izpis_h1_title_alt

Rheology of aqueous dispersions of Laponite and TEMPO-oxidized nanofibrillated cellulose
ID Šebenik, Urška (Author), ID Lapasin, Romano (Author), ID Krajnc, Matjaž (Author)

.pdfPDF - Presentation file, Download (2,37 MB)
MD5: 5C41A3159F6171F02BBE2788F6A7A6F4
URLURL - Source URL, Visit https://www.sciencedirect.com/science/article/abs/pii/S014486172030504X This link opens in a new window

Abstract
The viscoelastic and flow properties of aqueous Laponite/TEMPO-oxidized nanofibrillated cellulose (TEMPO-NFC) systems are investigated with the aim to study the effect of content and proportion of both components on the properties. Both Laponite and TEMPO-NFC aqueous dispersions can find numerous applications in different fields (from industrial to biomedical one) due to their structural and rheological properties. The most important effects of blending are observed at low Laponite fractions, also with qualitative changes in the shape of the flow curves and mechanical spectra. Positive synergistic effects are ascribed to the interpenetration and electrostatic interactions between TEMPO-NFC fibrils and Laponite nanodisks. These mechanisms are more effective in Laponite-poor blends when a minority of clay nanoparticles and its aggregated forms are distributed within the nanocellulose matrix, acting as bridging agents between polymer nanofibrils. The synergistic effects are compared to those observed for Laponite blends with a nonionic biopolymer, scleroglucan.

Language:English
Keywords:TEMPO-oxidized nanofibrillated cellulose, laponite, blending effects, hydrogels, rheology
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FKKT - Faculty of Chemistry and Chemical Technology
Publication status:Published
Publication version:Author Accepted Manuscript
Year:2020
Number of pages:Str. 1-12
Numbering:Vol. 240, art. 116330
PID:20.500.12556/RUL-116117 This link opens in a new window
UDC:532.135:678
ISSN on article:0144-8617
DOI:10.1016/j.carbpol.2020.116330 This link opens in a new window
COBISS.SI-ID:12992515 This link opens in a new window
Publication date in RUL:15.05.2020
Views:1451
Downloads:486
Metadata:XML RDF-CHPDL DC-XML DC-RDF
:
Copy citation
Share:Bookmark and Share

Record is a part of a journal

Title:Carbohydrate polymers
Shortened title:Carbohydr. polym.
Publisher:Elsevier
ISSN:0144-8617
COBISS.SI-ID:27286272 This link opens in a new window

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:15.05.2020

Secondary language

Language:Slovenian
Keywords:TEMPO-oksidirana nanofibrilirana celuloza, laponit, učinki mešanja, hidrogeli, reologija

Projects

Funder:ARRS - Slovenian Research Agency
Project number:P2-0191
Name:Kemijsko inženirstvo

Similar documents

Similar works from RUL:
Similar works from other Slovenian collections:

Back