A comparative study on stability, thermal conductivity, and rheological properties of nanolubricant using carbon-based additive

Puspitasari, Poppy and Permanasari, Avita Ayu and Habibi, Ilham Akbar and Pramono, Diki Dwi and Abdullah, Muhammad Ilman Hakimi Chua (2024) A comparative study on stability, thermal conductivity, and rheological properties of nanolubricant using carbon-based additive. Jurnal Tribologi, 42. pp. 33-48. ISSN 2289-7232

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Abstract

This study investigates different thermophysical properties of lubricants added with fullerene, graphene, single-walled carbon nanotubes, double-walled carbon nanotubes, and multi-walled carbon nanotubes nanoparticles, with engine oil 10W-30 as the basic fluid. The samples of nanoparticles were prepared in 0.1wt% using two stages synthesis method. Further, we examined the nanoparticle’s morphology, as well as the nanolubricants stability, viscosity, and thermal conductivity. Results show that the SWCNT has the smallest particle size then other nanoparticles. All nanolubricants stable after 3 days sonication. The dynamic viscosity test results show that the lubricant with MWCNTs has the highest viscosity, because the entangled structure of MWCNTs increases surface interaction, when dispersed in the fluid. The results of the thermal conductivity test on fullerene, graphene, SWCNT, DWCNT, and MWCNT nanolubricant indicate increasing thermal conductivity compared with base oil. The shape and size of nanoparticles affect thermal conductivity, cylindrical (Single-walled Carbon Nanotubes, Double-walled Carbon Nanotubes, and Multi-walled Carbon Nanotubes) and buckyball (Fullerene) structures have better thermal conductivity enhancement compared to platelet structure (Graphene). The shape, structure and size of the particles have an influence on stability, viscosity and thermal conductivity.

Item Type: Article
Uncontrolled Keywords: Carbon-based additive, Nanolubricant, Oil SAE 10W-30, Rheology, Stability, Thermal conductivity, Viscosity
Divisions: Faculty Of Mechanical Technology And Engineering
Depositing User: Sabariah Ismail
Date Deposited: 05 Mar 2025 10:27
Last Modified: 05 Mar 2025 10:27
URI: http://eprints.utem.edu.my/id/eprint/28461
Statistic Details: View Download Statistic

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