How Wetting Properties Influence the Wear of Radial Lip Sealing Systems

Fricker, Philipp; Baumann, Matthias; Bauer, Frank

doi:10.1002/ceat.202200375

Cited by 1 publication

(2 citation statements)

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“…It has been shown that better lubricant wetting of a surface contributes to improved friction properties. 7 Improved wetting of a liquid lubricant on aluminum surfaces can be achieved either by reducing the surface tension or viscosity of the lubricant, or by increasing the surface energy of the aluminum sheet. There have been studies to modify the lubricant composition to improve lubricant spreading on the surface, 8,9 with some successful results in reducing friction and wear.…”

Section: ■ Introductionmentioning

confidence: 99%

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Multifunctional Aluminum Pre-treatments from End-Functionalized Phosphonic Acid Self-Assembled Monolayers

Yeo,

Bleich,

Guérin

et al. 2024

Langmuir

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Aluminum alloys are used in advanced engineering applications as they possess a combination of favorable properties, including high strength, lightweightness, good corrosion resistance, machineability, and recyclability. Such applications often require forming the sheets into the final components, which is typically aided by an oil-based lubricant, followed by joining them using adhesives, which is hampered by residual lubricant. In this work, aluminum surfaces were modified with different self-assembled monolayers (SAMs), with the goal of significantly reducing the amount of lubricant while simultaneously improving friction properties, forming, and bonding performance. Our results show that SAMs terminated with hydrophilic and nucleophilic end groups give rise to high-energy surfaces with wetting properties that are stable over time. These surfaces showed significantly improved surface wetting by the lubricant, which in turn resulted in an improved forming performance at reduced lubricant coat weights. Moreover, the nucleophilic SAM termination provided outstanding performance in adhesive bonding tests under corrosive conditions.

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Section: ■ Introductionmentioning

confidence: 99%

“…It has been shown that better lubricant wetting of a surface contributes to improved friction properties . Improved wetting of a liquid lubricant on aluminum surfaces can be achieved either by reducing the surface tension or viscosity of the lubricant, or by increasing the surface energy of the aluminum sheet.…”

Section: Introductionmentioning

confidence: 99%