Title :
Humidity Effects on the Relaxation of Perfluoropolyether Lubricant Films
Author :
Chen, H. ; Guo, Q. ; Li, L. ; Hsia, Y. ; Jhon, M.S.
Author_Institution :
Carnegie Mellon Univ., Pittsburgh
Abstract :
In this paper, humidity effects on the relaxation of perfluoropolyether (PFPE) films were examined by bonded fraction and surface energy measurements. MD simulation with a bead-spring model was also performed. The calculated relaxation time for a functional PFPE molecule in the film was found to be shorter at high humidity, which is consistent with the experimental results.
Keywords :
humidity; lubricants; molecular dynamics method; polymer films; relaxation; surface diffusion; surface energy; MD simulation; PFPE films; bead-spring model; bonded fraction measurement; humidity effects; lubricant films; perfluoropolyether relaxation; surface energy measurement; Bonding; Chemical engineering; Chemical technology; Data storage systems; Energy measurement; Humidity; Lubricants; Magnetic films; Tribology; Vehicle dynamics;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.376369
