Friction and wear characteristics of the castor oil with TiO2 as an additives

Singh, Yashvir; Chaudhary, Vaibhav; Pal, Vinay

doi:10.1016/j.matpr.2020.02.612

Cited by 23 publications

(12 citation statements)

References 21 publications

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“…The viscosity index of lubricants is a vital parameter to determine their general quality; the higher the viscosity index, the more stable the viscosity of a lubricant is in a greater range of temperatures. It is important to mention that this enhancement in VI is similar to that observed with TiO 2 as an additive [ 14 ]. Considering the impact of xanthophylls on the pressure–viscosity coefficient, a reduction of up to 50% was observed ( CO + 0.001 A ) concerning castor oil.…”

Section: Resultssupporting

confidence: 73%

“…Table 2 summarizes the physical properties of the bio-lubricants. It can be noted that the obtained values for physical properties of castor oil were closed to those reported in the literature [ 8 , 13 , 14 ]. However, the density of castor oil at 40 °C slightly increased with all additives concerning the neat oil.…”

Section: Resultssupporting

confidence: 56%

“…Other additives had exhibited a slight increase in both the density and viscosity of castor oil. Some examples are butylated hydroxy toluene, butyalted hydroxy anisole, and gallic acid [ 12 ]; and nanoparticles of hexagonal boron nitride [ 13 ] and titanium dioxide [ 14 ]. This phenomenon could be due to the high density and concentration of the employed additives.…”

Section: Resultsmentioning

confidence: 99%

“…Wang et al [ 13 ] studied the friction and wear mechanisms of castor oil with the addition of hexagonal boron nitride nanoparticles (hBN), under low load and high-speed tests (10 min duration), their results exposed an increase in friction up to 22% when 8 wt.% hBN nanoparticles were added to castor oil in comparison with that of neat oil, but the wear track width decreased by 28%. Singh et al (2020) [ 14 ] reported friction and wear characteristics of castor oil with titanium dioxide (TiO 2 ) nanoparticles as additives. The authors found higher friction (about 12% increase) and wear (K on the order of 10 −4 and nearly 11% higher) with castor oil + 0.3 v% of TiO 2 .…”

Section: Resultsmentioning

confidence: 99%

“…Wang et al (2018) [ 13 ] studied the friction and wear performance of castor oil with the addition of hexagonal boron nitride nanoparticles (hBN) and found prominent reductions in friction and wear with 1 wt.% and 5 wt.% of hBN, respectively. Similarly, Singh, et al (2020) [ 14 ] investigated the friction and wear properties of castor oil with TiO 2 ; under the tested conditions, they principally found notable reductions in friction and wear with a concentration of 0.2 v% TiO 2 nanoparticles. Karthikeyan et al (2021) [ 15 ] analyzed the addition of molybdenum disulfide (MoS 2 ) nanoparticles to castor oil without adding surfactants or property modifiers.…”

Section: Introductionmentioning

confidence: 99%

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On the Tribological and Oxidation Study of Xanthophylls as Natural Additives in Castor Oil for Green Lubrication

et al. 2021

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The present study focuses on an introductory analysis of the use of three xanthophylls as additives for green lubricant applications. For this purpose, the additives were characterized by FTIR and 1H-NMR techniques, and the bio-lubricants were described by their physical properties. The effect of the natural compounds on the friction and wear properties of bio-lubricants were evaluated by sliding friction tests under boundary conditions, as confirmed by an analysis of the lubricating film thickness. The antioxidant capacity was analyzed by FTIR spectroscopy. It was observed better wear protection in castor oil with xanthophylls than without these additives. The wear rate was reduced up to 50% compared with neat oil. Lesser beneficial effects were appreciated in friction coefficient since it was increased 25%. The best contribution was observed with astaxanthin as an additive. In addition, a significant improvement in the oxidation of castor oil, complemented with this additive, was exhibited by FTIR analysis. It was found that xanthophylls could be employed as additives for totally biodegradable lubricant applications since they have better tribological and antioxidant behavior than current additives.

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Section: Resultssupporting

confidence: 73%

Section: Resultssupporting

confidence: 56%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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On the Tribological and Oxidation Study of Xanthophylls as Natural Additives in Castor Oil for Green Lubrication

et al. 2021

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Preparation of Diisooctyl Phosphate‐Modified Ultra‐Small Zinc Oxide Nanoparticle and Investigation of Its Tribological Properties as Additive in Alkylnaphthalene

Li,

Fan,

Song

et al. 2024

Lubrication Science

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ZnO nanoparticle surface‐modified by diisooctyl phosphate (P204) was prepared by liquid‐phase in situ surface modification technique with zinc acetate as the raw material, P204 as the modifier and anhydrous ethanol as the solvent. The morphology and microstructure of the P204‐ZnO nanoparticle were characterised by transmission electron microscopy, X‐ray diffraction and Fourier transform infrared spectrometry. Its thermal stability was evaluated by thermogravimetric analysis; and its tribological properties as the additive in alkylnaphthalene were evaluated with an SRV‐5 friction and wear tester in reciprocal sliding mode. The results show that the as‐prepared P204‐ZnO nanoparticle has an average particle size of about 4 nm and a P204 content of about 42% (mass fraction); and the surface modifier is grafted onto the surface of ZnO nanoparticle by physical adsorption. With a mass fraction of 0.5% in alkylnaphthalene base oil, P204‐ZnO nano‐additive can mildly reduce the friction coefficient and drastically reduce the wear rate of the steel–steel sliding pair. This is due to the formation of the composite tribofilm via the adsorption and deposition of the nano‐additive on rubbed steel surfaces as well as the tribochemical reactions of the modifier P204 yielding phosphate and of steel substrate yielding iron oxides. The as‐formed composite tribofilm with a thickness of about 20 nm, consisting of phosphate and iron oxides as the binder as well as deposited ZnO nanoparticle as the filling phase, is responsible for the excellent friction‐reducing and antiwear abilities of P204‐ZnO nano‐additive for the steel sliding contact.

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The Permeability of Palm Oil Through Open Cell Aluminum Foam Under the Influence of Gravity

Idriss

Kasolang

2022

Lecture Notes in Mechanical Engineering

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Friction and wear characteristics of the castor oil with TiO2 as an additives

Cited by 23 publications

References 21 publications

On the Tribological and Oxidation Study of Xanthophylls as Natural Additives in Castor Oil for Green Lubrication

On the Tribological and Oxidation Study of Xanthophylls as Natural Additives in Castor Oil for Green Lubrication

Preparation of Diisooctyl Phosphate‐Modified Ultra‐Small Zinc Oxide Nanoparticle and Investigation of Its Tribological Properties as Additive in Alkylnaphthalene

The Permeability of Palm Oil Through Open Cell Aluminum Foam Under the Influence of Gravity

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