Formulating lubricating oils

Bart, J. C. J.; Gucciardi, Emanuele; Cavallaro, S.

doi:10.1533/9780857096326.351

Cited by 14 publications

(12 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Borate esters achieve good film formation on steel surfaces during friction by formation of

B O_{3}^{3 prefix-}

and

C H_{3}^{+}

through the mechanism of mechanical degradation in which they penetrate the C‐O bond . However, borate esters are noted for high hydrolytic tendencies, because of the B‐S bond, which can undergo hydrolytic reaction with any available moisture. Although this can be remedied to a reasonable extent by linking the S and B atoms using an alkyl linker, without this, Vanlube 73 will enjoy preference over Vanlube 289.…”

Section: Surface‐protective Agents and Vegetable Oilsmentioning

confidence: 99%

“…The mechanisms of operation of additives depend on their chemistry and that of the base stock, and the thermal and mechanical loadings experience in service and the reference therein had established that conventional additives used in mineral oils can serve in vegetable oils, recent publication by Bart et al . have it that VOs have no compatibility with such customary additives.…”

Section: Introductionmentioning

confidence: 99%

“…While several approaches such as genetic modification, 3,4 extraction methods, 5,6 refining, diluent, 7 and chemical modification 4,[8][9][10] are being made towards improved base oil development, the aspect of additives selection and/or development for the formulation are equally very critical. Base oils, as well as their blends, do not have the capabilities to meet most requirements for modern lubricants applications; they have needs of supports and protection from additives.…”

Section: Introductionmentioning

confidence: 99%

“…Base oils, as well as their blends, do not have the capabilities to meet most requirements for modern lubricants applications; they have needs of supports and protection from additives. 5,11 Additives are mixtures of chemical compounds used to blend the base oil, to upgrade the inherent lubricant properties, to impart new properties to the oil for performance and protection, and also to suppress some unwanted behaviour of the base oil or other additive(s) that can affect the services and longevity of the lubricant, and other components in the service environment. They are present in the oil as components surface-protective agents (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…14 The mechanisms of operation of additives depend on their chemistry and that of the base stock, and the thermal and mechanical loadings experience in service. 15 While articles by some researchers into lubricants like Joseph and Sharma 14 and the reference therein had established that conventional additives used in mineral oils can serve in vegetable oils, recent publication by Bart et al 5 have it that VOs have no compatibility with such customary additives. The latter supported Miller, 16 who had earlier revealed that earlier-generation formulators of lubricants from bio-based stocks had used similar performance chemistry to mineral oils and had products short of industrial lubricants requirements.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Suitable additives for vegetable oil‐based automotive shock absorber fluids: an overview

Bongfa

Samion

Hamid

et al. 2016

Lubrication Science

View full text Add to dashboard Cite

Formulation of a cost-effective, high-performance and eco-friendly lubricant, largely depends on the base oil quality, then the selection of suitable additives and their proportions. Vegetable oils, identified to be eco-friendly, renewable, future-available and cost-effective treasures for lubricant formulation, apart from processing, will rely much on suitable additives to meet the performance requirements for automotive shock absorber (ASA) fluids. Additives that will guarantee performance, longevity and eco-friendliness of formulated vegetable-based functional fluids have to be uncommonly effective, resistant to depletion, non-toxic and highly biodegradable. Their selection in these regards will require skills and experience, which will harness the various arms of synergism as effective tools to succour the known weaknesses of the base oil. This is a review on additives that could be used in formulation of vegetable oil-based (ASA) fluids. The outcome shows that there are customary and novel additives that are suitable for formulating vegetable oil-based ASA fluids.

show abstract

“…Borate esters achieve good film formation on steel surfaces during friction by formation of

B O_{3}^{3 prefix-}

and

C H_{3}^{+}

Section: Surface‐protective Agents and Vegetable Oilsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Suitable additives for vegetable oil‐based automotive shock absorber fluids: an overview

Bongfa

Samion

Hamid

et al. 2016

Lubrication Science

View full text Add to dashboard Cite

show abstract

A modified isooctane‐based DNA extraction method from crude oil

Alibrandi,

di Primio,

Bartholomäus

et al. 2023

mLife

View full text Add to dashboard Cite

Microbes from oil reservoirs shape petroleum composition through processes such as biodegradation or souring. Such processes are considered economically detrimental and might pose health and safety hazards. It is therefore crucial to understand the composition of a reservoir's microbial community and its metabolic capabilities. However, such analyses are hindered by difficulties in extracting DNA from such complex fluids as crude oil. Here, we present a novel DNA extraction method from oils with a wide American Petroleum Institute (API) gravity (density) range. We investigated the ability to extract cells from oils with different solvents and surfactants, the latter both nonionic and ionic. Furthermore, we evaluated three DNA extraction methods. Overall, the best DNA yields and the highest number of 16S rRNA reads were achieved with isooctane as a solvent, followed by an ionic surfactant treatment using sodium dodecyl sulfate and DNA extraction using the PowerSoil Pro Kit (Qiagen). The final method was then applied to various oils from oil reservoirs collected in aseptic conditions. Despite the expected low cell density of 101–103 cells/ml, the new method yielded reliable results, with average 16S rRNA sequencing reads in the order of 41431 (±8860) per sample. Thermophilic, halophilic, and anaerobic taxa, which are most likely to be indigenous to the oil reservoir, were found in all samples. API gravity and DNA yield, despite the sufficient DNA obtained, did not show a correlation.

show abstract

Surface quality investigation in surfactant-based EDM of Inconel 617 using deep cryogenically treated electrodes

Ishfaq

Sana

Waseem

et al. 2023

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Surface quality governs the physical, mechanical, tribological, physio-chemical, and biological properties of materials. Considering the excellent mechanical characteristics of Inconel 617 and the nature of its intended applications, electric discharge machining is generally engaged. However, there is still a need to uplift the surface quality of machined parts to improve their working life and performance. Therefore, this study revealed the potential of deep cryogenically treated (DCT) electrodes under dielectrics modified with span and tween in the said context using a full factorial experimental design. Experimental findings are deeply investigated by employing 3D surface profilometry, scanning electron, and optical microscopy. Cryogenically treated electrode(s) have demonstrated a better surface quality in comparison to the non-treated electrodes, such as DCT Cu has provided a 25.5% lower roughness value than non-treated Cu. Referring to the role of additives, there exists a reduction of 32.5% in roughness when DCT brass is used instead of typical brass using a mixture of span-20 (S-20) and kerosene as a dielectric. The surface finish given by the cryogenically treated brass is 18.99% better when compared to the average value given by all cryogenically treated electrodes considered in this study. It has also been revealed that tween-based dielectrics gave 83% better surface finish than span-based dielectrics with DCT electrodes.

show abstract

Formulating lubricating oils

Cited by 14 publications

References 47 publications

Suitable additives for vegetable oil‐based automotive shock absorber fluids: an overview

Suitable additives for vegetable oil‐based automotive shock absorber fluids: an overview

A modified isooctane‐based DNA extraction method from crude oil

Surface quality investigation in surfactant-based EDM of Inconel 617 using deep cryogenically treated electrodes

Contact Info

Product

Resources

About