Tribological study of beeswax-thickened biogrease and its modification with carbon nanoparticles

Padgurskas, Juozas; Johns, E. I.; Radulescu, I.; Radulescu, A. V.; Rukuiža, Raimundas; Snitka, Valentinas; Kreivaitis, Raimondas; Kupčinskas, Artūras; Volskis, Darius

doi:10.1016/j.triboint.2023.108465

Cited by 8 publications

(2 citation statements)

References 35 publications

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“…With regard to greases, there is also an increase in the study of obtaining bioalternatives, especially using a vegetable oil as a base oil mixed with an ecological thickener such as natural wax or modified cellulose derived from a vegetable source [92,[113][114][115][116]. The Chemical Process and Product Technology Research Center (Pro2TecS) of Huelva (Spain) has studied the formulation of bio-greases from castor oil using thickeners such as epoxidefunctionalized alkali lignin (EAL) or epoxidized cellulose pulp from Eucalyptus globulus as potential substitutes for traditional lithium and calcium greases [92,93].…”

Section: Tribological Characterization and Performance Of Vegetable-d...mentioning

confidence: 99%

Influence of Molecular Structure on the Physicochemical and Tribological Properties of Biolubricants: A Review

Sanjurjo,

Rodríguez,

Viesca

et al. 2023

Lubricants

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The increase in the price of crude oil, the environmental impact, or the depletion of fossil resources has increased the need for bio-based alternatives. This has led to the search for renewable, biodegradable, and environmentally friendly raw materials to obtain lubricants that meet these characteristics. This review deals with the state of the art of biolubricants along with their most common raw materials and molecular structures, processes of chemical modification of bio-oils, as well as the relationship between their structural features and physicochemical/tribological properties. This review concludes that the production of fatty acid alkyl esters from vegetable oils is the most promising chemical route to produce a wide range of biolubricants through double transesterification reactions. It also highlights the need to explore this route for the production of microalgae-derived biolubricants due to its environmental benefits during cultivation and production processes.

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Section: Tribological Characterization and Performance Of Vegetable-d...mentioning

confidence: 99%

Influence of Molecular Structure on the Physicochemical and Tribological Properties of Biolubricants: A Review

Sanjurjo,

Rodríguez,

Viesca

et al. 2023

Lubricants

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“…The results revealed that the MoS2 and CaF2 additives can improve the wear resistance of lithium grease and reduce the friction coefficient. Padgurskas J et al [14] used rapeseed oil as a base oil and beeswax as a thickener, adding functional anti-wear and antioxidant additives and carbon nanoparticles of graphene oxide to modify the grease, and the results showed that functional additives and nanoparticles significantly improve tribological properties and reduce the wear rate. Wang YS et al [10] selected Molybdenum dialkyl dithiophosphate (MoDDP) and potassium borate (PB) as additives for greases.…”

Section: Introductionmentioning

confidence: 99%

Effects of Erucamide and N-phenyl-α-naphthylamine on the Friction and Torque Behaviors of Grease on Roller Bearings

Liu,

Mo,

et al. 2023

Lubricants

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To evaluate the impact of various proportions of erucamide and N-phenyl-α-naphthylamine on grease’s tribological performance for roller bearings, lithium complex grease (LCG) and polyurea grease (PG) were prepared with erucamide and N-phenyl-α-naphthylamine proportions of (0,0), (0,3), (1,2), (2,1), and (3,0). An investigation was conducted into the microscopic structures of the ten greases and their effects on the friction coefficients and wear scars of GCr15 steel. These findings were validated through bearing friction torque tests. The results indicate that the addition of 2 wt. % erucamide and 1 wt. % N-phenyl-α-naphthylamine to PG/LCG significantly enhances their tribological properties and reduces friction torque, with PG exhibiting superior performance. This enhancement was attributed to the synergistic interaction of erucamide and N-phenyl-α-naphthylamine with the lamellar thickener within PG. Erucamide contributed to friction reduction, while N acted as an antioxidant.

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Assessing the Electrochemical Performance of a Novel Low‐Cost Screen‐Printed Electrode Based on Apis mellifera Beeswax Modified with Vulcan@Chitosan Used for Acetominophen Detection

Gallina,

Oliveira,

da Silva

et al. 2024

Electroanalysis

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Tribological study of beeswax-thickened biogrease and its modification with carbon nanoparticles

Cited by 8 publications

References 35 publications

Influence of Molecular Structure on the Physicochemical and Tribological Properties of Biolubricants: A Review

Influence of Molecular Structure on the Physicochemical and Tribological Properties of Biolubricants: A Review

Effects of Erucamide and N-phenyl-α-naphthylamine on the Friction and Torque Behaviors of Grease on Roller Bearings

Assessing the Electrochemical Performance of a Novel Low‐Cost Screen‐Printed Electrode Based on Apis mellifera Beeswax Modified with Vulcan@Chitosan Used for Acetominophen Detection

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