NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Friction and Adhesion Measurements Between a Florocarbon Surface and a Hydrocarbon Surface to Air
Published
Author(s)
P M. McGuiggan
Abstract
The friction and adhesion between a fluorocarbon monolayer-coated surface (FC) against a hydrocarbon monolayer-coated surface (HC) has been directly measured. The friction was found to be lower than the friction between a hydrocarbon monolayer against a hydrocarbon monolayer and a fluorocarbon monolayer against a fluorocarbon monolayer. No stick slip sliding was observed for speeds 0.8 m/s to 2.6 m/s. The fluorocarbon/hydrocarbon interface was adhesive, with the energy of interaction measured to be 14.9 mJ/m2 1.0 mJ/m2. As predicted from theory, the magnitude of the adhesion of a fluorocarbon monolayer against a hydrocarbon monolayer is between that measured for a fluorocarbon monolayer against a fluorocarbon monolayer and a hydrocarbon monolayer against a hydrocarbon monolayer. One may note that the interfacial energy, g, follows the general trend gFC/FC < gHC/FC < gHC/HC, whereas the shear stress, t, varies according to tFC/HC < tHC/HC < tFC/FC.
McGuiggan, P.
(2008),
Friction and Adhesion Measurements Between a Florocarbon Surface and a Hydrocarbon Surface to Air, Journal of Adhesion
(Accessed October 13, 2025)