- Author
- Date
- 5-5-2019
- Title
- Drying of Pickering emulsions in a viscoelastic network of cellulose microfibrils
- Journal
- Colloids and Surfaces A-Physicochemical and Engineering Aspects
- Volume
- 568
- Pages (from-to)
- 271-276
- Number of pages
- 6
- Document type
- Article
- Faculty
- Faculty of Science (FNWI)
- Institute
- Van der Waals-Zeeman Institute (WZI)
Institute of Physics (IoP) - Abstract
-
Oil-in-water Pickering emulsions at high volume fractions (50 wt % oil) are prepared using cellulose microfibrils (CMF) from plant cell wall materials as emulsifiers and stabilizer. Confocal microscopy is used to monitor the changing CMF network over time and the rate of oil droplet coalescence. Without addition of glycerol the drying emulsion quickly coalesces, and a significant oil separation ensues. The rate of coalescence and the percentage of coalescence droplets and oil separation decrease as the concentration of CMF is increased. Addition of glycerol into the emulsions decreases the extent of droplet coalescence and oil separation. At 10 wt% added glycerol, coalescence could not be prevented but oil separation is minimal: the oil is mainly contained into honeycomb shaped cells made of CMF and glycerol. The results demonstrate the influence of the aqueous phase on the coalescence and film forming properties of CMF stabilized Pickering emulsions.
- URL
- go to publisher's site
- Other links
- Link to publication in Scopus
- Language
- English
- Persistent Identifier
- https://hdl.handle.net/11245.1/94f17242-0079-4ccf-9df1-cfca9aa4c22a
- Downloads
-
Drying of cellulose microfibril-stabilized emulsions-changes highlighted(Accepted author manuscript)
Disclaimer/Complaints regulations
If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library, or send a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible.