| PP | Polypropylene |
| VUV | Vacuum ultraviolet |
| WCA | Water contact angle |
| XPS | X-ray photoelectron spectroscopy |
| SIMS | Secondary ion mass spectrometry |
| FTIR | Fourier-transform infrared |
| AFM | Atomic force microscopy |
| SEM | Scanning electron microscopy |
| RF | Radiofrequency |
| PCSFE | Polar component of the surface free energy |
| SFE | Surface free energy |
| MW | Microwave |
| DBD | Dielectric barrier discharge |
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