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Atomic force microscopy analysis of cellulose triacetate surface modified in low temperature argon plasma and its adhesion behavior
Author(s) -
Koo Kang,
Mi Park Young,
Yeong Yu Jae
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.24267
Subject(s) - cellulose triacetate , contact angle , wetting , argon , plasma , materials science , surface roughness , adhesion , composite material , analytical chemistry (journal) , cellulose , torr , surface finish , adhesive , chemical engineering , chemistry , chromatography , organic chemistry , polymer , layer (electronics) , physics , quantum mechanics , engineering , thermodynamics
The surface of cellulose triacetate (CTA) film was modified with gaseous plasma of several discharge power in the presence of Argon (Ar) gas at 0.5 torr pressure. After gas plasma etching, the surface structure of the films is analyzed by atomic force microscopy (AFM) and measured with peel strength. Furthermore, the wetting properties of the CTA film treated with Ar plasma are studied by contact angle measurement. Peel strength after plasma treatment was increased with increasing plasma treatment time. However, treatments of plasma greater than 7 min did not find an additional increase in peel strength, similarly to roughness and morphological changes of AFM. The water contact angle decreased for an initial treatment time due to the improved wettability of the film, but showed an increasing trend for a higher treatment time (7 min). These results show that Ar plasma treatment is a convenient tool for improving the adhesive properties of CTA film. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 3963–3971, 2006