Improvement of antifriction properties of motor oils

Arabyan, S. G.; Kulagin, V. V.; Lashkhi, V. L.; Ostapenko, S. P.; Kholomonov, I. A.

doi:10.1007/bf01110470

Cited by 2 publications

(4 citation statements)

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“…The analysis shown in Table 3 demonstrates that the composition of the elements that was detected in MO (calcium, zinc, phosphorus, molybdenum, boron and magnesium) was diluted into about 50% for vegetable oils–mineral engine oil blend (MO:PO and MO:SBO). This shows that the influence of the friction modifier (from molybdenum 50 ) in the vegetable oil–mineral engine oil blends also deteriorated. Thus, the COF for MO:PO and MO:SBO oils were recorded to be in between their pure oil states.…”

Section: Resultsmentioning

confidence: 95%

“…The existence of molybdenum in a spectrochemical analysis for the MO (Table 3) suggests that the additive could be from molybdenum dithiophosphate (MoDTP) as this additive can reduce the friction in motor oil. 50 . In addition to this, the value of COF for MO (0.093) in this study is close to the COF of MoDTP additive in hydrocarbon base oil (COF ¼ 0.08).…”

Section: Friction Analysismentioning

confidence: 99%

“…This shows that the influence of the friction modifier (from molybdenum 50 ) in the vegetable oil-mineral engine oil blends also deteriorated. Thus, the COF for MO:PO and MO:SBO oils were recorded to be in between their pure oil states.…”

mentioning

confidence: 95%

“…The lowest friction response by the commercial MO lubricated specimen was due to the fact that its base oil has been treated by an additive package that may function as a friction modifier. The existence of molybdenum in a spectrochemical analysis for the MO (Table 3) suggests that the additive could be from molybdenum dithiophosphate (MoDTP) as this additive can reduce the friction in motor oil 50 . In addition to this, the value of COF for MO (0.093) in this study is close to the COF of MoDTP additive in hydrocarbon base oil (COF=0.08) 51 .…”

mentioning

confidence: 99%

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Friction and wear response of vegetable oils and their blends with mineral engine oil in a reciprocating sliding contact at severe contact conditions

Bahari

Lewis

Slatter

2017

Proceedings of the Institution of Mechanical Engineers, Part J:

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Although many studies investigating the tribological performance of pure vegetable oils have been conducted, a better understanding of vegetable oil tribological performance at extreme conditions is still needed. Similarly, little work has been carried out to study the influence of the vegetable oils on the performance of a lubricant formed from a blend of vegetable oil and conventional mineral engine oil. This work presents the tribological performance of vegetable oils, and their blends with mineral oil, in a high temperature and contact pressure reciprocating contact. Palm and soybean based vegetable oils were mixed with a commercial mineral engine oil at a 1:1 ratio by volume. The conventional mineral oil was also tested to provide a benchmark. The pure palm oil exhibited lower friction than soybean oil, but for wear performance, this was reversed. The friction performance of the palm oil was competitive to that of the mineral engine oil. The mineral engine oil was far superior in wear resistance over both vegetable oils. When blended with mineral engine oil both vegetable oils demonstrated a reduction in coefficient of friction when compared to their pure oil states. An improvement in wear performance was observed for both a blend of palm oil and mineral engine oil (25% improvement) and that of soybean and mineral engine oil (27% improvement). This work shows that for palm oil and soybean oil, the performance of a blended oil is influenced by its vegetable oil component and that tribological characteristics of vegetable oils are dominant. That said, the significant limitation of these vegetable oils is their ability to provide a satisfactory level of wear resistance. It is suggested that any future work in this area should have a greater emphasis on the enhancement of wear resistance.

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Section: Resultsmentioning

confidence: 95%

Section: Friction Analysismentioning

confidence: 99%

mentioning

confidence: 95%

mentioning

confidence: 99%

See 2 more Smart Citations

Friction and wear response of vegetable oils and their blends with mineral engine oil in a reciprocating sliding contact at severe contact conditions

Bahari

Lewis

Slatter

2017

Proceedings of the Institution of Mechanical Engineers, Part J:

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Friction and Wear Phenomena of Vegetable Oil–Based Lubricants with Additives at Severe Sliding Wear Conditions

Bahari

Lewis

Slatter

2017

Tribology Transactions

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The tribological responses of palm oil and soybean oil, combined with two commercial antiwear additives (zinc dialkyl dithiophosphate and boron compound), were investigated at a lubricant temperature of 100 °C and under severe contact conditions in a reciprocating sliding contact. The friction coefficient of palm oil with zinc dialkyl dithiophosphate was closest to the commercial mineral engine oil, with a 2% difference. The soybean oil with zinc dialkyl dithiophosphate produced a 57% improvement in wear resistance compared to its pure oil state. The existence of boron nitride in vegetable oils was only responsive in reduction of wear rather than friction. The response of commercial antiwear additives with vegetable oils showed a potential for the future improvement in the performance of vegetable oils.

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Improvement of antifriction properties of motor oils

Cited by 2 publications

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Friction and wear response of vegetable oils and their blends with mineral engine oil in a reciprocating sliding contact at severe contact conditions

Friction and wear response of vegetable oils and their blends with mineral engine oil in a reciprocating sliding contact at severe contact conditions

Friction and Wear Phenomena of Vegetable Oil–Based Lubricants with Additives at Severe Sliding Wear Conditions

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