Premium
Surface characterization of plasma‐treated PTFE
Author(s) -
Morra M.,
Occhiello E.,
Garbassi F.
Publication year - 1990
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.740160186
Subject(s) - contact angle , wetting , x ray photoelectron spectroscopy , argon , plasma , hysteresis , plasma cleaning , oxygen , chemistry , analytical chemistry (journal) , surface modification , surface energy , plasma chemistry , characterization (materials science) , materials science , chemical engineering , nanotechnology , composite material , chromatography , organic chemistry , physics , quantum mechanics , engineering
PTFE was treated with oxygen and argon plasmas and the effects of treatment were evaluated by actinometry, SEM, XPS, static SIMS and contact angle measurements. At short treatment times for both plasmas and at long treatment times for argon plasmas, chemical modification of the surface was dominant, while at longer oxygen plasma treatment times, surfaces are deeply etched but chemically equivalent to untreated PTFE. Interestingly, the change in surface chemistry is paralleled by a simultaneous variation in plasma chemistry, suggesting that the two vary accordingly. The wetting behaviour of treated surfaces is interopreted on the basis of current theories on surface dynamics and contact angle hysteresis.