics during aging was superimposed to a master curve, implying the existence of a similar dynamic response. The present results suggested that the universal route of aging was preserved for the clay suspensions and a similar dynamic response was found from the mechanical spectra at different aging stages.

Graphical abstract: Scaling of the dynamic response of hectorite clay suspensions containing poly(ethylene glycol) along the universal route of aging

Article information

Article type
Paper
Submitted
09 Feb 2013
Accepted
13 May 2013
First published
20 May 2013

Soft Matter, 2013,9, 6263-6269

Scaling of the dynamic response of hectorite clay suspensions containing poly(ethylene glycol) along the universal route of aging

W. Sun, T. Wang, C. Wang, X. Liu and Z. Tong, Soft Matter, 2013, 9, 6263 DOI: 10.1039/C3SM50436K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements