| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5353360 | Applied Surface Science | 2014 | 7 Pages |
Abstract
The influence of a polydopamine (PDA) adhesive layer on the friction and wear resistance of polytetrafluoroethylene (PTFE) thin films coated on stainless steel was investigated. The friction and wear tests were carried out using a ball on flat configuration under a normal load of 50Â g, sliding speed of 2.5Â mm/s, and stroke length of 15Â mm. It is found that the PDA/PTFE film is able to withstand approximately 500 times more rubbing cycles than the PTFE film alone. X-ray photoelectron spectroscopy (XPS) results show that a tenacious layer of PTFE remains adhered to the PDA layer, which enables the durability of the PDA/PTFE film. Because of the relatively low thickness of the film, PDA/PTFE shows great potential for use in applications where durable, thin films are desirable.
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Authors
Samuel Beckford, Min Zou,