The stability of ultra-thin perfluoropolyether mixture films on the amorphous nitrogenated carbon surface

被引：5
|
作者：
Waltman, R. J. [1 ]
机构：
[1] Hitachi Global Storage Technol Inc, San Jose, CA 95193 USA
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2007年 / 313卷 / 02期
关键词：
perfluoropolyether; perfluoropolyether mixtures; autophobic dewetting; surface energy;
D O I：
10.1016/j.jcis.2007.04.045
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The thermodynamic stability of boundary lubricant films based upon mixtures of liquid perfluoropolyethers (PFPEs) is reported. Mixtures of A20H-2000 with Zdols 2000, 2500, and 4000 and Zdol-TX 2200 on amorphous carbon nitride films are investigated. An optical surface analyzer is used to image the autophobic dewetting of the mixture PFPE films. The critical dewetting thickness coincides with the monolayer thickness of the adsorbed mixture PFPE films as determined by the changes in the surface energy as a function of lubricant film thickness. The critical dewetting thickness varies linearly with mixture concentration. (c) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码：608 / 611
页数：4
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