Experimental study on physical properties of modified jatropha oil-based nanofluids for machining purposes

Talib, Norfazillah; Sukor, Nur Fatin Amira Mohd; Sabri, Ainaa Mardhiah; Abdullah, Haslaile; Sani, Amiril Sahab Abdul

doi:10.1016/j.matpr.2021.09.141

Cited by 3 publications

(3 citation statements)

References 12 publications

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“…From the graph, the acid value of SE (0.56-0.58 mg NaOH/g) is the highest compared to the MJOs. This is due to the MJO's double bond increasing the rigidity of the fatty acid chain, prohibiting the tight packing of fatty acid chains [35]. The acid value of MJOs with the addition of nanoparticles shows improvement compared to MJO itself.…”

Section: Acid Valuementioning

confidence: 99%

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Physical Properties of New Formulation of Hybrid Nanofluid-based Minimum Quantity Lubrication (MQL) from Modified Jatropha Oil as Metalworking Fluid

Sabri

Talib²,

Saad³

et al. 2023

ARFMTS

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As a metalworking fluid, vegetable-based crude jatropha oil (CJO) was used in place of petroleum-based oil. The use of petroleum-oil-based metalworking fluids poses significant environmental and health concerns. Furthermore, it has a large amount of free fatty acid (FFA), promoting physical damage. This research targets to substantially evaluate the modified jatropha nanofluids formulation as a metalworking fluid for machining processes. CJO was chemically altered using the esterification and transesterification processes to produce modified jatropha oil (MJO). To make the nanofluids, MJO was mixed with nanoparticles of Hexagonal Boron Nitride (hBN) + Tungsten Disulfide (WS2) and Hexagonal Boron Nitride (hBN) + Titanium Dioxide (TiO2) at a concentration of 0.025 wt.%. The viscosity and acid value of MJO nanofluids were assessed using ASTM standards and compared to a synthetic ester (SE). All the data indicates that the physical attributes improved throughout storage. It is possible to conclude that MJOhw (MJO + 0.025 wt.% hBN + WS2) has the ability as a long-term metalworking fluid for the machining operation. According to the experiment results, MJOhw surpasses non-additive MJO in terms of kinematic viscosity by 5.91% at 40 °C and 15.6% at 100 °C. During a one-month duration of storage time, MJOhw also improve viscosity index (319) by 18.15%. Furthermore, MJOhw has an acid value ranging from 0.34 to 0.58 mg NaOH/g. Finally, the inclusion of additives aids MJO in improving its qualities by 31.1% reduction in acid value and MJOhw demonstrates outstanding lubricating properties across all samples.

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Section: Acid Valuementioning

confidence: 99%

“…However, the readings are slightly higher than the maximum suitable acid value for machining, 0.5 mg NaOH/g. Getting the lowest acid levels is critical to increasing lubricant performance since it will provide improved corrosion protection [35].…”

Section: Acid Valuementioning

confidence: 99%

Physical Properties of New Formulation of Hybrid Nanofluid-based Minimum Quantity Lubrication (MQL) from Modified Jatropha Oil as Metalworking Fluid

Sabri

Talib²,

Saad³

et al. 2023

ARFMTS

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“…However, crude Tamanu oil (CTO) cannot compete with the synthetic ester in the current market due to its natural plant state's properties such as high viscosity, poor low thermal-oxidative stability, and high acidity [20][21][22][23]. Further structural modification process, such as esterification processes and the addition of additives, is required to improve their current physical and chemical properties to use in industrial applications.…”

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confidence: 99%

Analysis Performance of Modified Tamanu Oil Enhanced with Additives as Potential Green Alternative in Metalworking Fluids

Sani¹,

Radzi²,

Sabri³

et al. 2022

IJIE

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Mineraloils have long been utilizedin industriesas machining lubricants, which contributed to theirdepletion and hick in priceandbeing non-biodegradable, harmful to the environment,and risk to health.Plant-basedoil is more biodegradable, renewable, and environmentally friendlyas a green alternative.However, in their crudestate, plant-based oilsare not up to par with the standard mineral oil used in lubricationin terms of high acidity, low-temperatureperformance,and oxidative instability.Further chemical modification and adding additives had to be made to improve the oil propertiesfor industrial applications.This study focused on the performance of transesterification of Tamanu plant-based oil with Trimethylolpropane (MTO) and Pentaerythritol (MTOP), which mixedwith 1% of Phosphonium Ionic Liquid (PIL) and 10% of Ammonium Ionic Liquid (AIL), producing a series of oil specimens; MTO, MTO+PIL1%, MTO+AIL%, MTOP, MTOP+PIL1%, and MTOP+AIL%.Thesesamplesare then subjected to physicalanalysis to determine the improvement of theirproperties intermsof kinematic viscosityand viscosityindexaswell as undergo a four-ball wear test to the determine the tribology aspects of the lubrication in terms of coefficient of frictions and wear scar diameter, in accordance withASTM standard method.All the results were compared with commercial MWF which synthetic ester (SE)as reference oil. The result of viscosity index revealsthat MTOP+PIL1% had the highest value of 178.76. MTO+AIL10% exhibits the lowest average COF(0.061) compared to other MTOs lubricants. Among MTOP, MTOP+PIL1%also had the lowest average COF which is 0.082. The addition of PIL1% to MTO and MTOP lowered the average scar diameter, 730.77μm and 674.93μmrespectively. With the enhanced properties from chemical modification and additives, Tamanu oil can be proposed as a green alternative fordevelopingthe metalworking fluid industries in the future.

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The Tribological Performance of Nano-Activated Carbon as Solid Additives in Modified Calophyllum Inophyllum Based-Metalworking Fluid

Zamri,

Abdul Sani,

Abd Aziz

et al. 2024

Springer Proceedings in Materials

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Experimental study on physical properties of modified jatropha oil-based nanofluids for machining purposes

Cited by 3 publications

References 12 publications

Physical Properties of New Formulation of Hybrid Nanofluid-based Minimum Quantity Lubrication (MQL) from Modified Jatropha Oil as Metalworking Fluid

Physical Properties of New Formulation of Hybrid Nanofluid-based Minimum Quantity Lubrication (MQL) from Modified Jatropha Oil as Metalworking Fluid

Analysis Performance of Modified Tamanu Oil Enhanced with Additives as Potential Green Alternative in Metalworking Fluids

The Tribological Performance of Nano-Activated Carbon as Solid Additives in Modified Calophyllum Inophyllum Based-Metalworking Fluid

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