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Pencil hardness, contact angles, and surface energies of different DCA samples. For comparison, the contact angles and surface energy of the PC film that were used in the adhesion test are also shown.
| Sample | Pencil Hardness | Contact Angle (°) | Surface Energy (mJ/m2) | |
|---|---|---|---|---|
| Water | Ethylene Glycol | |||
| DCA_GCE0 | H | 37.24 | 22.61 | 54.45 |
| DCA_GCE1 | HB | 69.78 | 41.27 | 45.70 |
| DCA_GCE2 | HB | 85.41 | 58.25 | 32.97 |
| DCA_GCE3 | B | 101.22 | 70.94 | 31.84 |
| DCA_BADGE2 | H | 69.77 | 40.14 | 45.84 |
| PC film | - | 79.35 | 56.08 | 35.74 |
