Stability of thin plasma polymer films applied on coil coatings

authors	Serra, R; Zheludkevich, ML; Ferreira, MGS
nationality	International
journal	PLASMA PROCESSES AND POLYMERS
author keywords	coatings; immersion resistance; microwave discharges; plasma polymerization; surface modification
keywords	SURFACE MODIFICATION; CARBON-FILMS; FLUOROPOLYMER COATINGS; BARRIER PROPERTIES; DEPOSITION; MICROWAVE; DIAMOND; HEXAMETHYLDISILOXANE; ADHESION; GROWTH
abstract	The present work is devoted to the investigation of the stability of thin plasma polymer films of silica-based material, which were deposited on top of polyurethane coil coatings. Microwave plasma polymerization was used with different precursor mixtures in order to produce thin polymer layers. The effects of precursor gas composition and of pressure were analyzed from the standpoint of the immersion stability of the plasma-deposited polymer films. The results we obtained demonstrate a strong dependence of the immersion resistance on the gas precursor composition and pressure. Decrease of the operating pressure and of the oxygen concentration in precursor mixtures leads to the formation of more compact layers with a higher stability. Introduction of a fluorine-containing component in the precursor mixtures also increases the stability of the plasma-deposited polymer coatings.
publisher	WILEY-V C H VERLAG GMBH
issn	1612-8850
year published	2006
volume	3
issue	8
beginning page	618
ending page	626
digital object identifier (doi)	10.1002/ppap.200600029
web of science category	Physics, Applied; Physics, Fluids & Plasmas; Physics, Condensed Matter; Polymer Science
subject category	Physics; Polymer Science
unique article identifier	WOS:000241645000005