Ciccone, G., Skopalik, S., Smart, C., Gezgin, S., Ridland, D., Paul, M. C. , Escobar, M. d. P. N. and Tassieri, M. (2022) A rheological characterization of synthetic detergent formulations. Physics of Fluids, 34, 097109. (doi: 10.1063/5.0099145)
![[img]](https://eprints.gla.ac.uk/style/images/fileicons/text.png) |
Text
276529.pdf - Published Version Available under License Creative Commons Attribution. 2MB |
Abstract
Soap bars offer a valuable alternative to liquid soaps and their market is flourishing in response to society's commitment to the Green Economy and sustainable products. The advent of synthetic detergent (syndet) “soap” formulations has opened markets for products such as shampoo, conditioner, and facial bars. However, their processability has been revealed to be less controllable than conventional fatty acid-based soaps. In this work, we present a rheological characterization of a set of syndet formulations as a function of both their moisture content and of a compressional stress applied perpendicularly to the shear deformation, as experienced by the materials within extruders during the production process. The main outcome of our investigation reveals that syndet shows a significant stiffening when subjected to compressional stress and a slight reduction of the yield stress as a function of the moisture content. In particular, we report that, within the instrumental limits of applicable normal stresses (i.e., from ∼1 to ∼300 kPa), both the linear viscoelastic moduli of syndets and their yield stress increase by two orders of magnitude; thus, potentially explaining the difficulties encountered during their production. I. INTRODUCTION
| Item Type: | Articles |
|---|---|
| Additional Information: | The authors acknowledge financial support from Soapworks Ltd., EPSRC Impact Acceleration Account (No. EP/ R511705/1) and Knowledge Transfer Partnerships (KTPs) (No. 12905). |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Paul, Professor Manosh and CICCONE, Mr GIUSEPPE and Tassieri, Dr Manlio and Skopalik, Mr Simeon |
| Authors: | Ciccone, G., Skopalik, S., Smart, C., Gezgin, S., Ridland, D., Paul, M. C., Escobar, M. d. P. N., and Tassieri, M. |
| College/School: | College of Science and Engineering > School of Engineering College of Science and Engineering > School of Engineering > Biomedical Engineering College of Science and Engineering > School of Engineering > Systems Power and Energy |
| Journal Name: | Physics of Fluids |
| Publisher: | American Institute of Physics |
| ISSN: | 1070-6631 |
| ISSN (Online): | 1089-7666 |
| Published Online: | 09 September 2022 |
| Copyright Holders: | Copyright © The Author(s) 2022 |
| First Published: | First published in Physics of Fluids 34: 097109 |
| Publisher Policy: | Reproduced under a Creative Commons License |
University Staff: Request a correction | Enlighten Editors: Update this record
Funder and Project Information
Funder and Project Information