Enhancement of the Interlayer Interaction between Polystyrene and Polyvinyl Alcohol by Ozone Treatment

Table 1

Interaction force between PVA and PS.

PS-PVA film	Transverse crushing load	Friction coefficient	Axial load	Indentation depth
Untreated	1000 μN	0.32	3000 μN	890 nm
Ozonized	1400 μN	0.38	3800 μN	890 nm