New environmentally friendly lubricants are needed to reduce the energy losses due to friction and wear of materials. Several families of room-temperature ionic liquids have been studied as a function of their composition, structure and properties. New ammonium protic ionic liquids (PILs) have been used as lubricants and lubricant additives in water and in synthetic lubricants. This allows to avoid the use of imidazolium derivatives with halogen-containing anions. Phosphorus-containing ionic liquids can develop new surface coatings to protect light alloys from wear. The ability of ionic liquids to modify and disperse nanoparticles and carbon nanophases allows to obtain new ionic nanofluids which can be used as lubricants and lubricant additives. These modified ionic nanomaterials can be added to polymer matrices to obtain new nanocomposites with enhanced wear and abrasion resistance. In all cases, a deep understanding of the surface and interface interactions and surface tribochemistry is needed.

Tribological performance and surface interactions of new ionic nanofluids and nanomaterials

244th National Meeting (2012)

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