Improving the AW/EP ability of chemically modified palm oil by adding CuO and MoS2 nanoparticles

Gulzar, Mubashir; Masjuki, H.H.; Varman, M.; Kalam, M.A.; Mufti, Riaz Ahmad; Zulkifli, Nurin Wahidah Mohd; Yunus, Robiah; Zahid, Rehan

doi:10.1016/j.triboint.2015.03.035

Cited by 179 publications

(106 citation statements)

References 37 publications

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“…It should be noted that the deposition of NPs on the friction surface is the main explanation for the reduction of friction, since the presence of a thin layer interferes with the metal‐to‐metal contact and determines the tribological behavior of the interacting surfaces . The formation of the tribo‐film is initiated by the reaction between the rubbing material and additives under ambient conditions . As an example, Figure S10 (Supporting Information) shows the mechanisms of tribo‐film formation, which provide protection not only of the surface but also of the material from the propagation of the crack due to the reduction of friction between the asperities.…”

Section: Resultsmentioning

confidence: 99%

Metal Chelate Monomers Based on Nickel Maleate and Chelating N‐Heterocycles as Precursors of Core‐shell Nanomaterials with Advanced Tribological Properties

Uflyand

Zhinzhilo

Mukhanova

et al. 2019

Zeitschrift anorg allge chemie

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In this study, new metal chelate monomers based on nickel(II) maleate and chelating N‐heterocycles (2,2′‐bipyridine and 1,10‐phenanthroline) were synthesized and characterized. A detailed analysis of the main stages and features of the kinetics of thermal transformations of metal chelate monomers was carried out. Core‐shell nanomaterials containing nanoparticles of nickel oxide and metallic nickel in a stabilizing nitrogen‐containing polymer matrix were obtained by thermolysis of these monomers. The composition, properties and structure of the nanomaterials were studied using IR spectroscopy, thermal analysis, X‐ray diffraction, atomic force microscopy, scanning electron microscopy, high‐resolution transmission electron microscopy, and energy dispersive X‐ray spectroscopy. The tribological characteristics of NiO nanoparticles as lubricant additives were studied using a pin‐on‐disc tribometer. The coefficient of friction (COF) is the lowest at the optimum concentration of nanoparticles and increasing the concentration above the optimum level leads to an increase in COF.

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Section: Resultsmentioning

confidence: 99%

Metal Chelate Monomers Based on Nickel Maleate and Chelating N‐Heterocycles as Precursors of Core‐shell Nanomaterials with Advanced Tribological Properties

Uflyand

Zhinzhilo

Mukhanova

et al. 2019

Zeitschrift anorg allge chemie

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“…In most of the studies carried out, it is noted that the addition of NPs to the lubricant can increase its tribological characteristics, which largely depend on the composition of the lubricant [39,47,[52][53][54][55][56][57][58].…”

Section: Composition Of Metal-containing Nanolubricantsmentioning

confidence: 99%

Metal-containing nanomaterials as lubricant additives: State-of-the-art and future development

2019

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This review focuses on the effect of metal-containing nanomaterials on tribological performance in oil lubrication. The basic data on nanolubricants based on nanoparticles of metals, metal oxides, metal sulfides, nanocomposities, and rare-earth compounds are generalized. The influence of nanoparticle size, morphology, surface functionalization, and concentration on friction and wear is analyzed. The lubrication mechanisms of nanolubricants are discussed. The problems and prospects for the development of metal-containing nanomaterials as lubricant additives are considered. The bibliography includes articles published during the last five years. Friction 7(2): 93-116 (2019) | https://mc03.manuscriptcentral.com/friction Friction 7(2): 93-116 (2019) 97 |www.Springer.com/journal/40544 | Friction http://friction.tsinghuajournals.comFriction 7(2): 93-116 (2019)

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“…In recent decades, apart from the N‐containing borate esters, elemental metal, metal oxide and its composites nanoparticles have a wide range of applications in lubricating oil because of its unique physical and chemical properties. Furthermore, the tribological behaviours and lubricating mechanisms of nanoparticles have been carried out and discussed.…”

Section: Introductionmentioning

confidence: 99%

“…The lubricating mechanisms are attributed to the filling of the micro asperities (scars and grooves) on the friction surface and the formation of the ultrathin protective film. In addition, some other nanoparticles, such as the Al 2 O 3 and CuO, have attracted increasing attention when used as lubricating oil additives …”

Section: Introductionmentioning

confidence: 99%

“…In addition, some other nanoparticles, such as the Al 2 O 3 and CuO, have attracted increasing attention when used as lubricating oil additives. 23,25 On the basis of the advantages of N-containing heterocyclic borate esters and Cu micro/nanoparticles, many researches have been carried out to study the similar borate esters and Cu microparticles. However, the studies about borate esters together with Cu microparticles as lubricant additives and the interaction between them are rarely concerned.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and tribological properties of the N‐containing heterocyclic borate esters and Cu microparticles as lubricant additives in base oil

Yao

et al. 2017

Lubrication Science

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In this paper, four kinds of N‐containing heterocyclic borate esters and polyvinyl pyrrolidone‐protected Cu microparticles were synthesised and characterised. Their tribological properties as lubricant additives in industrial white oil were evaluated using a four‐ball tribometer, and their lubrication mechanisms were investigated by X‐ray photoelectron spectroscopy. The results showed that the anti‐friction and anti‐wear performance of the base oil can be significantly improved by the addition of N‐containing borate esters and Cu microparticles, and they present synergistic tribological effect. Moreover, X‐ray photoelectron spectroscopy results showed a lubricating tribochemical reaction film containing B2O3, FeB, FeO, Fe2O3 and so on is formed on the worn surface. In addition, Cu microparticles as rolling bearings, which transform sliding friction to rolling sliding and the formation of the Cu microparticles deposited film, are probably responsible for the improvement of tribological performance. Copyright © 2017 John Wiley & Sons, Ltd.

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Improving the AW/EP ability of chemically modified palm oil by adding CuO and MoS2 nanoparticles

Cited by 179 publications

References 37 publications

Metal Chelate Monomers Based on Nickel Maleate and Chelating N‐Heterocycles as Precursors of Core‐shell Nanomaterials with Advanced Tribological Properties

Metal Chelate Monomers Based on Nickel Maleate and Chelating N‐Heterocycles as Precursors of Core‐shell Nanomaterials with Advanced Tribological Properties

Metal-containing nanomaterials as lubricant additives: State-of-the-art and future development

Preparation and tribological properties of the N‐containing heterocyclic borate esters and Cu microparticles as lubricant additives in base oil

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