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

Sabri, Ainaa Mardhiah and Talib, Norfazillah and Mohd Saad, Nur Syazwani Filzah and Abdul Sani, Amiril Sahab and Kunar, Sandip and Ahmad, Said and Abdullah, Haslina and Lee Woon Kiow, Lee Woon Kiow and Salleh, Aslinda (2023) Physical Properties of New Formulation of Hybrid Nanofluid-based Minimum Quantity Lubrication (MQL) from Modified Jatropha Oil as Metalworking Fluid. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 101 (1). pp. 1-10. ISSN 2289-7879

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Official URL: https://doi.org/10.37934/arfmts.101.1.110

Abstract

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.

Item Type:	Article
Uncontrolled Keywords:	Modified jatropha oil; hybrid nanofluid; hBN; WS2; TiO2
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA213-215 Engineering machinery, tools, and implements
Divisions:	Faculty of Mechanical and Manufacturing Engineering
Depositing User:	Mr. Mohamad Zulkhibri Rahmad
Date Deposited:	14 Jun 2023 00:44
Last Modified:	14 Jun 2023 00:44
URI:	http://eprints.uthm.edu.my/id/eprint/8816

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