Surface modification of Teflon® PFA with vacuum UV photo-oxidation
作者： W. Dasilva , A. Entenberg , B. Kahn , T. Debies , G. A. Takacs
DOI: 10.1163/156856106777144318
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摘要: Surface modification of poly(tetrafluoroethylene-co-perfluoropropyl vinyl ether) (PFA) with vacuum UV (VUV) photo-oxidation using radiation from excited Ar atoms downstream an microwave (MW) plasma shows: (1) improvement in wettability as observed by water contactangle measurements; (2) surface roughening; (3) incorporation oxygen C=O, CF—O—CF2 and CF2—O—CF2 moieties (4) enhancement the CF—O—C n F2n+1 concentration. Adhesion measurements Cu sputter coated onto photo-oxidized PFA results failure within (cohesive failure) not at Cu–PFA interface.
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