Comparison of an oil-miscible ionic liquid and ZDDP as a lubricant anti-wear additive

Qu, Jun; Luo, Huimin; Chi, Miaofang; Ma, Cheng; Blau, Peter J.; Dai, Sheng; Viola, Michael B.

doi:10.1016/j.triboint.2013.11.010

Cited by 176 publications

(152 citation statements)

References 27 publications

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“…ZDDP as an effective lubricant additive can cause ash deposits as a result of its thermal decomposition, and the zinc in the molecules plays the dominant role in poisoning the emission purification catalysts and polluting the environment [38]. Accordingly, it is necessary to develop high efficiency and alternative additives to reduce the dosage of ZDDP.…”

Section: Compatibility With Zddpmentioning

confidence: 99%

Oil-soluble ionic liquids as antiwear and extreme pressure additives in poly-α-olefin for steel/steel contacts

Huang

et al. 2017

Friction

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Abstract:To enhance the lubricating and extreme pressure (EP) performance of base oils, two types of oil-soluble ionic liquids (ILs) with similar anion albeit dissimilar cations were synthesized. The physical properties of the prepared ILs were measured. The anticorrosion properties of ILs were assessed by conducting corrosion tests on steel discs and copper strips, which revealed the remarkable anticorrosion properties of the ILs in comparison with those of the commercial additive zinc dialkyldithiophosphate (ZDDP). The tribological properties of the two ILs as additives for poly-α-olefin-10 (PAO10) with various mass concentrations were investigated. The tribological test results indicate that these ILs as additives are capable of reducing friction and wear of sliding contacts remarkably as well as enhance the EP performance of blank PAO10. Under similar test conditions, these IL additives exhibit higher lubricating and anti-wear (AW) performances than those of ZDDP based additive package in PAO10. Subsequently, X-ray photoelectron spectroscopy (XPS) and energy dispersive spectrometer (EDS) were conducted to study the lubricating mechanism of the two ILs. The results indicate that the formation of tribochemical film plays the most crucial role in enhancing the lubricating and AW behavior of the mixture lubricants.

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Section: Compatibility With Zddpmentioning

confidence: 99%

Oil-soluble ionic liquids as antiwear and extreme pressure additives in poly-α-olefin for steel/steel contacts

Huang

et al. 2017

Friction

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“…Two approaches have been explored concerning the use of ILs in lubrication: as pure lubricants or base stocks, but this solution has the problem of the higher cost of the ILs compared with hydrocarbon oils, and as lubricant additives, which is a cheaper solution even though the low solubility of ILs in non-polar hydrocarbon oils [33]. The friction and wear behaviour of ILs as additive or as pure lubricant have been studied using synthetic and mineral oils, or even fully formulated oils, as base oils or reference samples [27,[33][34][35] .…”

Section: *Manuscript Click Here To View Linked Referencesmentioning

confidence: 99%

“…The friction and wear behaviour of ILs as additive or as pure lubricant have been studied using synthetic and mineral oils, or even fully formulated oils, as base oils or reference samples [27,[33][34][35] . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 The additivation value of fully formulated oils with ILs needs further consideration and research.…”

Section: *Manuscript Click Here To View Linked Referencesmentioning

confidence: 99%

Ionic liquids as an additive in fully formulated wind turbine gearbox oils

Monge

González

Battez

et al. 2015

Wear

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“…This fact provoked the introduction of new and more stable ILs based on [FAP] and [NTf 2 ] anions [37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53], which present enhanced tribological properties due to the formation of fluoride tribofilms, especially at high loads [54]. Recently, phosphonium cation-based ILs have been introduced in this field because of their growing commercial availability and good tribological performance [26,[55][56][57][58][59][60][61][62]. Finally, taking into account the importance of thermal stability in the lifetime of lubricants and additives, the determination of thermal models has become an interesting research topic from scientific and technical points of view.…”

Section: Introductionmentioning

confidence: 99%

Isoconversional kinetic analysis applied to five phosphonium cation-based ionic liquids

et al. 2017

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Thermal degradation of five phosphonium cation-based ionic liquids ([P 66614 outperforming the other ones in both pyrolytic and oxidising conditions. Although the thermal degradation mechanism is affected by atmospheric conditions, the degradation trend remains practically constant. As the dynamic methodology usually overestimates the long-term thermal stability, an isoconversional methodology is better for predicting the long-term thermal stability of these ionic liquids in order to be used as base oil or additive in lubricants formulation. Finally, the model-free methodology can predict at lower costs the ILs performance in isothermal conditions. Highlights• Weakly coordinating anions provoke good thermal stability of ILs.• • Isoconversional methods are better than dynamic ones for long-term thermal studies.• Activation energy behavior at low conversions is related to a single reaction.• Model-free methodology can predict the ILs performance in isothermal conditions.

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Comparison of an oil-miscible ionic liquid and ZDDP as a lubricant anti-wear additive

Cited by 176 publications

References 27 publications

Oil-soluble ionic liquids as antiwear and extreme pressure additives in poly-α-olefin for steel/steel contacts

Oil-soluble ionic liquids as antiwear and extreme pressure additives in poly-α-olefin for steel/steel contacts

Ionic liquids as an additive in fully formulated wind turbine gearbox oils

Isoconversional kinetic analysis applied to five phosphonium cation-based ionic liquids

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