Fig. 3

Comparison of contact angles of different surfactants dropped on the biaxially oriented polypropylene (BOPP) films. a Water, b 500 µg/ml BSA, c 500 µg/ml SDS, d 500 µg/ml AXE, e 1000 µg/ml AXE, f 2000 µg/ml AXE
Comparison of contact angles of different surfactants dropped on the biaxially oriented polypropylene (BOPP) films. a Water, b 500 µg/ml BSA, c 500 µg/ml SDS, d 500 µg/ml AXE, e 1000 µg/ml AXE, f 2000 µg/ml AXE