Results 21 to 30 of about 831 (155)

Assessing Antioxidant and Pour Point Depressant Capacity of Turmeric Rhizome Extract in Biolubricants

open access: yesLubricants
Natural polyphenols found in plants are secondary metabolites and act as natural antioxidants. Phenols prevent lipid oxidation by donating their hydrogen to free radicals generated between reactions of oxygen with unsaturated fatty acids.
Joseph Samuel   +9 more
doaj   +2 more sources

An Experimental–Numerical Study on Oxidation Inhibition of SiO2 Nanoparticles in Biolubricants for Internal Combustion Engines

open access: yesApplied Sciences
Modern agriculture depends heavily on machinery to maximize operational efficiency and, consequently, profitability, but the wear-and-tear on the mechanical components of machinery due to ageing can lead to reduced efficiency, more downtime, and higher ...
Homeyra Piri   +3 more
doaj   +2 more sources

An overview of functional biolubricants

open access: yesFriction, 2022
AbstractAt present, more and more diseases are associated with the lubrication dysfunction, which requires a systematic study of the complex lubrication behavior of tissues and organs in human body. Natural biomacromolecular lubricants are essential for maintaining ultra-low coefficients of friction between sliding biological interfaces.
Lumin Yang   +4 more
openaire   +1 more source

Chemical modification of vegetable oils for the production of biolubricants using trimethylolpropane: A review

open access: yesEgyptian Journal of Petroleum, 2020
Lubricating oil producers are shifting attention toward the use of renewable and biodegradable energy sources for the production of lubricating oils. This is necessitated by the depleting mineral based energy sources and the negative impact of continuous
F.J. Owuna   +9 more
doaj   +1 more source

A Sustainability Assessment of a Biolubricant [PDF]

open access: yesJournal of Industrial Ecology, 2003
Summary A sustainability matrix has been developed at Shell Global Solutions to show the environmental, social, and economic impacts of a product. The approach aims to be quicker and more cost‐effective than a conventional life‐cycle assessment by focusing on specific areas of concern through the product life cycle and then comparing ...
Bryony Cunningham   +3 more
openaire   +1 more source

Single-Cell Oils from Oleaginous Microorganisms as Green Bio-Lubricants: Studies on Their Tribological Performance

open access: yesEnergies, 2021
Biolubricants refer to eco-friendly, biodegradable, and non-toxic lubricants. Their applications are still limited compared to mineral oils; however, their sustainable credentials are making them increasingly attractive.
Alok Patel   +5 more
doaj   +1 more source

Microalgae Biomass as a New Potential Source of Sustainable Green Lubricants

open access: yesMolecules, 2022
Lubricants are materials able to reduce friction and/or wear of any type of moving surfaces facilitating smooth operations, maintaining reliable machine functions, and reducing risks of failures while contributing to energy savings.
Leonardo I. Farfan-Cabrera   +4 more
doaj   +1 more source

A review of biolubricants in drilling fluids: recent research, performance, and applications [PDF]

open access: yes, 2015
Lubricant additives are added to drilling fluids to lower the drag and torque between the drill strings and rock formation. They impart lubricating properties into two moving surfaces contacts under extreme temperature and pressure conditions. Currently,
Kania, Dina   +4 more
core   +1 more source

Prospects of Plant-Based Trimethylolpropane Esters in the Biolubricant Formulation for Various Applications: A Review

open access: yesFrontiers in Mechanical Engineering, 2022
Biodegradable lubricants from renewable feedstocks have been successfully developed to meet the demands of new machines with stringent requirements of the global standards, which address sustainability and environmental policy.
Nurliyana A. Raof   +3 more
doaj   +1 more source

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