Urška Šebenik (Avtor), Romano Lapasin (Avtor), Matjaž Krajnc (Avtor)

Povzetek

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.

Ključne besede

TEMPO-oksidirana nanofibrilirana celuloza;laponit;učinki mešanja;hidrogeli;reologija;TEMPO-oxidized nanofibrillated cellulose;laponite;blending effects;hydrogels;rheology;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FKKT - Fakulteta za kemijo in kemijsko tehnologijo
UDK: 532.135:678
COBISS: 12992515 Povezava se bo odprla v novem oknu
ISSN: 0144-8617
Št. ogledov: 870
Št. prenosov: 298
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: TEMPO-oksidirana nanofibrilirana celuloza;laponit;učinki mešanja;hidrogeli;reologija;
Vrsta dela (COBISS): Članek v reviji
Konec prepovedi (OpenAIRE): 2021-04-21
Strani: str. 1-12
Zvezek: ǂVol. ǂ240
Čas izdaje: 15 Jul. 2020
DOI: 10.1016/j.carbpol.2020.116330
ID: 11688438