Nano-structuring of PTFE surface by plasma treatment, etching, and sputtering with gold

0365419 - ÚJF 2012 RIV NL eng J - Journal Article
Reznickova, A. - Kolská, Z. - Hnatowicz, Vladimír - Svorcik, V.
Nano-structuring of PTFE surface by plasma treatment, etching, and sputtering with gold.
Journal of Nanoparticle Research. Roč. 13, č. 7 (2011), s. 2929-2938. ISSN 1388-0764. E-ISSN 1572-896X
R&D Projects: GA ČR GA106/09/0125; GA MŠMT(CZ) LC06041
Institutional research plan: CEZ:AV0Z10480505
Keywords : ARGON PLASMA * POLYMER-FILMS * POLYETHYLENE * DISCHARGE * POLYETHYLENETEREPHTHALATE
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 3.287, year: 2011

Properties of pristine, plasma modified, and etched (by water and methanol) polytetrafluoroethylene (PTFE) were studied. Gold nanolayers sputtered on this modified PTFE have been also investigated. Contact angle, measured by goniometry, was studied as a function of plasma exposure and post-exposure aging times. Degradation of polymer chains was examined by etching of plasma modified PTFE in water or methanol. The amount of ablated and etched layer was measured by gravimetry. In the next step the pristine, plasma modified, and etched PTFE was sputtered with gold. Changes in surface morphology were observed using atomic force microscopy. Chemical structure of modified polymers was characterized by X-ray photoelectron spectroscopy (XPS). Surface chemistry of the samples was investigated by electrokinetic analysis.
Permanent Link: http://hdl.handle.net/11104/0200664