A High-Performance Multifunctional Lubricant Additive for Water–Glycol Hydraulic Fluid

Wang, Junming; Wang, Jianhua; Li, Chunsheng; Zhao, Gaiqing; Wang, Xiaobo

doi:10.1007/s11249-011-9799-1

Cited by 46 publications

(13 citation statements)

References 31 publications

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“…We can observe that all the RSOPE/W-EG solutions have anticorrosion properties for the copper surface and the corrosion grade were assigned as 1b. The copper strips immersed in RSOPE/W-EG solutions were no obvious corrosion and the color of the copper strips were still bright, indicating that the RSOPE additive in W-EG met the anti-corrosion requirements of WMCF for copper [17,18]. Fig.…”

Section: Corrosion Resistance Propertiesmentioning

confidence: 85%

Tribological Behavior of Plant Oil-Based Extreme Pressure Lubricant Additive in Water-Ethylene Glycol Liquid

Ding¹,

Yang²,

Xu³

et al. 2019

Journal of Renewable Materials

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A water-soluble lubricant additive (RSOPE) was prepared by esterification reaction using fatty acid from rubber seed oil. The RSOPE was added into water-ethylene glycol (W-EG) solution as lubricant additive. Dispersion stability and rheological properties were investigated. We used a four-ball tribotester to assess the lubrication performance of W-EG based fluid with the RSOPE additive. The stainless-steel surface was analyzed using scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). Good dispersion stability was observed in the RSOPE/W-EG solutions. Furthermore, non-Newtonian fluid behavior at low shear rates and Newtonian fluid behavior at high shear rates was exhibited. The addition of RSOPE into water-glycol reduced the friction coefficients (COF) and wear scar diameters (WSD). The maximum nonseizure loads (PB) increased from 98 N to 752 N and the W-EG solution with RSOPE had good corrosion resistance properties. Good tribological performances for W-EG solution with RSOPE were attributed to the boundary tribofilm composed of iron oxide, iron phosphide and so on.

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Section: Corrosion Resistance Propertiesmentioning

confidence: 85%

Tribological Behavior of Plant Oil-Based Extreme Pressure Lubricant Additive in Water-Ethylene Glycol Liquid

Ding¹,

Yang²,

Xu³

et al. 2019

Journal of Renewable Materials

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“…Furthermore it has to be done at a wide range of loads and speed. [9][10][11][12][13][14][15]. They all provide interesting results of e.g.…”

Section: State Of the Artmentioning

confidence: 86%

Simulation of Anti Wear Performance Using a Modified Brugger Test Set Up

Sequard-Base¹,

Grafl²,

Cihak-Bayr³

2018

Tribol. Ind.

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Modern hydraulic oils have to fulfill a broad variety of parameters limitations to guarantee a proper system performance throughout a considerable lifetime. A comprehensive test of the liquids nowadays just can be performed by using long term hydraulic pump test set ups, including several different test stages. One of the most critical parameters in hydraulic pump testing is the pump wear indicating the anti-wear performance of the used oil. In this paper the authors focused on the development of a new testing procedure based on a simple standardized Brugger test aiming to achieve similar wear results as in a Parker Denison T6H20C pump test set up. The test conditions of a standard Brugger test are changed by taking a brass cylinder, reducing the normal load to 1 kg, increasing the test duration to 300 seconds, providing a well-defined surface roughness by using a 2,500 x grinding paper and perform 4 repetition tests to obtain a statistical more reliable measurement value. By using the new method it was possible to get a pre selection between pass and fail oils according to the wear properties without the necessity of performing an elaborated pump test. The preselection of hydraulic oils according to their anti-wear properties offers a huge cost saving potential for hydraulic oil developments.

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“…Boron compounds are used extensively in a wide range of tribological applications as an environment-friendly friction modifier and antiwear additive. Both organic and inorganic boron compounds are used as a solid, liquid lubricant [ 145 , 146 , 147 ] and as a lubricant additive in organic and inorganic compounds [ 12 , 148 , 149 ]. Boron-based lubricants are mostly explored for industrial application as a solid or ionic liquid lubricant.…”

Section: Transition Metal Sulfides and Di-selenidesmentioning

confidence: 99%

Tribological Properties of 2D Materials and Composites—A Review of Recent Advances

2021

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This paper aims to provide a theoretical and experimental understanding of the importance of novel 2D materials in solid-film lubrication, along with modulating strategies adopted so far to improve their performance for spacecraft and industrial applications. The mechanisms and the underlying physics of 2D materials are reviewed with experimental results. This paper covers some of the widely investigated solid lubricants such as MoS2, graphene, and boron compounds, namely h-BN and boric acid. Solid lubricants such as black phosphorus that have gained research prominence are also discussed regarding their application as additives in polymeric materials. The effects of process conditions, film deposition parameters, and dopants concentration on friction and wear rate are discussed with a qualitative and quantitative emphasis that are supported with adequate examples and application areas and summarized in the form of graphs and tables for easy readability. The use of advanced manufacturing methods such as powder metallurgy and sintering to produce solid lubricants of superior tribological performance and the subsequent economic gain from their development as a substitute for liquid lubricant are also evaluated.

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A High-Performance Multifunctional Lubricant Additive for Water–Glycol Hydraulic Fluid

Cited by 46 publications

References 31 publications

Tribological Behavior of Plant Oil-Based Extreme Pressure Lubricant Additive in Water-Ethylene Glycol Liquid

Tribological Behavior of Plant Oil-Based Extreme Pressure Lubricant Additive in Water-Ethylene Glycol Liquid

Simulation of Anti Wear Performance Using a Modified Brugger Test Set Up

Tribological Properties of 2D Materials and Composites—A Review of Recent Advances

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