Characterization of surfaces of various polymers by electron spectroscopy
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/27722
Journal of Molecular Structure
- Conference Paper 
X-ray induced photo and Auger electron spectroscopic techniques have been used to characterize the surface composition of biaxially oriented polypropylene sheets with and without corona discharge treatment. The surfaces of polypropylene sheets without corona treatment contain very small amounts of O and the Cls peak is narrow, consisting mainly of -CH groups and less than 5% -C-O groups. After corona treatment the intensity of the Ols peak increases by a factor of 8, the Cls peak broadens and -C-O intensity increases by a factor of 3. The surfaces of aluminized polypropylene contains both aluminium oxide and metallic aluminium. From the measured intensity ratio of the Al3+/Al0 peaks the thickness of the oxide layer is estimated to be smaller than 4 nm. Aging increases the carbon content of the surface without changing the aluminium oxide/metal composition.