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Effect of Friction Reducers with Unreinforced PEEK and Steel

The increasing adoption of PEEK (polyetheretherketone) in many industrial applications has promoted intense research to optimize its lubrication along with the development of friction reducers (FRs), additives that help in reducing fuel consumption and, consequently, CO2 emissions. In this study, the effect of FRs in improving the lubrication of PEEK–steel

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Evaluation of Antioxidant Properties and Molecular Design of Lubricant

Two quantitative structure–property relationship (QSPR) models of hindered phenolic antioxidants in lubricating oils were established to help guide the molecular structure design of antioxidants. Firstly, stepwise regression (SWR) was used to filter out essential molecular descriptors without autocorrelation, including electronic, topological, spatial, and

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DDP-functionalized UiO-67 nanoparticles as lubricating oil

Interfacial modification [25], [26] is an effective method to improve the compatibility between MOFs additives and base lubricating oil [27].Meanwhile, the surface functionality of Zr-MOFs can be easily tuned due to the presence of ligated unsaturated metal sites and tunable organic linkers [3].As a traditional anti-wear additive, zinc

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Pyrolysis process and mechanism for calcium elimination of used

The FTIR spectra was shown in Fig. 8 A. Lubricating base oil, a product of multistep fine refining of the relevant fractions from vacuum distillation of crude oil, was the main component of so-called mineral lubricating oils containing aliphatic and alicyclic substituted aromatic hydrocarbons, i.e., derivatives of benzene and biphenyl [55]. The

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Additives for Lubricating Oil and Grease: Mechanism, Properties

By comparing the energy storage modulus and flow transition index at different temperatures, it can be found that the addition of an appropriate amount of LDHs has an important effect on the oxidation resistance and viscoelasticity of the system.

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Lubricating Oil 101: The Basics You Need to Know | MachineMFG

These properties are especially crucial for multi-stage oils and energy-saving oils. Rust resistance. This refers to the specific physical and chemical properties of anti-rust grease. Its test methods include the humidity test, salt spray test, lamination test, water displacement test, as well as the shutter box test, long-term storage test

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A review on the use of coconut oil as an organic phase

As the energy demand is increasing and conventional energy sources are declining, renewable energy sources are becoming increasingly popular. It is very important to store this energy efficiently. The use of phase change materials (PCMs) as latent heat thermal energy storage (LHTES) technology has utmost importance to researchers due to its high

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Hydrogels for Lubrication: Synthesis, Properties, Mechanism, and

Hydrogels have received extensive attention as functional lubricants because of their excellent anti-friction and anti-wear properties, tunable tribological performances, and effectiveness in alleviating lubrication failures caused by the creeping or leakage of conventional liquid lubricants owing to their semi-solid nature. This review summarizes the current research

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Tribological Properties of Nano-Scale Al2O3 Particles with

Enhancing lubrication across various tribological systems in the maritime industry is essential for improving safety, efficiency, and environmental sustainability. Al2O3 nanoparticles, employed as additives in lubricating oils, demonstrate favorable tribological properties including anti-wear and anti-friction characteristics. In this work, nano-scale γ-Al2O3

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Characterization of Thermal Stability of Synthetic and Semi

Engine oils undergo oxidative degradation and wears out during service. Hence it is important to characterize ageing of engine oils at different simulated conditions to evaluate the performance of existing oils and also design new formulations. This work focuses on characterizing the thermo-oxidative degradation of synthetic and semi-synthetic engine oils

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Lubricant Classification and Selection: A Comprehensive Guide

The pour point is an indirect measure of a lubricating oil''s low-temperature fluidity, critical for storage, transportation, and usage in cold environments. Industry best practices dictate that the operating temperature should be 5-10°C higher than the pour point to ensure adequate flow and lubrication.

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The Enhancement of Overall Performance of Lubricating Grease

Lubricating grease is a colloid-dispersed system in which base stock (mineral or synthetic oil) is trapped in a three-dimensional network of thickener [].Grease has obvious advantages over lubricating oil in terms of load-bearing capacity, sealing, and corrosion prevention because grease does not flow away from the contact surface [2,3] iction and

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Accelerated Aging Behaviors and Mechanism of

The lubricating oil Mobile Jet Oil II that is commonly used in civil and military aviation gas turbine engines was supplied by ExxonMobil. The density of the lubricating oil is 1.0035 kg/L at 15 °C and the flash temperature is about 270 °C. As a military used lubricating oil, the constituents are

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Understanding the Properties of Lubricating Oils | MachineMFG

Lubricating oil generally consists of two parts: base oil and additives. The base oil is the main component of lubricating oil, determining its basic properties. Additives can compensate for and improve the performance deficiencies of the base oil, endow some new properties, and are an important component of lubricating oil. Storage of

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Multiscale study on the solid-liquid synergistic lubrication mechanism

Both transfer film and lubricating oil film exist on the friction interface, and the lubricating oil film protects the counter ball from excessive oxidation. At the same time, with combination of molecular dynamics (MD) simulation and first-principles calculations, the synergistic lubrication mechanism of graphite and PAO was manifested.

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Oil and petroleum products explained Refining crude oil

Energy Information Administration - EIA - Official Energy Statistics from the U.S. Government An overview of and data on inputs of crude oil and other liquids in oil refineries and resulting products of oil refining. Asphalt and road oil: 0.84: Residual fuel oil: 0.71: Lubricants: 0.38: Naptha for feedstocks: 0.34: Other oils for feedstocks

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Oil-in-Oil emulsions of stearic acid dispersed in silicone oil with

From the DSC results, it can be settled that the incorporation of stearic acid into silicone oil with the aid of surfactant in the PCMEs has little impact on the phase transition enthalpy of the first (Table 1), which is really positive for heat storage applications.However, when compared to pure stearic acid, a slight decrease in both enthalpies (ΔH m and ΔH c) for

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Lubricants | Free Full-Text | Explosion Mechanism of Lubricating Oil

Feature papers represent the most advanced research with significant potential for high impact in the field. A Feature Paper should be a substantial original Article that involves several techniques or approaches, provides an outlook for future research directions and describes possible research applications.

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A Lubricating Oil Condition Monitoring System Based on Wear

Lubricating oil monitoring technology is a commonly used method in aeroengine condition monitoring, which includes particle counting technology, as well as spectral and ferrography technology in offline monitoring. However, these technologies only analyze the characteristics of wear particles and rely on physical and chemical analysis techniques to

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Deterioration Mechanism and Status Prediction of Hydrocarbon Lubricants

In practical engineering applications, high temperatures and water ingress seriously affect the service life of hydrocarbon lubricants. In this study, the deterioration process of hydrocarbon lubricants under high temperatures and humid environments was investigated, and a new health state prediction model was proposed. Simulation of hydrocarbon lubricant

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Assessment of the chemical degradation of PFPE lubricants

Liquid lubricants and greases used in space applications are generally susceptible to degradation or aging. Depending on the specific material combination and storage conditions, aging effects are also relevant for long-term storage (LTS). An overview on both physical and chemical aging processes for liquid lubricants and greases is given and

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Study on the mechanisms of the lubricating oil antioxidants

The oxidation of lubricating oils seriously affects the operation of machinery, the O 2 in the air has a strong impact during the oxidation process. Here, in ester-based lubricating oil, i.e. with the trimethylolpropane trioleate (TMPTO) as the main component, the mobility and activity of the hindered phenolic antioxidants, and the permeability of O 2 were investigated by

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Explosion Mechanism of Lubricating Oil Droplets in High

Lubricating oil-induced pre-ignition is a critical issue that requires attention in downsized gasoline engines and marine low-speed two-stroke natural gas engines. As a result, the ignition behavior of lubricating oil at high temperatures and pressures has been extensively studied. In some cases, when studying the ignition of oil droplets using a rapid compression

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A novel 2D/2D MoS2/CeO2 nanohybrid and its lubricating mechanism

And MoS 2 /CeO 2-rapeseed oil had outstanding lubricating performance. It exhibited a remarkable 42.71% reduction in COF and a 70.14% decrease in wear rate compared to rapeseed oil. This study might not only promote the development of lubricant additives for MoS 2-based 2D materials but also propose a plausible mechanism of synergistic lubrication.

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About Energy storage mechanism lubricating oil

About Energy storage mechanism lubricating oil

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6 FAQs about [Energy storage mechanism lubricating oil]

Which lubrication systems were designed?

Conclusions In this work, three groups of lubrication systems were designed, including: MoS 2 film lubrication, synergistic lubrication of MoS 2 film and gear oil, and the T-Go hybrid oil and MoS 2 film composite lubricating coating.

How to improve tribological properties of lubricating oil?

Adjusting the viscosity of lubricating oil and using lubricating oil additives are effective methods to improve the tribological properties of lubricating oil . 2D materials are commonly used as lubricant additives in oils to achieve different functions in the contact area.

Does lubricating oil scavenge free radicals?

By combining the experiments and simulations, the solubility, diffusivity, and permeability of O 2 in lubricating oil, and the diffusion behavior and the activity to scavenge free radicals of antioxidants in lubricating oil have been explored.

What is lubricating oil & grease?

Lubricating oil and grease serve as essential components that reduce friction, wear, and prolong the life of moving mechanical parts. The effectiveness of the formulation of the lubricant and grease is easily impacted by various factors, such as temperature, pressure, and heavy loads.

How to improve oxidation stability and service life of lubricating oils?

To improve the oxidation stability and service life of lubricating oils, the composition and structure of antioxidants should be strategically designed, and these parameters have significantly affected the performance of antioxidants in lubricating oils.

What is lubrication theory?

Lubrication theory is linked to numerous fields of expertise outside of tribology, and without this interdisciplinary aspect, the progression of lubricants and lubrication technologies within the vast array of applications may not have reached the necessary levels of success.

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