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Roughness parameters root-mean-square (RMS) roughness Rq, interfacial development Sdr, kurtosis Rku and skewness Rsk of plasma-treated and untreated control PET films.
| Roughness Parameters | Corona (5 W cm−2 & 3.6 s) |
FLAIR® (200 W cm−2 & 0.09 s) |
Control |
|---|---|---|---|
| Rq (nm) | 20.98 ± 1.12 | 7.07 ± 1.01 | 3.83 ± 0.86 |
| Sdr | 0.45 ± 0.03 | 0.05 ± 0.004 | 0.02 ± 0.004 |
| Rku | 2.97 ± 0.67 | 18.41 ± 0.98 | 8.29 ± 0.25 |
| Rsk | −0.75 ± 0.05 | −2.76 ± 0.02 | −1.68 ± 0.09 |
