<abstract xmlns="http://www.w3.org/1999/xhtml">
<p>Lubricanting greases from waste frying vegetables oils with natural fibers additives could be the answer to the sustainable production of greases. Also, their biodegradability makes them more acceptable for the environment, having in view increasingly strict regulations in domain. In this experimental work, twenty lubricant formulae were created from waste sunflower oil and waste palm oil with calcium or lithium stearate as thickener and cellulose or lignin additives. All were rheologically tested and characterized as Bingham fluid with good consistency and plasticity. The penetration tests confirmed the good consistency, categorizing these products from normal to firm, very firm and hard lubricant greases comparable to those conventionally obtained from mineral oils. </p>
</abstract>

Lubricanting greases from waste frying vegetables oils with natural fibers additives could be the answer to the sustainable production of greases. Also, their biodegradability makes them more acceptable for the environment, having in view increasingly strict regulations in domain. In this experimental work, twenty lubricant formulae were created from waste sunflower oil and waste palm oil with calcium or lithium stearate as thickener and cellulose or lignin additives. All were rheologically tested and characterized as Bingham fluid with good consistency and plasticity. The penetration tests confirmed the good consistency, categorizing these products from normal to firm, very firm and hard lubricant greases comparable to those conventionally obtained from mineral oils.

Rheology of new lubricating greases made from renewable materials

Ovidius University Annals of Chemistry

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Rheology of new lubricating greases made from renewable materials"}

Lubricanting greases from waste frying vegetables oils with natural fibers additives could be the answer to the sustainable production of greases. Also, their...

Rheology of new lubricating greases made from renewable materials

Published Online: Sep 13, 2023

Page range: 91 - 98

Received: Jun 21, 2023

Accepted: Jul 30, 2023

DOI: https://doi.org/10.2478/auoc-2023-0012

Keywords
lubricating greases, renewable materials, rheological properties, thickener

© 2023 Olga V. Săpunaru et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Rheology of new lubricating greases made from renewable materials

Published Online: Sep 13, 2023

Page range: 91 - 98

Received: Jun 21, 2023

Accepted: Jul 30, 2023

DOI: https://doi.org/10.2478/auoc-2023-0012

Keywordslubricating greases, renewable materials, rheological properties, thickener

© 2023 Olga V. Săpunaru et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
lubricating greases, renewable materials, rheological properties, thickener