A new observation in surface chemistry: the variation of liquid-solid-gas contact angle with change in gas pressure

Authors
Good, RJ Yu, CH
Citation
Rj. Good et Ch. Yu, A new observation in surface chemistry: the variation of liquid-solid-gas contact angle with change in gas pressure, COLL SURF A, 186(1-2), 2001, pp. 17-21
Citations number
5
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN journal
09277757 → ACNP
Volume
186
Issue
1-2
Year of publication
2001
Pages
17 - 21
Database
ISI
SICI code
0927-7757(20010731)186:1-2<17:ANOISC>2.0.ZU;2-V
Abstract
The contact angles of water and of diiodomethane (DIM) on Teflon LFEP and o n polymethylmethacrylate (PMMA), and also on a copolymer of hydroxybutyrate and hydroxyvalerate, has been measured. It was found that the contact angl e decreases with pressure, in all but one of the systems studied. The decre ase in contact angle is appreciable (of the order of 0.2 degrees per atmosp here), except for the case of water on PMMA. (C) 2001 Elsevier Science B.V. All rights reserved.