A Comprehensive Review of Water-Based Nanolubricants

Morshed, Afshana; Wu, Hui; Jiang, Zhengyi

doi:10.3390/lubricants9090089

Cited by 34 publications

(13 citation statements)

References 290 publications

(512 reference statements)

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“…SDBS is an organic dispersant that has a linear structure with a hydrophilic group, which helps improve the wettability, dispersion stability and viscosity of the water-based lubricants [23]. Snailcool is a novel water-soluble extreme pressure agent that not only enhances the extreme pressure property of the lubricants, but also improves the lubrication performance [34]. All the chemical additives are nontoxic and biodegradable to environment.…”

Section: Methodsmentioning

confidence: 99%

“…Among all the candidates of aqueous nanoadditives, nano-TiO 2 has gained popularity in the syntheses of water-based nanolubricants on account of their low cost and exceptional dispersion stability in water [31][32][33]. Applying such lubricants containing TiO 2 NPs in hot steel rolling has demonstrated great potential in reducing rolling force, alleviating roll wear, decreasing oxide scale thickness, improving strip surface quality, and refining grains in rolled steels [34]. A recent study also showed that such water-based nanolubricants could be synthesised in a facile process with a super low operating cost, which sheds some light on industrial-scale hot steel rolling [35].…”

Section: Introductionmentioning

confidence: 99%

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The influence of water-based nanolubrication on mill load and friction during hot rolling of 304 stainless steel

Wei

Hee

et al. 2022

Int J Adv Manuf Technol

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Using pure water in comparison to water-based lubricant containing 4% TiO2 nanoparticles (NPs), the hot rolling tests of 304 stainless steel were carried out at a rolling temperature of 1050 °C under varying rolling reductions and speeds. The effects of lubrication on rolling force, torque, power and contact friction were systematically investigated. The coefficient of friction (COF) during steady-state hot steel rolling was inversely calculated using a developed flow stress model. The COF models including the effects of rolling reduction and speed were proposed via multiple linear regression. The results indicated that the use of the nanolubricant enabled a reduction of rolling force up to 6.1% and decreases in rolling torque and power up to 21.6%, compared to that of water condition. The results obtained from the linear regression agreed well with those from the inverse calculation, suggesting the developed COF models had high accuracy. The lubrication mechanisms were derived from a boundary lubrication regime, owing to ball bearing and mending effects of TiO2 NPs, and formation of thin lubricant film under high rolling pressure.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The influence of water-based nanolubrication on mill load and friction during hot rolling of 304 stainless steel

Wei

Hee

et al. 2022

Int J Adv Manuf Technol

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“…Hydration lubrication has indeed been widely used to explain macroscopic experimental phenomena and biological lubrication, including cartilage lubrication, 9 hydrogel lubrication, 21 and machine lubrication. 22 …”

Section: Introductionmentioning

confidence: 99%

Hydration Lubrication in Biomedical Applications: From Cartilage to Hydrogels

Lin

Klein

2022

Acc. Mater. Res.

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Conspectus In the course of evolution, nature has achieved remarkably lubricated surfaces, with healthy articular cartilage in the major (synovial) joints being the prime example, that can last a lifetime as they slide past each other with ultralow friction (friction coefficient μ = the force to slide surfaces past each other/load compressing the surfaces < 0.01) under physiological pressures (up to 10 MPa or more)). Such properties are unmatched by any man-made materials. The precise mechanism of low friction between such sliding cartilage tissues, which is closely related to osteoarthritis (OA), the most widespread joint disease, affecting hundreds of millions worldwide, has been studied for nearly a century, but is still not fully understood. Traditionally, the roles of load bearing by interstitial fluid within the cartilage bulk and that of thin exuded fluid films at the interface between the sliding cartilage surfaces have been proposed as the main lubrication mechanism. More recent work, however, suggests that molecular boundary layers at the surfaces of articular cartilage and other tissues play a major role in their lubrication. In particular, in recent years hydration lubrication has emerged as a new paradigm for boundary lubrication in aqueous media based on subnanometer hydration shells which massively reduce frictional dissipation. The vectors of hydration lubrication include trapped hydrated ions, hydrated surfactants, biological macromolecules, biomimetic polymers, polyelectrolytes and polyzwitterionic brushes, and close-packed layers of phosphatidylcholine (PC) vesicles, all having in common the exposure of highly hydrated groups at the slip plane. Among them, vesicles (or bilayers) of PC lipids, which are the most widespread lipid class in mammals, are exceptionally efficient lubricating elements as a result of the high hydration of the phosphocholine headgroups they expose. Such lipids are ubiquitous in joints, leading to the proposal that macromolecular surface complexes exposing PC bilayers are responsible for the remarkable lubrication of cartilage. Cartilage, comprising ∼70% water, may be considered to be a complex biological hydrogel, and studying the frictional properties of hydrogels may thus provide new insights into its lubrication mechanisms, leading in turn to novel, highly lubricious hydrogels that may be used in a variety of biomedical and other applications. A better understanding of cartilage lubrication could moreover lead to better treatments for OA, for example, through intra-articular injections of appropriate lubricants or through the creation of low-friction hydrogels that may be used as tissue engineering scaffolds for diseased cartilage. In this Account, we begin by introducing the concept and origin of hydration lubrication, extending from the seminal study of lubrication by hydrated simple ions to more complex systems. We then briefly review different modes of lubrication in synovial joints, focusing primarily on boundary lubrication. We con...

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“…According to the history of the development of lubricant additives, nanoparticles are a relatively new class of additives to lubricant materials. It includes colloidal solid particles contained in lubricant oil [12][13][14][15][16]. The main components of nano oil materials are lubricant/basic oil, a nano oil additive, and a surfactant.…”

Section: Introductionmentioning

confidence: 99%

“…The direction of nanomaterials has received much recent development [16][17][18][19][20][21]. Nanostructured additives are used everywhere in mechanical engineering and vehicle operation.…”

Section: Introductionmentioning

confidence: 99%

Study on Frictional Properties of Fine Powder Materials

Gritsenko¹,

Baryshnikov²,

Shepelev³

et al. 2022

Tribol. Ind.

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The operating parameters of present-day engines depend on many factors, including the lubrication system. The lubrication system not only reduces friction between the surfaces of moving parts, but also contributes to their cooling and cleans engine parts from carbon deposits and impurities. High environmental requirements are also imposed on the quality of the lubricants, while maintaining their specifications. To that end, various additives are added to lubricating oil. The paper studies the effect of fine powders (enamels) on the wear of friction pairs in laboratory tests. The tests are mainly carried out for all-season synthetic and mineral oils in demand. Such criteria as wear of a roller and upper and lower bearings, specific wear of friction pairs, moment load, and temperature are selected as the effectiveness evaluation criteria of the use of enamels and nanomaterials. Experimental studies show a high efficiency of using enamels as additives to reduce friction and increase the load-carrying capacity of oils. The temperature in the friction layer is reduced by 10-20%, depending on the enamel concentration in the oil. The enamel acts as a third body with a lower friction coefficient and energy to failure, which increases the actual contact area of the friction pairs. The results of the study can be applied in the development of motor oils with fine enamel as an additive.

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A Comprehensive Review of Water-Based Nanolubricants

Cited by 34 publications

References 290 publications

The influence of water-based nanolubrication on mill load and friction during hot rolling of 304 stainless steel

The influence of water-based nanolubrication on mill load and friction during hot rolling of 304 stainless steel

Hydration Lubrication in Biomedical Applications: From Cartilage to Hydrogels

Study on Frictional Properties of Fine Powder Materials

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