Polypropylene (PP) samples were treated by Dielectric Barrier Discharge (DBD) in order to modify their surface characteristics. The XPS analysis reveals that the DBD treatment added oxygen atoms to the PP surface. These polar groups cause increase in the wettability as shown by water contact angle measurements. The formation of low-molecular-weight oxidized materials (LMWOMs) in the form of small nodules on the PP surface was observed by atomic force microscopy (AFM). The presence of oxygen polar groups on the PP surface was also confirmed by infrared spectroscopy (FTIR). All analysis were performed before and after rinsing the treated samples in water and showed that the LMWOM can be removed from the surface by polar solvents.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - Jan 1 2012|
|Event||14th Latin American Workshop on Plasma Physics, LAWPP 2011 - Mar del Plata, Argentina|
Duration: Nov 20 2011 → Nov 25 2011
ASJC Scopus subject areas
- Physics and Astronomy(all)