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Готові списки джерел за темами / Multifunctional Lubricating Oil

Добірка наукової літератури з теми "Multifunctional Lubricating Oil"

Автор: Grafiati

Опубліковано: 18 травня 2024

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Статті в журналах з теми "Multifunctional Lubricating Oil"

1

Ghosh, P., and M. Das. "Biocompatible multifunctional lubricating oil additives." Petroleum Science and Technology 34, no. 15 (August 2, 2016): 1367–73. http://dx.doi.org/10.1080/10916466.2016.1202967.

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2

Upadhyay, Mahua, Gobinda Karmakar, Gurpreet Singh Kapur, and Pranab Ghosh. "Multifunctional greener additives for lubricating oil." Polymer Engineering & Science 58, no. 5 (June 28, 2017): 810–15. http://dx.doi.org/10.1002/pen.24635.

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3

Fan, Bing Li, An Nan Sun, Zheng Jie Li, Yi Wei Guo, Xiao Wen Qi, and Chang Xin Liu. "Experimental Study on Dissolution Stability and Dispersion and their Influence on Tribological Properties for Reducing Friction and Prolonging Life of Armored Vehicle Engine Lubricating Oil Additives." Advanced Engineering Forum 49 (May 31, 2023): 15–27. http://dx.doi.org/10.4028/p-ba6mc5.

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A lubricating oil additive for armored vehicle engine was synthesized by ultrasonic dispersion and physical blending with polyisobutylene and poly alpha olefin as polymer matrix, nanoBN and nanoALN as antifriction materials and polyisobutylene succinimide as surfactant. Polymer-based lubricating oil additive, hydroxyl magnesium silicate powder additive, commercial anti-wear repairing agent Goldway and commercial anti-wear protective agent Chief were dispersed into 10W-40 armored vehicle engine special lubricating oil according to a certain mass fraction. The dissolution stability of different lubricating oil additives in lubricating oil was investigated by standing test. The effects of ultrasonic time and temperature on the dispersion of different kinds of lubricating oil additives in lubricating oil are investigated by using ultrasonic disperser and particle size analyzer. The MDW-5G multifunctional end-face friction and wear tester is used to simulate the actual working process of cylinder liner-piston ring in armored vehicles during driving, and tribological tests were carried out under conventional working conditions to evaluate the tribological properties of different lubricating oil additives. Scanning electron microscope was used to measure and analyze the wear surface morphology and friction interface elements after tribological test, and the lubrication mechanism of lubricating oil additives is revealed. The results show that the polymer-based lubricating oil additive has good dissolution stability and dispersion in lubricating oil. Compared with pure lubricating oil, the average friction coefficient of lubricating oil containing 3wt% polymer-based additives is 0.085, and the friction coefficient decreases by 38.8%. During the friction process, polymer-based lubricating oil additives form a self-repairing oil film to cover the surface of the sample through a series of complex physical and chemical reactions, which reduces the friction and wear between the grinding pairs and improves the lubricating performance of lubricating oil.

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4

Li, H., Z. P. Hou, and X. H. Zhang. "Preparation and tribological properties of GO supported MoO3 composite nanomaterials." Digest Journal of Nanomaterials and Biostructures 18, no. 4 (December 4, 2023): 1395–407. http://dx.doi.org/10.15251/djnb.2023.184.1395.

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Анотація:

The MoO3/GO composites were synthesized via a hydrothermal method. The performance of these composites as lubricating oil additives was investigated by a multifunctional friction testing machine. And the lubrication mechanism of MoO3/GO in base oil was discussed based on SEM and EDS test data. The results demonstrate that MoO3/GO composites as additives exhibit excellent anti-friction and anti-wear properties. This is mainly due to the synergistic effect between the lubricating film formed by the composite material on the wear surface and the self-healing ability of nano-MoO3, which can effectively fill and repair wear scars while reducing friction and wear on the steel disc surface.

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5

Karmakar, Gobinda, and Pranab Ghosh. "Soybean Oil as a Biocompatible Multifunctional Additive for Lubricating Oil." ACS Sustainable Chemistry & Engineering 3, no. 1 (December 2, 2014): 19–25. http://dx.doi.org/10.1021/sc500685r.

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6

Talukdar, Sujit, and Pranab Ghosh. "Biodegradable vegetable oil polymer as a multifunctional lubricating oil additive." Journal of Macromolecular Science, Part A 57, no. 4 (November 23, 2019): 244–49. http://dx.doi.org/10.1080/10601325.2019.1691449.

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7

Ren, Tianhui, Yong Wan, Qunji Xue, and Hanqing Wang. "A study of alkylthiomethylbenzotriazoles as multifunctional lubricating oil additives." Lubrication Science 7, no. 2 (January 1995): 163–69. http://dx.doi.org/10.1002/ls.3010070205.

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8

Bordubanova, E. G., E. Yu Oganesova, A. S. Lyadov, and O. P. Parenago. "A NEW MULTIFUNCTIONAL LUBRICANT ADDITIVE BASED ON A SULFUR-CONTAINING DERIVATIVE OF 2,6-DIMETHYLPHENOL." Доклады Российской академии наук. Химия, науки о материалах 512, no. 1 (September 1, 2023): 59–64. http://dx.doi.org/10.31857/s2686953523600290.

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Анотація:

New dialkyldithio derivatives of 2,6-dimethylphenol have been synthesized and characterized. For the first time, the polyfunctional properties of these compounds have been studied as additives to lubricating oils in the processes of friction and wear in the boundary friction regime, as inhibitors of high-temperature oxidation of hydrocarbons, and as protectors of metal surfaces. It has been established that already with the content of synthesized additives in lubricating oils in the amount of 0.5 wt. % antiwear properties are improved more than twice. It has been shown that additives exhibit a complex antioxidant effect and high efficiency at all stages of the oxidation process, and even at ultra-low concentrations (0.005 wt. %), their ability to resist oxidation exceeds widely used analogs. New additives are of considerable interest to modern lubrication science, and they can be used in motor oil compositions and other lubricants.

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9

Wu, Daoyi, Yufu Xu, Lulu Yao, Tao You, and Xianguo Hu. "Tribological behaviour of graphene oxide sheets as lubricating additives in bio-oil." Industrial Lubrication and Tribology 70, no. 8 (November 12, 2018): 1396–401. http://dx.doi.org/10.1108/ilt-11-2017-0356.

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Анотація:

Purpose This paper aims to study the upgradation of the lubricating performance of the renewable base oil , and to study the tribological behavior of graphene oxide (GO) sheets used as lubricating additives in bio-oil for iron/steel contact. Design/methodology/approach A multifunctional end-face tribometer was used to characterize the friction coefficient and wear loss of the tribosystem under different lubricants. Findings The experimental results show that GO sheets with small size benefit lubricating effects and the optimal concentration of GO sheets in bio-oil is 0.4-0.6 per cent, which can form a complete lubricating film on the frictional interfaces and obtain a low friction coefficient and wear loss. Higher concentration of GO sheets can result in a significant aggregation of the sheets, reducing the content of the lubricating components in the bio-oil, which results in the increase in friction and wear; at this stage, the main wear pattern was ascribed to adhesive wear. Practical implications These results show a promising prospect of improving the tribological performance of renewable base oil with the introduction of GO sheets as additives. Originality/value No literature has covered the tribological behaviour of GO sheets in bio-oil. This study contributes to accelerating the application of bio-oil.

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10

Nandi, Manishita, and Pranab Ghosh. "Evaluation and Synthesis of Environmentally Benign Multifunctional Additives for Lube Oil." Asian Journal of Chemical Sciences 14, no. 1 (February 3, 2024): 42–49. http://dx.doi.org/10.9734/ajocs/2024/v14i1284.

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Behenyl acrylate (BA) homo-polymer and its copolymers with citral were synthesized with varying percentage compositions (w/w) and subjected to thorough characterization through GPC (gel permeation chromatography) analysis and spectroscopic techniques (FT-IR, NMR). The polymers' capability was assessed through viscosity index improvers/viscosity modifiers (VII or VM), anti wear (AW) additives and pour point depressants (PPD) for base oils (lubricating oil). The action mechanism of the PPD properties was investigated through photomicrographic analysis. Additionally, the thermal stability of the polymers was measured using TGA or thermo gravimetric analysis. Biodegradability tests on copolymers were conducted using soil burial test (SBT) and the Disc Diffusion (DD) method. The copolymers exhibited exceptional PPD, VII, and AW performance when incorporated into lubricating oil.

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