Effect of Surfactants on the Tribological Behavior of Organic Carbon Nanotubes Particles Additive under Boundary Lubrication Conditions

Opia, Anthony Chukwunonso; Hamid, Mohd. Kamaruddin Abd.; Samion, Syahrullail; Johnson, Charles C.; Mamah, Stanley Chinedu; Ali, A. B. M. Shawkat; Izmi, Mazali Izhari; Hilmi, Che Daud Zul; Khan, Muhammad Salman; Rahim, Abu Bakar Abd

doi:10.2474/trol.17.19

Cited by 10 publications

(11 citation statements)

References 47 publications

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“…Surfactant was added as a means of enhancing the tribological performance of PTFE-blended jatropha oil by establishing good solution stability while decreasing agglomeration during lubrication. This enhancement efficacy was reported by Gulzar et al, 34 and Opia et al 35 According to recent findings, excellent lubricant lubricity is complemented by good lubricant stability. Figure 7 displays the COF for the optimal PTFE concentration with the addition of various SDBS concentrations using 40 kg at operating speed of 800 rpm and 1200 rpm under 75 °C, along with the corresponding percentage reduction in wear scar diameter (WSD) and wear depth (WD).…”

Section: Resultssupporting

confidence: 74%

Tribological characteristics and film behaviour of polytetrafluoroethylene in jatropha with sodium dodecyl sulphate as surfactant

Opia,

Bin Abdollah,

Amiruddin

et al. 2024

Tribology - Materials, Surfaces & Interfaces

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In this research, a bio lubricant was developed utilising eco-friendly constituents of jatropha oil, polytetrafluoroethylene (PTFE) and sodium dodecyl benzenesulphonate (SDBS), characterised and tested with four-ball tribometer under ASTM D2783 standard. The tribological performance in terms of friction, wear, load carrying ability and evaluation of the film behaviour on stability and strength was conducted. According to Fourier transform infrared spectroscopy (FT-IR) of the study, the presence of the two additives in base jatropha oil demonstrated good functional groups desired for lubricant lubricity. In comparison to base jatropha under 40 kg and 1200 rpm, blended 1 wt-% PTFE + 0.8 wt-% SDBS additives produced an outstanding reduction in coefficient of friction (61.4%) and good load carrying strength among all the samples tested, but commercial shell oil (CSO) outperformed under wear resisting potential. Scanning electron microscopy (SEM) and a 3D surface profilometer were used to examine the rubbed surfaces. Findings indicate that the boundary film on the worn surface was made up of PTFE and SDBS nanoparticles that deposited film elements of sulphur and higher carbon content. The decrease in the percentage of iron (Fe) indicates that tribo-pairs were separated from direct contact under additives usage. According to the research, adding an anti-wear substance to the new formulation could increase wear protection, thus effectively making it comparable with CSO counterpart.

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Section: Resultssupporting

confidence: 74%

Tribological characteristics and film behaviour of polytetrafluoroethylene in jatropha with sodium dodecyl sulphate as surfactant

Opia,

Bin Abdollah,

Amiruddin

et al. 2024

Tribology - Materials, Surfaces & Interfaces

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“…To ensure the reproducibility of each experiment, each test was carried out three times. The wear specific rate of the flat steel used was calculated using equations (1) and (2) according to Opia et al 20 The operation conditions used in this study are presented in Table 2. …”

Section: Methodsmentioning

confidence: 99%

Tribological performance evaluation of organic polymer as additives in vegetable oil using steel materials

Opia,

Abdollah,

Kameil

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part J:

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An investigation on lubricating oil rheological behavior and tribological effect on sliding contact was conducted. The study employed organic polymer Eichhornia Crassipes carboxymethyl cellulose (EC-CMC) polymer as additive in corn oil (CO) and sunflower oil (SFO). The experiment was performed using high frequency reciprocating rig (HFRR). Analysis on viscosity behavior was done with three samples of EC-CMC concentration (0.5 wt.%, 1 wt.%, and 1.5 wt.%) under 100 ml volume of base CO and SFO samples. Rheological studies on the polymer concentrations show good results with 0.5 wt.%, 1 wt.%, and 1.5 wt.%, but indicated optimal on 1 wt.% EC-CMC especially from temperature beyond 100°C for the two selected lubricants. Under friction and wear analysis, the test was conducted using 1 wt.% EC-CMC. The base lubricants CO and SFO yielded coefficient of friction and wear scar diameter of 0.087, 11.2 × 10−6 mm3/N/m and 0.080, 10.5 × 10−6 mm3/N/m, respectively. During the testing, the use of 1 wt.% EC-CMC blended SFO gives lower coefficient of friction than CO both at base state and inclusion with additive. This yielded COF reduction by 22.5% and 13.8% for 1 wt.% EC-CMC + SFO and 1 wt.% EC-CMC + CO, respectively, but gives better reduction under SAE-5W-30. The analysis concluded that application of 1 wt.% concentration of EC-CMC in base oil lubricant for both SFO and CO significantly enhanced the properties. The utilization of this sustainable product certainly will contribute in solving global pollution challenges.

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“…The MWCNTs NPs, base rapeseed oil, SAE 5W 30 commercial standards, and the chrome ball were provided by Atlas Ball and Bearing Co. Ltd. and acquired from Sigma-Aldrich, respectively. To create the final EC-CNTs, the Department of Tribology at Universiti Teknologi Malaysia used Eichhornia crassipes as a raw material before cyclic heating 17) . Opia et al, 17) and Xie et al, 18) describe the process used during formulation of EC-CNTs NPs, employing a ball milling machine and cyclic heating strategy (oven, furnace), with the help of some useful chemicals.…”

Section: Methodsmentioning

confidence: 99%

Comparison on Tribological Behavior of Organic Formulated Carbon Nanotubes and Multi-Walled Carbon Nanotubes in Base Rapeseed Lubricants

Anthony Chukwunonso Opia,

Mohd Fadzli Abdollah,

Amiruddin

2023

Evergreen

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In this research, the tribological behavior of two distinct carbon nanotubes and the mechanisms influencing tribological performance were investigated. High frequency reciprocating rigs (HFRR) were used for the study, along with rapeseed oil as the base lubricant and commercial SAE 5W 30 as the benchmark. The experiment used particle concentrations of 0.5, 1, and 1.5 wt.% for MWCNTs and EC-CNTs, respectively, as lubricant additives. According to tests on the' viscometric properties, blends of both additives at a concentration of 1 wt.% produced the best results in terms of viscosity index. When compared to base lubricant, 1 wt.% MWCNTs performed better in frictional analysis at 80 N than 1 wt.% EC-CNTs, but less well than SAE 5W 30 benchmarks. In comparison to other evaluated samples, 1 wt.% EC-CNT exhibited remarkable results at higher loads of 100 N. Based on the investigation, EC-CNTs showed accumulation of particles at the front and back of the sliding ball under less operating conditions. This restricts the diffusion of the particles to the contact region, but it disappears at higher conditions. At a load of 100N, MWCNT and EC-CNT reduced friction and wear by 29.3%, 40.9%, and 30.8%, 45.5%, while SAE 5W 30 produced 45% and 36.4%, respectively. The ability of the additives to convert the direct sliding contact into a rolling mechanism and the formation of tribo-film were attributed to their successful performance. The outcomes clearly demonstrate that EC-CNTs behaved similarly to MWCNTs and SAE 5W 30 lubricants, making it appropriate for lubrication application.

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Effect of Surfactants on the Tribological Behavior of Organic Carbon Nanotubes Particles Additive under Boundary Lubrication Conditions

Cited by 10 publications

References 47 publications

Tribological characteristics and film behaviour of polytetrafluoroethylene in jatropha with sodium dodecyl sulphate as surfactant

Tribological characteristics and film behaviour of polytetrafluoroethylene in jatropha with sodium dodecyl sulphate as surfactant

Tribological performance evaluation of organic polymer as additives in vegetable oil using steel materials

Comparison on Tribological Behavior of Organic Formulated Carbon Nanotubes and Multi-Walled Carbon Nanotubes in Base Rapeseed Lubricants

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