Issue 11, 2016

Molecularly thin fluoro-polymeric nanolubricant films: tribology, rheology, morphology, and applications

Abstract

Molecularly thin perfluoropolyether (PFPE) has been used extensively as a high-performance lubricant in various applications and, more importantly, on carbon overcoats to enhance the reliability and lubrication of micro-/nanoelectro-mechanical systems, where the tribological performance caused by its molecular architecture is a critical issue, as are its physical properties and rheological characteristics. This Highlight addresses recent trends in the development of fluoro-polymeric lubricant films with regard to their tribology, rheology, and physio-chemical properties as they relate to heat-assisted magnetic recording. Nanorheology has been employed to examine the dynamic response of nonfunctional and functional PFPEs, while the viscoelastic properties of nanoscale PFPE films and the relaxation processes as a function of molecular structure and end-group functionality were analyzed experimentally; furthermore, the characteristics of binary blends were reported.

Graphical abstract: Molecularly thin fluoro-polymeric nanolubricant films: tribology, rheology, morphology, and applications

Article information

Article type
Highlight
Submitted
30 Sep 2015
Accepted
12 Feb 2016
First published
12 Feb 2016

Soft Matter, 2016,12, 2816-2825

Molecularly thin fluoro-polymeric nanolubricant films: tribology, rheology, morphology, and applications

P. S. Chung, M. S. Jhon and H. J. Choi, Soft Matter, 2016, 12, 2816 DOI: 10.1039/C5SM02434J

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