SPREADING OF LIQUIDS ON HIGHLY CURVED SURFACES

被引:121
作者
QUERE, D [1 ]
DIMEGLIO, JM [1 ]
BROCHARDWYART, F [1 ]
机构
[1] UNIV PARIS 06,CNRS,UA 1319,F-75252 PARIS 05,FRANCE
关键词
D O I
10.1126/science.249.4974.1256
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Because of surface tension, liquid films coating fibers or the insides of capillary tubes are usually unstable and break up into a periodic array of droplets. However, if these films are very thin (of thickness in the range of tens of angstroms), they can be stabilized by long-range van der Waals forces. A simple method for making such wetting films consists of slowly drawing the fiber out of a bath of liquid; the thickness of the film is then measured using a method based on gas chromatography. If these liquid films are thick, and are forced to flow, they may then not break up: the instability becomes "saturated.".
引用
收藏
页码:1256 / 1260
页数:5
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