RT Journal Article
T1 Green oleogels based on elm pulp cellulose nanofibers: effect of the nanofibrillation pre-treatment on their thermo-rheological behavior
A1 Roman Fercheluc, Claudia
A1 Delgado Canto, Miguel Ángel
A1 Fernández Silva, Samuel David
A1 García Morales, Moisés
A1 Roman Fercheluc, Claudia
AB Sustainable lubricating oleogels were obtained based on elm (Ulmus minor Mill.) pulp cellulose nanofibers in castor oil. Before their nanofibrillation, two samples of the same bleached pulp were subjected to two different pre-treatments, either mechanical PFI (Paper and Fibre Research Institute) refining or chemical TEMPO-mediated oxidation. Their effect on the oleogels’ viscous flow and oscillatory shear behaviors was determined at different temperatures. Very pronounced differences were observed between these oleogels. The oleogel from the chemically-pretreated nanofibers showed evidences of being much more sensitive to both temperature and large shear deformations. Hence, its shear modulus underwent a very remarkable decay of 95.8% when subjected to a non-linear stress value of 100 Pa for 30 min. In turn, under the same conditions, a decay of only 41.4% was observed for the oleogel based on the nanofiber from the mechanically-pretreated nanofibers.
PB Springer
SN 0969-0239
SN 1572-882X (electrónico)
YR 2023
FD 2023-12
LK https://hdl.handle.net/10272/23310
UL https://hdl.handle.net/10272/23310
LA eng
NO Roman, C., Delgado, M. A., Fernández-Silva, S. D., & García-Morales, M. (2023). Green oleogels based on elm pulp cellulose nanofibers: effect of the nanofibrillation pre-treatment on their thermo-rheological behavior. Cellulose, 31(1), 321–333. https://doi.org/10.1007/s10570-023-05664-0
NO Funding for open access publishing: Universidad de Huelva/CBUA. This work is part of two Research Projects sponsored by “Programa Operativo FEDER-Andalucía 2014–2020” (UHU-1255843 and UHU-202008). The authors gratefully acknowledge their financial support. S.D. Fernández-Silva acknowledges “Ayudas para la Contratación Predoctoral de Personal Investigador en Formación 2021, Junta de Andalucía” (PREDOC_01696), for funding his PhD Thesis. 
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026