Table 1. Characterization of LDPE surfaces after plasma treatment.
Plasma treatment time (min) | 0 | 15 | 45 | 60 | 90 | 150 |
---|---|---|---|---|---|---|
Water contact angle (°) | 91±2 | 48±2 | 71±2 | 71±2 | 53±3 | 41±2 |
Roughness (Rq) (nm) | 4.6±1.0 | 5.1±0.5 | 9.8±0.8 | 12.4±0.8 | 8.6±0.8 | 5.5±0.4 |