Please use this identifier to cite or link to this item:
|Title:||Tribological properties of ultra-thin functionalized polyethylene film chemisorbed on Si with an intermediate benzophenone layer||Authors:||Minn, M.
|Issue Date:||Jan-2011||Citation:||Minn, M., Soetanto, Y.S.G., Sinha, S.K. (2011-01). Tribological properties of ultra-thin functionalized polyethylene film chemisorbed on Si with an intermediate benzophenone layer. Tribology Letters 41 (1) : 217-226. ScholarBank@NUS Repository. https://doi.org/10.1007/s11249-010-9703-4||Abstract:||In this study, an ultra-thin (~20 nm) functionalized polyethylene (fPE) film is successfully attached to Si substrate via a reactive benzophenone (Ph 2CO) layer. The presence of fPE promotes wear durability of Si/Ph 2CO/fPE to 1,000 cycles compared with 100 cycles for Si/Ph 2CO and nearly zero wear life for bare Si in a ball-on-disk (4-mm-diameter Si 3N 4 ball) wear test under 40 mN applied normal load and 500 rpm sliding speed. As an enhancement to the wear life, perfluoropolyether (PFPE) is applied as a top mobile lubricant layer coated onto Si/Ph 2CO and Si/Ph 2CO/fPE. A significant improvement in the wear durability is observed as Si/Ph 2CO/PFPE fails at 250,000 cycles and Si/Ph 2CO/fPE/PFPE does not fail until one million cycles. Si/Ph 2CO/fPE/PFPE can withstand a minimum applied load of 150 mN at a sliding speed of 0.052 ms -1 without failure, providing a PV (pressure x velocity) limit of greater than 106.6 MPa ms -1. © 2010 Springer Science+Business Media, LLC.||Source Title:||Tribology Letters||URI:||http://scholarbank.nus.edu.sg/handle/10635/85810||ISSN:||10238883||DOI:||10.1007/s11249-010-9703-4|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Mar 4, 2021
WEB OF SCIENCETM
checked on Feb 24, 2021
checked on Feb 28, 2021
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.