RT Journal Article
T1 Impact of Vegetable Oil Type on the Rheological and Tribological Behavior of Montmorillonite-Based Oleogels
A1 Martín Alfonso, María José
A1 Rubio Valle, José Fernando
A1 Hinestroza, Juan P.
A1 Martín Alfonso, José Enrique
AB We formulated and characterized oleogels based on montmorillonite clay and vegetable oils that could serve as eco-friendly semi-solid lubricants. In particular, we studied the influence of the physical-chemical properties of olive, castor, soybean, linseed, and sunflower oils on the rheological, chemical, thermal, and tribological properties of the semi-solid lubricants. We prepared the oleogels via the highly intensive mixing of vegetable oils with clay at a concentration of 30 wt.%. The oleogels exhibited shear-thinning, thixotropy, structural recovery, and gel-like behavior commonly related to that of a three-dimensional network. The results were corroborated via XRD measurements showing the presence of intercalated nanoclay structures well-dispersed in the vegetable oil. Empirical correlations between the content of saturated (SFAs), unsaturated (UFAs), mono-unsaturated (MUFAs) and poly-unsaturated (PUFAs) fatty acids and the plateau modulus of the aerogels were found. From these experimental results, we can conclude that the fatty acid profile of the vegetable oils exerts an important influence on the rheological and tribological properties of resulting clay and vegetable oil oleogels.
PB MDPI
SN 2310-2861 (electrónico)
YR 2022
FD 2022-08
LK http://hdl.handle.net/10272/21156
UL http://hdl.handle.net/10272/21156
LA eng
NO Martín-Alfonso, M. A., Rubio-Valle, J. F., Hinestroza, J. P., & Martín-Alfonso, J. E. (2022). Impact of Vegetable Oil Type on the Rheological and Tribological Behavior of Montmorillonite-Based Oleogels. In Gels (Vol. 8, Issue 8, p. 504). MDPI AG. https://doi.org/10.3390/gels8080504
NO This research was supported by FEDER European Programme and Junta de Andalucía,grant number PY20_00751. The authors acknowledge the X-ray Diffraction Service (Universidad de Huelva)for providing full access and assistance in X-ray Diffraction measurements
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026