Evaluation of lubricant properties of polyolester oil blended with sesame oil-An experimental investigation

Narayanasarma, Subramani; Kuzhiveli, Biju T.

doi:10.1016/j.jclepro.2020.125347

Cited by 19 publications

(6 citation statements)

References 33 publications

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“…26 Bands that appear at 2922-2954 cm À1 are caused by C H vibrations, specifically the asymmetrical stretching of CH(CH 2 ) and the asymmetrical stretching of CH 3 . 27,28 The absorption spectrum intensity maps of the two non-edible vegetable oils; C100 and J100; were similar as shown in Figure 2. The small hump at 586 cm À1 was caused by the stretching vibrations of C O in the carbohydrate and glycoside groups.…”

Section: Ftir Spectra Analysismentioning

confidence: 69%

Formulation and tribological performance of engine oil blended with various non‐edible vegetable oils

Basiron

Abdollah

Abdullah

et al. 2023

Lubrication Science

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This present study formulated eco‐friendly lubricants by combining non‐edible vegetable oils with a mineral oil and investigated their efficacy on the friction and wear characteristics of four AISI 52100 chrome steel balls. Multiple formulations containing varying combinations of 0 to 100 vol% of a mineral oil SAE 15W40 (S100), castor oil (C100), and jatropha oil (J100) were prepared using the sonification technique in an ultrasonic homogeniser. A fourier transform spectrometer (FTIR) was then used to investigate the molecular vibrations of each formulation. A tribological test was also performed with a four‐ball tribometer according to ASTM D4172‐94 engineering standards. Finally, a scanning electron microscope (SEM) equipped with an energy dispersive X‐ray spectroscope (EDX) was used to examine surface morphologies. The 80% S100, 10% C100, and 10% J100 (S80C10J10) formulation provided excellent tribological performance as it contained fatty acids composed of carbohydrates and carbonyl groups, particularly polysaccharides and glycerols.

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Section: Ftir Spectra Analysismentioning

confidence: 69%

Formulation and tribological performance of engine oil blended with various non‐edible vegetable oils

Basiron

Abdollah

Abdullah

et al. 2023

Lubrication Science

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“…1 H NMR (400 MHz, CDCl 3 ) δ 5.37 (d, J = 4.0 Hz, 1H), 4.74−4.53 (m, 1H), 2.74−2.65 (m, 2H), 2.64−2.55 (m, 2H), 2.32 (d, J = 7.8 Hz, 2H), 1.99 (t, J = 15.5 Hz, 2H), 1.91− 1.75 (m, 3H), 1.67−1.24 (m, 12H), 1.12 (td, J = 15.4, 6.9 Hz, 6H), 1.02 (s, 6H), 0.91 (d, J = 6.5 Hz, 3H), 0.86 (dd, J = 6.6, 1.5 Hz, 6H), 0.68 (s, 3H). 13…”

Section: Experiments Sectionmentioning

confidence: 99%

“…1 H NMR (400 MHz, CDCl 3 ) δ 5.32 (d, J = 4.0 Hz, 1H), 4.67− 4.40 (m, 1H), 2.64 (dd, J = 9.7, 6.7 Hz, 2H), 2.52 (t, J = 4.9 Hz, 4H), 2.32−2.22 (m, 2H), 2.06−1.87 (m, 2H), 1.81 (d, J = 10.3 Hz, 3H), 1.63−1.37 (m, 11H), 1.34−1.18 (m, 24H), 1.17−1.02 (m, 8H), 0.98 (s, 6H), 0.90−0.84 (m, 14H), 0.64 (s, 3H). 13 ). The thermal stabilities of ILs and base oils were tested by an STA449F3 simultaneous thermogravimetry instrument.…”

Section: Preparation Of [Colc 4 ][Bs 12mentioning

confidence: 99%

“…Conventional lubricating oil is composed of base oil, presenting 85% or more of the formulation, and additives, constituting the remaining 15% . Therefore, the essential technical solution in formulating biodegradable lubricants is the choice of sustainable base stocks and the exploitation of multifunctional additives. , In terms of base oil, various vegetable oils and synthetic esters with remarkable biodegradability, renewability, and nontoxicity have been proven to be effective as base oils with excellent friction reduction and antiwear in the formulation of biodegradable lubricants. , However, petroleum-based oil consisting predominantly of hydrocarbons, which are often environmentally hazardous and difficult to biodegrade, still dominates the product market of base stocks and will presumably continue to play important roles in future lubrication applications mainly because it is inexpensive. , Although mineral oil cannot be completely replaced by vegetable oil and synthetic ester thus far, the development of functional additives to refrain from harmful substances or to accelerate the decomposition of hydrocarbons is indeed indispensable. , Currently, commonly used lubrication additives still do not take into account the factors of the ecological environment. For example, conventional zinc dialkyl dithiophosphate (ZDDP) and molybdenum dithiocarbamate (MoDDP) with excellent lubrication performance are strictly restricted due to their hard biodegradability and ecotoxicity. , Moreover, certain sulfur- and phosphorus-containing organic compounds used as high-performance lubricant additives also cause environmental pollution .…”

Section: Introductionmentioning

confidence: 99%

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Natural Cholesterol-Derived Ionic Liquids Enhancing the Antiwear Property and Biodegradability of Mineral/Vegetable Oils

Zheng

Liu

et al. 2022

ACS Sustainable Chem. Eng.

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Using natural products as raw materials to prepare lubricating additives that can enhance both the tribological performance and biodegradability of base oils has huge application potential. Here, two natural cholesterol-derived ionic liquids (ILs) with long-chain alkyl amines or alkyl betaines as cations were successfully synthesized. The tribological properties of the two ILs as lubricating oil additives in white oil and castor oil were tested on the steel interface at room temperature and high temperature. The biodegradability of the ILs was evaluated according to the CECL-33-A-9 test method. The results showed that both ILs have an excellent ability to enhance the antiwear properties and to accelerate the biodegradation of base oils. Therein, the wear volume of white oil with 1.5 wt % alkyl amine IL decreases by 80%, the biodegradability at 21 days increases to 75%, the wear volume of castor oil with 1.5 wt % alkyl betaine IL decreases by 42%, and the biodegradability at 21 days increases to 85%. The improvement of the antiwear ability of base oils by the ILs was mainly ascribed to the formation of a more efficient boundary lubrication film due to the adsorption and tribochemical reactions of the ILs on the contact interfaces. The promotion of biodegradation is attributed to the nutrients needed for the early reproduction of microorganisms provided by cholesterol-based ILs and the increase in oil–water interfacial area owing to the surface activity of cations, thus causing microorganisms to better metabolize lubricants. Hence, it is feasible for some natural compounds to contribute to the development of green and sustainable products and processes.

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“…One of the economically feasible solutions is to convert vegetable oil into a synthetic polyol ester, namely, trimethylolpropane ester (TMP ester), using transesterification. On top of an improved thermo-oxidative stability [4,5], numerous research studies on such polyol esters derived from vegetable oil have produced biolubricants with a lubricity that is on par or superior to conventional lubricants [6,7]. To date, vegetable oils, such as palm oil [8], jatropha oil [9], rice bran [4], karanja oil [4], sunflower oil [9], soybean oil [9,10] and cotton seed oil [11], have been transesterified to produce TMP esters.…”

Section: Introductionmentioning

confidence: 99%

Boundary Lubricity of Vegetable-Oil-Derived Trimethylolpropane (TMP) Ester

Lee

Chong

et al. 2022

Lubricants

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Vegetable-oil-based biolubricants are an excellent alternative to conventional lubricants. Instead of focusing on novel feedstocks, these biolubricants should be further elucidated based on their fatty acid composition, which influences their tribological properties. Therefore, the study utilises gene expression programming (GEP) to derive a boundary lubricity model for vegetable-oil-derived trimethylolpropane (TMP) esters, considering the fatty acid composition (saturation and monounsaturation levels), load and speed. Neat vegetable oil and blends from seven feedstocks are selected following a wide range of fatty acid profiles to synthesise TMP esters using a two-stage transesterification process. The TMP esters are spin-coated on wear discs that are subsequently rotated against a ball using a purpose-built tribometer. The frictional performance of the TMP esters with balanced saturation and monounsaturation levels of fatty acid are measured to improve it at higher speeds. The GEP model is statistically evaluated by adopting the friction data, a showing good generalisation and predictability capability. The model demonstrates that friction decreases with increasing saturation levels of the TMP ester. The GEP model for vegetable oil TMP esters allows for the tribological performance prediction of TMP esters following the fatty acid profile, providing a platform to optimise such biolubricant for desired applications.

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Evaluation of lubricant properties of polyolester oil blended with sesame oil-An experimental investigation

Cited by 19 publications

References 33 publications

Formulation and tribological performance of engine oil blended with various non‐edible vegetable oils

Formulation and tribological performance of engine oil blended with various non‐edible vegetable oils

Natural Cholesterol-Derived Ionic Liquids Enhancing the Antiwear Property and Biodegradability of Mineral/Vegetable Oils

Boundary Lubricity of Vegetable-Oil-Derived Trimethylolpropane (TMP) Ester

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